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ServiceManual
BiPAP Vision Service Manual 1045049
Copyright © 1998-2007 Respironics. All rights reserved.
The BiPAP Vision Ventilatory Support System is the subject of U.S. patents #5148802,#5239995, #5313937, #5433193, and other pending U.S. and foreign patents. BiPAP is a regis-tered trademark of Respironics.
BiPAP Vision Service Manual1045049
Limited WarrantyRespironics warrants that the BiPAP® VisionTM Ventilatory Support System (BiPAP Vision) shall be free from defectsof workmanship and materials and will perform in accordance with the product specifications for a period of one yearfrom the date of sale by Respironics. If the product fails to perform in accordance with the product specifications,Respironics will repair or replace—at its option—the defective material or part. Respironics will pay customaryfreight charges from Respironics to the dealer location only. This warranty does not cover damage caused byaccident, misuse, abuse, alteration, and other defects not related to materials or workmanship.
Respironics disclaims all liability for economic loss, loss of profits, overhead or consequential damages which maybe claimed to arise from any sale or use of this product. Some states do not allow the exclusion or limitation ofincidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty is given in lieu of all other express warranties. In addition, any implied warranty, including anywarranty of merchantability or fitness for the particular purpose, is limited to one year. Some states do not allowlimitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty givesyou specific legal rights, and you may also have other rights which vary from state to state.
The warranty for repairs is 90 days for labor and one year on the part(s) that was replaced.
To exercise your right under this warranty, contact your local authorized Respironics dealer or contact Respironicsat:
Visit Respironics Home Page on the World Wide Web at:
http://www.respironics.com
i
Table of ContentsChapter 1: Introduction .......................................................................................1-1
1.1 BiPAP Vision Ventilatory Support System Overview .............................................. 1-21.2 Service Notice ................................................................................................................. 1-31.3 Technical Support .......................................................................................................... 1-3
Chapter 2: Warnings, Cautions, and Notes ....................................................2-12.1 Warnings .......................................................................................................................... 2-22.2 Cautions ........................................................................................................................... 2-32.3 Notes ................................................................................................................................ 2-4
Chapter 3: Description and Theory of Operation ........................................3-13.1 BiPAP Vision System ..................................................................................................... 3-23.2 Power Supply Subsystem (PSS) ................................................................................... 3-63.3 Main Control (MC) ........................................................................................................ 3-83.4 Pressure Control (PC) .................................................................................................... 3-93.5 Display Control (DC) ................................................................................................... 3-113.6 Airflow Module (AFM) ............................................................................................... 3-143.7 Oxygen Module (OM) ................................................................................................. 3-163.8 Description of Ventilator Modes ................................................................................ 3-173.9 Nurse Call / Remote Alarm ....................................................................................... 3-193.10 Patient Disconnect Alarm Description ...................................................................... 3-21
Chapter 4: Specifications and Control Ranges ..............................................4-14.1 Specifications .................................................................................................................. 4-24.2 Control Ranges and Increments ................................................................................... 4-5
Chapter 5: Routine Maintenance ......................................................................5-15.1 Cleaning ........................................................................................................................... 5-25.2 Replacing the Inlet Filter ............................................................................................... 5-35.3 Cleaning / Replacing the Nylon Mesh Inlet Filter ................................................... 5-45.4 Replacing the Oxygen Regulator Filter ...................................................................... 5-65.5 Changing the System Fuses .......................................................................................... 5-85.6 Voltage and Fuse Selection ......................................................................................... 5-105.7 Power Cord Inspection ................................................................................................ 5-105.8 Internal Alarm Battery ................................................................................................. 5-115.9 Preventive Maintenance Schedule ............................................................................ 5-14
Chapter 6: Troubleshooting ................................................................................6-16.1 Overview ......................................................................................................................... 6-26.2 Description of System Alarms ...................................................................................... 6-56.3 Alarm Indicators ............................................................................................................ 6-76.4 Troubleshooting ............................................................................................................. 6-86.5 Error Codes ................................................................................................................... 6-126.6 Vent Inop Errors ........................................................................................................... 6-14
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Chapter 7: Repair and Replacement ................................................................7-17.1 Contact Information ....................................................................................................... 7-27.2 Exploded View ............................................................................................................... 7-37.3 BiPAP Vision Repair Kits ............................................................................................. 7-57.4 Mobile Stand II & III Repair Parts .............................................................................. 7-107.5 Replacement Identification Photos ........................................................................... 7-11
7.6 Touch Pad Replacement Instructions ........................................................................ 7-59Chapter 8: Testing and Calibration ..................................................................8-1
8.1 Overview ........................................................................................................................... 8-28.2 Recommended Testing after Part(s) Replacement .................................................... 8-38.3 Exhalation Port Test ....................................................................................................... 8-58.4 Total Operating Hours Transfer Procedure ............................................................... 8-88.5 Blower / Valve Calibration Procedure ..................................................................... 8-108.6 Performance Verification ............................................................................................. 8-128.7 Run-In Cycle Procedure .............................................................................................. 8-168.8 System Final Test .......................................................................................................... 8-188.9 PC/Laptop Set-up Procedure .................................................................................... 8-378.10 Test Cable Usage Definitions ..................................................................................... 8-408.11 Oxygen Flow Module Test ......................................................................................... 8-41
Chapter 9: Option Instructions ..........................................................................9-19.1 PAV/T Mode Installation or EPROM Upgrade ........................................................ 9-2
9.2 Oxygen Baffle Installation Instructions ....................................................................... 9-6Chapter 10: Summary of Upgrades for Repairs of Vision units with Serial Numbers 100500 to 106000......................................................... 10-1 10.1 Summary of upgrades for repairs of Vision units w/ serial numbers
100500 to 106000 ........................................................................................................... 10-2 10.2 Repair Kits No Longer Manufactured ..................................................................... 10-5 10.3 Installation/Upgrade Instructions for Repair Parts ............................................... 10-6Appendix A: Tools and Equipment ................................................................ A-1
A.1 Service Tools and Supplies .......................................................................................... A-2A.2 Acceptable Test Equipment ......................................................................................... A-3A.3 TSI, Inc. Certifier Test System .................................................................................. A-6
Appendix B: Schematics .................................................................................... B-1B.1 Schematic Statement .................................................................................................... B-2B.2 Main Control (MC) ...................................................................................................... B-3B.3 Display Control (DC) .................................................................................................. B-9B.4 Pressure Control (PC) ................................................................................................ B-20B.5 Air Flow Module (AFM) ............................................................................................ B-25B.6 Oxygen Module (OM) ................................................................................................ B-26B.7 Power Supply ............................................................................................................. B-27
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Chapter 1: Introduction 1-1
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Chapter 1: Introduction
1.1 BiPAP Vision Ventilatory Support System Overview .......... 1-2
1.2 Service Notice .............................................................................. 1-3
1.3 Technical Support ....................................................................... 1-3
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Chapter 1: Introduction1-2
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Chapter 1: Introduction
1.1 BiPAP® Vision™ Ventilatory Support System OverviewThe BiPAP Vision Ventilatory Support System (BiPAP Vision), shown in Figure 1-1, is a microprocessor-con-trolled, positive pressure ventilatory assist system. The BiPAP Vision incorporates a user interface with multi-function keys, real time graphic displays, and integral patient and system alarms.
The BiPAP Vision features a centrifugal blower to generate airflow, as well as hardware and software platformsthat can be upgraded with an oxygen module and additional patient alarms. The system operates in the Con-tinuous Positive Airway Pressure (CPAP), Pressure Support (S/T), and optional Proportional Assist Ventila-tion/Timed (PAV/T) modes.
The BiPAP Vision contains a variety of integrated safety and self-diagnostic features. All system functions arechecked at start-up and during operation. Errors are reported by visual and/or audible indicators.
Pressure regulation is achieved by monitoring proximal airway pressure and adjusting flows accordingly toensure that the proximal pressure equals the set pressure.
MODE: S/T MONITORING
IPAP
15cm H
2O
cm H2O
EPAP
6
Rate
Options
12BPM
%O2
55%
VT 1000 ml
PIP 15 cm H2O
MinVent 14 L/min
PS = 9 cm H2O
P (cm H2O)
Vol (ml)
Flow (L/min)
Figure 1-1 The BiPAP Vision Ventilator
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1.2 Service NoticeThis service manual was prepared by Respironics primarily for use by qualified techniciansrequired to service the BiPAP Vision.
1.3 Technical SupportRespironics is committed to customer satisfaction, and may be contacted with any questions or for technicalsupport at the following numbers:
U.S. and Canada
Phone: 1-800-345-6443Fax: 1-800-866-0245
International
Phone: 1-724-387-4000Fax: 1-724-387-5012
E-Mail [email protected]
Visit Respironics Home Page on the World Wide Web at:http://www.respironics.com
BiPAP Vision Service Manual
Chapter 2: Warnings, Cautions, and Notes 2-1
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Chapter 2: Warnings, Cautions, andNotes
2.1 Warnings ........................................................................................ 2-2
2.2 Cautions ......................................................................................... 2-3
2.3 Notes .............................................................................................. 2-4
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Chapter 2: Warnings, Cautions, and Notes
WARNING: Indicates the possibility of injury.
CAUTION: Indicates the possibility of damage to the device.
NOTE: Places emphasis on an operating or procedural characteristic.
2.1 WARNINGS
2.1.1 Safety
• Do not use the BiPAP Vision in the presence of a flammable anesthetic mixture withair, oxygen, or nitrous oxide.
• Oxygen supports combustion. Do not use oxygen while smoking or in the presence ofan open flame.
• When using the optional oxygen module, the BiPAP Vision does not provide an oxygensensor to monitor oxygen concentrations delivered to the patient circuit. Therefore, theuse of oxygen with the BiPAP Vision should be monitored through oximetry.
NOTE: Refer to the Clinical Manual for guidelines on Applications and Operation.
2.1.2 Operational
• If the “Ventilator Inoperable” indicator illuminates, refer to Chapter 6 of this manual fortroubleshooting guidelines.
• Never attach oxygen tubing or any positive pressure source to the pressure port on thefront panel of the BiPAP Vision.
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2.1.3 Service
CAUTION: Electronic components used in this device are subject to damage from staticelectricity. Repairs made to this device must be performed only in an antistatic,ESD-protected environment.
• Do not attempt to make connection to the diagnostic RS232 connector on the back panel ofthe BiPAP Vision to obtain repair information while the unit is operating on a patient.
• To assure the safety of the service technician and specified performance of the device,Respironics recommends that only qualified technicians perform repairs to the BiPAPVision. Contact Respironics Technical Service for service training and authorizationinformation.
• High voltages are present inside this device. To avoid electrical shock, disconnect theelectrical supply before attempting any repairs on the device.
• For continued protection against risk of fire, replace fuses with those of the same typeand rating only.
2.1.4 Cleaning
• To avoid electrical shock, unplug the BiPAP Vision unit before cleaning it.
2.2 CAUTIONS
• While cleaning the unit, do not allow any liquid to enter the cabinet or the inlet filter.
• Care should be taken to avoid exposing the BiPAP Vision to operating, storage, andtransport temperatures near the extremes specified in Chapter 4. If exposed to suchtemperatures, allow the unit to cool or warm to room temperature before turning it on.
• The unit must be positioned on its base for proper operation.
• Always use an inlet filter when the BiPAP Vision is in use.
• If using the oxygen module, do not exceed 100 psig oxygen supply pressure.
Warnings (Continued)
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2.3 NOTES• This device contains a rechargeable nickel-cadmium (NiCAD) battery which is used by
the alarms in the event of a power failure.
• Refer to the BiPAP Vision Clinical Manual for a complete list of operational Warnings,Cautions, and Notes.
Additional WARNINGS, CAUTIONS, and NOTES are located throughout this manual.
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Chapter 3: Description and Theory of Operation 3-1
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Chapter 3: Description and Theory ofOperation
3.1 BiPAP Vision Ventilatory Support System ............................... 3-2
3.2 Power Supply Subsystem (PSS) ................................................ 3-6
3.3 Main Control (MC)...................................................................... 3-8
3.4 Pressure Control (PC) ................................................................. 3-9
3.5 Display Control (DC) ................................................................ 3-11
3.6 Airflow Module (AFM) ............................................................ 3-14
3.7 Oxygen Module (OM) .............................................................. 3-16
3.8 Description of Ventilator Modes ............................................. 3-17
3.9 Nurse Call / Remote Alarm .................................................... 3-19
3.10 Patient Disconnect Alarm ........................................................ 3-21
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Chapter 3: Description and Theory of Operation
3.1 BiPAP Vision Ventilatory Support SystemThe BiPAP Vision is a microprocessor-controlled, positive pressure ventilatory assist system. Thesystem’s integral air intake filter draws in ambient air which is then pressurized by the system’s centrifu-gal blower assembly. The In-Line Flow Restrictor (ILFR) valve and Pressure Regulation Valve (PRV),which are both located in the blower discharge airway, regulate total flow and pressure at the blowerdischarge system. An oxygen module can be installed to add a controlled source of supplemental oxygen,up to 100%, to the patient.
The Pressure Control (PC) board continuously monitors the readings from the Airflow Module (AFM) oftotal gas flow, temperature, generated pressure, and patient circuit pressure to ensure prescribed therapyto the patient. The PC board transmits process data to the Main Control (MC) board which then providesoverall control of the BiPAP Vision, including conveying instructions to the PC board regarding requiredvalve stem position and blower speed.
The unique design and operation of the ventilator makes it especially suited for mask applications.Designed with the BiPAP Auto-Trak SensitivityTM feature that automatically adjusts to changing circuitconditions, the ventilator is capable of ensuring optimum patient-ventilator synchronicity despite changesin breathing patterns and circuit leaks. (Refer to the BiPAP Vision Clinical Manual.)
A liquid crystal display (LCD) screen is mounted on the front enclosure of the BiPAP Vision. The LCDand the Display Control (DC) board provide the primary user interface with the ventilator, including thevisual presentation of data, control features, and visual and audible presentation of alarm conditions. Theuser interacts with the ventilator through the touch pad and rotation of the rotary encoder while observ-ing the results of this input on the display. The information provided on the display varies depending onthe state of the ventilator and / or the operations being performed.
The BiPAP Vision incorporates a number of safety features and self-diagnostic systems. System internalfunctions are checked automatically at start-up, and periodically throughout normal operation. Anaudible and visual alarm announces failures of principal subsystems. Integrated patient alarms are alsoprovided and are announced on a visual message display area as well as with an audible tone.
The following sections of this chapter describe in more detail the major subsystems and components thatmake up the BiPAP Vision and its basic theory of operation.
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Function
PSS The Power Supply Subsystem (PSS) provides DC power to the BiPAP Visionfrom an AC source.
MC The Main Control (MC) board or Main Control Subsystem (MCS) performs all control,or data acquisition, and calculations required for the user-selected parameters. In addition,MCS the MC performs the start-up test and reports all errors.
PC The Pressure Control (PC) board or Pressure Airflow Subsystem (PAS) controls the bloweror and valves to generate and regulate the system pressure. The PAS senses the outletPAS pressure and the patient pressure and regulates the outlet pressure to the patient circuit.
DC Through the touch pad, the Display Control (DC) board or Display/Controlor Subsystem (D/CS) evaluates user inputs and passes valid parameters to the MC. The DCD/CS receives display data from the MC. The DC also has its own internal functions; the
results of which are reported to the MC.
AFM The Airflow Module (AFM), including the mass airflow sensor in the airstream,provides an airflow measurement interface to the PC, allowing the PC tomeasure total flow, temperature, and system pressure.
ILFR The In-Line Flow Restrictor (ILFR) valve assembly regulates the total flowfrom the blower discharge.
PRV The Pressure Regulation Valve (PRV) assembly is opened during exhalation toallow the patient flow to be exhausted.
OM The Oxygen Module (OM) subassembly regulates and proportions the oxygen releasedinto the air from the blower according to the oxygen concentration level set on theparameters screen.
BiPAP Vision Ventilatory Support System (Continued)
Subsystem
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3.2 Power Supply Subsystem (PSS)The PSS supplies the Main Control (MC), Pressure Control (PC), and the Display Control (DC) with theproper DC supply voltage. Safety features designed into the circuitry include an overvoltage disconnect,low voltage supply detect, and line loss detect. Other features include “power-on” indicator voltage,circulation fan power, and an On/Off switch connection.
Figure 3-2 PSS Block Diagram
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3.2.1 Input Range
The BiPAP Vision can operate with an AC input of 100, 120, 230, or 240 VAC (±10%) depending on themodel.
3.2.2 DC Supply
The output DC supply is fused at 30 amps and delivers between 20.6 VDC and 35 VDC with a maximumripple of 1 vpp (peak-to-peak voltage) to the MC, PC, and DC.
3.2.3 Overvoltage Disconnect
The overvoltage disconnect is used to remove the DC supply output when it exceeds 36 VDC and recon-nects it when the level returns to an acceptable value.
3.2.4 AC Fail
The MC module monitors the level of DC supply voltage and the AC voltage output from the transformersupply winding to determine if an AC fail condition exists.
Low DC supply detect – If the DC supply voltage drops to 19.38 VDC or lower (nominal), an AC failcondition will be triggered.
Line loss detect – The AC voltage output from the transformer supply winding is monitored for a loss-of-cycle condition. Both legs of the winding are input to the monitoring circuitry. Whenever AC is lost, theAC fail signal is activated.
3.2.5 Outputs
The PSS module also includes the following:
a. Front panel “power-on” indicator voltage (J5)
b. Circulation fan power (J4)
c. On / Off switch (part of J2)
d. Circulation fan current sense information to (J12) on the PC subsystem.
Power Supply Subsystem (PSS) (Continued)
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3.3 Main Control Subsystem (MC)The MC is microcontroller-based and provides overall system control and supervision by monitoring theactivity of all the other system modules and providing commands to these modules based on user andsystem input. The MC also acts as the bus controller for all subsystem communications using theIntermodule Communications Bus (ICB).
Figure 3-3MC Block Diagram
* For S/N units >106K
Nurse Call /Remote Alarm * J5
J6
4
DCS RX / TX
PAS RX / TX
*
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3.4 Pressure Control Subsystem (PC)The PC functions through a microcontroller to:
a. Communicate with the Main Controller Subsystem (MC)
b. Communicate to a terminal / PC for diagnostics
c. Acquire sensor data through an Analog-to-Digital Converters (ADC, A / D)
d. Control valves and the blower motor through a Digital-to-Analog Converter (DAC)
e. Respond to or invoke an error signal
Figure 3-4 PC Block Diagram
* For Units Serial Number <106K
PC
J15*or *
*
**
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3.4.1 Microcontroller Interface
Programmable Array Logic (PAL) memory device decodes the chip selects in such a way that the pro-gram code is retrieved from the EEPROM and data is retrieved from the RAM. An additional PALprovides the interface for the Intermodule Communications Bus (ICB). The microprocessor monitors:oxygen and gas temperatures; Airflow Module (AFM) and Oxygen Module (OM) detection; In-Line FlowRestrictor (ILFR), Pressure Regulation Valve (PRV), and oxygen valve DAC control voltage; blower DACcontrol voltage; and power supply and reference voltages.
3.4.2 Blower Motor Drive
The complete motor controller includes closed loop speed control via analog circuitry. When the desiredspeed and actual speed are known by the processor, the speed is adjusted by increasing or decreasing theDAC converter output to achieve proper pressure and flow.
3.4.3 Pressure Regulation Valve (PRV) and In-Line Flow Restrictor(ILFR) Drives
The valve drives have closed loop control via the microprocessor. The microprocessor reads sevenpressure, flow, and temperature sensors through the PC hardware, and receives prescription parametersfrom the MC. The microprocessor then adjusts analog DAC voltages to control the PRV and ILFR valvesas required to meet the prescription.
3.4.4 Pressure Sensors
The PC module has two dual pressure sensors (MT1 and MT2) and a single sensor (MT3). They measurepatient pressure, unit outlet pressure, and barometric pressure. These sensors are subject to calibrationwith their calculated slope and intercept values stored in the on-board EEPROM. MT3 is a backup outletpressure sensor that provides a redundant check of the primary outlet sensor located on the AFM.
NOTE: Calibration is factory programmed and field adjustment is not required.
3.4.5 Error Line Control (ELC) Circuit
The ELC circuit is designed to simply detect a failure from, or signal a failure to, the MC and DisplayControl (DC) modules. If the ELC line activates, only a power On / Off of the ventilator can clear thislatched circuit state.
3.4.6 Diagnostics Connector
The diagnostic connector (J3) interfaces with the microprocessor to view PC functions and system errorson units from serial number 100500 to 105999, unless upgraded. For units greater than this, the diagnos-tic connector is on the rear of the unit.
Pressure Control Subsystem (PC) (Continued)
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3.5 Display Control Subsystem (DC)The DC provides a means of displaying the operating mode, measured and calculated operating param-eters, parameter setpoints, alarm limits, real-time graphics, and general status information. The DC alsoprovides the necessary user interface controls to modify the operating mode, parameter set points, alarmlimits, and graphical scales; and to reset or silence the audible alarm, and freeze or unfreeze graphics.The displays and controls are described in more detail in the following subsections.
Figure 3-5 DC Block Diagram
* For Units Serial Number < 106K
or
or
*
*
*
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3.5.1 DC/DC Converter
The DC/DC converter reduces the +24 VDC bulk supply to a +5 VDC logic level. (S/N <106K)
3.5.2 Display Backlight and Contrast Adjustment
A serial 8-bit D/A converter provides two, 0 to +5 VDC which originate in the MCU for these controls.
3.5.3 Display Voltage DC/DC Converter
This adjustable negative voltage converter reduces the level of bulk supply voltage needed to operate theLiquid Crystal Display (LCD) contrast control.
3.5.4 Cold Cathode Fluorescent Tube (CCFT) Inverter
The DC design has a DC to AC inverter that typically provides 390 VAC to the fluorescent tube in thedisplay through (J2). The current varies to adjust the brightness of the fluorescent tube.
3.5.5 Reference Voltage Checks
This circuit compares reference voltages to determine if they are at the appropriate level.
3.5.6 Power Failure Alarm Battery Enable
This control detects a power failure from the DC supply.
3.5.7 Alarm Battery Voltage Cutout/Check
The battery voltage cutout /check monitors the battery voltage level and cuts it out if it drops to a level ofapproximately 3VDC.
3.5.8 Backup Battery/Charger
The DC contains a 3.6 V nickel cadmium rechargeable battery that operates the audible and visual alarmindicators for at least 20 minutes, when fully charged, when the Error Line Control (ELC) is active, andthe DC supply has been removed. The battery output is compared to a reference voltage and the batteryis recharged as required through a charging circuit. If necessary, refer to page 5-12 to recharge thebattery.
3.5.9 Check Ventilator Light Emitting Diode (LED) Enable CurrentCheck
An internal test is performed to verify that the Check Ventilator LED current is acceptable.
3.5.10 Vent Inop LED Current Check
An internal test is performed to verify the Ventilator Inoperative LED current is acceptable.
3.5.11 Error Line Control (ELC) Circuits
The DC contains redundant error signaling circuitry to communicate error conditions among the sub-systems. The circuitry’s redundant and diverse nature minimizes the chance of communication failures.
Display Control (DC) (Continued)
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3.5.12 Error LED
The error LED indicates that an error condition was detected, and it illuminates to make unit diagnosiseasier.
3.5.13 Diagnostic Interface
The diagnostic connector interface (J5) interfaces with the MCU to provide a means for the DC to down-load diagnostic data to a terminal or PC.
3.5.14 EEPROM
A serial EEPROM stores the setpoints for the backlighting and contrast and also for the appropriatediagnostic data.
3.5.15 LCD Controller
The DC circuit contains an LCD controller that interfaces with the display.
3.5.16 Debouncing / Keypad Matrix
The matrix keys are debounced and then the microprocessor scans the matrix to determine what key wasdepressed.
3.5.17 Rotary Encoder Control
The rotary encoder control circuit detects relative position, direction, and speed of the rotary encoder, allwithin one detent of movement.
3.5.18 Audible Alarm Activation
The audible alarm is activated by either an input from the ELC, the power fail circuitry, or the test alarmsignal from the MCU. It will also occur when the wrong key has been depressed, an adjustable parameterhas reached its limit, or the error signal has been activated.
3.5.19 Audible Alarm Current Check
An internal test is performed to verify the audible alarm current is acceptable.
3.5.20 “Power-on“ in Safe State
The DC contains circuitry that causes the hardware to “power-on” in a safe state; which is when thebacklight is off, the display is off, and the Intermodule Communications Bus (ICB) is terminated. Whenthe MCU determines that no Vent Inop error exists, it lets the unit resume operation under normaloperating conditions.
3.5.21 Watchdog and Low Voltage Reset
The watchdog function has to be periodically reset by the microprocessor if a time-out period has beenexceeded. This function is designed to reset the processor if the software gets lost. When a low logic levelis detected, the ELC will be activated resulting in a system shutdown.
Display / Control Subsystem (D / CS) (Continued)
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3.6 Airflow Module (AFM)The AFM is a submodule of the Pressure Control (PC). The AFM receives power from the PC and pro-vides the following analog signals to the PAS:
a. Gas flow indication
b. Pressure indication
c. Temperature indication
To provide indications accurate enough for system requirements, the AFM must be calibrated. Calibra-tion data is stored in a nonvolatile memory that is part of the AFM. The flow, pressure, and temperatureindications are for the ventilator gas stream flowing through a “flow body” attached to the AFM circuitboard.
3.6.1 Flow Body
The flow body, with laminar flow element, is added to the ventilator gas stream, creating a small pressuredifferential to short a fraction of the flow through the AFM sensor. Inlet, outlet, and pressure ports arepart of the flow body for tubing attachment to the AFM electronic sensors. Also, a hole is molded into theflow body to position the temperature sensor. The body has molded feet for attaching it to the AFMcircuit board assembly.
Figure 3-6 AFM Block Diagram
And/Or Oxygen Supply
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3.6.2 Analog Reference
The PC provides the AFM with power in the form of +12 VDC, –12 VDC, analog ground, +5 VDC, anddigital ground. An analog voltage reference supply is derived from the +12 VDC to power the pressureand flow sensors so their bridge outputs can be factory calibrated.
3.6.3 Flow Indication
Total gas flow indication is provided by MT1. It is then amplified by an instrumentation amplifier, low-pass filtered, and sent to the PC board for conversion.
3.6.4 Pressure Indication
MT2, a precision compensated pressure sensor, provides unit outlet pressure indication. The sensor isfollowed by a low-pass filter and a differential amplifier, and then sent to the PC board for conversion.
3.6.5 Temperature Measurement
The temperature is measured using a sensor inserted into a molded hole in the flow body. The BiPAPVision requires temperature indication to correct air density and detect an undesirable temperature rise inthe patient circuit.
3.6.6 Calibration
A data acquisition system, operating on a personal computer, is the control platform for AFM calibrationof temperature, pressure, and flow. Correction factors are derived and stored in the AFM module in anEEPROM, with calibration accomplished by balancing the flow transducer bridge with an EEPOT. ThePAS uses temperature, pressure, and flow to correct for actual operating conditions. Once calibrated, theAFM is interchangeable with other AFM assemblies.
NOTE: Calibration is factory programmed only.
3.6.7 Module Detection
The PC must know the AFM is connected, since it is required for normal operation of the ventilator. Anextra line pulls a PC microcontroller line near zero volts. If the line is above two volts, the AFM is notconnected, and the PC will transition to the error state.
Airflow Module (AFM) (Continued)
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Figure 3-7OM Block Diagram
PC
3.7 Oxygen Module (OM)The OM is an optional submodule of the Pressure Control (PC). It receives power from the PC andprovides an analog signal to the PC for oxygen flow indication. To provide indications accurate enoughfor system requirements, the OM must be calibrated. Calibration data is stored in a nonvolatile memorythat is part of the OM. The flow indication is for the ventilator pure oxygen stream flowing through a flowbody attached to the OM circuit board.
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3.8 Description of Ventilator ModesThe BiPAP Vision comes standard with two operating modes: Continuous Positive Airway Pressure(CPAP) and Spontaneous/Timed (S/T). A third, optional, Proportional Assist Ventilation/Timed (PAV/T) is also available.
3.8.1 Continuous Positive Airway Pressure (CPAP)
CPAP provides a constant pressure level delivered over the complete range of the patient’s spontaneousbreathing cycle. Pressure is controlled and maintained. Flow is available to meet changing patientdemands and automatically compensate for leaks. The mode delivers the prescribed level of pressurethat has been set with the CPAP control (Range: 4 to 20 cm H2O).
3.8.2 Spontaneous/Timed (S/T)
The S/T mode provides either pressure support during spontaneous breaths or time-triggered, pressure-limited, time-cycled machine breaths.
Spontaneous Breaths
Two pressure levels are set: an EPAP level (range 4 to 20 cm H2O) to establish a baseline pressure and anIPAP level (range 4 to 40 cm H2O) that determines the amount of pressure support delivered with eachbreath (PS = IPAP– EPAP). During the inspiratory phase, the BiPAP Vision responds as necessary tosatisfy the patient’s flow requirements while maintaining the preset IPAP pressure. Under these condi-tions, the patient is active in determining inspiratory time and tidal volume. The delivered tidal volumewill be dependent upon the pressure differential between the IPAP and EPAP levels, patient effort, andthe combined resistance and compliance of the circuit and the patient. If the patient does not activelyparticipate, the BiPAP Vision responds appropriately.
Timed Breaths
The S/T mode can also provide a time-triggered, pressure-limited, time-cycled machine breath, when thespontaneous respiratory rate drops below the Rate control setting. If the ventilator does not detect aspontaneous trigger within the interval determined by the Rate control setting, it will activate a time-triggered machine breath and deliver the IPAP level. Machine breaths are not synchronized with patienteffort, and once triggered to IPAP, the balance of the cycle is determined by the Timed Insp. Controlsetting. A maximum Timed Inspiratory setting of 3.0 seconds can be set, as long as the I:E Ratio does notexceed 1:1, as determined by the Rate setting. For example, see Figure 3-12. If the Rate control is set at 10BPM, the total respiratory cycle is six seconds. If a spontaneous trigger occurs before the six-second cycletime has elapsed, a spontaneously-triggered, pressure support breath occurs, a timed trigger will notoccur, and the timer is reset for a new six second interval. If a six second interval passes without aspontaneous trigger, a timed trigger will be initiated and IPAP will be delivered for the duration of timeset by the Timed Inspiration setting.
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Figure 3-12Timed Breath Example
Description of Ventilator Modes (Continued)
3.8.3 Proportional Assist Ventilation / Timed Mode (PAV/T)
For a detailed description of functioning of the Proportional Assist Ventilation/Timed (PAV/T) Mode,refer to the appropriate BiPAP Vision Clinical manual. This mode utilizes the design features of S/Tmode and is a software enhancement only.
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3.9 Nurse Call/Remote Alarm Feature Operation (for s/n unitsgreater than 106000 only)
The unit will activate a remote signal for system shutdowns, patient alarms, and Loss of AC Power condi-tions which inhibit therapy. Note that a Check Vent condition does not activate the nurse call signal. Thenurse call signal can be silenced via the Alarm Silence key for the same amount of time that the audiblealarm on the Vision is silenced (two minutes). The signal can also be cleared by selection of the AlarmReset key. The nurse call signal will automatically terminate when a patient alarm self-cancels.
The Nurse Call/Remote Alarm feature is meant to be a backup with the main Vision alarm system beingthe primary alarm/alert mechanism.
The Nurse Call or Remote Alarm signal is generated on the MC board and then can be connected to ahospital nursing station. This signal is opto-isolated and used to switch a relay to provide open or closedcontacts to the remote station circuit. The arrangement of the two jumpers (JP1 and JP2) on the MC deter-mine the output configuration that is utilized by a common connector on the rear panel of the Vision.
The Nurse Call Adapter (RI P/N 1014280) along with the Nurse Call Cable (RI P/N 1003742) can be usedto connect the Vision to a Nurse Call station.
The jumper configuration on the MC circuit board can be selected to meet requirements according to thefollowing table. Refer to the photo for jumper location.
Option JP1 JP2 No Alarm Output Alarm Option System Requiring1 2,3 2,3 51.1K Open Respironics Remote Alarm2 2,3 1,2 Closed Open Central Alarm System3 1,2 1,2 Open Closed Central Alarm System
NOTE: Option 2 is the original factory set configuration for S/N 106001 to 106368.Option 3 is the original factory set configuration for S/N 106369 and greater.
JP 2
JP1
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Nurse Call / Remote Alarm (Continued)
Details of option selections:
Option 1:
For use with Respironics Remote Alarm ( RI p/n 34003, or equivalent).
Option 2:
For use with alarm systems requiring NORMALLY OPEN contacts for an “alarm” condition and CLOSED contactsfor a “no alarm” condition.
Option 3:
For use with alarm systems requiring NORMALLY CLOSED contacts for an “alarm” condition and OPEN contactsfor a “no alarm” condition.
Caution: The Vision Nurse Call/Remote Alarm port shall be connected to nurse call systems that meet the relevant local safety standards. Secondly, the nurse call port shall be connected to a low voltage circuit (less or equal to 42.4V peak ac or 50V dc). The leakage currents from the low voltage circuit shall not cause the Vision leakage currents to exceed acceptable levels. Lastly, the rated output current of the low voltage circuit shall not exceed 1A.
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3.10 BiPAP Vision Patient Disconnect Alarm Description ofOperation
The patient disconnect alarm (“Disconnect”) is based on the flow limit control algorithm in the Vision. The mitiga-tion for the Disconnect alarm is to put the unit into flow limit control. This same action is done when the user selectsthe Standby key.
3.10.1 Detection
The unit determines that a patient is not connected to the circuit anymore based on flow for the given pressure. Thisis implemented via a look-up table, with a flow entry for every generated pressure. The range of flows is 95 to 180LPM, with 180 LPM being the low limit for any pressure above 9 cmH2O. If the unit detects flow greater than thethreshold at any given pressure for more than 10 seconds (3 seconds in for software earlier than 13.2), the unit putsitself into the Flow Limit Control state. In this state, the unit attempts to limit the flow coming out of the mask inorder to make putting the mask back on the patient easier and more comfortable for the patient.
Also, for safety concerns, the oxygen valve closes to discontinue oxygen delivery during this condition.
When the Standby key is selected by the user, the unit automatically enters the FLC state, regardless of the flow atthe time the Standby key is selected.
In order to limit the flow, the unit drops the pressure to 4 cmH2O. The algorithm was enhanced to work with the FullFace Mask a while ago. The Full Face Mask has a flap that will close the patient circuit and open the mask toatmosphere upon loss of flow and pressure. This flap must be kept in a position during FLC so that the patientcircuit is not occluded. This allows the unit to detect when the patient is reconnected. The enhancement to thealgorithm consists of the pressure being slowly increased to keep the flow at 160-170 LPM. The pressure level islimited to 10 cmH2O for software 11.2 and 11.3 (15 cmH2O for software 11.3a and higher), regardless of how muchflow is being generated. Therefore, the unit will either output 160-170 LPM at some pressure or will be limited tosome lesser flow at 10 cmH2O for software 11.2 and 11.3 (15 cmH2O for software 11.3a and higher).
3.10.2 Termination
There are two termination stages to FLC. During the first stage, as the pressure is being increased from 4 cmH2O toits maximum of 10 cmH2O for software 11.2 and 11.3 (15 cmH2O for software 11.3a and higher), FLC will beautomatically terminated if the unit detects negative flow (i.e., the patient breaths back into the unit). This pressureincrease takes about 10 – 12 seconds for software versions earlier than 13.2, depending on how soon the flow setpoint is reached. There have been two enhancements in software version 13.2 in this area. The first is that thepressure is increased faster (1 cmH2O per 40 ms instead of the previous ¼ cmH2O per 40 ms) to shorten the amountof time in stage one. The second change concerns the flow range processing. In software versions earlier than 13.2,when the pressure is dropped to 4 cmH2O and the flow is greater than the desired flow range (160-170 LPM), theflow limit algorithm attempts to decrement the pressure to get the flow into that desired range. In software version13.2, that was changed to immediately enter stage 2 under that condition.
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Once either the flow set point or the maximum pressure is reached, the unit will automatically terminateFLC for either the detection of negative flow or if flow varies from the current flow by more than 40 LPMin software versions prior to 13.2 and 20 LPM for software version 13.2. For instance, if the 160-170 LPMset point has been reached, the unit will terminate FLC if the flow drops below 120 LPM or goes above210 LPM in older software and 140-190 LPM in the new software.If the flow set point has not been reached, the current flow at 10 cmH2O for software 11.3 and 11.3 (15cmH2O for software 11.3a and higher) is used as the set point. For instance, if only 80 LPM can bereached at 10 cmH2O for software 11.3 and 11.3 (15 cmH2O for software 11.3a and higher), the thresholdsfor automatic termination of FLC will be 40 LPM and 120 LPM in older software and 60-100 LPM in newsoftware.
This allows FLC to be terminated without the patient necessarily breathing back into the machine but bythe simple act of refitting the mask to the patient.
The Standby condition, besides being terminated automatically by the above methods, can also bemanually terminated by reselecting the highlighted Standby soft key on the Monitoring screen.
When FLC is terminated during a “Disconnect” alarm period, the alarm is self-cancelled. That meansthat the audible component of the alarm is silenced but the visual component of the alarm remainsdisplayed on the screen. That can be cleared by selecting the Alarm Reset key.
Note: During FLC, the oxygen parameter setting reduces to 21%, regardless of the setting.
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Chapter 4: Specifications andControl Ranges
4.1 Specifications ............................................................................... 4-2
4.2 Control Ranges and Increments .............................................. 4-5
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Chapter 4: Specifications and Control Ranges
4.1 Specifications
ENVIRONMENTAL:
Temperature ....................................... Operating: 40° F to 104° F (4.4° C to 40° C)Transport / Storage: –4° F to 140°F (–20o C to 60o C)
Humidity ............................................ Storage and Operating: 0 to 95% Relative Humidity
PHYSICAL:
Dimensions ........................................ At the base: 16" (L) × 14 3/8" (W) × 10 5/8" (H)(40.6 cm x 36.5 cm x 27cm)
Weight ................................................ 34 lbs (15.4 kg)
ELECTRICAL:
AC Input Voltage (VAC) ................. 100/120/230/ 240 VACSingle Phase±10%
Fuses ................................................... 100 – 120 VAC ~ T 3.5 A, 5 × 20 mm, Time Lag (×2)(For serial no.’s 100500 and higher –Respironics Reorder # 1000749)
115 VAC ~ T 3.0 A, 250 V, ¼” × 1¼”(For serial no.’s 100499 and lower –Respironics Recorder # 582100)
220 VAC, 230 VAC and 240 VAC ~ T 1.6 A, 250 V, 5 × 20 mm(For all serial no.’s – Respironics Recorder # 1000750)
Power Consumption ........................ 300 VA max.
AC Current ........................................ 3.0 A maximum
AC Frequency .................................... 50/60 Hz
Class ................................................... Protection Against Electrical Shock: Class I
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Specifications (Continued)
Type .................................................... BFDegree of Protection Against Harmful Ingress of Water:Ordinary Equipment, IPX0
ElectromagneticCompatibility ..................................... The BiPAP Vision meets the requirements of IEC 601-1-2
Earth Resistance ................................ Less than 0.10 ohms
Earth Leakage Current ......................Normal Pole, No Earth, L2 ........ Less than 300 µAReverse Pole, No Earth, L2 ........ Less than 300 µAReverse Pole, No Earth, No L2 .. Less than 1000 µANormal Pole, No Earth, No L2 .. Less than 1000 µA
Insulation Resistance ........................ Greater than 2 megaohms
Noise Level ......................................... No specification is given because various test instruments, testprocedures, and unit operating conditions produce varyingresults.
Alarm Sound Level ........................... Between 70 and 85 dBA peak at a distance of 1 meter.
PRESSURE:
Output ................................................. 4 to 40 cm H2O
Dynamic Regulation .......................... ± 2 cm H2O at sinusoidal flow @ ± 100 L/min
Static Regulation ................................ ± 2 cm H2O from –60 to 120 L/min
Elevation .............................................. 0 to 5000 ft above sea level
CONTROL ACCURACY:
Timed Inspiration .............................. ± 0.2 sec of the set point
Rate ...................................................... ± 1 BPM of the set point
Oxygen Concentration ....................... The greater of ± 3% or ±10% of the set point
DISPLAY ACCURACY:
Pressure ............................................... ± 1 cm H2O
Volume ................................................ ± 10% (during stable conditions)
Flow ..................................................... ± 10% (during stable conditions)
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TRIGGER SENSITIVITY:(Refer to BiPAP Vision Clinical Manual Auto-Trak section for more details)
Spontaneous Trigger ......................... Shape TriggerVolume 6 cc above
Spontaneous Cycle ............................ Spontaneous Expiratory Threshold (SET)Shape CycleIPAP maximum of 3.0 secFlow Reversal
OXYGEN MODULE INLET:
Pressure Range .................................. 50 to 100 psig
Inlet Fitting ......................................... DISS male oxygen connector
INTERNAL BATTERIES:
Alarm Battery ..................................... NiCADLocation: D/C3.6 VDC, 110 mAhRechargeable (See Section 5.9.3 for details)(RI P/N 1012819)
Data Retention Battery Type: Lithium CellLocation: MCS+3 VDC, 300 mAhNot Rechargeable(RI P/N 1001988)
Data Retention Battery Type: Lithium Cell(for current MC Board ) Location: MCS
+3 VDC, 300 mAhNot Rechargeable(RI P/N 1006005)
Specifications (Continued)
Vleak
(for original MCS board)
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4.2 Control Ranges and Increments
NOTE: Refer to the applicable BiPAP Vision Clinical Manual for PAV/T information.
4.2.1 Parameters
4.2.2 Alarms (Adjustable)
Alarm Control ControlRange Increments
High Pressure 5 to 50 cm H20 1 cm H20
Low Pressure Disabled to 40 cm H20 1 cm H20
Low Pressure Delay 0 to 60 sec. 1 cm H20
Apnea Disabled; 20 to 40 sec. 4 set points;Disabled, 20, 30, 40 sec.
Low Minute Disabled to 99 L/min. 1 L/min.Ventilation*
High Rate* 4 to 120 BPM 1 BPM
Low Rate* 4 to 120 BPM 1 BPM
*With optional Alarm Module
*With optional Oxygen Module
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4.2.3 Display Ranges & Increments
Control Ranges and Increments (Continued)
PARAMETER DISPLAY DISPLAY RANGE RESOLUTION
IPAP 0 TO 50 CM H2O 1 CM H2O
EPAP 0 TO 50 CM H2O 1 CM H2O
CPAP 0 TO 50 CM H2O 1 CM H2O
RATE 0 TO 150 BPM 1 BPM
EXHALED TIDAL 0 TO 4000 ML 1 ML
VOLUME (VT)
MINUTE VENTILATION 0 TO 99 L /MIN 1 L / MIN
(MIN VENT)
TOTAL LEAK (TOT LEAK) 0 TO 300 L/MIN 1 L / MIN
PATIENT LEAK 0 TO 300 L /MIN 1 L /MIN
(PT. LEAK)
PEAK INSPIRATORY 0 TO 50 CM H2O 1 CM H2O
PRESSURE (PIP)
PERCENT OF PATIENT 0 TO 100% 1%TRIGGERED BREATHS
(PT.TRIG)
TI/TTOT 0 TO 100% 1%
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Chapter 5: Routine Maintenance
5.1 Cleaning the BiPAP Vision ....................................................... 5-2
5.2 Replacing the Inlet Filter ........................................................... 5-3
5.3 Cleaning / Replacing the Nylon Mesh Inlet Filter .............. 5-4
5.4 Replacing the Oxygen Regulator Filter ................................. 5-6
5.5 Changing the System Fuses ...................................................... 5-8
5.6 Voltage Selection ....................................................................... 5-10
5.7 Power Cord Inspection ............................................................5-10
5.8 Internal Alarm Battery ............................................................ 5-11
5.9 Preventive Maintenance Schedule ........................................ 5-14
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5.1 Cleaning the BiPAP Vision
CAUTION: Do not immerse the BiPAP Vision in water or allow any liquid to enter the cabinet orthe inlet filter.
NOTE: The following guidelines for cleaning refer to the BiPAP Vision only. Refer to theindividual instructions for cleaning accessories.
5.1.1 Cleaning the Front Panel
Clean the front panel as needed by wiping with water or 70% isopropyl alcohol only.
5.1.2 Cleaning the Enclosure
Clean the exterior of the enclosure as needed by wiping with any anti-bacterial agent.
CAUTION: Do not allow any liquid to enter the cabinet or the inlet filter.
NOTE: Do not clean the Auto-Trak sticker with anything except mild soap and water.
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5.2 Replacing the Inlet Filter
CAUTION: A dirty inlet filter may cause high operating temperatures, and may affect ventilatorperformance. Examine the inlet filter for integrity and cleanliness before each use, andas required during operation.
Step 1 Turn the BiPAP Vision OFF and unplug the electrical cord from the wall outlet and from theback of the unit.
Removing the Filter
Step 2 Remove the inlet filter cap by pinching the latch, then rotate the cap until the hinge isfree from its slot.
NOTE: The inlet filter is disposable. Do not attempt to clean the inlet filter. When the filter isdirty replace it with a new filter. Use only Respironics filters; see Chapter 7 forthe filter reorder number.
Installing the Filter
Step 3 Place the filter inside the cap, then reverse Step 2 to reinstall the filter cap.
NOTE: To clean any of the accessories, refer to each accessory’s instruction sheet.
Figure 5-1Removing the Filter Cap
(P/N 1003444)
(P/N 582101 x6)
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5.3 Cleaning/Replacing the Nylon Mesh Inlet Filter
CAUTION: A dirty nylon mesh inlet filter may cause high operating temperaturesand may affect ventilator performance.
Step 1 Turn the BiPAP Vision off and unplug the electrical cord from the wall outlet andfrom the back of the unit.
Step 2 Remove the filter cap and inlet filter. (See Section 5.2 for more detailed instructions onremoving the filter cap and inlet filter.)
Step 3 Using a medium Phillips screwdriver, remove the two screws that secure the nylon meshinlet filter to the filter enclosure. Remove the nylon mesh inlet filter.
NOTE: Depending on the condition of the nylon mesh inlet filter, it may be cleaned andreused. If the filter is in good shape, follow the cleaning instructions in Step 4. If thefilter must be replaced, proceed to Step 5.
NOTE: If the nylon mesh inlet filter is to be cleaned, care should be taken to protect theadhesive on the edges of the filter. If the adhesive is damaged, the filter may notcorrectly seal when reinstalled.
Figure 5-2Removing the Nylon Mesh Filter
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Step 4 Using a solution of mild soap and water, carefully clean then thoroughly rinse the nylonmesh inlet filter. Insure that the filter is completely dry before reinstalling it in the unit.
Step 5 If necessary, remove the protective backing from the nylon mesh inlet filter. Align the newcleaned nylon mesh inlet filter with the filter enclosure. Press the edges of the filter firmly inplace. Secure the filter to the filter enclosure using the two Phillips screws.
Cleaning / Replacing the Nylon Mesh Inlet Filter (Continued)
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5.4 Replacing the Oxygen Regulator Filter
CAUTION: A dirty Oxygen Regulator filter may reduce system performance. Examine the filterfor integrity and cleanliness before each use.
NOTE: Replace the filter as necessary to ensure normal operation.
Step 1 Position the BiPAP Vision so that the back is easily accessible.
Step 2 Disconnect the Oxygen Module (OM) input line.
Step 3 Firmly grasp the plastic body of the regulator bowl and rotate it counterclockwise toremove it. (Direction is referenced from the bottom of the unit.)
NOTE: The regulator bowl has a standard right-hand thread.
Step 4 Remove the original filter.
Figure 5-3Removing the OM Regulator Bowl
(shown is for original Oxygen Module)
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Step 5 Insert the new filter.
Step 6 If necessary, clean the regulator bowl with mild soap and water and dry completely.
Step 7 Put the regulator bowl in place and rotate it clockwise until securely tightened.
Step 8 Connect the oxygen input line to the OM.
Replacing the Oxygen Regulator Filter (Continued)
Figure 5-4Removing the OM Filter
(shown is for original Oxygen Module)
BiPAP Vision Oxygen Module Regulator Filter and Regulator Bowl Compatibility
Note: Refer to the information below for compatibility when ordering Oxygen bowl and filterreplacements.
Oxygen Module (OM) Manifold / Regulator Bowl For Oxygen Module S/N < 300000, use part number 582154
For Oxygen Module S/N > 299999, use part number 1007546*
Oxygen Module (OM) Manifold / Regulator Bowl filter (x5) For Oxygen Module S/N < 300000, use part
number 582153 For Oxygen Module S/N > 299999, use part
number 1007547*
* This part is also for the Oxygen Modules that do not have a serial number on the Oxygen Mod-ule cover.
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Step 3 Pry the fuse drawers loose and slide them out of the power entry module.
Step 4 Pull the fuses out of the fuse drawers.
5.5 Changing the System Fuses
WARNING: Unplug the BiPAP Vision before changing the fuses.
NOTE: This procedure applies to Vision S/N’s 100500 and greater.
Step 1 Unplug the AC power cord from the wall outlet and from the power entry module on therear of the BiPAP Vision.
Step 2 With a small, flat-blade screwdriver, gently pry open the fuse holder door from the top. Thedoor hinges downward.
Figure 5-5Opening the Fuse Door
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Figure 5-6Replacing the Fuses
Step 5 Replace both fuses.
Step 6 Place the new fuses in the fuse drawers and slide the fuse drawers back into the power entrymodule with the arrows on the front of the drawers pointing to the right.
Step 7 Select the proper operating voltage by removing the drum and reinserting it with thedesired voltage displayed.
NOTE: Use only Respironics approved fuses. See Section 5.6 for fuse part numbers.
Step 8 Swing the fuse drawer door shut and snap it into place.
Step 9 Plug the AC power cord into the BiPAP Vision and the wall outlet.
Changing the System Fuses / Operating Voltage Selection (Continued)
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5.6 Voltage and Fuse SelectionThe voltage selection is originally set at the factory. If you wish to use the BiPAP Vision with a differentoperating voltage, refer to Section 5.5.
NOTE 1: Vision S / N’s 100500 and greater:• For operating voltages of 100 and 120 VAC, use RI P/N 1000749 fuses.• For operating voltages of 230 and 240 VAC, use RI P/N 1000750 fuses.
NOTE 2: Visions S / N’s 100499 and less:• For operating voltage of 115 VAC, use RI P/N 582100 fuses.• For operating voltage of 220 and 240 VAC, use RI P/N 1000750 fuses.
5.7 Power Cord InspectionInspect the power cord and replace if damaged or shows signs of wear.
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5.8 Internal Alarm Battery
5.8.1 Battery Function
The BiPAP Vision contains an internal NiCAD battery located on the DC (P/N 1012819) to activate theVentilator Inoperative visual and audible alarm indicators if an error occurs. A fully charged battery canmaintain the audible alarm for up to 20 minutes.
5.8.2 Low Battery Condition
The NiCAD battery can lose its charge if the BiPAP Vision is not used for an extended time. In a typicalenvironment, a fully charged battery can be stored approximately six months before losing its charge, butthe discharge rate depends heavily on temperature.
NOTE: The BiPAP Vision internal alarm battery should be charged prior to use if it has beenstored for longer than three months.
If the battery voltage is too low to support the alarm indicators, the Check Ventilator visual (Eye icon) andaudible alarm indicators will activate. The time that the audible alarm operates may be short due to thelow voltage of the battery. The BiPAP Vision also generates error code 205.
To check the error code:
Step 1 Silence the audible alarm component by pressing the Alarm Reset key.The audible component will not sound again.
Step 2 Press the Monitoring hard key if you are not already in the Monitoring screen.
Step 3 Press the Options soft key.
Step 4 In the Options screen, press the Error soft key.Check vent error codes are displayed in the top line of the Options/Message area.
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5.8.3 Charging the Internal Battery
There are two methods used to recharge the NiCAD battery on the DCS circuit board that is used to sound theaudible alarm, fast charge and normal.
1. Fast Charge Method (Check Vent/Error 205 Being Displayed)
A fast charge will be initiated at first time initialization and when a low internal battery error is detected. Fast chargingis available when the unit is in the Setup Screen and when it is providing therapy (i.e., the unit can sit in the diagnos-tic mode and still fast charge). Fast charge time is 6 hours to sufficiently charge the battery to support the audiblealarm for 20 minutes.
If the unit is powered off during a fast charge sequence, the sequence will pick up where it left off when the unit ispowered back on unless a low battery error is detected during the start-up testing (i.e., the unit was off long enoughto discharge the battery). In that case, a new 6-hour fast charge sequence will be initiated. The functionality of theCheck Ventilator error 205 remains unchanged - the error code will be able to be cleared approximately 1 minute afterthe status indicates a good battery.
Note: If the status never indicates a good battery (i.e., the battery is actually bad and will not take a charge),the fast charge sequence will run continuously. The user will be able to detect this by not being able toclear the 205 error even after a full fast charge cycle.
Charging Process:
1. Remove the unit from patient use.2. Plug the unit into an AC source and start the unit. The Self Diagnostics will begin.3. Allow the unit to remain in the Exhalation Port/Language Screen.4. Or, allow the unit to be in therapy or Standby mode. Press the alarm reset to silence the audible alarm.5. Leave in one of these conditions for approximately 6 hours to fully charge the battery.
2. Normal Method (No Check Vent/Error 205)
If there is no Check Vent error 205, the charging circuit will continue to charge the battery on a regular basis while inthe Test Exhalation/Language screen or during therapy use. It will take approximately 24 hours to fully charge thebattery to support the audible alarm for up to twenty minutes.
Charging Process:
1. Remove the unit from patient use.2. Plug the unit into an AC source and start the unit. The Self Diagnostics will begin.3. Allow the unit to remain in the Exhalation Port/Language selection screen.4. Or, allow the unit to be in therapy or Standby mode.5. Leave in one of these conditions for approximately 24 hours to fully charge the battery.
Internal Alarm Battery Maintenance (Continued)
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Charging Verification:
1. A minimum of two hours is required to charge a fully discharged battery to a voltage at which the alarm willnot be activated. At this time, the unit can be operated and will continue to trickle charge the battery while it isin operation.
2. Press Monitoring to begin operation.3. Wait two minutes to determine if the Check Vent alarm activates with an error 205 in the Error Message screen.
If not, then the unit is ready for use.
CAUTION: Prolonged storage of the BiPAP Vision at high temperatures, above 80 ºF (27 ºC) canresult in premature battery failure. Failure to recharge a battery when it is being stored forlong periods will cause a loss of battery life, activate the Check Ventilator alarm, andgenerate error code 205.
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Model # ______________ Serial # ______________
Maintenance Item Verification Reference Service Interval Date
Record hours of Displayed on Options 1 Yearoperation Screen
Replace inlet filter Section 5.2 As required
Replace oxygen Section 5.4 As requiredregulator filter
Audible Alarm Visual, verify by activating 1 YearTest Alarms.
5.9.1 Vision Preventive Maintenance Schedule (Factory Recommended)
Section 5.7 As required
Cleaning Section 5.1 As required
Inspect PowerCord
5.9 Preventive Maintenance ScheduleThe Maintenance Schedule lists the items that are recommended to be periodically inspected or tested. Theservice interval may be decreased as internal protocol specifies. The user should be aware of any local ornational regulations that may deviate from the schedule as described below. Use the log to record the datesthe maintenance items are performed.
Tested by: ________________________________ Date: _______________
Run Blower Valve Section 8.5 Calibration
1 Year
Perform “System Section 8.8 Final Test”
1 Year
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-1
Chapter 6: Troubleshooting
6.1 Overview ..................................................................................... 6-2
6.2 Description of System Alarms ................................................. 6-5
6.3 Alarm Indicators ........................................................................ 6-7
6.4 Troubleshooting .......................................................................... 6-8
6.5 Check Vent Error Codes .......................................................... 6-12
6.6 Vent Inop Errors ........................................................................6-14
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-2
1045049
Chapter 6: Troubleshooting
6.1 Overview
Purpose
This chapter outlines a general procedure for troubleshooting the BiPAP Vision. Problems shall be investi-gated to the major component or subassembly as indicated on the specific error code charts found in thischapter.
Process
Step 1 If a Patient Alarm activates and it is not possible to eliminate it, refer to the AlarmDescriptions beginning on page 6-8 for detailed descriptions, possible causes, and correctiveaction.
Step 2 If the Check Ventilator icon illuminates along with the audible alarm, refer to the CheckVent Error Flow Chart on page 6-12 for the recommended troubleshooting sequence tofollow. Refer to the “Check Vent” Error Codes chart on page 6-13 for descriptions andpossible corrective actions.
Step 3 If the Ventilator Inoperative icon illuminates along with the audible alarm, refer to the VentInop Errors Flow Charts on pages 6-14 and 6-15 for the recommended troubleshooting
sequence to follow. Refer to the Common System (page 6-16), PC Specific (page 6-18), MCSpecific (page 6-22), and the DC Specific (page 6-24) Error Codes Charts for descriptions andpossible corrective actions.
Step 4 Use the chart on page 6-3 to diagnose Common System Level Problems.
Step 5 Use the “Error Codes Chart Abbreviation Definitions” on pages 6-25 and 6-26 for thedefinition of terms used throughout all of the Error Code Charts.
Step 6 Follow the PC/Laptop Setup Procedures in section 8.9 for the suggested method to check the error code for each subsystem. The procedure includes PC/Laptop setup guidelines.
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-3
Com
mon
Sys
tem
Lev
el P
robl
ems
Cor
rect
ive
Act
ion
Insp
ect p
ower
cor
d in
sert
ion
or d
amag
e, re
plac
e.In
spec
t fus
es, r
epla
ce if
blo
wn.
Rep
lace
PSS
.C
ontin
uity
test
sw
itch,
repl
ace.
Rep
lace
AC
Inle
t.R
epla
ce tr
ansf
orm
er.
Ver
ify
prop
er in
put v
olta
ge s
ettin
g.In
spec
t pow
er c
ord
inse
rtio
n or
dam
age,
repl
ace.
Con
tinui
ty te
st, r
epla
ce.
Rem
ove
top
cove
r, ve
rify
all
wir
ing
conn
ectio
ns a
repr
oper
ly in
sert
ed.
Rep
lace
the
LC
D.
Rep
lace
the
DC
.
Rep
lace
if fa
iled.
Dis
conn
ect t
rans
form
er fr
om th
e PS
S, if
fuse
s st
illfa
iling
, rep
lace
the
tran
sfor
mer
.
If th
e fu
ses
and
tran
sfor
mer
are
ope
ratio
nal,
repl
ace
the
PS
S.
Pos
sibl
e C
ause
Pow
er c
ord
Fuse
sP
SS
Mai
n po
wer
sw
itch
AC
Inl
etT
rans
form
er
Pow
er c
ord
Mai
n po
wer
sw
itch
Loo
se c
onne
ctio
ns
LC
D
DC
Fuse
s
Tra
nsfo
rmer
PS
S
Sym
ptom
The
uni
t will
not
pow
er o
n.
Inte
rmitt
ent O
n / O
ff c
ondi
tion
.M
ain
Pow
er in
dica
tor
blin
kssp
orad
ical
ly.
Dis
play
bla
nk, p
ower
On.
Fuse
s fa
iling
.
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-4
1045049
Out
let a
ir te
mpe
ratu
re to
ow
arm
.
Noi
se
Touc
h pa
d no
t res
pond
ing
tose
lect
ion.
Rot
ary
enco
der
does
not
adj
ust
sele
ctio
n.
Ven
tilat
or I
nope
rativ
e ic
on(w
renc
h) il
lum
inat
ed, a
nd th
eau
dibl
e al
arm
.
Che
ck V
enti
lato
r ic
on (
eye)
illum
inat
ed, a
nd th
e au
dibl
eal
arm
.
Hig
h am
bien
t tem
pera
ture
Inle
t fil
ter
Blo
wer
Tra
nsfo
rmer
PC PC ILFR
PRV
Blo
wer
Touc
h pa
dD
C
Rot
ary
enco
der
DC
Red
uce
ambi
ent t
empe
ratu
re, r
e-lo
cate
uni
t.R
epla
ce th
e in
let f
ilter
(Se
e C
hapt
er 5
).
Perf
orm
the
Blo
wer
/ V
alve
Cal
ibra
tion
Proc
edur
e(S
ee S
ectio
n 8.
5).
Rep
lace
PC
.R
epla
ce th
e IL
FR.
Rep
lace
the
PRV
.R
epla
ce th
e B
low
er.
Che
ck C
onne
ctio
nsR
epla
ce to
uch
pad.
Rep
lace
DC
.R
epla
ce r
otar
y en
code
r.R
epla
ce D
C.
See
Sect
ion
6.3.
See
Sect
ion
6.3.
Poss
ible
Cau
seC
orre
ctiv
e Act
ion
Sym
ptom
Com
mon
Sys
tem
Lev
el P
robl
ems
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-5
6.2 Description of System AlarmsThe BiPAP Vision incorporates self-diagnostic testing capabilities and a number of safety features. Allsystem internal functions are checked automatically at start up and periodically throughout operation. Themicroprocessors continuously obtain readings from internal sensors to monitor machine functions andoperating conditions. Device malfunctions or abnormal operating conditions are analyzed and reportedaccording to the level of severity. Two primary alarm functions, Check Ventilator and Ventilator Inopera-tive, are available to identify a system malfunction. Patient Alarms are displayed on screen when activated.
All alarms contain an audible and visual element. In the event of an alarm condition, the audible alarmsounds and the screen changes to show the alarm condition in the Mode/Message Area. See Figure 6-1.
6.2.1 Patient Alarm Indications
Figure 6-1Patient Alarm Shown in Mode / Message Area
Flashing"ALARM"
Visualalarm
indication
PS = 9 cm H2OP (cm H2O)
Vol (ml)
Flow (L/min)
20
10
500
100
-100
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1500
1000
Hi P
ALARMCPAP
15cm H2O
Rate
Options
5BPM
%O 2
55%
VT 700 ml PIP 15 cm H2OMinVent 14 L/min
set
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-6
1045049
6.2.2 Patient Alarm Silence and Reset
The audible indicator of most alarms is self-cancellable if the patient alarm condition is corrected. The usercan silence the audible indicator by pressing the ALARM SILENCE hard key. The ALARM SILENCE hardkey turns off the audible alarm for two minutes. Additional pressing of the ALARM SILENCE hard key hasno effect on the alarm. When the alarm silence is active, the message “Alarm Silenced” appears in theMode / Message Area for the duration of the silence period. Any new alarm condition that occurs, exceptfor an Apnea alarm, during the silence period will provide a visual alert, but will not trigger the audiblealarm.
The visual patient alarm indicator in the Mode / Message Area is cancelled only when the ALARM RESEThard key is pressed. The ALARM RESET hard key cancels the alarm silence period and resets the visualindicators. The alarm immediately reactivates if the condition causing the alarm has not been corrected.
Description of System Alarms (Continued)
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-7
6.3 Alarm Indicators
6.3.1 Vision Ventilator Inoperative Indicator
Purpose: Alerts the user to a machine malfunction byilluminating the red “Wrench” icon on the displaypanel and activating an audible alarm. The ventilatorimmediately powers down and opens the internalvalves allowing ambient air to be drawn through theventilator for unimpeded spontaneous breathing. Theaudible and visual alerts remain active and cannot besilenced until the On / Off Switch is placed in theOFF position.
Active: At all times.
6.3.2 Check Ventilator Indicator
Purpose: Alerts the user of a potential abnormal operatingcondition by illuminating the yellow “Eye” icon on thedisplay panel and activating an audible alarm. Theaudible alarm can be temporarily silenced with theALARM SILENCE hard key. However, the visualindicator cannot be reset and remains illuminated untilthe error is corrected. The ventilator continues tooperate during a “Check Ventilator” condition.
Active: At all times.
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-8
1045049
Ala
rmM
eani
ngD
escr
iptio
nPo
ssib
le C
ause
Cor
rect
ive
Dis
play
Act
ion
Syst
em le
vel f
ailu
re th
atim
pairs
per
form
ance
of
the u
nit.
AC
pow
er fa
ilure
Tem
pera
ture
ove
rload
fuse
activ
ated
(Non
-res
etab
le).
No
bulk
supp
ly v
olta
ge.
Syst
em F
ailu
re –
A sy
stem
mal
func
tion
that
resu
lts in
mac
hine
shut
dow
n. T
he sy
stem
valv
es o
pen
to th
e at
mos
pher
e to
per
mit
unim
pede
d sp
onta
neou
s bre
athi
ng th
roug
h th
esy
stem
. Aud
ible
and
vis
ual i
ndic
ator
s are
activ
ated
; onc
e ac
tivat
ed, t
he a
udib
le a
larm
cann
ot b
e si
lenc
ed.
AC
Pow
er F
ailu
re –
Pow
er to
the
devi
ce is
lost
whi
le th
e po
wer
switc
h is
in th
e St
art p
ositi
on.
The
syst
em v
alve
s ope
n to
the
atm
osph
ere
tope
rmit
unim
pede
d sp
onta
neou
s bre
athi
ngth
roug
h th
e sy
stem
. Aud
ible
and
vis
ual i
ndic
a-to
rs a
re a
ctiv
ated
; onc
e ac
tivat
ed, t
he a
udib
leal
arm
can
not b
e si
lenc
ed.
Aud
ible
and
vis
ual i
ndic
ator
s are
act
ivat
ed. A
syst
em e
rror
has
occ
urre
d. T
he V
isio
n ve
ntila
tor
cont
inue
s to
oper
ate.
Ref
er to
the
Vent
Inop
Trou
bles
hoot
ing
Flow
Cha
rts o
n pa
ges 6
-14
and
6-15
for d
iagn
ostic
info
rmat
ion.
Verif
y in
put p
ower
.C
heck
fuse
s.
Rep
lace
Tra
nsfo
rmer
.
Rep
lace
PSS
.
Ref
er to
the
Che
ck V
ent
Erro
r Tro
uble
shoo
ting
Cha
rt on
pag
e 6-
12 fo
rdi
agno
stic
info
rmat
ion.
Syst
em er
ror.
Aud
ible
and
vis
ual i
ndic
ator
in p
roxi
mal
airw
aypr
essu
re se
tting
exc
eeds
the
high
pre
ssur
e se
tting
for m
ore
than
0.5
seco
nds.
The
insp
iratio
n is
term
inat
ed. A
udib
le a
larm
indi
catio
n ca
ncel
s if
the
subs
eque
nt b
reat
h is
bel
ow th
e hi
gh p
ress
ure
setti
ng.
Hi P
Rev
iew
hig
h pr
essu
real
arm
setti
ng.
Obs
erve
pat
ient
.
Impr
oper
Ala
rm se
tting
;al
arm
lim
it se
t bel
ow se
tpr
essu
re.
Patie
nt co
ughi
ng d
urin
gin
spira
tory
cycl
e.
Vent
ilato
rIn
oper
ativ
e
Che
ck V
entil
ator
Hig
h Pr
essu
re
6.4
Tro
uble
shoo
ting
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-9
Low
leak
dur
ing
exha
latio
n
Troubleshooting (Continued)
Low
Pre
ssur
eA
udib
le a
nd v
isua
l ala
rm in
dica
tors
if th
epr
oxim
al a
irway
pre
ssur
e re
mai
ns b
elow
the
low
pre
ssur
e se
tting
for t
he ti
me
set
with
the
Low
Pre
ssur
e D
elay
con
trol.
The
audi
ble
alar
m in
dica
tor c
ance
ls if
the
pres
sure
rise
s abo
ve th
e lo
w p
ress
ure
setti
ng.
Patie
nt d
isco
nnec
t or l
arge
leak
.
Patie
nt in
spira
tory
dem
and
exce
eds m
achi
ne-d
eliv
ered
flow
.
Low
Pre
ssur
e D
elay
set
inco
rrec
tly.
Impr
oper
ala
rm se
tting
; ala
rmlim
it se
t abo
ve se
t pre
ssur
e.
Lo P
Mon
itors
spon
tane
ous t
rigge
red
brea
ths w
ithin
user
-sel
ecta
ble
time
inte
rval
. Ti
me
inte
rval
rese
ts w
ith e
ach
spon
tane
ous t
rigge
r. If
asp
onta
neou
s trig
ger i
s not
det
ecte
d w
ithin
the
sele
cted
apn
ea ti
me
inte
rval
, the
re is
an
audi
ble
and
visu
al a
larm
indi
cato
r. T
he a
udib
le a
larm
indi
cato
r can
cels
whe
n tw
o co
nsec
utiv
e sp
onta
-ne
ous t
rigge
rs a
re d
etec
ted.
The
apn
ea a
larm
can
be d
isab
led.
Aud
ible
and
vis
ual i
ndic
ator
s if t
he m
inut
e
Act
ivat
ed w
hen
the
leak
, dur
ing
exha
latio
n, fa
lls50
% o
r 5 L
PM, w
hich
ever
is g
reat
er, b
elow
alim
it fo
r a p
erio
d of
one
min
ute.
Vent
ilatio
n is
bel
ow th
e al
arm
setti
ng.
The
audi
ble
alar
m in
dica
tor
canc
els i
f the
pat
ient
min
ute
vent
ilatio
n in
crea
ses a
bove
the
alar
mse
tting
. Ala
rm c
an b
e di
sabl
ed.
Apn
eaN
o sp
onta
neou
stri
gger
ed b
reat
hde
tect
edw
ithin
set
apne
a in
terv
al
Low
min
ute
vent
ilatio
nLo
Min
Vent
Exh.
Port
Patie
nt n
ot b
reat
hing
or
unab
le to
trig
ger v
entil
ator
.
Blo
ck o
r res
trict
ion
in th
e ai
rflo
w p
athw
ay.
Patie
nt d
isco
nnec
t or l
arge
leak
.
Dec
reas
e in
pat
ient
rate
or
tidal
vol
ume.
Impr
oper
ly se
t ala
rm li
mit.
Che
ck c
ircui
t and
patie
nt co
nnec
tion.
Che
ck th
e pa
tient
circ
uit f
or o
bstru
ctio
ns.
Che
ck in
let f
ilter
.
Rev
iew
Low
Pre
ssur
e Ala
rmD
elay
setti
ng.
Rev
iew
Low
Pre
ssur
e al
arm
setti
ng.
Che
ck a
ir flo
w p
athw
ay.
Ree
valu
ate
the
patie
ntan
d ch
eck
the
patie
ntci
rcui
t.
Ree
valu
ate
the
patie
ntan
d al
arm
setti
ng.
Che
ck c
ircui
t and
pat
ient
conn
ectio
n.
Ree
valu
ate
the
patie
nt a
ndal
arm
setti
ngs.
Ree
valu
ate
the
patie
nt a
ndal
arm
setti
ngs.
Trou
bles
hoot
ing
Cha
r t
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-10
1045049
Troubleshooting (Continued)
Ree
valu
ate
the
patie
nt a
ndal
arm
setti
ngs.
Ree
valu
ate
the
patie
nt a
ndal
arm
setti
ng.
Hi
Rat
e
Hig
h to
tal
b
reat
hing
ra
te
Con
tinuo
usly
com
pare
s the
tota
l bre
athi
ngra
te (m
achi
ne +
spon
tane
ous)
with
the
Hi
Rat
e al
arm
setti
ng.
Aud
ible
and
vis
ual
indi
cato
r if t
he m
easu
red
valu
e is
hig
her
than
the
alar
m se
tting
. Th
e au
dibl
e al
arm
self-
canc
els i
f the
tota
l bre
athi
ng ra
te d
rops
belo
w th
e al
arm
setti
ng.
Incr
ease
in p
atie
nt b
reat
hing
rate
.
Impr
oper
ly se
t ala
rm li
mit.
Mea
ning
Pos
sibl
e C
ause
Cor
rect
ive
Act
ion
Ree
valu
ate
the
patie
ntan
d al
arm
set
tings
.
Ala
rmD
ispl
ay
L
ow to
tal
b
reat
hing
ra
te
Con
tinuo
usly
com
pare
s the
tota
l bre
athi
ng ra
te(m
achi
ne +
spon
tane
ous)
with
the
Lo R
ate
alar
mse
tting
. A
udib
le a
nd v
isua
l ind
icat
or if
the
mea
sure
d va
lue
is lo
wer
than
the
alar
m se
tting
.Th
e au
dibl
e al
arm
self-
canc
els i
f the
tota
lbr
eath
ing
rate
incr
ease
s abo
ve th
e al
arm
setti
ng.
Ree
valu
ate
the
patie
ntan
d al
arm
set
tings
.
Ree
valu
ate
the
patie
ntan
d al
arm
set
tings
.
L
oss o
f
pre
ssur
e
regu
latio
n
Aud
ible
and
vis
ual i
ndic
ator
s if t
he m
easu
red
prox
imal
pre
ssur
e di
ffers
mor
e th
an ±
5 c
m H
2Oof
the
set p
ress
ure
for g
reat
er th
an 5
seco
nds.
Aud
ible
self-
canc
els i
f the
pro
xim
al p
ress
ure
retu
rns t
o w
ithin
± 5
cm
H2O
of t
he se
t val
ue.
Ala
rm is
aut
omat
ical
ly d
isab
led
whe
n th
e un
itgo
es in
to fl
ow li
mit
cont
rol.
Larg
e le
ak
Occ
lude
d pa
tient
circ
uit
Che
ck th
e pa
tient
circ
uit.
Des
crip
tion
Lo Rat
e
P R
egul
atio
n
Dec
reas
e in
pat
ient
bre
athi
ngra
te.
Patie
nt u
nabl
e to
trig
ger
vent
ilato
r.
Impr
oper
ly se
t ala
rm li
mit.
Trou
bles
hoot
ing
Cha
r t
Che
ck th
e pa
tient
circ
uit.
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-11
Troubleshooting (Continued)
Prox
imal
pres
sure
line
disc
onne
ct
Aud
ible
and
vis
ual i
ndic
ator
s if p
roxi
mal
pres
sure
mea
sure
s les
s tha
n 1.
0 cm
H2O
for
grea
ter t
han
1.0
seco
nd. A
udib
le a
larm
self-
canc
els i
f the
mea
sure
d pr
oxim
alpr
essu
re is
incr
ease
d ab
ove
1.0
cm H
2O.
Ala
rm is
aut
omat
ical
ly d
isab
led
whe
n th
eun
it go
es in
to fl
ow li
mit
cont
rol.
Prox
imal
pre
ssur
e lin
edi
scon
nect
ion
or o
bstru
ctio
n.Pr
oxLi
neD
isc
Che
ck th
e pr
oxim
alpr
essu
re li
ne.
Insu
ffici
ent o
xyge
nsu
pply
pre
ssur
e.
Obs
truct
ed O
2 inl
et fi
lter.
Che
ck th
e oxy
gen
supp
ly.
O2 Fl
owSy
stem
ala
rm th
at a
ctiv
ates
aud
ible
and
vis
ual
indi
cato
rs if
the
oxyg
en su
pply
is lo
ts.
The
audi
ble
alar
m d
oes n
ot se
lf-ca
ncel
afte
rco
rrec
tion.
Dur
ing
the
alar
m c
ondi
tion,
the
vent
ilato
r con
tinue
s to
func
tion.
Inco
rrec
tO
2 flo
w
Che
ck th
e oxy
gen
regu
lato
r inl
et fi
lter;
repl
ace
if ne
cess
ary.
Trou
bles
hoot
ing
Cha
r t
Mea
ning
P
ossi
ble
Cau
se
Cor
rect
ive
Act
ion
Ala
rmD
ispl
ay
Des
crip
tion
Dis
conn
ect
Mas
k ha
s be
enre
mov
ed o
rex
cess
ive
leak
.
Aud
ible
and
vis
ual i
ndic
ator
if m
ask
isre
mov
ed o
r be
com
es d
islo
dged
eno
ugh
toca
use
exce
ssiv
e le
ak.
(see
sec
tion
3.10
)
Aud
ible
sel
f-ca
ncel
s if
leak
is r
esol
ved.
Mas
k re
mov
ed o
r di
slod
ged.
Rea
pply
mas
k.
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-12
1045049
Perform Testing according tothe "Recommended Testingafter Part(s) Replacement"
found in Chapter 8
3
6.5 Check Vent Error Codes
Figure 6-3Check Vent Error Flow Chart
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-13
“Che
ck V
ent”
Err
or C
odes
100
RT
C f
ailu
re o
n th
e M
CR
eal T
ime
Clo
ck f
ailu
re o
n th
e M
CM
C
101
MC
NV
RA
M C
RC
err
orM
C N
on-V
olat
ile R
ando
m A
cces
s M
emor
y C
yclic
MC
Red
unda
ncy
Che
ck e
rror
102
Bac
kup
batte
ry f
ailu
re o
nB
acku
p ba
ttery
for
the
NV
RA
M a
nd R
TC
fai
lure
on
the
MC
the
MC
MC
103
V r
ef f
ailu
re o
n th
e M
CR
efer
ence
vol
tage
fai
lure
on
the
MC
MC
200
DC
dis
play
vol
tage
Err
or d
etec
ted
in th
e di
spla
y vo
ltage
on
the
DC
DC
201
DC
aud
ible
ala
rmA
udib
le a
larm
cur
rent
err
or d
etec
ted
on th
e D
CD
C
202
DC
Che
ck V
ent i
ndic
ator
Che
ck V
ent i
ndic
ator
cur
rent
err
or d
etec
ted
on th
e D
CD
C
203
DC
Ven
t Ino
p in
dica
tor
Ven
t Ino
p in
dica
tor
curr
ent e
rror
det
ecte
d on
the
DC
DC
204
DC
bac
klig
ht e
rror
Bac
klig
ht v
olta
ge e
rror
det
ecte
d on
the
D C
DC
205
DC
ala
rm b
atte
ryA
larm
bat
tery
vol
tage
low
on
the
DC
Rec
harg
e ba
ttery
(See
Sec
tion
5.8.
3)D
C20
6K
eypa
d E
rror
Key
is h
eld
dow
n to
o lo
ng (
30 s
econ
ds)
Key
pad,
DC
300
Cir
cula
tion
fan
Cir
cula
tion
fan
is n
ot o
pera
tiona
lC
ircu
lati
on f
an
301
Inva
lid
PC
Dat
a no
t re
ad s
ucce
ssfu
lly
duri
ng i
nsta
llat
ion
Blo
wer
Val
ve C
al, P
CC
alib
rati
on D
ata
303
Blo
wer
spe
edB
low
er s
peed
exc
eeds
165
00 R
PMB
low
erPC
306
OM
det
ecti
onPC
det
ects
OM
ori
gina
lly
pres
ent,
but b
ecam
eO
M c
able
disc
onne
cted
dur
ing
oper
atio
nO
MPC
Des
crip
tion
Error Codes (Continued)
Cod
eE
rror
Def
init
ion
Cor
rect
ive
Act
ion
(Rep
lace
in o
rder
unt
il th
epr
oble
m is
cor
rect
ed.)
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-14
1045049
-17 19 3
Figure 6-4Vent Inop Indicator Troubleshooting Flow Chart
6.6 Vent Inop Errors
Error Indicated on Vision Display
(Use when Vent Inop occurs and the unit operates afterwards)
NOTE: When checking for Vent InopErrors, make sure that errors on thePC, MC and DC are noted. If anyindicate a hardware or therapy deliverysuspected problem, follow this course ofaction.
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-15
Figure 6-5Vent Inop Indicator Troubleshooting Flow Chart
Vent Inop Errors (Continued)
Error Indicated PC/Laptop(use when “Ventilator Inoperative” is continuously activated)
NOTE: When checking for Vent InopErrors, make sure that errors on thePC, MC and DC are noted. If anyindicate a hardware or therapy deliverysuspected problem, follow this course ofaction.
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-16
1045049
Com
mon
Sys
tem
“V
ent
Inop
” E
rror
s
00
0H
ardw
are
Failu
reSu
bsys
tem
det
ects
a h
ardw
are
failu
reR
efer
to e
rror
rep
orte
d on
othe
r su
bsys
tem
601
E01
1601
Spur
ious
int
erru
ptM
CU
det
ects
spu
riou
s in
terr
upt
Subs
yste
m w
ith L
ED
lit
602
E02
1602
Una
ssig
ned
inte
rrup
tM
CU
det
ects
una
ssig
ned
inte
rrup
tSu
bsys
tem
with
LE
D li
t
603
E03
1603
Bus
int
erru
ptM
CU
det
ects
bus
inte
rrup
tSu
bsys
tem
with
LE
D li
t
604
E04
1604
Ille
gal
inst
ruct
ion
MC
U d
etec
ts i
llega
l in
stru
ctio
n ex
ecut
edSu
bsys
tem
with
LE
D li
t
605
E05
1605
Bre
akpo
int e
rror
MC
U d
etec
ts b
reak
poin
t err
orSu
bsys
tem
with
LE
D li
t
606
E06
1606
Div
ide
by z
ero
MC
U d
etec
ts d
ivid
e by
zer
oSu
bsys
tem
with
LE
D li
t
607
E07
1607
Uni
niti
aliz
ed i
nter
rupt
MC
U d
etec
ts u
nini
tializ
ed i
nter
rupt
Subs
yste
m w
ith L
ED
lit
608
E08
1608
Soft
war
e in
terr
upt
MC
U d
etec
ts s
oftw
are
inte
rrup
t exe
cute
dSu
bsys
tem
with
LE
D li
t
609
E09
1609
Unu
sed
inte
rrup
tM
CU
det
ects
unu
sed
inte
rrup
t ex
ecut
edSu
bsys
tem
with
LE
D li
t
60A
E0A
160A
RO
M C
RC
err
orE
PRO
M c
orru
pted
(st
ored
CR
C d
oes
not m
atch
Subs
yste
m w
ith L
ED
lit
calc
ulat
ed C
RC
)
60C
N/A
N/A
Bad
MC
sta
teIn
valid
dat
a on
“M
C s
tate
” si
gnal
Subs
yste
m w
ith L
ED
lit
60E
E0E
160E
Wat
chdo
g fa
ilure
Wat
chdo
g ci
rcui
try
failu
re (
soft
war
e co
ntin
ues
Subs
yste
m w
ith L
ED
lit
afte
r lo
ng d
elay
in w
atch
dog
timer
test
)
614
E14
1614
Wal
king
RA
M te
st e
rror
Patte
rn r
ead
from
RA
M d
oesn
’t m
atch
pat
tern
Subs
yste
m w
ith L
ED
lit
wri
tten
(RA
M h
ardw
are
prob
lem
)
616
E16
1616
Wat
chdo
g re
set a
fter
Wat
chdo
gPo
wer
-on
rese
t occ
urre
d af
ter W
atch
dog
test
Subs
yste
m w
ith L
ED
lit
Ala
rm P
AL
on
MC
test
com
plet
ed61
7E
1716
17SC
I fai
led
SCI
regi
ster
not
rea
dy f
or a
cha
ract
er to
be
outp
utSu
bsys
tem
with
LE
D li
taf
ter
a de
lay
loop
of
one
flip
-flo
p ite
ratio
ns
ICB
cab
le
700
F00
1700
CR
C e
rror
on
thir
d se
nd to
Cal
cula
ted
CR
C d
oes
not
mat
ch t
rans
mitt
ed C
RC
DC
DC
– M
Con
thi
rd t
ryM
CPC IC
B c
able
701
F01
1701
NA
K r
ecei
ved
on th
ird
send
toN
egat
ive
Ack
now
ledg
men
t m
essa
ge r
ecei
ved
DC
DC
-MC
on t
hird
try
MC
PC ICB
cab
le
702
F02
1702
Tack
tim
eout
on
thir
d se
nd t
oTa
ck n
ot r
ecei
ved
on l
ast
byte
sen
t w
ithin
DC
DC
-MC
750
usec
sM
CPC
MC
DC
PC
Err
or D
efin
itio
nD
escr
ipti
on
Cor
rect
ive
Act
ion
(Rep
lace
in o
rder
unt
il th
epr
oble
m is
cor
rect
ed.)
Vent Inop Errors (Continued)
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-17
Vent Inop Errors (Continued)C
omm
on S
yste
m “
Ven
t In
op”
Err
ors
703
F03
1703
Trp
ly ti
meo
ut o
n th
ird
send
toSl
ave
did
not s
tart
res
pond
ing
with
in o
ne m
sec
ICB
cab
leD
C-M
Cof
last
byt
e se
nt f
rom
MC
DC
MC
PCN
/AF0
417
04M
C ti
meo
ut fr
om s
lave
MC
did
not
requ
est d
ata
from
sla
ve w
ithin
M
C/P
C (i
f cod
e ex
ist)
15 m
secs
705
F05
1705
Pack
et d
oes
not f
it in
mes
sage
Buf
fer
in “
Mov
e Pa
cket
To
Mes
sage
” is
out
of
Subs
yste
m w
ith L
ED
lit
room
706
F06
1706
Inva
lid ti
mer
val
ueT
imer
s no
t ini
tializ
ed b
efor
e th
is c
all o
r inv
alid
Subs
yste
m w
ith L
ED
lit
data
on
the
tim
er p
aram
eter
707
F07
1707
Inva
lid
dela
y va
lue
Tim
ers
not i
nitia
lized
bef
ore
this
cal
l or r
eque
sted
Subs
yste
m w
ith L
ED
lit
dela
y is
gre
ater
than
one
min
ute
(pre
vent
s rol
love
r)70
8F0
817
08In
valid
del
ay (u
sec)
Tim
ers
not i
nitia
lized
bef
ore
this
cal
l or r
eque
sted
Subs
yste
m w
ith L
ED
lit
dela
y is
gre
ater
than
85
usec
s (u
se “
Del
ay”
for
larg
er d
elay
s)70
9F0
917
09G
PT n
ot in
itial
ized
GPT
not
initi
aliz
ed b
efor
e ca
ll to
Initi
ate
Tim
ers
Subs
yste
m w
ith L
ED
lit
is m
ade
70A
F0A
170A
Inva
lid
usec
tick
sT
imer
s no
t ini
tializ
ed b
efor
e th
is c
all o
r PC
sed
Subs
yste
m w
ith L
ED
lit
para
met
er to
larg
e (g
reat
er th
an 6
2499
pre
vent
sro
llove
r)70
BF0
B17
0BIn
valid
pri
ority
leve
lPC
sed
prio
rity
leve
l val
ue h
as in
valid
dat
aSu
bsys
tem
with
LE
D li
t70
CN
/AN
/AC
RC
err
or o
n th
ird
send
to P
CC
alcu
late
d C
RC
doe
s no
t mat
ch tr
ansm
itted
CR
CIC
B c
able
on th
ird
try
PC DC
MC
70D
N/A
N/A
NA
K r
ecei
ved
on th
ird
send
to P
CN
AK
rece
ived
on
thir
d tr
yIC
B c
able
PC DC
MC
70E
N/A
N/A
Tack
tim
eout
on
thir
d se
nd to
PC
Tack
not
rec
eive
d on
last
byt
e se
nt to
PC
with
inIC
B c
able
750
usec
sPC D
CM
C70
FN
/AN
/AT
rply
tim
eout
on
thir
d to
PC
PC d
id n
ot s
tart
res
pond
ing
with
in o
ne m
sec
ICB
cab
le o
f la
st b
yte
sent
fro
m M
CPC D
CM
C
F
FFF
F
FFF
F
FFF
Ille
gal E
rror
Rep
ort
S
oftw
are
reco
gnze
d an
ext
ra d
ata
bit
No
Act
ion
Req
uire
d
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-18
1045049
PC
Spe
cifi
c “V
ent
Inop
” E
rror
Cod
es
1201
AD
C ti
meo
utA
fter
rea
d of
inte
rnal
AD
C, i
ncom
plet
e co
nver
sion
occ
urre
d af
ter
aPC
173
usec
del
ay. (
ILFR
, PR
V, O
2, AN
A g
roun
d, V
ref)
1202
Blo
wer
spe
ed te
st f
ail
Inva
lid d
ata
in th
e “b
low
er te
st s
tatu
s” s
igna
lPC
1203
Err
or c
ontr
olli
ng o
pera
tion
al te
sts
Inva
lid d
ata
in th
e “t
est c
ase
prim
ary”
and
“te
st c
ase
seco
ndar
y”PC
sign
als
1204
MU
X v
olta
ge e
rror
Inva
lid d
ata
in th
e “M
UX
cha
nnel
” pa
ram
eter
PC12
05O
ther
vol
tage
err
orIn
valid
dat
a in
the
“cha
nnel
” pa
ram
eter
PC12
06IA
DC
fai
led
Inte
rnal
AD
C d
id n
ot c
ompl
ete
sequ
ence
bef
ore
back
grou
nd s
enso
rsPC
are
read
1207
MC
did
not
com
mun
icat
e w
ithin
MC
did
not
req
uest
sta
tus
with
in 3
0 se
cond
s of
PC
sta
rtin
gIC
B c
able
star
t-up
tim
eM
C, P
C, D
C12
0812
vol
ts v
olta
ge r
efer
ence
test
12 v
olt s
igna
l rea
d fr
om M
UX
is le
ss th
an 1
1 vo
lts
or g
reat
er th
anPC
fai
led
- op
erat
iona
l13
vol
ts12
0AB
ulk
supp
ly v
olta
ge r
efer
ence
test
Bul
k su
pply
sig
nal r
ead
from
MU
X is
less
than
20
volts
or
grea
ter
PCfa
iled
- o
pera
tion
alth
an 3
8.88
vol
ts12
0B–1
2 vo
lts
volt
age
refe
renc
e te
st–1
2 vo
lt si
gnal
rea
d fr
om M
UX
is le
ss th
an –
13 v
olts
or
grea
ter
than
PCfa
iled
- o
pera
tion
al–1
1 vo
lts12
0C–5
vol
ts v
olta
ge r
efer
ence
test
– 5
volt
sign
al r
ead
from
MU
X is
less
than
–5.
425
volts
or
grea
ter
PCfa
iled
- o
pera
tion
alth
an -
4.54
712
0DR
efer
ence
Vol
tage
test
Vol
tage
ref
eren
ce s
igna
l rea
d fr
om M
UX
is le
ss th
an 3
.749
vol
ts o
rP
Cfa
iled
- o
pera
tion
algr
eate
r th
an 4
.445
vol
ts12
0EQ
SM
fai
led
Que
ued
Seri
al M
odul
e fa
iled
PC12
0FE
rror
in r
ise
rate
pro
cess
ing
The
Ris
e R
ate
info
rmat
ion
in th
e M
C to
PC
mes
sage
not
with
inIC
B c
able
rang
e (0
-4)
PC, M
C, D
C12
10
Blo
wer
vol
tage
bad
in s
afe
stat
eB
low
er d
rive
vol
tage
rea
d fr
om M
UX
is g
reat
er th
an 1
5 m
VPC
1211
PRV
vol
tage
bad
in s
afe
stat
ePR
V d
rive
vol
tage
rea
d fr
om in
tern
al A
DC
is g
reat
er th
an 1
5 m
VPC
1212
ILFR
vol
tage
bad
in s
afe
stat
eIL
FR d
rive
vol
tage
rea
d fr
om in
tern
al A
DC
is g
reat
er th
an 1
5 m
VPC
1213
O2 v
alve
vol
tage
bad
in s
afe
stat
eO
xyge
n m
odul
e dr
ive
volt
age
read
fro
m I
nter
nal A
DC
is g
reat
erPC
than
15 m
V12
14Fa
ilur
e co
ntro
llin
g st
art-
up te
sts
Inva
lid
data
in “
test
cas
e”PC
1215
12 v
olts
vol
tage
ref
eren
ce te
st12
vol
t sig
nal r
ead
from
MU
X is
less
than
10.
12 v
olts
or
grea
ter
PCfa
iled
- st
art-
upth
an 1
4.04
vol
ts12
16A
NA
gro
und
volt
age
refe
renc
e te
stA
NA
and
sig
nal r
ead
from
MU
X is
less
than
0 m
V o
r gr
eate
r th
anPC
faile
d -
star
t-up
500
mV
1217
Bul
k su
pply
vol
tage
ref
eren
ce te
stB
ulk
supp
ly s
igna
l rea
d fr
om M
UX
is le
ss th
an 1
8.4
V o
r gr
eate
rPC
faile
d -
star
t-up
than
38.
88 V
Cod
eE
rror
Des
crip
tion
Cor
rect
ive
Act
ion
(Rep
lace
in o
rder
unt
ilth
e pr
oble
m is
sol
ved.
)
Vent Inop Errors (Continued)
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-19
1218
–12
volt
s vo
ltag
e re
fere
nce
test
–12
volt
sig
nal r
ead
from
MU
X is
less
than
–14
.04
V o
r gr
eate
r th
anPC
faile
d -
star
t-up
–10.
12 V
1219
– 5
volts
vol
tage
ref
eren
ce te
st–5
vol
t sig
nal r
ead
from
MU
X is
less
than
–5.
833
V o
r gr
eate
r th
anPC
faile
d -
star
t-up
– 4.
467
121A
Ref
eren
ce V
olta
ge te
stV
olta
ge r
efer
ence
sig
nal r
ead
from
MU
X is
less
than
3.7
49 V
or
PCfa
iled
- st
art-
upgr
eate
r th
an 4
.445
V12
1BB
low
er v
olta
ge r
efer
ence
bad
-B
low
er d
rive
vol
tage
rea
d fr
om M
UX
is g
reat
er th
an 1
00 m
VPC
star
t-up
121C
ILFR
vol
tage
ref
eren
ce b
ad -
ILFR
dri
ve v
olta
ge r
ead
from
inte
rnal
AD
C is
gre
ater
than
100
mV
PCst
art-
up12
1DO
2 val
ve v
olta
ge r
efer
ence
bad
-O
xyge
n M
odul
e dr
ive
volta
ge r
ead
from
Int
erna
l AD
C is
gre
ater
than
PCst
art-
up10
0 m
V12
1EP
RV
vol
tage
ref
eren
ce b
ad -
PRV
dri
ve v
olta
ge r
ead
from
inte
rnal
AD
C is
gre
ater
than
100
mV
PCop
erat
iona
l12
1FB
low
er v
olta
ge r
efer
ence
bad
-B
low
er d
rive
vol
tage
rea
d fr
om M
UX
is g
reat
er th
an 4
0 m
V o
n th
ePC
oper
atio
nal
seco
nd tr
y im
med
iate
ly a
fter
fir
st tr
y12
2AC
orru
pted
Res
ista
nce
Tabl
eIn
vali
d da
ta in
the
resi
stan
ce ta
ble
- So
ftw
are
Err
orPC
122B
Inva
lid M
ode
Sele
cted
mod
e no
t sup
port
ed in
sof
twar
e -
Soft
war
e E
rror
PC n
eeds
PAV
/ T
EPR
OM
122
CB
low
er F
ailu
reB
low
er B
ad (
over
curr
ent,
unde
rvol
tage
, shu
t dow
n)PC
, Blo
wer
122D
Bad
Bac
kup
unit
outle
tD
ata
can
not b
e re
ad f
rom
bac
kup
unit
outle
t pre
ssor
sen
sor
PCpr
essu
re s
enso
r12
2EU
nit o
utle
t dif
fere
nce
Uni
t out
let a
nd b
acku
p un
it ou
tlet s
enso
r re
adin
gs d
iffe
r to
o m
uch
PC, A
FM,P
SS 1
22F
Stuc
k ba
ckup
uni
t out
let p
ress
ure
Bad
bac
kup
unit
outle
t pre
ssur
e se
nsor
or A
DC
PCse
nsor
122
0IL
FR v
olta
ge r
efer
ence
bad
-IL
FR d
rive
vol
tage
rea
d fr
om th
e in
tern
al A
DC
is g
reat
er th
anPC
oper
atio
nal
40 m
V o
n th
e se
cond
try
imm
edia
tely
aft
er th
e fi
rst t
ry12
21O
2 va
lve
volta
ge r
efer
ence
bad
-O
xyge
n M
odul
e dr
ive
volta
ge r
ead
from
the
inte
rnal
AD
C is
gre
ater
PCop
erat
iona
lth
an 4
0 m
V o
n th
e se
cond
try
imm
edia
tely
aft
er th
e fi
rst t
ry12
22PR
V v
olta
ge r
efer
ence
bad
-PR
V d
rive
vol
tage
rea
d fr
om th
e in
tern
al A
DC
is g
reat
er th
anPC
oper
atio
nal
40 m
V o
n th
e se
cond
try
imm
edia
tely
aft
er th
e fi
rst t
ry12
25In
tern
al A
DC
cal
ibra
tion
divi
de b
yA
nalo
g V
ref
sign
al =
ana
log
grou
ndPC
zero
1226
Bad
O2
tem
pera
ture
sen
sor
Oxy
gen
Mod
ule
tem
pera
ture
out
of
rang
e (4
0-16
0° F
), f
or 2
500
OM
coun
ts, c
onve
rsio
n di
d no
t com
plet
e12
27B
low
er o
ut o
f ca
libra
tion
/ stu
ckB
low
er s
peed
± 7
50 R
PM f
rom
des
ired
set
ting
for
12 s
econ
dsB
low
erm
otor
PC12
28B
ad p
ress
ure
setp
oint
cal
cula
ted
LPF
of
pres
sure
set
poin
t in
the
rise
rat
e ca
lcul
atio
n no
t in
rang
e of
PCth
e un
it ou
tlet p
ress
ure
- er
ror
in L
PF c
alcu
latio
n12
29Pa
tient
pre
ssur
e se
nsor
dri
ft e
rror
LPF
of
chan
ge in
pre
ssur
e av
erag
e is
gre
ater
than
10
cm H
2O if
the
PCfl
ow is
less
than
5 L
PM12
30V
olta
ge F
ailu
reV
olta
ge r
efer
ence
test
fai
led
PC
Vent Inop Errors (Continued)
PC
Spe
cifi
c “V
ent
Inop
” E
rror
Cod
es
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-20
1045049
1300
Bad
AFM
cal
ibra
tion
AFM
cal
ibra
tion
data
all
zero
es o
r C
RC
bad
AFM
data
CR
C13
01B
ad O
2 Mod
ule
calib
ratio
n da
taO
M c
alib
ratio
n al
l zer
oes
or C
RC
bad
OM
CR
C13
02B
ad P
C c
alib
ratio
n da
ta C
RC
PC c
alib
ratio
n da
ta a
ll ze
roes
or
CR
C b
adPC
1304
QSM
tim
eout
QSP
I no
t fin
ishe
d af
ter
100
usec
s af
ter
sele
ctio
n of
EE
PRO
M f
orPC
read
ing
of a
ctua
l rea
d13
05N
o A
FMA
FM d
etec
tion
sig
nal,
supp
lied
by
hard
war
e, is
gre
ater
than
AFM
cab
le30
0 m
V (
cut o
ff f
or A
FM b
eing
pre
sent
)A
FMPC
1308
Bad
pre
ssur
e se
tpoi
nt m
essa
geM
C c
omm
ande
d pr
essu
re in
mes
sage
is g
reat
er th
an 4
0 cm
H2O
ICB
cab
lefr
om M
CM
CPC D
C13
09B
ad r
ise
rate
mes
sage
fro
m M
CR
ise
rate
set
poin
t in
MC
mes
sage
is g
reat
er th
an f
our
(4)
ICB
cab
leM
CPC D
C13
0AB
ad I
PAP
setp
oint
mes
sage
fro
mIP
AP
pres
sure
set
poin
t in
the
MC
mes
sage
is g
reat
er th
anIC
B c
able
MC
40 c
m H
2O (
non-
PAV
) or
50
cm H
2O (
PAV
)M
CPC D
C13
0BB
ad O
2 con
cent
ratio
n se
tpoi
ntO
xyge
n co
ncen
trat
ion
in th
e M
C m
essa
ge is
less
than
21
orIC
B c
able
mes
sage
fro
m M
Cgr
eate
r th
an 1
00M
CPC D
C13
0CIn
valid
MC
mes
sage
Byt
e co
unt i
n m
essa
ge n
ot e
qual
to e
xpec
ted
byte
cou
ntIC
B c
able
MC
PC DC
1312
AFM
det
ect c
onve
rsio
n ca
nnot
be
Rea
d of
AD
C n
ot c
ompl
eted
in ti
me
for
the
AFM
det
ectio
n re
adA
FM c
able
done
AFM
PC
Vent Inop Errors (Continued)
Cod
eE
rror
Des
crip
tion
Cor
rect
ive
Act
ion
(Rep
lace
in o
rder
unt
ilth
e pr
oble
m is
sol
ved.
)
PC
Spe
cific
“V
ent
Inop
” E
rror
Cod
es
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-21
Vent Inop Errors (Continued)P
C S
peci
fic “
Ven
t In
op”
Err
or C
odes
1313
OM
det
ect
conv
ersi
on c
anno
t be
Rea
d of
AD
C n
ot c
ompl
eted
in ti
me
for O
M d
etec
tion
read
OM
cab
ledo
neO
M, P
C, A
M
1316
Stuc
k ab
solu
te a
tmos
pher
icSe
nsor
rea
ding
is le
ss th
an 2
0 in
. HG
or
grea
ter
than
40
in. H
G f
orPC
pres
sure
sen
sor
2.5
seco
nds
1317
Stuc
k un
it ou
tlet p
ress
ure
Sens
or r
eadi
ng is
less
than
–5
cm H
2O o
r gr
eate
r th
an 7
0 cm
H2O
AFM
cab
lefo
r 2.
5 se
cond
sA
FM13
18St
uck
patie
nt p
ress
ure
sens
orSe
nsor
rea
ding
is le
ss th
an –
5 cm
H2O
or
grea
ter
than
50
cm H
2OPC
for
2.5
seco
nds
1319
Stuc
k to
tal f
low
sen
sor
Sens
or r
eadi
ng is
less
than
–20
0 L
PM o
r gr
eate
r th
an 3
00 L
PMA
FM c
able
AFM
131A
Stuc
k O
2 fl
ow s
enso
rSe
nsor
rea
ding
is g
reat
er th
an 1
20 L
PM f
or 2
.5 s
econ
dsO
M c
able
OM
131B
Bad
air
tem
pera
ture
sen
sor
Air
tem
pera
ture
out
of
rang
e (4
0 -
160°
F)
for
2500
cou
nts,
AFM
cab
leco
nver
sion
not
com
plet
eA
FMPC
131C
AT
M d
etec
ted
bad
unit
outle
t(H
igh
AT
M -
Low
AT
M)
× 1
00 is
gre
ater
than
or
equa
l to
(5 ×
Hig
hPC
pres
sure
sen
sor
AT
M)
131D
Bad
cal
ibra
tion
data
2 C
RC
PC c
alib
ratio
n da
ta 2
CR
C is
bad
aft
er f
illin
g w
ith e
ither
def
ault
PCva
lues
or
calc
ulat
ed d
ata
and
read
ing
them
bac
k ou
t13
1EB
ad P
C c
alib
ratio
n da
ta 3
CR
CPC
cal
ibra
tion
data
3 C
RC
is b
ad a
fter
fill
ing
with
def
ault
valu
esPC
and
read
them
bac
k ou
t13
1FE
rror
in d
rift
test
sIn
vali
d da
ta i
n “d
rift
test
cas
e”PC
1320
Bad
AFM
dri
ft c
alib
ratio
n da
taA
FM c
alib
ratio
n da
ta 1
CR
C is
bad
aft
er f
illin
g w
ith e
ither
def
ault
AFM
cab
leC
RC
valu
es o
r ca
lcul
ated
val
ues
and
read
them
bac
k ou
tA
FMPC
1321
Bad
PC
cal
ibra
tion
PC c
alib
ratio
n da
ta 4
CR
C is
bad
aft
er f
illin
g w
ith e
ither
def
ault
PCva
lues
or
calc
ulat
ed d
ata
and
read
them
bac
k13
22Se
nsor
dri
ft f
ailu
reU
nit o
utle
t or
pres
sure
sen
sor
out o
f ra
nge
(Tol
eran
ce +
2 c
m H
2OA
FM c
able
arou
nd n
omin
al)
AFM
PC13
23B
ad C
alib
ratio
n da
ta 6
CR
CD
rift
Dat
a co
uld
not b
e up
date
d.PC
1324
Bad
OM
dri
ft c
alib
ratio
n da
taO
M c
alib
ratio
n da
ta 1
CR
C is
bad
aft
er f
illin
g w
ith e
ither
def
ault
OM
cab
le,
CR
Cva
lues
or
calc
ulat
ed d
ata
and
read
ing
them
bac
kO
M, P
AS
1325
Tota
l Flo
w S
enso
r Dri
ftTo
tal F
low
sen
sor
drif
ted
too
muc
hA
FM c
able
,A
FM, P
AS
1326
Oxy
gen
Flow
Sen
sor D
rift
Oxy
gen
Flow
sen
sor
drif
ted
too
muc
hO
M c
able
OM
,PA
S
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-22
1045049
MC
Spe
cific
“V
ent
Inop
” E
rror
Cod
es
206
RT
C te
st e
rror
Inva
lid d
ata
on th
e “R
TC
cas
e” s
igna
l or
SPI
time-
out w
hen
MC
atte
mpt
ing
to g
et ti
me
207
Ill
egal
Ope
rati
onal
Tes
tR
eque
sted
test
doe
s no
t exi
st
MC
209
+12
vol
t out
of
rang
eA
DC
vol
tage
test
MC
20A
-12
volt
out o
f ra
nge
AD
C v
olta
ge te
stM
C
20B
+24
vol
t val
ue o
ut o
f ra
nge
AC
C v
olta
ge te
stM
C
20C
Ref
eren
ce v
olta
ge v
alue
out
of
AD
C v
olta
ge te
stM
Cra
nge
20D
AD
C c
ould
not
ret
urn
+12
vol
tA
DC
vol
tage
test
MC
valu
e
20E
AD
C c
ould
not
ret
urn-
12 v
olt
AD
C v
olta
ge te
stM
Cra
nge
20F
AD
C c
ould
not
ret
urn
+24
vol
tA
DC
vol
tage
test
MC
valu
e
210
AD
C c
ould
not
ret
urn
Ref
eren
ceA
DC
vol
tage
test
MC
Vol
tage
Val
ue21
1Po
wer
Fai
l with
out A
C F
ail
Los
s of
bul
k su
pply
with
out l
oss
of A
C in
put c
ause
d by
PS1
trip
MC
PSS
PC
301
Inva
lid b
yte
coun
t in
DC
SB
yte
coun
t fro
m D
CS
not w
ithin
ran
ge (
grea
ter
than
0)
ICB
cab
lem
essa
geD
CM
C30
4D
ivid
e by
zer
o in
sum
tota
lC
alcu
latio
n er
ror
MC
brea
ths
calc
ulat
ion
305
Div
ide
by z
ero
in b
asel
ine
erro
rC
lock
cyc
le ti
mes
per
bre
ath
= 0
MC
calc
ulat
ion
306
Div
ide
by z
ero
in c
alc.
BPM
/ M
inSu
m to
tal t
ime
= 0
MC
Ven
t cal
c.
Cor
rect
ive
Act
ion
(Rep
lace
in o
rder
unt
ilth
e pr
oble
m is
cor
rect
ed.)
Cod
eE
rror
Def
initi
onD
escr
ipti
on
Vent Inop Errors (Continued)
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-23
332
Pres
sure
reg
ulat
ion
Can
not r
egul
ate
to 2
cm
H2O
in P
ress
ure
Out
or
Flow
Lim
it C
ontr
olIL
FR v
alve
PRV
val
veB
low
erPC A
FMM
C33
3In
vali
d S
/ T s
tate
Inva
lid
data
on
“sys
tem
sta
tus
stat
e” s
igna
l (no
t BPM
, IPA
P, o
rM
CE
PAP)
334
Inva
lid P
AV
sta
teIn
valid
dat
a on
“sy
stem
sta
tus
stat
e” s
igna
l (no
t BPM
, IPA
P,M
CE
PAP,
or
To I
nspi
rato
ry)
335
Inva
lid m
ode
Inva
lid d
ata
on “
activ
e m
ode”
sig
nal (
not S
tand
by, C
PAP,
or
MC
PAV
/T)
Cod
eE
rror
Def
init
ion
Des
crip
tion
Cor
rect
ive
Act
ion
(R
epla
ce in
ord
er u
ntil
the
prob
lem
is c
orre
cted
.)
Vent Inop Errors (Continued) M
C S
peci
fic “
Ven
t In
op”
Err
or C
odes
307
Div
ide
by z
ero
in T
i / T
tot
Clo
ck c
ycle
s ti
me
per
brea
th =
0M
Cca
lcul
atio
n30
AM
C s
can
cann
ot b
e pe
rfor
med
Res
pons
e ta
sk d
id n
ot c
ompl
ete
proc
essi
ng b
efor
e 10
mse
csIC
B c
able
(ove
rflo
w o
f 10
mse
cs p
roce
ss)
inte
rrup
t occ
urre
d ag
ain
DC
PC
30B
Inva
lid c
omm
and
for
CPA
P m
ode
Rec
eive
d co
mm
and
ID f
rom
DC
for
som
e S/
T o
r PA
V/T
spe
cifi
cD
Cm
essa
geM
C30
CIn
valid
com
man
d fo
r S/
T m
ode
Rec
eive
d co
mm
and
ID f
rom
DC
for
som
e C
PAP
or P
AV
/TD
C s
peci
fic
mes
sage
MC
30D
Inva
lid c
omm
and
for
PAV
/ T
mod
eR
ecei
ved
com
man
d ID
fro
m D
C f
or s
ome
CPA
P or
S/T
DC
30E
No
disp
atch
fun
ctio
nC
omm
and
ID f
rom
DC
not
rec
ogni
zed
DC
310
Inva
lid m
ode
upda
teIn
valid
mod
e up
date
MC
311
Ille
gal a
larm
mod
ule
Har
dwar
e re
turn
s so
met
hing
oth
er th
an b
uilt-
in M
odul
e B
MC
312
MC
Sca
n O
verr
uns
Res
pons
e ta
sk d
id n
ot c
ompl
ete
proc
essi
ng b
efor
e 10
mse
cs in
terr
upt
ICB
cab
leoc
curr
ed a
gain
, 3 ti
mes
in 1
hou
r.D
CPC M
C31
3PA
V/T
Sec
urit
y fa
ilur
ePA
V/T
Sof
twar
e im
plem
enta
tion
not
acc
essi
ble
Con
tact
Res
piro
nics
Tech
nica
lSe
rvic
e
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-24
1045049
B0F
No
grap
h st
ruct
ure
avai
labl
eA
n at
tem
pt is
bei
ng m
ade
to in
itia
lize
a f
ourt
h gr
aph
D C
B10
Spur
ious
key
pad
inte
rrup
tsM
ore
than
ten
keyp
ad in
terr
upts
in a
row
with
no
key
depr
esse
dTo
uch
pad
D C
11D
7In
valid
sta
rt-u
p te
stIn
valid
“te
st c
ase”
dat
aD
C11
D8
Inva
lid B
IST
test
Inva
lid “
Bui
lt-In
Sel
f Te
st”
case
dat
aD
C11
D1
Key
pad
Err
orK
ey is
pre
ssed
dur
ing
star
t-up
test
s or
hel
d do
wn
too
long
(10
sec
.)To
uchp
adD
C
DC
Spe
cifi
c “V
ent
Inop
” E
rror
Cod
esVent Inop Errors (Continued)
B00
Bad
IC
B m
essa
ge f
rom
MC
Stat
us in
sel
f-te
st m
essa
ge n
ot v
alid
, B
yte
coun
t in
mes
sage
gre
ater
ICB
cab
leth
an 1
25, c
omm
and
ID n
ot r
ecog
nize
d.D
CM
CPC
B01
Bad
dow
nloa
d se
quen
ce f
rom
MC
DC
rec
eive
d do
wnl
oad
mes
sage
whe
n no
t exp
ectin
g it
ICB
cab
leD
CM
CPC
B02
Bad
mod
eIn
valid
dat
a in
“te
st m
ode”
and
“te
st m
ode”
sig
nals
. M
ode-
spec
ific
DC
mes
sage
s re
ceiv
ed in
the
wro
ng m
ode
B03
Err
or d
ecod
ing
hard
key
tabl
eIC
B m
essa
ge c
orre
spon
ding
to s
elec
ted
hard
key
not
val
idD
CB
04B
ad s
cree
n st
ate
Rec
eive
sof
t key
sel
ectio
n fo
r m
ode
whe
n im
poss
ible
(ill
egal
ent
ry in
toD
Cpr
oces
s ke
y st
roke
fun
ctio
n)B
09Si
mul
tane
ous
failu
re o
f au
dibl
eSi
mul
tane
ous
failu
re o
f V
ent I
nop
LE
D a
nd A
udib
le A
larm
as
DC
alar
m a
nd s
yste
m e
rror
LE
D in
dica
ted
by h
ardw
are
B0A
MC
did
not
sta
rt c
omm
unic
atio
nM
C d
id n
ot s
end
stat
us r
eque
st w
ithin
30
seco
nds
of th
e D
CS
MC
with
in s
tart
-up
time
star
ting
upD
CB
0BB
ad f
ont t
ype
Inva
lid d
ata
on th
e “G
scr
een
font
type
” si
gnal
D C
B0C
Bad
vid
eo m
emor
y ad
dres
sC
alcu
late
d sc
reen
pix
el to
whi
ch to
beg
in w
riti
ng is
to la
rge
(off
D C
the
scre
en)
B0D
DC
que
ue o
verf
low
No
room
in th
e di
spla
y qu
eue
for
inco
min
g M
C m
essa
geD
C(b
ackg
roun
d no
t run
ning
oft
en e
noug
h)B
0EB
ad g
raph
siz
eX
leng
th o
r Y le
ngth
is le
ss th
an o
r eq
ual t
o ze
ro (
inva
lid m
emor
y da
ta)
D C
Cod
eE
rror
Def
init
ion
Des
crip
tion
Cor
rect
ive
Act
ion
(R
epla
ce in
ord
er u
ntil
the
prob
lem
is c
orre
cted
.)
BiPAP Vision Service Manual
Chapter 6: Troubleshooting
1045049
6-25
Abbreviation DefinitionADC Analog to Digital Converter
AFM Air Flow Module
ANA Analog
ATM Atmospheric
BIST Built-In Self Test
CRC Cyclic Redundancy Check
D C Display Control
EPROM Electrically Programmable Read Only Memory
EEPROM Electrically Erasable Programmable Read Only Memory
GPT General Purpose Timer
IADC Internal Analog to Digital Converter
ICB Intermodule Communications Bus
ILFR In-Line Flow Restrictor
LCD Liquid Crystal Display
LED Light Emitting Diode
LPF Low PCs Filter
MC Main Control
MCU Microcontroller Unit
MP Microprocessor
MUX Multiplexer
NAK Negative Acknowledgment
NVRAM Non-Volatile Random Access Memory
O2 Oxygen
OM Oxygen Module
Error Codes Chart Abbreviation Definitions
BiPAP Vision Service Manual
Chapter 6: Troubleshooting6-26
1045049
PC Pressure Control
PAV Proportional Assist Ventilation
PAV/T Proportional Assist Ventilation / Timed
PRV Pressure Release Valve
QSM Queued Serial Module
QSP Queued Serial Peripheral Interface
RAM Random Access Memory
ROM Read Only Memory
RPM Revolutions Per Minute
RTC Real Time Clock
SCI Serial Interface
SPI Serial Peripheral Interface
Tack Acknowledge Timer
Trply Reply Timer
Vref Voltage Reference
Abbreviation Definition
Error Codes (Continued)
Error Codes Chart Abbreviation Definitions (Continued)
BiPAP Vision Service Manual
7-1Chapter 7: Repair and Replacement
1045049
Chapter 7: Repair and Replacement
7.1 Contact Information .................................................................. 7-2
7.2 Exploded View............................................................................ 7-3
7.3 BiPAP Vision Repair Kits .......................................................... 7-5
7.4 Mobile Stand II and III Repair Parts .....................................7-10
7.5 Replacement Identification Photos ........................................ 7-11
7.6 Touch Pad Replacement Instructions ................................... 7-59
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-2
1045049
Chapter 7: Repair and Replacement
7.1 Contact InformationFigures 7-1 and 7-2 list the names and identify the locations of major replaceable components in the BiPAPVision. These drawings provide a quick reference and overview of the unit.
Note: Refer to Section 8.2 for testing that is required after items are replaced.
For replacement part ordering information, technical or clinical assistance contact Respironics CustomerService at:
U.S. and Canada
Parts Ordering: 1-800-345-6443Fax: 1-800-886-0245
Technical Support: 1-800-345-6443Fax: 1-724-387-5236
International (Parts or Technical Assistance)
Phone: 1-724-387-4000Fax: 1-724-387-5012
E-Mail Technical Assistance [email protected]
Visit Respironics Home Page on the World Wide Web at:
http://www.respironics.com
BiPAP Vision Service Manual
7-3Chapter 7: Repair and Replacement
1045049
Figure 7-1 BiPAP Vision Ventilator Component Location and Identification
7.2 Exploded View
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-4
1045049
( )
*
Exploded View (Continued)
Figure 7-2Front Panel Assembly Exploded View
* Not available as a repair kit, contact Technical Support for assistance.
BiPAP Vision Service Manual
7-5Chapter 7: Repair and Replacement
1045049
Replacement Kit Replacement Part No. Photo Page No.AC Inlet (includes power inlet filter) 582138 7-13,7-14
AC Power Cord (North American)(See Note 2) 362435 Not Shown
AC Power Cord Clamp 1000751 7-13,7-43
Airflow Module (AFM) 582127 7-19,7-31,7-37
Alarm Module (Optional) 582158 7-36
Audible Alarm 1000743 7-19,7-30,7-31
Backlight 1014432 7-56
Battery, (MC board) S/N >106K 1006005 7-36
Battery, Lithium (MC board) S/N<106K 1001988 7-53
Battery (DC, Alarm) 1012819 7-17
Blower Assembly 582128 7-20,7-21
Blower Muffler 582129 7-20
Blower Valve Coupler 1003728 7-26,7-57
Blower Vibration Isolator (x3) 1003893 7-21
Bottom Enclosure S/N < 106K 582130 7-43,7-55
Bottom Enclosure S/N > 106K 1004700 7-13,7-55
Cable Kit (all interconnecting) 582131 Not Shown
Circulation Fan 582132 7-26,7-27
Circulation Fan Muffler English – 582155 International - 1005618 7-16,7-43
Coiled Pressure Tube 28” 1000752 7-19,7-30,7-31
DC Subsystem S/N >106K (see note 4) 1004709 7-17
DC/LCD Ribbon Cable 1016457 7-56
DCS Connector 1007206 Not Shown
DC/MC/PC Upgrade with PAV S/N<106K 1004707 7-24,7-25
DC/MC/PC Upgrade S/N<106K 1004714 7-24,7-25
Display Control (D/CS) 582133 7-24, 7-25, 7-45, 7-46
EPROM V11 S/N<106K 1000286 7-47
EPROMS V11 S/N<106K W/PAV 1003524 7-47
EPROM V12 S/N<106K 1000351 Not Shown
EPROMS PAV 12 S/N<106K 1000349 Not Shown
EPROMS V13 S/N>106K 1000353 7-11,7-36
EPROMS PAV V13 S/N>106K 1000354 7-11,7-36
7.3 BiPAP Vision Repair Kits
(See Note 8)
(See Note 8)
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-6
1045049
Replacement Kit Replacement Part No. Photo Page No.
BiPAP Vision Repair Kits (Continued)
EPROM Extraction Tool Kit 1006874 Not Shown
Front Panel Enclosure 582135 7-54
Fuses, 115VAC, S/N <100500 582100 Not Shown
Fuses, 100-120 Volt, S/N >100499 1000749 7-14
Fuses, 230-240 Volt, all S/N’s 1000750 7-14
Grounding Post 1002902 7-13,7-26
Grounding Post Hand Punch 1002991 Not Shown
Keypad, English 582151 7-54Keypad, German 582221Keypad, Universal 1004712
Hose Kit (All internal Tubing) 582136 Not Shown
ICB Cable S/N <106K 582159 7-49
ICB Cable S/N >106K 1004695 7-18,7-19,7-28,7-30
In-Line Flow Restrictor (ILFR) Valve Assembly 582137 7-29,7-35,7-39
Inlet Filter Cover 1003444 7-13,7-15,7-43
Inlet Filter Enclosure Assembly (see note 7) 582134 7-13,7-15,7-20
Inlet Filter Foam Strip 1004493 7-52
Inlet Filter Replacement (×6) 582101 7-15
Inlet Mesh Filter (Nylon) 1000747 7-15
Label, Diagnostic/Nurse S/N>106K 1004703 7-16
Liquid Crystal Display (LCD) Assembly 582139 7-17,7-56
Main Power Switch 582141 7-13,7-26,7-38
(Also part of upgrade
kit 1004713)
(Also part ofupgrade kit 1000356)
BiPAP Vision Service Manual
7-7Chapter 7: Repair and Replacement
1045049
MC/DC Cable S/N>106K 1004698 7-28
MC Board S/N>106K (see note3,4) 1004711 7-34,7-36
Mobile Stand III Shipper 1009410 Not Shown
Mobile Stand III drawer feet 1009745 Not Shown
Ni-Cad Alarm Battery for DC (all) 1012819 7-17, 7-22, 7-25
Nurse Call Adapter (Executon/Hill-Rom connector) 1014280 Not Shown
Nurse Call Cable 1003742 Not Shown
Nurse Call Harness S/N >106K 1004697 7-26,7-27,7-36
Oxygen Baffle 1004705 7-26,7-31,7-35
Oxygen Module (OM) Assembly English- 582142 7-13,7-20,7-29,Int’l - 1004977 7-32
BiPAP Vision Repair Kits (Continued)
Replacement Kit Replacement Part No. Photo Page No.
Oxygen Module (OM) Manifold / Regulator Filters(x5)
Oxygen Module (OM) Manifold/Regulator Bowl
582153 7-13 1007547
582154 7-13 1007546
Oxygen Regulator/Manifold 1014434 7-32Oxygen Flowbody/PCA 1014433 7-32Oxygen Inlet Fitting (DISS) 1014805 7-32
PC Board S/N>106K ( see notes 3,4) 1004710 7-11PC/MC Upgrade PAV S/N<106K 1000356 7-33PC/MC Upgrade S/N<106K (see notes 3,4) 1004713 7-33Power Harness PC/DC S/N>106K 1004696 7-28Power Harness PSS/PC S/N>106K 1004706 7-27,7-30Power Supply Subsystem (PSS) 582145 7-26,7-27,7-30,7-38
Pressure Regulation Valve (PRV) Assembly 582147 7-29,7-35,7-39Pressure Regulation Valve (PRV) Muffler 582156 7-55Rotary Encoder 582148 7-23Rotary Encoder Knob 582157 7-17,7-54Rubber Feet 582149 7-43,7-55Service Manual 582160 Not Shown
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-8
1045049
BiPAP Vision Repair Kits (Continued)
Replacement Kit Replacement Part No. Photo Page No.
Shipping Container 1002424 Not Shown(includes all necessary inner packaging)
Test Cable(S/N <106K) (see section 8.10) 582161 7-58Test Cable (Ribbon) 1004699 7-17,7-19,7-27,
7-36,7-42
Test Cable S/N >106K (see section 8.10) 1004823 7-58
Test Orifice (0.25”) 332353 Not ShownTop Enclosure 582150 7-13,7-43Transformer Assembly 582152 7-26,7-27, 7-40
(or RS232 Ribbon Harness for S/N >106k)
(or for upgraded units)
BiPAP Vision Service Manual
7-9Chapter 7: Repair and Replacement
1045049
NOTE 1: All items have a quantity of one unless otherwise specified.
NOTE 2: For specific country AC power cord ordering information, please contactRespironics Customer Service.
NOTE 3: The original EPROM must be removed from the circuit board and installed into thenew circuit board, unless performing an upgrade to units S/N<106K. EPROMSare included.
NOTE 4: This item is either a Replacement Part or an Optional Upgrade for the unit.
NOTE 5: For units from S/N 100500 to 100999, the PSS (582145) and power wiring harness(part of 582131) must also be replaced if not already done.
NOTE 6: For units from S/N 100500 to 100999, the PSS (582145), main power switch(582141) and the power wire harness (part of 582131) must also be replaced.
NOTE 7: The Inlet filter foam strip (1004493) should also be ordered with this kit.
NOTE 8: CAUTION: Danger of explosion if battery is incorrectly replaced. Replace onlywith the same or equivalent type recommended by the manufacturer. Dispose ofused batteries according to the manufacturer’s instructions.
BiPAP Vision Repair Kits (Continued)
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-10
1045049
7.4 BiPAP Mobile Stand Repair Parts
Mobile Stand II
Replacement Kit Replacement Part No.
Mobile Stand II Caster (locking) 1001921
Mobile Stand II Casters (x3) (non-locking) 1001922
Mobile Stand II Circuit Arm Mount 1002310
Mobile Stand II Plexiglass Door 1001920
Mobile Stand II Pole 1001923
Mobile Stand II Shipping Container 1002425
Mobile Stand II Strike / Catch Kit 1002151
Circuit Support Arm Handle 1006501
Mobile Stand III
Replacement Kit Replacement Part No.
Humidifier Bracket 1005101
O2 Hose Hanger Assembly 1007903
Oxygen Analyzer Pole 1011515
Storage Compartment 1007904
Mobile Stand III Storage Tray 1007905
Mobile Stand III Shipper 1009410
Mobile Stand III Storage Tray Feet 1009745
BiPAP Vision Service Manual
7-11Chapter 7: Repair and Replacement
1045049
7.5 Replacement Identification Photos
Pressure Control Board S/N >106K (1004710)
EPROM S/N >106K (1000353) (W/ PAV 1000354)
Overview
The following identification photos are to be used as repair guidelines. Items have been identifiedfor all serial number units beginning with 100500 to present.
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-12
1045049
Note: This item is obsolete, originally P/N 582146. Replaced by 1004713 for units S/N <106001.
Pressure Air Flow Subsystem
BiPAP Vision Service Manual
7-13Chapter 7: Repair and Replacement
1045049
Top Enclosure (582150)
Grounding Post (1002902)
Inlet Filter Enclosure Assembly
(582134)
Inlet Filter Cover (1003444)
Top Cover Screws (2)
Main Power Switch (now comes with aspring loaded cover.) (582141)
Nurse Call/RemoteAlarm Connector
RS232 DiagnosticConnector
Model NumberandSerial Number
Bottom Enclosure S/N >106K
(1004700)
AC Inlet (582138)
Oxygen ModuleAssembly (English)
(582142)(Int’l 1005619)
Oxygen Inlet ( 1014805)
Oxygen ModuleManifold/Regulator Bowl (582154) (1007546)
Oxygen ModuleManifold/Regulator Filters (582153 ) (1007547 )
S/N >106000
Rear View
Power Cord Clamp (1000751)
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-14
1045049
Fuses and Voltage Selector
AC Inlet (582138) Voltage Setting
Fuses(1000749 for 100 and 120 VAC operation1000750 for 230 and 240 VAC operation)
Fuse Location
BiPAP Vision Service Manual
7-15Chapter 7: Repair and Replacement
1045049
Inlet Mesh Filter (1000747)
Inlet Filter Cover (1003444)
Inlet Filter (x6) (582101)
Inlet Filter Enclosure (582134)
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-16
1045049
Exploded View (Continued)
Circulation Fan Muffler
Circulation Fan Muffler(English 582155) (Int’l 1005618)
Screws (x4) *
Standoff(s) (x4)*
Label, Diagnostic NurseCall S/N >106K
(1004703)
* Included
BiPAP Vision Service Manual
7-17Chapter 7: Repair and Replacement
1045049
Alarm Battery (1012819)
Display Control (DC) S/N >106K (1004709)
RS232 Harness S/N >106K (1004699)
DC Power ConnectionS/N >106K
Liquid Crystal Display(582139) Located under the
DC/LCD Mounting plate
ICB Cable S/N >106K (1004695)
Rotary Encoder (582148)
DC View #1 S/N >106K
Ground Connection
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-18
1045049
LCD BacklightVoltage Connection(Connects either way)
Main Power Indicator Cable Connection (Connects either way)
DCS/LCDMounting
Bracket
ICB Cable S/N >106K (1004695)
Audible Alarm Connection
Rotary Encoder Connection
DC View #2 S/N >106K
BiPAP Vision Service Manual
7-19Chapter 7: Repair and Replacement
1045049
ICB Cable S/N >106K(1004695)
Air FlowModule
(582127)
Coiled PressureTubing
(1000752)
Audible Alarm (1000743)RS 232 Harness S/N >106K
(1004699)
Ground Wire
Main PowerIndicator Connector
Component Identification
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-20
1045049
Inlet Filter Enclosure Assembly
(582134)Blower Muffler
(582129)Oxygen Module Assembly
(English 582142)(Int’l 1005619)
Blower Assembly (582128)
Component Identification
BiPAP Vision Service Manual
7-21Chapter 7: Repair and Replacement
1045049
BlowerBlower Mounting
Brackets (x3)
Blower Vibration Isolators (x3) (1003893)
Blower Connection to PC
Heat Sink*
Dampener*
Blower Assembly (582128)
* Not sold seperately
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-22
1045049
DC SubsystemError LED
Main Power Indicator Connector
LCD / DC Cable
Keypad Cable
Ground Connection
DC Power Connector
ICB ConnectorRotary Encoder
Audible Alarm Battery
Front Panel Assembly
BiPAP Vision Service Manual
7-23Chapter 7: Repair and Replacement
1045049
DC EPROM
KeypadRibbon Cable
LCD / DC Cable
Rotary Encoder (582148)
DC Cable Connections
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-24
1045049
DC EPROM
Front View DC Subsystem (1004709, or part of 1004707, 1004714)
Error LED
BiPAP Vision Service Manual
7-25Chapter 7: Repair and Replacement
1045049
Back View DC Subsystem (1004709, or part of 1004707, 1004714)
Audible Alarm Battery
Audible AlarmConnection
Rotary Encoder ConnectionICB Connector
Power SupplyConnection
KeypadConnection
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-26
1045049
Circulation Fan (582132)
Ground Post (1002902)
RFI Filter(Part of AC Inlet)
AC Inlet (582138)
Oxygen Module Assembly
(582142)
Blower / ILFR Coupler (1003728)
AC Inlet to Transformer Connection
Oxygen Baffle (1004705)
Transformer Assembly
(582152)
Power SupplySubsystem (PSS)
(582145)
Inlet Filter Enclosure
Main Power Switch (582141)
Nurse Call/ Remote Alarm Connector (1004697)
(582134)
Component Identification
BiPAP Vision Service Manual
7-27Chapter 7: Repair and Replacement
1045049
RS 232 Harness S/N>106K (1004699)
Power SupplySubsystem (PSS)
(582145)
Main Power Switch Connection to PSS
Nurse Call / Remote Alarm Harness (1004697)
Circulation Fan (582132)
Transformer Assembly (582152)
Power Harness PSS/PC S/N >106K (1004706)
PC Subsystem
PC to DCPower Connection
Component Identification
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-28
1045049
ICB Cable S/N >106K (1004695)
RS 232 Cable S/N >106K (1004698)
Power Harness PC / DC S/N >106K (1004696)
DC Cables
BiPAP Vision Service Manual
7-29Chapter 7: Repair and Replacement
1045049
Oxygen Valve(Part of Kit 1014434)
Oxygen Module Assembly (English 582142)
(Int’l 1005619)
Oxygen to PC Ribbon Cable
Oxygen ValveConnection
Pressure RegulationValve (PRV)
(582147)
AFMThermister
Ac Inlet to Transformer Connection
In-Line FlowRestrictor Valve(ILFR) (582137)
Component Identification
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-30
1045049
PSS Subsystem (582145)
PSS to PC Power Cable(1004706)
Transformer Assembly
(582152)
Coiled Pressure Tube (1000752)
AFM to PCRibbon Cable
OM to PCRibbon Cable
RedundantPressure Sensor
Audible Alarm (1000743)
ICB Cable S/N >106K (1004695)
Error LED
Component Identification
BiPAP Vision Service Manual
7-31Chapter 7: Repair and Replacement
1045049
Oxygen Baffle (1004705)
Air Flow Module (582127)
Audible Alarm (1000743)
ICB Cable (1004695)
Transformer Assembly (582152)
Coiled Pressure Tubing
(1000752)
Component Identification
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-32
1045049
Oxygen Module Assembly (English, 582142) (Int’l 1005619)
Inlet Fitting (DISS) 1014805
Regulator/Manifold Assembly 1014434 Flow Body / PCA 1014433
BiPAP Vision Service Manual
7-33Chapter 7: Repair and Replacement
1045049
Pressure Control (PC) Subsystem* (1004710)
ILFR Valve Connector
PRV Connector Ambient Pressure SensorPatient Pressure Sensor
Circulation Fan CurrentSense Connector
Redundant PressureSensor
ICB connector
Oxygen Module Connector
EPROMError LED
AFM Connector
Power SupplyConnector
Power Supply toDC Connector
* Also part of 1004713, used to upgrade units S/N<106K 1000356, 1004714 and 1004707
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-34
1045049
Nurse Call / Remote Alarm ConnectorRS 232 Connector
Alarm PAL (582158)
RS 232 to DC Subsystem Connection
Error LEDEPROM
Main Control (MC) Subsystem* (1004711)
* Also part of 1004713, 1000356, 1004714 and 1004707
BiPAP Vision Service Manual
7-35Chapter 7: Repair and Replacement
1045049
Inline Flow Restrictor Valve (ILFR) (582137)
Pressure Regulation Valve (PRV) (582147)
Oxygen Baffle (1004705)
Component Identification
BiPAP Vision Service Manual
Chapter 7: Repair and Replacement7-36
1045049
Main Control (MC) Subsystem* (1004711)
Nurse Call / RemoteAlarm Connector
(1004697)
RS 232 Connector (1004699)
Alarm PAL (582158)
EPROM
Error LED
Battery S/N >106K (1006005)
* Also part of 1004713, 1000356, 1004714 and 1004707 used to upgrade units S/N<106K
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Air Flow Module (AFM) (582127)
Thermistor
Flow Sensor
Connects to the PC Connects to the redundantpressure sensor on the PC
Pressure Sensor
Oxygen Baffle (1004705)
Arrow towards frontof unit, gas flowdirection.
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Power Supply Subsystem (PSS) (582145)
Power Supply connection to PC Subsystem
Main PowerSwitch Connection
(582141)
TransformerConnection
Main Power LED,Connects to the Front Panel
Circulation Fan PowerConnection
Circulation Fan Current Sense,Connects to PC
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In-Line FlowRestrictor Valve(ILFR) (582137)
Pressure RegulationValve (PRV)
(582147)
Connect to PC Subsystem
Valve Identification
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Connection to PSS
Transformer Assembly (582152)
Connection to AC Inlet
Metal Retaining Plate
Top Insulation Spacer
Retaining Nut
Bottom Insulation Spacer
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Main Power Switch (582141)
Circulation Fan (582132)
Transformer Connection
Ac Inlet / EMI Filter (582138)
Grounding Stud
Bottom Enclusure S/N >106K (1004700)
Connections to MC (Nurse Call / Remote Alarm)
Connects to PSS
Connects to PSS
RS 232 Connector (1004699)
Nurse Call / Remote Alarm (1004697)
Component Identification
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Nurse Call / Remote Alarm,RS 232 Cable routing
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Back Panel, Units S/N <106001
Top Enclosure (582150)
Inlet Filter Cover (1003444) Inlet Filter Enclosure
(582134)
Main Power Switch (582141)
Circulation Fan Muffler (English, 582155) (Int’l, 1005618)
Bottom EnclosureS/N <106K
(582130)
AC Power Cord Clamp (1000751)
AC Inlet (582138)
Rubber Feet (x4) (582149)
Oxygen Module (English, 582142) (Int’l, 1005619)
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Display Control Subsystem (D/CS)Connections for S/N <106001
(582133)
Power Supply ConnectionICB Cable S/N < 106K
Audible AlarmConnection
Rotary Encoder Connection
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Display Control Subsystem (D/CS) Connections for S/N <106001
(582133) *
LCD Power Connection (Connects either way) Main Power Indicator
LED Connection (Connects either way)
ICB Cable Connection
Rotary Encoder Connection
Audible AlarmConnection
* Also could be for upgrade units S/N <106K using 1004714 or 1004707
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Display Control Subsystem (D/CS) (582133)
ICB Connector Error LED
Main Power Connector
DCS/LCD Connector
Keypad Connector
Power Connector
ICB Connector Placement for Upgraded Units
Rotary Encoder Connector
LCD Backlight Connector
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Display Control Subsystem (D/CS) (582133)
RS 232 Test Cable Connector LCD Backlight Connector (connect either direction)
EPROM (1000286 Non PAV S/N <106K) (1003524 W/PAV S/N <106K)
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Display Control Subsystem (D/CS) (582133)
LCD Backlight Connector(connects either direction)
RS 232 Test Cable Connector
Keypad Connector
Power Connections
ICB Connector placement for upgraded units(Part of upgrade kit 1004713 or 1000356, PAV)
Rotary Encoder Connector
Audible Alarm Connector
ICB Connector
Audible Alarm Battery
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Blower Muffler (582129)
Oxygen Module (582142)
Air Flow Module(582127)
Coiled Pressure Tubing (1000752)
MCS*PAS*
Power SupplySubsystem
(582145)
Blower (582128)
Bottom Enclosure S/N <106K (582130)
ICB Cable S/N <106K (582159)
* Replaced using upgrade kit 1004713, or 1000356 (PAV)
Component Identification *(S/N <106K)
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Transformer (582152)
Power Connections
MCS Error LED
Unit Outlet Pressure Sensor PAS Error LED
Patient Pressure Sensor
MCS RS 232 TestCable Connection
PAS Blower Connection
Component Identification(S/N <106K)
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Pressure Airflow Subsystem (PAS) (No longer manufactured, now part of upgrade kit 1004713 or 1000356,PAV)
Power ConnectorILFR Valve Connector
PRV Valve Connector
Circulation Fan CurrentSense Connector
Patient Pressure Sensor
AFM Connector
Oxygen ModuleConnector
ICB Cable Connector
RS 232 Connector
EPROM S/N <106K(1000286)
(1003524 W/PAV)
Error LED
Unit Outlet Pressure
Blower Connector
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Inlet Filter Foam Strip (1004493)
Inlet Filter Enclosure (582134)
Inlet Foam Strip Location
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Main Control Subsystem (MCS)
Power ConnectionError LED
RS 232 Test CableConnection
ICB CableConnection
EPROM S/N <106K (1000286) (1003524 W/PAV)
Alarm PAL
MCS to D/CS Ground Wire
Battery, Lithium (1001988)
(No longer manufactured, now part of upgrade kit 1004713 or 100356, PAV for S/N<106K)
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Front Enclosusre (582135)
Rotary Encoder Knob (582157)
Keypad(English, 582151)(Universal Symbols, 1004712)(German, 582221)
Component Identification
Note: See “Touchpad Replacement Instructions” atend of chapter, section 7.6
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Bottom Enclosure S/N >106K (1004700)
PRV Muffler (582156)
Rubber Feet (x4) (582149)
Component Identification
Bottom Enclosure S/N <106K (582130)
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LCD Assembly(582139)
Connects toDC Subsystem (Keypad)
Connects to DC Subsystem (Connects either direction)
LCD Backlight 1014432
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Blower Valve Coupler (1003728)
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Test Cable Identification *
* See Section 8.10, Test Cable Usage Definitions, for further information.
Test Cable, Units S/N < 106K ( 582161)
Test Cable, Units S/N > 106K and Upgraded UnitsS/N < 106K Hybrid (1004823)
Test Cable, Units S/N < 106K -Upgraded to Hybrid. (1004699)
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7.6 Touch Pad Replacement InstructionsReplacement Part Number: 582151ProcedureRemoved / Installed During Process:• Top enclosure• Front panel enclosure• Rotary encoder• Display / Control Subsystem-Liquid Crystal Display (D / CS - LCD) mounting plate assembly• Touch pad
Included in Kit: Touch padTools Required: Phillips screwdriver, 7/16" nut driver, Isopropyl alcohol, Cleaning cloth
Touch Pad
WARNING: Electrical shock hazard: Disconnect the electrical supply before attempting to makeany repairs to the device.
CAUTION:Electronic components used in this device are subject to damage from static electricity.Repairs made to this device must be performed only in an antistatic, ESD-protected environment.
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Step 1Removing the D / CS Touch Pad Ribbon Cable and Shielding Foil
a. Making sure the front enclosure is protected, place it face down on the work surfacewith the D / CS upwards.
b. Gently remove the ribbon cable from (J6).c. Remove the one D / CS mounting screw that has touch pad shielding foil and
ground wire under it. Locate the foil away from this connection.
Screws
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Touch Pad Replacement (Continued)
b. Hold down on the front panel enclosure, and slowly lift upwards on one of themounting plate to begin releasing the LCD from the touch pad. Continue until theplate can be removed.
NOTE: It may be necessary to use a small amount of isopropyl alcohol to assist with the touch pad removal.
D / CS LCDMounting Plate
NOTE: Place this assembly in a protected area.
Step 3Removing the Touch Pad
a. With the touch pad facing down, place a small amount of isopropyl alcohol between thetouch pad lens and the front panel enclosure at its smallest width (near the top). Tilt thefront panel enclosure slightly, and allow it to sit for approximately 10 to 15 seconds.
Step 2Removing the D / CS - LCD Mounting Plate
a. Remove the six screws securing the D / CS - LCD mounting plate to the frontenclosure.
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Touch Pad Replacement (Continued)
Apply IsopropylAlcohol as Necessary
Apply Alcohol to Front Panel enclosure
b. Gently push the touch pad away from the front panel enclosure, while adding small amountsof alcohol as required, to loosen the bonding glue. Continue slowly and carefully around thepanel opening until entire touch pad is removable.
c. Using isopropyl alcohol, clean any remaining glue from the front panel enclosure touchpad mounting surface.
Step 4Installing the Touch Pad
a. Lay the front panel enclosure face up. With respect to the front of the unit, place the leftside of the front panel enclosure slightly over the edge of the work surface.
b. After assuring that all glue from the original touch pad has been removed from the frontpanel enclosure, remove the protective paper backing from the new touch pad, includingthe clear protective coating on the LCD side of the touch pad lens.
c. Place the ribbon cables and ground shields through their appropriate slots in the frontpanel enclosure. Make sure no wiring is pinched. Slide the cables and shields throughuntil the left side of the touch pad rests (but is not secured) on the left side of the frontpanel enclosure.
d. Align the touch pad, top to bottom, and rest it in place. Observe alignment as the touchpad becomes secured to the front panel enclosure.
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NOTE:Place one hand underneath the front panel enclosure while applying any pressure, so that the curve inthe front panel is not damaged. Once on and aligned properly, apply a rotating, rubbing pressure tosecure the touch pad.
NOTE:If an alignment problem occurs, use a small amount of isopropyl alcohol to remove the touch pad. Allowto dry before trying again.
Step 5Installing the D / CS - LCD Mounting Plate
a. While placing the D / CS - LCD mounting plate on the front enclosure, ensure that thecables are properly routed. Secure the plate into position using the six mounting screws
Step 6Installing the D / CS - Touch Pad Ribbon Cable
a. With the tabs fully extended on (J6), place the ribbon cable completely into the connector. Whileapplying slight inward pressure on the ribbon cable, lock the tabs on both sides of (J6).
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Chapter 8: Testing and Calibration
8.1 Overview ..................................................................................... 8-2
8.2 Recommended Testing After Part(s) Replacement ............... 8-3
8.3 Exhalation Port Test ................................................................... 8-5
8.4 Total Operating Hours Transfer Procedure ........................... 8-8
8.5 Blower/Valve Calibration Procedure ..................................8-10
8.6 Performance Verification......................................................... 8-12
8.7 Run-In Cycle Procedure........................................................... 8-16
8.8 System Final Test ......................................................................8-18
8.9 PC or Laptop Setup Procedures ............................................. 8-37
8.10 Test Cable Usage Definitions .................................................8-40
8.11 Oxygen Flow Module Test ..................................................8-41
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Chapter 8: Testing and Calibration8.1 OverviewThe following is a summary of the testing and calibration procedures detailed in this chapter.
8.2 Recommended Testing after Part(s) Replacement
Defines the recommended testing to perform on the unit after removal andinstallation of a replacement part. The testing reflects the minimum required to verifysystem performance.
8.3 Exhalation Port Test
Characterizes the circuit by analyzing the leak rate of the exhalation port.
8.4 Total Operating Hours Transfer Procedure
Transfers the current Total Operating Hours for a unit whenreplacing the Main Control Subsystem (MC), or the memory battery.
8.5 Blower/Valve Calibration Procedure
Provides instructions for calibrating the Blower and Valves of the unitafter major component replacement.
8.6 Performance Verification
Verifies that the BiPAP Vision user interface is functioning properly. It is notintended to verify specifications, only the operational features are tested.
8.7 Run-In Cycle Procedure
This procedure is to be used after servicing the BiPAP Vision as called out in theTesting after Part(s) Replacement on page 8-3 and 8-4. The unit will cycle for one half hourwith specified operating parameters to qualify the repair after a component has beenreplaced.
8.8 System Final Test
Verifies that the Vision unit operates within specifications. The intent of thisprocedure is to ensure that the unit functions against performance specifications byverification of the internal sensor measurement’s accuracy and the unit’s capability togenerate and control the required pressures and flow rates of the various operatingmodes. User controls and alarm functions are also tested.
8.9 PC or Laptop Setup Procedures
Necessary steps to set up a PC/Laptop for testing or Vent Inop error code extraction.
8.10 Test Cable Usage Definitions
8.11 Oxygen Flow Module Test
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8.2 Recommended Testing after Part(s) Replacement
Purpose
This chart defines the recommended testing to perform on the unit after removal and installation of areplacement part. The testing reflects the minimum required to verify system performance.
1. Air Flow Module (AFM) YES YES NO YES2. Alarm “B” Option NO YES YES NO3. Blower YES YES NO YES4. Blower Muffler YES NO NO NO5. Bottom Enclosure YES YES NO YES6. Cables (any internal) NO NO YES NO7. Circulation Fan YES YES NO YES8. Display Control (DC) NO YES NO YES9. AC Power Cord (any) NO YES YES NO
10. Fan Muffler NO NO NO NO 11. Filter Enclosure YES YES YES NO 12. Filter NO NO NO NO 13. Front Panel Enclosure NO YES YES NO 14. Fuses, Domestic NO NO YES NO 15. Fuses, International NO NO YES NO 16. Hoses (any internal) YES YES YES NO 17. ICB Ribbon Cable NO NO YES NO 18. In-Line Flow Restrictor (ILFR) YES YES NO YES 19. AC Inlet YES YES NO YES 20. Liquid Crystal Display (LCD) NO NO YES NO 21. Main Control (MC) YES YES NO YES 22. Oxygen Module Assembly (OM) YES YES NO YES 23. OM Regulator Bowl NO NO NO NO 24. OM Regulator Filter NO NO NO NO 25. Main Power Switch NO NO YES NO 26. Power Supply Subsystem (PSS) YES YES NO YES 27. Pressure Control (PC) YES YES NO YES 28. Pressure Relief Valve (PRV) YES YES NO YES 29. PRV Muffler YES NO YES NO 30. Rotary Encoder NO YES YES NO
Replacement Item Run-InCycle
PerformanceVerification
Blower/Valve Cal.
SystemFinal Test
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31. Rotary Encoder Knob NO NO NO NO 32. Rubber Feet NO NO NO NO 33. Top Enclosure NO NO NO NO 34. Touch Pad NO YES YES NO 35. Transformer YES YES NO YES36. Power Line Filter NO YES NO YES37. Audible Alarm NO YES YES NO38. EPROM NO YES NO YES39. PAV / T NO YES NO YES 40. Oxygen Manifold/Regulator YES YES NO YES 41. Oxygen PCA/Flowbody YES YES NO YES
Replacement Item Run-inCycle
PerformanceVerification
Blower/Valve Cal.
Recommended Testing after Part(s) Replacement (Continued)
SystemFinal Test
8.3 Exhalation Port Test
Figure 8-1
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8.3 Exhalation Port Test
Purpose
The Exhalation Port Test characterizes the circuit by analyzing the leak rate of the exhalation port. Duringthe test, the system learns the intentional exhalation port leak over the complete pressure range. Thelearned leak value is then stored in system memory and is used to perform leak calculations and provide anaccurate display of patient leak, minute ventilation, and tidal volume in the Data Display Area. When a testis performed successfully, the Data Display shows the unintentional leak. The display will appear as “Pt.Leak” in the Data Display Area. If the test is not performed or cannot be completed successfully, the systemis unable to accurately know the intentional leak and will display the total leak value (intentional + unin-tentional). The display will appear as “Tot. Leak” in the Data Display Area.
NOTE: The Exhalation Port Test should be performed after servicing to ensure the accuracy ofestimated tidal volume and minute ventilation readings. Accurate minute ventilationreadings are necessary to ensure the accuracy of the low minute ventilation alarm whenit is set below 3 L/min.
NOTE: The Exhalation Port Test is recommended before each use, with circuit changes, withchanges in the exhalation port, or after servicing. Completing the test ensures theaccuracy of some displays and alarms.
Equipment Set-up
• First Install a 6’ smooth inner lumen tubing, then a whisper swivel, and then a pressure pick-off port onto the unit outlet.
• Connect a pressure line from the pick-off port to the pressure connection on the Vision unit.
• Occlude the outlet.
Procedure
Step 1 Plug in the power cord. The Main Power indicator will illuminate.
Step 2 Turn the main power switch to the On position and wait for the unit to complete theSYSTEM SELF TEST (internal system check). This will take approximately 5 to 15 seconds.The TEST EXHALATION PORT screen will then be displayed.
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PRESS "MONITORING" TO EXIT
Languages
Test ExhPort
Total Operating Time: 22 HRS
Step 3 Press the Test Exh Port (Test Exhalation Port) soft key. Follow the instructions that appearon the screen, then press Start Test.
Figure 8-2Exhalation Port Test Instructions
Exhalation Port Test (Continued)
NOTE: This test can be canceled at anytime by pressing the Cancel Test soft key.
EXHALATION PORT TEST
INSTRUCTIONS:1. INSTALL CIRCUIT WITH EXHALATION DEVICE.2. OCCLUDE CIRCUIT OUTLET.3. PRESS "START TEST" WHEN READY.4. KEEP TUBING OCCLUDED UNTIL TEST IS
COMPLETE.
Test ExhPort
Languages
StartTest
CancelTest
PRESS "MONITORING" TO EXIT
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d. OCCLUDED EXHALATION PORT, CHECK CIRCUIT, REPEAT TESTThe leak rate was less than predicted. Check that the exhalation port is not blocked. Replace, inorder, the PC, AFM, PRV, and ILFR. Repeat the Exhalation Port Test between each replacement.
e. PROXLINE DISCONNECTED, CHECK CIRCUIT, REPEAT TESTThe proximal pressure line is disconnected. Check that the internal and external proximal pressureline is connected and is not obstructed. Repeat the Exhalation Port Test.
f. PRESSURE REGULATION ERROR, CHECK CIRCUIT, REPEAT TESTLeak test pressures cannot be attained. Check that the internal pressure line is connected and notobstructed. Replace, in order, the AFM and PC. Repeat the Exhalation Port Test between eachreplacement.
g. INTERMITTENT EXCESSIVE FLOW, CHECK CIRCUIT, REPEAT TESTThe leak rate was intermittently high during the test. Check that the internal and external circuit isoccluded and properly sealed. Replace, in order, the PRV valve and PC. Repeat the Exhalation PortTest between each replacement.
Step 4 There are seven possible status messages that can appear depending on the outcome of theSYSTEM SELF TEST. Follow the instructions for the condition that appears.
a. TEST COMPLETEThe circuit displays normal leak conditions at the exhalation (user interface) port.
b. LOW FLOW, CHECK CIRCUIT, REPEAT TESTThe circuit displays a lower than normal leak rate at the exhalation port. Check that the vents onthe exhalation port are not blocked and that the circuit is sound. Replace, in order, the PC, AFM,PRV, and ILFR. Repeat the Exhalation Port Test.
c. EXCESSIVE FLOW, CHECK CIRCUIT, REPEAT TESTThe circuit displays a higher than normal leak rate at the exhalation port. Assure that the internalcircuit is properly assembled. Replace, in order, the PC, PRV, and ILFR. Repeat the Exhalation PortTest between each replacement.
Exhalation Port Test (Continued)
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8.4 Total Operating Hours Transfer Procedure*
Purpose
The following steps must be done to transfer the current Total Operating Hours for a unit.
Equipment
• PC / Laptop
• Test Cable (RI P/N 582161) for S/N < 106000
• Test Cable (RI P/N 1004823) for S/N > 106000 and upgraded units for S/N <106000.
Note: See Figure 8-3 and 8-4 for cable connections.
Procedure
Step 1 Power on the unit.
Note: If powering on is not possible, then an approximation will have to be made based onprevious documented hours and additional running time.
Step 2 Write down the Total Operating Hours for the unit from either the Set Up Screen or theOptions Screen.
Step 3 Using the test cable, connect a PC/Laptop to the MC. If necessary, follow the Terminal Setupguidelines in Section 8.9
Step 4 Power on and leave the unit in the Set Up Screen.
Step 5 Enter “S J O” on the terminal keyboard. This will display the “Operating Time Modify”screen.
Step 6 Follow the instructions on the screen to modify the Total Operating Time value displayed tomatch the hours written down from the unit in Step 2.
Step 7 After the time is correctly set, turn the power switch off, remove the terminal from the MC,reassemble the unit, or continue with testing process.
* This is used primarily when a Main Control Subsystem or Lithium battery is replaced.
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Figure 8-3
For Visions with S/N < 106K
Figure 8-4
For Visions with S/N > 106K
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8.5 Blower / Valve Calibration Procedure
Purpose
This procedure provides instructions for calibrating the Blower and Valves for the BiPAP Vision system.This test will take about 10 minutes or less depending on the software version.
Note: Unit must be a minimum software revision of 11.8 / 12.4 / 13.4 to successfully pass this test. Ifnecessary, upgrade unit.
Equipment (See Figure 8-3 and 8-4 for cable connections)
• Test Cable (Respironics P/N 582161) for S/N < 106K
• Test Cable (RI P/N 1004823) for S/N >106K and upgraded for units for S/N <106K
• PC / Laptop (Terminal mode)
• 0.25” test orifice (Respironics P/N 332353)
• Phillips screwdriver
CAUTION: Electronic components used in this device are subject to damage from static electricity.Use and follow appropriate electro-static discharge (ESD) procedures.
Procedure
Step 1 Verify that the power to the BiPAP Vision is turned Off.
Step 2 For S/N < 106000, remove the top enclosure.
Step 3 Depending on the test cable needed, connect one side to the (J3) connector on the PressureControl Subsystem (PC), or a standard serial cable to the PC connector, and the other side tothe PC or Laptop.
Step 4 Install the test orifice and pressure line to the Vision outlet. Plug in and turn on the unit. Turnon the PC/Laptop.
NOTE: It may be necessary to refer to the “PC/Lap Setup Procedure” found in Chapter 8 toproperly set the parameters on the PC or Laptop for Hyperterminal application.
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Step 5 Wait for the Test Exhalation Port/Language screen to appear. Do not press Monitoring.
Step 6 Assure that the test orifice and the PRV exhaust are not obstructed.
Step 7 Type the calibration start code: SJB, on the terminal with no carriage return.
NOTE: Insure that the calibration start codes are in all capital letters. These will not display onthe PC or PC/Laptop.
Step 8 Wait for the calibration process to complete. The terminal will stop updating information andthe cursor will blink when the process is finished. “Valve Calibration Successful” will bedisplayed. (See below for a description of the Calibration Sequence Summary.)
NOTE: If calibration is unsuccessful, try the test again. If it fails a second time, follow the guidelines on the screen for suggested failure information.
Step 9 Turn the unit Off and remove the power cord.
Step 10 Unplug the test cable from unit unless further testing is required.
Step 11 Remove the test orifice.
Step 12 Install the top enclosure, unless further testing is required.
Step 13 If necessary, carefully position the unit on its side and install the PRV muffler enclosure
Step 14 If necessary, set the unit upright.
Step 15 Test complete.
Calibration Sequence Summary
The first four states are for blower calibration. The blower DAC voltage is increased while the pressure andblower speed are monitored to determine the slope and intercept.
The next two states independently “warm up” the ILFR and PRV valves and then collect four sets ofoperating data on each to use to determine an average value.
All of this information is stored in memory and is used to ensure that the blower and the valves are able tomeet the specified requirements.
Blower / Valve Calibration Procedure (Continued)
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8.6 Performance Verification
Purpose
This procedure confirms that the ventilator is functioning properly. It is not intended to verify specifica-tions; only operational features are tested.
Equipment
• Test orifice (P/N 332353)
• Pressure tubing
• Smooth inner lumen tubing
• Whisper swivel II (P/N 332113)
Procedure
Step 1 First connect the smooth inner lumen tubing to the unit outlet then the whisper swivel andfinally the test orifice. Connect the pressure tubing from the BiPAP Vision to the test orifice.
NOTE: If the Vision unit loses power, and power is restored in less than 10 seconds, the unitwill return to operation at the same settings that were in effect before power was lost.
Step 2 Turn the unit on. When the Test Exhalation Port/Language Screen is displayed, remove theAC power cord from the rear of the unit. Verify that the Ventilator Inoperative visual (wrenchicon) and the audible alarm is activated. Turn the unit off. Verify that the audible and visualalarms are no longer active.
Step 3 After 15 seconds or more, reinstall the AC power cord, and switch the unit on.
NOTE: For software versions 11.2 and higher, the “Loss of AC Power” symbol will begin flashingin the display area. Press the Alarm Reset to clear and continue.
Perform the Exhalation Port Test as described in Section 8.3. (After successful completion ofthe test, press the MONITORING hard key to proceed to the Monitoring Screen.)
Step 4 Press the OPTIONS soft key to access the Options Screen. If an alarm is active, press theReset Hard Key.
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Step 5 Press the TEST ALARMS soft key to verify that both the audible tone and the alarmmessages activate for all available alarms. The Ventilator Inoperative and Check Ventilatoricons should illuminate during the test. The Vision front panel should look like Figure 8-2(O2 Flow, Lo MinVent, Hi Rate, and Lo Rate appear if the oxygen module and optionalalarms are installed).
NOTE: Each alarm function has both an audible and visual component. Verify that bothcomponents are active during the alarm test. If either component is not active, have theunit serviced.
Step 6 Press Monitoring. If the CPAP or PAV/T mode is active, press the MODE hard key, select theS/T soft key, and set the parameters as shown below. Activate the new mode. If the S/T Modeis active, press the MONITORING hard key then press the PARAMETERS hard key. In eithercase, set the parameters as follows:
IPAP = 15 cm H2O
EPAP = 5 cm H2O
Rate = 15 BPM
Timed Insp = 1.0 sec
IPAP Rise Time = 0.1 sec
Figure 8-5 Alarm Test Screen
(Oxygen and Optional Alarm Module Installed)
Performance Verification (Continued)
Illuminated
Alarm Messagesin Mode/Message
Area
P (cm H2O)
Vol (ml)
Flow (L/min)
OPERATING IN: S/T
TOTAL OPERATING TIME: 50 HRSPRESS "MONITORING" TO EXIT
ErrorMessages
Time at P49
Reset
TestAlarms
Brightness
Contrast
Invert
hrs
ALARMO2 FlowLo MinVentHi RateLo Rate
Hi PLo PApneaProxLine Disc
Low Leak
P Regulation
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Step 7 Press the ALARMS hard key and set the following alarm parameters.
Hi P = 20 cm H2O
Lo P = 10 cm H2O
Lo P Delay = 20 sec
Apnea = Disabled
If you have the optional Alarm Module, set the following additional alarm parameters.
Lo MinVent = Disabled
Hi Rate = 40 BPM
Lo Rate = 10 BPM
Step 8 Press the MONITORING hard key to return to the Monitoring Screen. Verify the followingparameters from the Monitoring Screen. (visual inspection)
• The Rate soft key indicator flashes when each timed breath is activated.
• The timed breath is approximately 1 second in duration.
• The IPAP during a timed breath is 15 cm H2O.
• The EPAP during a timed breath is 5 cm H2O.
• The Timed Breath Rate is 15 BPM as indicated in the Timed Breath Indicator display.
Step 9 Occlude the test orifice for a few seconds. While viewing the Vision Pressure waveform, createa small leak at the test orifice to simulate a spontaneous trigger. This process may have to berepeated a few times. Verify that the unit cycles to IPAP and that the Rate Indicator did notflash. After the breath is triggered, unocclude the test orifice.
Step 10 Press the ALARMS hard key to display the Alarms Screen.
Step 11 Select the Hi P soft key and adjust the parameter to 10 cm H2O. Wait for the audible andvisual alarms indicating a High Pressure alarm. Return the Hi P parameter to 20 cm H2O andpress the Alarm Reset hard key to remove the alarm message.
Step 12 Open the circuit to atmosphere for approximately 20 seconds to verify the following audibleand visual alarms.
• The disconnect alarm is activated after a few seconds. Press the alarm silence button andcontinue.
• The Lo P Alarm is activated.
Occlude the patient outlet on the circuit and press the Alarm Reset hard key to clear both theaudible and the visual alarms.
Step 13 Select the Apnea soft key and adjust the parameter to 20 sec. Maintain the occlusion of thepatient connection for a minimum of 20 seconds to verify that the audible tone and the ApneaAlarm Message are activated. Adjust the Apnea setting to the Disabled setting. Press theAlarm Reset key to clear the visual alarms.
Step 14 Test complete.
Performance Verification (Continued)
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BiPAP Vision Performance Verification/Screening Data Sheet
Serial Number Service Notification(Respironics use only)
Model Number Total Operating Time
Purpose:
This data sheet is to be used in conjunction with the BiPAP Vision PerformanceVerification. It should also be used whenever a screening procedure is required on theBiPAP Vision.
Results:
Test Step Pass Fail
Ventilator Inoperative Alarm 2
Exhalation Port Test 3
Test Alarms 5
Parameters From Monitoring 8Screen
Spontaneous Breath 9
High Pressure Alarm 11
Low Pressure Alarm 12
Apnea Alarm 13
Tested By: (print) Tested By: (signature) Date
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8.7 Run-In Cycle Procedure
Purpose
This procedure is to be used after servicing the BiPAP Vision as called out in the Recommended Testingafter Part(s) Replacement Chart in section 8.2. The unit will cycle for one half hour, with specified operat-ing parameters, to qualify the repair after a component has been replaced.
Equipment / Materials
• 0.25” test orifice (Respironics P/N 332353)
• pressure tubing
Procedure
Step 1 Connect the 0.25” test orifice (Respironics P/N 332353) to the outlet port, and the pressuretubing from its port to the pressure input on the BiPAP Vision.
Step 2 Connect the power, turn the unit On, and set up the following parameters in the S/T Mode.
IPAP = 40 cm H2O
EPAP = 4 cm H2O
Rate = 20 BPM
Timed Insp = 0.5 sec.
IPAP Rise Time = 0.1 sec.
Step 3 Set the following alarm parameters:
Hi P = 50 cm H2O
Lo P = Disabled
Lo P Delay = 60 sec.
Apnea = Disabled
If the unit has the optional Alarm Module, and/or optional Oxygen Module set the followingadditional parameters:
Lo MinVent = Disabled
Hi Rate = 50 BPM
Lo Rate = 4 BPM
%O2 = 21%
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Step 4 Return to the Monitoring screen and observe that the display values match the set values.
Step 5 Run the unit for one half hour with the above settings.
Step 6 Verify that the display values match the set values and that no alarms occurred during thistime period. If a problem exists, follow the appropriate Troubleshooting Flow Chart inChapter 6 and perform the Run-In Cycle Procedure again before proceeding.
Step 7 Test Complete.
Run-In Cycle Procedure (Continued)
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8.8 System Final Test
Purpose
This procedure will verify that the Vision unit operates to specifications. The intent is to ensure that theunit functions against performance specifications by verification of the internal sensor measurement’saccuracy, and the unit’s capability to generate and control the required pressures and flow rates of thevarious operating modes. User controls and alarm functions are also tested. Below are the major activitiesperformed within this test procedure.
• Set up the Unit for Test • Verify Pressure Accuracy
• Measure Flow Accuracy • Measure Dynamic Pressure Regulation
• Measure S/T Performance • Verify Oxygen Module Operation (if installed)
• Verify Options, Controls, and Alarms • Verify PAV/T Mode (if installed)
• Nurse Call/Remote Alarm (if installed) • Earth Restance and Leakage Current (Optional)
Data and other various information is to be recorded on the System Final Test Data Sheet.
Equipment
• Flexible, smooth inner lumen tubing (P/N 301016)
• Flowmeter (Appendix A)
• Manometer (Appendix A)
• PC/Laptop (Appendix A)
• Mechanical lung (Appendix A)
• Medical grade Oxygen and regulator (for testing of optional oxygen module only)
• Oxygen analyzer (for testing of optional oxygen module only - Appendix A)
• Variable flow restrictor (adjustable valve) (P/N 1006120)
• Whisper swivel (P/N 332113)
• Phillips screwdriver
• Pressure tubing
• Safety analyzer (Appendix A)
• Test cable (P/N 582161 for serial numbers 105999 and less, P/N 1004823 for serial numbers106000 and higher or upgraded units).
• Multiple outlet power strip
• Plug, cap, or stopper
• Pressure pick-off port (02 port, P/N 312710)
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CAUTION: Static sensitive components. This procedure must be performed at an ESD approvedworkstation.
NOTE: Only properly trained service personnel are permitted to perform this procedure.
Initial Equipment Setup(May vary according to equipment used) (Locally sourced flow restrictor)
Flow Restrictor (1006120) Figure 8-6 Certifier FlowInitial Equipment Setup Analyzer (1012598)
Procedure
A. Connect Unit to Test Equipment
Step 1 Remove the top enclosure.
Step 2 Connect the Test Cable from the PC board (J3), or the Test Cable connector labeled PC, to the PC/laptop com port.
Step 3 Plug in the AC power cord and verify the MAIN POWER indicator is lit.
System Final Test (Continued)
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Step 4 Connect the patient tubing to the outlet of the unit. Place a pressure pickoff port on the other end andthen connect this to the Flowmeter. Using another piece of patient tubing, connect the outlet of theflowmeter to the restrictor valve. Adjust restrictor valve to allow for a small amount of circuit leak.Refer to figure 8-3.
Step 5 Using a Tee fitting, connect the Manometer, the pressure pickoff port, and the Vision pressure porttogether.
B. Turn on Unit
Step 1 After the System Self Test is complete, record the Total Operating Time shown on thedisplay shown at the bottom of the Test Exhalation Port/Language screen.
Step 2 Press MONITORING, then press Options.
Step 3 Verify that Brightness and Contrast can be controlled by pressing the appropriate keyand turning the adjustment knob. Then adjust both of these for an acceptable display.(The Brightness has a small control range, it will not have much affect on the screen).
Step 4 Press MONITORING to exit.
C. Set Up Alarms and Scales
Step 1 Press ALARMS.
Step 2 After selecting the desired alarm, rotate the adjustment knob, and set each alarmaccording to the following:
Step 3 If ALARM MODULE B is installed, set the alarms as listed below (they will bedisplayed on the right side of the alarms screen).
60
Hi P
Apnea
Lo P
Lo P Delay
50
Disabled
Disabled
VALUEALARM
Lo Min Vent
High Rate
Low Rate
Disabled
4
VALUEALARM
System Final Test (Continued)
50
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Step 4 Press SCALE. Select the desired scale then rotate the adjust knob . Set each to thefollowing:
Step 5 Press MONITORING to exit.
D. Set CPAP Pressure
If the unit is in CPAP mode:
• Press PARAMETERS
• Press Set CPAP and adjust the pressure to 5 cm H2O
If the unit is in S/T mode:
• Press MODE then CPAP.
• Press Set CPAP and adjust the pressure to 5 cm H2O.
• Press Activate New Mode to enable.
If the unit is in PAV/T mode:
• Press MODE then CPAP.
• Press Set CPAP and adjust the pressure to 5 cm H2O.
• Press Activate New Mode to enable.
Step 1 On the PC/Laptop type, in sequence, the capital letters SJL to view the system parameters of the Vision unit being tested. Note that only the blinking cursor will be displayed.
(If required, use the PC/Laptop Setup Procedure found in Chapter 8)
100 L/min.
P
Time Base
VolFlow
45 cm H2O
1500 ml
9 sec.
VALUESCALE
System Final Test (Continued)
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NOTE: Lo Rate alarm will sound during this test. Press ALARM SILENCE to temporarilycancel.
NOTE: Unit may oscillate when no flow is present. Open the flow restrictor slightly until itstops, then slowly close the valve.
NOTE: After a period of time, the unit will automatically switch to MONITORING. PressPARAMETERS to return to the parameters screen for making unit adjustments andviewing the displays listed below.
E. Pressure Accuracy
Step 1 Adjust the flow restrictor for 0 (+0.5) LPM on the flowmeter.
Step 2 Record the following unit values on the data sheet:a) Set pressure value from Vision display.b) Outlet pressure value from Vision display (Bottom number while in parameter)c) “Unit Outlet Pressure” on PC/Laptop.d) “Patient Pressure” on PC/Laptop.e) Manometer pressure
Step 3 Verify all pressure readings are within specification (i.e. ± 2 cm H2O of theManometer reading).
Step 4 Set the unit pressure for 10 cm H2O and repeat steps 2-4.
Step 5 Set the unit for a pressure of 20 cm H2O, adjust the flow restrictor to 30 (± 3) LPMand repeat steps 2-4.
F. Flow Accuracy
Step 1 Leave the CPAP pressure set to 20 cm H2O.
Step 2 Set the flow restrictor for 0 LPM (+0.5) flow rate.
Step 3 Record the flow meter reading.
Step 4 Record the COMPENSATED TOTAL FLOW from the PC/Laptop.
Set Pressure set
cm H2O
CPAP
Outlet Pressure
5
5
System Final Test (Continued)
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Step 5 Verify the compensated total flow values are within specification.
Step 6 Set the flow restrictor for 10, 60, and 120 LPM (± 1 LPM) and repeat steps 3-5.
Step 7 While at 120 LPM, verify the pressure is 20 cm H2O ± 2 cm H2O.
G. Dynamic Pressure Regulation
Step 1 Turn the unit Off.
Step 2 Disconnect the flow restrictor from the flow meter.
NOTE: The test lung should not be connected at this time.
Step 3 Connect a whisper swivel to the patient tubing at the output of the flow meter and plugthe end. Turn the unit On. Wait for the Test Exhalation Port Screen to appear.
Step 4 Press Test Exh Port then Start Test. Follow the on screen instructions as appropriate until“TEST COMPLETE” is displayed.
NOTE: Do not block the slots on the Whisper Swivel while the Exhalation Port Test is inprogress.
Step 5 Press MONITORING to exit then press PARAMETERS.
Step 6 Ensure that the unit is still in CPAP mode, set at 20 cm H2O.
Step 7 Remove the plug and connect the test lung. (Compliance set to 0.05, Parabolic ResistorRP 20). See Figure 8-7 for setup instructions.
Step 8 Press MONITORING and verify that the unit is in “Waveform” display.
Step 9 Manually operate the test lung to create a uniform waveform on the Vision flow displaywith peaks approaching 100 L/Min and a rate of approximately 30 BPM (one every twoseconds). While doing this, observe the manometer reading.
Step 10 Verify the manometer reading to be within ± 2 cm H2O of the unit’s set value.
System Final Test (Continued)
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Figure 8-7
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H. S/T Performance
Step 1 Press MODE, then S/T. Leave the test lung connected.
Step 2 Select and set the following.
• IPAP = 35 cm H2O
• EPAP = 5 cm H2O
• Rate = 10 BPM
• Timed Insp = 2.5 sec
• IPAP Risetime = .05 sec
Step 3 Press Activate New Mode when ready to continue. Allow the unit to cycle a few times.
Step 4 Verify that the unit is cycling between low and high pressure by observing thewaveforms on the Vision pressure display.
Step 5 Verify the Manometer readings for IPAP pressure and EPAP pressure are within± 2 cm H2O of their settings.
Step 6 Record the BPM. Acceptance range is 9.3 to 10.8 BPM.
I. Options and Controls
Step 1 Press MONITORING then press Options.
Step 2 Press Invert. Verify function, and press again to return.
Step 3 Press Bar Graph. Verify that the screen displays bar graphs. Press again to return to waveform.
Step 4 Press Test Alarms. An audible tone should occur along with alarm messages displayed briefly atthe top of the screen. The Check Vent and Vent Inop symbols will light.
Step 5 Press Error Messages. Observe and record any displayed messages. Then press ClearError Messages.
Step 6 If desired, press the key for Time at P to reset.
Step 7 Press System Info and record the software version, if the Oxygen Module is installed, andwhich Alarm Module is installed.
System Final Test (Continued)
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Step 8 Press MONITORING.
Step 9 Press FREEZE/UNFREEZE and observe that the graphic displays have stopped updating.Press FREEZE/UNFREEZE again to resume.
Step 10 Press SCALE. Press P and change the scale by rotating the knob and observe a change inthe displayed waveform. Set back to 45 cm H2O. Press MONITORING to exit.
J. Alarms
Step 1 Disconnect the manometer tubing from the Vision Pressure Port. In a few seconds, an alarmwill sound and ProxLine and / or Lo P Disc will be displayed in the Alarm messagewindow at the top of the screen.
Step 2 Replace the tubing and the alarm will be silenced. Press ALARM RESET and the alarm willreset.
Step 3 Pull the AC power cord from the unit. An alarm should sound and the “wrench” icon willlight.
Step 4 Turn the unit Off, wait for the alarm to stop and then wait 10 seconds minimum.
Step 5 Plug the AC power cord into the unit and turn the unit On.
Step 6 Verify that the unit powers up without alarming.
NOTE: For software versions 11.2 and higher, the “Loss of AC Power” indication will be flashing in thedisplay area. Press the Alarm Reset to clear and continue.
Step 7 Turn off the unit.
System Final Test (Continued)
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BiPAP Vision Oxygen Module Testing for S/N 1007401-108343Note: This test should only be performed once for affected units. If the Oxygen Module has been replaced with a new type, or if your unit does not have a serial number on the oxygen module label, this test does not need to be performed.
Purpose:
1. To perform an additional test on BiPAP Vision units from serial number 107401 to 108343(inclusive). This procedure must be done the first time a Vision that falls within the above listedserial number range is returned for service for any reason. This procedure is to be performedafter the unit passes system final test found in the service manual.
2. This procedure must also be performed on any Oxygen Module repair kit from serial number300000 to 301249 (inclusive) that has been installed into any unit. The serial number is locatedon the cover. Repair parts 582142 and 1004977 are made up of these serial numbers, along withthe production units listed above.
This test will verify the ability of the oxygen delivery subassembly to adequately supply the required flowneeded to yield a specified oxygen concentration at the maximum unit flow rate. Some of these may havehad a vendor assembly problem. Any faults will require the replacement of the Oxygen Module assembly.
Test Equipment:Same as used with oxygen testing found in step K of the System Final Test.
Test Setup:See figure 8-8, except substitute the flow restrictor in the circuit for the test lung. Begin with a small leak.
Procedure:1.) Turn the unit on.2.) After the System Self Test completes, press MONITORING.3.) Press PARAMETERS button and set the following unit parameters:
IPAP = 40 cm H2OEPAP = 20 cm H2ORATE = 10 BPMTIMED INSP. = 3.0 secIPAP RISETIME = .05 secO2% = 21%
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4.) Slowly open the flow restrictor and verify the flowmeter reads a minimum of 130 LPM for fourconsecutive breaths during the IPAP portion of the cycle. If the unit activates the “Disconnect”alarm, it may be necessary to adjust the flow restrictor valve to a lower flow and slowly re-open toreach this flow rate.
5.) Set the O2% parameter to 100% and wait for oxygen analyzer reading to stabilize.
6.) For the unit to pass, the oxygen analyzer reading must remain between 90% and 109% inclusive forfour consecutive breaths. If any unit fails, the Oxygen Module subassembly must be replaced and theunit retested.
7.) When complete, set the unit parameters as follows: IPAP = 15 cm H2O
EPAP = 5 cm H2ORATE = 10 BPMTIMED INSP. = 1.0 secIPAP RISETIME = .05 secO2% = 21%
8.) Press MONITORING button.
9.) Close the oxygen tank valve.
10.) Turn power off and disconnect test equipment.
11.) Test Complete.
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K. Oxygen Module OperationNote: To perform this test it is necessary that the Vision unit being tested have at least 11.8 / 12.4 / 13.4 software. Ifyour Vision unit has earlier software, it is mandatory that it be upgraded before performing this test.
Note: See Figure 8-8 for assistance in connecting oxygen analyzer.
WARNING: Oxygen supports combustion. Do not use oxygen while smoking or in the presence of an openflame.
WARNING: Never use the analyzer to measure gas with a high oxygen content following use on air with an oilvapor content. The oil vapor will contaminate the tubing and may result in a fire on contact withhigh oxygen levels.
Oxygen Module Test Procedure
Step 1Prior to performing this test, a visual inspection should be made of the internal components of theoxygen delivery system including tubing, to ensure that there are no faulty items.
Step 1A Connect the 6 foot smooth inner lumen tubing from the outlet of the Vision, to the Whisper Swivel,then to a pressure pick-off port (O2 port) and then to the TTL Lung (or equivalent). A small length oftubing (approximately 6 inches) may be needed between the pressure pick-off port and the test lung.
Connect the oxygen analyzer cell in the patient circuit.Put the pressure tubing from the pick-off port to the unit’s patient pressure connection.
Or, Using a “T” connector, connect the pressure pick-off port, the unit’s patient pressure connectionand the oxygen analyzer inlet together, whichever applies.
Set the test lung to have a compliance of 0.04 and a parabolic resistance of 20.
Step 2 Turn on the Vision unit.
Step 3 On the unit, press Parameters and set the following unit parameters.
IPAP = 20 cm H2OEPAP = 4 cm H2ORATE = 15 BPMTimed Insp. = 1.0 secIPAP Risetime = .05 secO2% = 21%
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Figure 8-8
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Step 4 Press Monitoring. Ensure that the tidal volume reading on the Vision (Vt) is at 500 ml, +/- 20 ml (480 to520 ml). If not raise or lower the IPAP pressure until the proper tidal volume reading is obtained.
Step 5 Connect the O2 line to the Oxygen Module. Open the O2 cylinder valve. Ensure that the O2 regulatoris set at 50 psi.
Step 6 Wait for the Oxygen Analyzer to stabilize and verify that the reading is 18% to 24%.
Note: Readings should be stable after 8 to 10 breaths. Some variance in the reading may occur,depending on the quality of the analyzer being used.
Step 7 Press Parameters then set % O2 and adjust for 30% O2 level. Wait for the Oxygen Analyzer to stabilizeand verify that the reading is between 27% and 33% (inclusive). If the tidal volume reading on theVision falls out of the acceptable range, adjust the IPAP pressure until the tidal volume falls within theacceptable range before taking the reading.
Step 8 Set the O2 to 100%.
Step 9 Close the O2 cylinder valve. Disconnect the Oxygen hose from the back of the Vision.
Step 10 The unit should alarm for no O2 Flow at 15 Breaths or less.
Step 11 Reconnect the Oxygen hose to the back of the Vision and Open the O2 cylinder valve, set the O2 to40% and press Alarm reset. Verify that no alarms exist after 8 breath cycles.
Step 12 Wait for the Oxygen Analyzer to stabilize and verify that the reading is between 36% and 44%(inclusive). If the tidal volume reading on the Vision falls out of the acceptable range, adjust the IPAPpressure until the tidal volume falls within the acceptable range before taking the reading.
Step 13 Set the unit for 60% O2. Wait for the Oxygen Analyzer to stabilize and verify that the reading isbetween 54% and 66% (inclusive). If the tidal volume reading on the Vision falls out of the acceptablerange, adjust the IPAP pressure until the tidal volume falls within the acceptable range before takingthe reading.
Step 14 Set the unit for 80% O2. Wait for the Oxygen Analyzer to stabilize and verify that the reading isbetween 72% and 88% (inclusive). If the tidal volume reading on the Vision falls out of the acceptablerange, adjust the IPAP pressure until the tidal volume falls within the acceptable range before takingthe reading.
Step 15 Set the unit for 100% O2. Wait for the Oxygen Analyzer to stabilize and verify that the reading isbetween 90% and 109% (inclusive). If the tidal volume reading on the Vision falls out of the acceptablerange, adjust the IPAP pressure until the tidal volume falls within the acceptable range before takingthe reading.
Step 16 Close the O2 cylinder valve. Disconnect the O2 input line.
NOTE: If O2 Module Test Fails, perform the “Oxygen Flow Module Test” found in section 8.11. Then re-run step K above.
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NOTE: No further testing of the PAV/T mode is needed since the functioning of the PAV/Tmode is directly linked to the S/T mode through software. The S/T specificationswere verified earlier in the system final test.
Step 4 Turn off the unit, disconnect the test circuit, and remove the power.
Step 5 Install the top enclosure.
M. Earth Resistance
Step 1 Measure and record the earth resistance value. Test current is 25 amps. The value must beless than 0.10 Ohms (W) to pass.
N. Earth Leakage Current
Step 1 Measure and record the Normal Pole, No Earth, L2 earth leakage current. The value mustbe less than 300 microamps to pass.
Step 2 Measure and record the Reverse Pole, No Earth, L2 earth leakage current. The value mustbe less than 300 microamps to pass.
Step 3 Measure and record the Reverse Pole, No Earth, No L2 earth leakage current. The value must be less than 1,000 microamps to pass.
Step 4 Measure and record the Normal Pole, No Earth, No L2 earth leakage current. The value must be lessthan 1,000 microcamps amps.
System Final Test (Continued)
L. PAV / T mode (if installed)
Step 1 Select Mode.
Step 2 Select PAV/T.
Step 3 Activate the PAV/T mode and verify the mode features are displayed on the screen and thatno errors or alarms occur.
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Note: Refer to chapter 3 of this manual for details of the operation of this feature.
Purpose:
This test verifies the operation of the Nurse Call/Remote Alarm output connector on the rear panel of the BiPAPVision unit. This is an optional test and is provided to use as specified by internal protocol. The option 1,2 and 3tests can be performed independently or as a whole, depending on requirements. The unit is shipped from the factoryset at the option 2 setting.
Equipment:
Fluke DVM, or equivalent0.25” Test Orifice (p/n 332353), or occluded patient circuit
Jumper Location Photo: JP2 JP1
Option 1 Test (Remote Alarm)
1. JP1 and JP2 on the MC board are set at 2,3.
2. Using a DVM and the unit turned off, measure the continuity across the High and Low of the Nurse Call/Remote Alarm output connector. Value should be approximately 48.6K to 53.7K.
3. Place the test orifice on the unit. Turn the Vision on and activate any patient alarm. (For example, the Apneaalarm could be set to 20 seconds)
4. Measure the continuity on the same connector and it now should be an open circuit.
5. Turn unit off.
System Final Test (Continued)O. BiPAP Vision Nurse Call / Remote Alarm Feature Testing ( for units s/n greater than106000 only). (optional test)
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Option 2 Test (Nurse Call, normally closed setting)
1. JP1 on the MC board is set at 2,3. JP2 is set at 1,2.
2. Using a DVM and the unit turned off, measure the continuity across the High and Low of the Nurse Call/Remote Alarm output connector. A closed circuit should be measured.
3. Place the test orifice on the unit. Turn the Vision on and activate any patient alarm (For example, the Apneaalarm could be set to 20 seconds).
4. Measure the continuity on the same connector and it now should be an open circuit.
5. Turn unit off.
Option 3 Test (Nurse Call, normally open setting)
1. JP1 and JP2 on the MC board are set to 1,2.
2. Using a DVM and the unit turned off, measure the continuity across the High and Low of the Nurse Call/Remote Alarm output connector. An open circuit should be measured.
3. Place the test orifice on the unit. Turn the Vision on and activate any patient alarm (For example, the Apneaalarm could be set to 20 seconds).
4. Measure the continuity on the same connector and it now should be a closed circuit.
5. Turn unit off.
Upon completion, set the unit to the desired option.
Q. Final Test Data Sheet
Step 1 Sign and date completed Final Test Data Sheet.
System Final Test (Continued)
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Serial Number Model NumberTotal Operating Time Service Notification
Power Indicator and LCD Controls Step Control Pass FailA-3 Power IndicatorB-3 BrightnessB-3 Contrast
Pressure Accuracy (see step E-3 for guidlines) Step Pressure Set Outlet Unit Patient Manometer Spec Pass FailE-2 5 cm H
2O +/- 2 cmH
2O
E-4 10 cm H2O +/- 2 cmH
2O
E-5 20 cm H2O +/- 2 cmH
2O
Flow Accuracy Step Flow Setting Flowmeter Compensated Pressure Specification Pass Fail
Total FlowF-2 to 0 LPM -5 to 5 LPMF-5F-6 10 LPM 4.2 to 15.8 LPMF-6 60 LPM 50.2 to 69.8 LPMF-6 120 LPM 105.6 to 134.4 LPMF-7 120 LPM 18.0 to 22.0 cm H
2O
Dynamic Pressure RegulationStep Test Pass FailG-4 Exhalation PortG-9 Flow WaveformsG-10 Manometer Reading (Spec = +/- 2 cm H
2O)
S/T PerformanceStep Test Reading Specification Pass FailH-4 Cycling VisualH-5 IPAP/EPAP +/- 2 cm H
2O
H-6 BPM 9.3 to 10.8 BPM
BiPAP Vision Final Test Data Sheet
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Options and Controls Error Messages System InformationStep Pass Fail Step Type Codes Step Item Info.I-2 to I-10 I-5 Error I-7 Software Version
I-5 MCS I-7 Oxygen ModuleAlarms I-5 PAS I-7 Alarm ModuleStep Pass Fail I-5 DCSJ-1 to J-6
Oxygen Module (if installed)Step Oxygen Set Point Oxygen Analyzer Specification Pass FailK-6 21% 18.0 to 24%K-7 30% 27.0 to 33%K-10 Alarm ActivatesK-12 40% 36 to 44%K-13 60% 54 to 66%K-14 80% 72 to 88%K-15 100% > 90%
PAV/T Mode (if installed) Step Pass FailL-3
Earth Resistance and Leakage Current (Optional)Step Test Reading Specification Pass FailM-1 Earth Resistance < 0.100 OhmsN-1 Norm. Pol, No Earth, L2 < 300 microampsN-2 Rev. Pol, No Earth, L2 < 300 microampsN-3 Rev. Pol, No Earth, L2 < 1,000 microampsN-4 Norm Pol, No Earth, No L2 < 1,000 microamps
Nurse Call/Remote Alarm (optional test for S/N > 106000)Step Pass Fail
P
Testing Verification
Tested By: (Full Signature) Date
System Final Test (Continued)
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8.9 PC / Laptop Setup Procedure
Purpose
This procedure is to be used to set up the PC / Laptop required for testing and troubleshooting of the BiPAPVision.
Note: The Vision requires no special data acquisition software. All necessary software is contained within the unit.
Equipment
PC/Laptop Computer
Serial Cable
Test Cable for serial number 105999 and lower (RI P/N 582161)
Test cable for serial numbers 106000 and higher (RI P/N 1004823), or upgraded hybrid units.
Test cable for upgraded hybrid units also required (RI P/N 1004699)
Note: For any unit 105999 and lower that has had a new MC board installed, test cable 1004823 will be used. Test cable 582161 will still need to be used on the DC board.
Equipment Setup
Step 1 Connect one end of the test cable to the RS-232 communications port on the PC/laptop.
Note: When connecting to a PC/Laptop, the 9 pin to 25 pin connector supplied with the test cable 582161 is not required.
Step 2 For S/N 105999 and lower: Connect the proper end of the test cable (582161) to the desiredsubsystem: (J3) on the Pressure Control (PC) and Main Control (MC) or (J5) on the DisplayControl (DC).
For S/N 106001 and higher: Connect the other end of the test cable (1004823) to the rear panelof the Vision and connect a standard computer cable to the desired selection.
For upgraded hybrid units connect ribbon cable (1004699) to the desired selection of test cable(1004823) .
Step 3 Turn on the PC / Laptop.
Operating System Setup
A. Microsoft Windows® with Hyperterminal.
Step 1 Open the following:StartProgramsAccessoriesHyperterminalHyperterminal
Step 2 From Connection Description, name the file if it is to be saved, select the umbrella with phoneicon, then click OK.
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Step 3 In Connect To, select COM1 in Connect Using, then click OK.
Step 4 In COM1 Properties, Port Settings, set the following:
Bits per Second; 19,200Data Bits; 8Parity; NoneStop Bits; 1Flow Control; Xon / Xoff.
Step 5 Click OK to activate the settings. At this point, a blinking cursor will appear on the screen.
Step 6 If necessary, check the ASCII settings. Go to File, Properties, Settings, ASCII Setup.
Step 7 Enter the appropriate command for the desired selection below. No typed letters will appearon the PC or Laptop. Data will appear after the code is entered.
Step 8 If screen rolling go to: File, Properties, Settings, Emulation, VT52, OK
Note: For an existing Vent Inop condition, the MC and DC will output full screens of information.The PC only outputs one line of error code information. No command and needs to be entered.During normal operation, the full command needs to be entered.
B. Microsoft Windows® V. 3.1
Step 1 From Program Manager, open Accessories.
Step 2 From Accessories, open Terminal.
Step 3 Under Settings, open Terminal Emulation then select DEC VT-52, and click OK.
Step 4 Again under Settings, open Terminal Preferences then set the following:
Line Wrap; OnColumns; 80Cursor; Block, BlinkShow Scroll BarsUse function arrows and control (Ctrl) keys for Windows.
Step 5 Click OK
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Step 6 Again under Settings, open Communications then set the following:
Baud Rate; 19,200Data Bits; 8Stop Bits; 1Parity; NoneFlow Control; Xon / XoffConnector; COM 1 or COM 2 (which ever is being used).
Step 7 Click OK
Step 8 Turn on the Caps Lock.
Step 9 Enter the appropriate command for the test being performed. See the list of commandson the next page.
Commands Options:
SJO Transfer of total operating hours (MC subsystem connection).
SJB Blower/valve calibration (PC subsystem connection).
SJL System final test and limited PC function (PC subsystem connection).
SJP PC error code info, including operating parameters (PC subsystem connection).*
SJM MC error code information (MC subsystem connection).*
SJD DC error code information (DC subsystem connection).*
SJE Check Vent error code history (MC subsystem connection).
SJC For determining type of breath triggering (MC subsystem connection).
* If the unit is in a Vent Inop condition, the current error will automatically appear.
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8.10 Test Cable Usage Definitions
For Vision units serial number <106K
Test Cable 582161 is to be used to test/calibrate BiPAP Vision units with serial numbers <106K
For Vision units serial number <106K that are upgraded hybrid units (new PC/MC installed)
Test Cable 1004823, along with the Ribbon Cable 1004699 (see note below), is to be used to test/calibrate BiPAPVision units with serial numbers <106K that are upgraded hybrid units (repaired using the new PC/MC circuitboards). A standard serial I/O cable is used in conjunction with this to connect to the PC/laptop.Any unit still having the original Display Control Subsystem will still need Test Cable 582161 connected to the DCSto test the unit.
Note: The Ribbon cable will be temporarily installed and then removed after testing. Make sure that the metalconnector housing does not make contact with any components within the Vision unit during use.
For Vision units serial number >106K
Test Cable 1004823 is to be used to test/calibrate BiPAP Vision units with serial numbers >106K. A standard serialI/O cable is used in conjunction with this to connect to the PC/laptop.
Test cable (582161) Ribbon Cable (1004699)
Test Cable (1004823)
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8.11 Oxygen Flow Module Calibration
Purpose:To field adjust the zero flow voltage on the main circuit board of the Oxygen Module Assembly. This test can beperformed on any Oxygen Module that is suspected to be out of tolerance. The Oxygen Module testing in theSystem Final Test should be performed after this test is completed to confirm this module is now operational. Ifacceptable, the complete System Final Test needs to be performed.
Equipment:Digital Multimeter, Fluke 87 or equivalent (3 ½ digit)
Equipment Set Up:
1. Remove the complete oxygen module assembly (except the ground wire and ribbon cable) to be able to easilyperform this test. The assembly can then set on the table next to the Vision unit.
2. Connect the DVM to TP 9 with respect to TP 13 (ground).
Procedure:
1. Turn the Vision unit on.
2. Allow the unit to complete the “System Self Test In Progress”. Do not put the unit into Monitoring mode.
3. Adjust R41 for a value of 0.225 to 0.235 volts DC.
4. Re-assemble unit (if necessary)
NOTE: If the measured Oxygen concentration is still not in specification after completion of this test, followstandard repair practices to obtain acceptable results.
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Chapter 9: PAV/T or EPROM UpgradeInstallation Instructions
9.1 PAV/T Mode or EPROMUpgrade Installation .................................................................. 9-2
9.2 Oxygen Baffle InstallationInstructions (for units S/N <106K) ......................................... 9-6
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9.1 BiPAP Vision PAV / T Mode or EPROM Upgrade Installation
Included in Upgrade Kits Tools Required
EPROM (DC or DCS) Phillips screwdriverEPROM (PC or PAS) Long-shaft, small, flat-bladeEPROM (MC or MCS) Extraction ToolAlarm B PAL (For PAV/T only)
NOTE: For PAV/T mode, the Alarm B PAL on the MC board will also need to be changed.
CAUTION: To ensure proper operation of the unit, the MC, PC, and DC EPROM’s MUST be the samerevision.
Procedure
Removed / Installed During Process
• Top enclosure
• Front panel enclosure
• Display Control Subsystem (DC), partially
• Pressure Control Subsystem (PC)
• EPROM (DC)
• EPROM (PC)
• EPROM (MC)
• Alarm B PAL (install only if not already a PAV/T unit)
WARNING: Electrical shock hazard: Disconnect the electrical supply before attempting to make anyrepairs to the device.
CAUTION: Electrical components used in this device are subject to damage from static electricity.Repairs made to this device must be performed only in an antistatic, ESD-protectedenvironment.
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Step 1 Installing the EPROM Upgrade or PAV/T Mode
NOTE: Each EPROM in the RP kit is labeled for identification purposes. During this procedure,ensure that the correct EPROM has been identified for each installation.
a. Locate the new EPROM for the DC.
b. Remove the DC. Using an appropriate extraction tool,remove the existing EPROM.
NOTE: It may be possible to replace this EPROM by partially removing the DC Board. Leave thekeypad and LCD connections attached and remove the retaining screws to be able tocarefully rotate the board upwards to expose the EPROM side.
NOTE: If necessary, store the removed EPROM in an approved anti-static bag or box.
c. Carefully insert the new DC EPROM.
NOTE: Ensure proper orientation before insertion. Flat edge of EPROM to the flat edge ofthe socket.
d. Re-secure the DC to the front panel.
e. Locate the new EPROM for the PC.
f. Place the PC on an appropriate work surface. Using an appropriate extraction tool, removethe existing EPROM.
EPROM Upgrade or PAV / T Installation (Continued)
Figure 9-1 Location of the DC EPROM
DCSEPROM
S/N <106K, not upgraded S/N >106K, or upgraded
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NOTE: If necessary, store the removed EPROM in an approved antistatic bag or box.
g. Carefully insert the new PC EPROM.
NOTE: Ensure proper orientation before insertion. Flat edge of EPROM to the flat edge of thesocket.
h. Set the PC aside for installation later in this procedure.
i. Locate the new EPROM and Alarm B PAL (PAV/T mode only) for the MC.
j. Using an appropriate extraction tool, remove the existing EPROM from U46.
Figure 9-2 Location of the PC EPROM
EPROM Upgrade or PAV / T Installation (Continued)
PASEPROM
(S/N <106K, not upgraded) (S/N >106K, or upgraded)
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NOTE: If necessary, store the removed EPROM in an approved antistatic bag or box.
k. Carefully insert the new MC EPROM.
l. If necessary, remove the Alarm PAL (PAV/T mode installation only).
m. Carefully insert the new Alarm B PAL (PAV/T mode installation only).
NOTE: Ensure proper orientation before insertion. Flat edge of EPROM to the flat edge ofthe socket.
Step 2 Testing
To ensure the integrity of the unit, the Run-In Cycle and the System Final Test found inChapter 8 must be performed.
Figure 9-3 Location of the MC EPROM
EPROM Upgrade or PAV / T Installation (Continued)
MCS EPROM
Alarm PAL
(S/N <106K, not upgraded) (S/N >106K, or upgraded)
Alarm PAL MCS EPROM
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9.2 BiPAP Vision Oxygen Baffle Installation Instructions(P/N 1004705)
Purpose
To provide the necessary information to install the Oxygen Baffle into BiPAP Vision units less than serialnumber 1006001.
Oxygen Baffle Description
The oxygen baffle provides a better mix of oxygen and air to improve the Air Flow Module (AFM) flowmeasurements.
Oxygen Baffle
▲
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Procedure
1. Remove:• Top Enclosure• Front Panel• AFM• Oxygen module outlet tubing support bracket (no longer needed)• “T” tubing (no longer needed)• 22mm coupling at the Oxygen Module outlet (no longer needed)
Oxygen tubing support bracket
Remove these two screws.
Oxygen Module Tubing
“T” Connection
22mm Coupler
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2. On the AFM assembly, install the two nylon washers provided in the kit under the two mountingscrews for the AFM flowbody to allow proper clearance for the new Oxygen Baffle.
• Remove the two Phillips screws that hold the flow body to the circuit board. Be careful notto cause any damage to the thermistor wiring connection.
• Place the two nylon washers between the AFM flowbody and the circuit board.• Install the screws and securely tighten.
Nylon Washers (2)
AFM Mounting Screws (2)
New, Final AFM Assembly
Nylon Washers (2)
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3. Place the Oxygen Baffle, as far as possible, onto the ILFR with the oxygen inlet port pointing directlyupwards and the flow direction arrow towards the front of the unit.
Oxygen Baffle
Flow Direction Arrow
4. While keeping the AFM lifted slightly upwards, gently insert it into the Oxygen Baffle outlet until theAFM is aligned with its three mounting posts on the bottom enclosure. A back and forth motion maybe required. Push down on the AFM circuit board at the 3 mounting post locations to secure it intoplace.
AFM Insertion
NOTE: Make sure that no tubing for the AFM is “kinked”
5. Re-install:• Remaining AFM connections• Oxygen tubing to baffle• Front enclosure• Top enclosure
6. Perform the BiPAP Vision System Final Testing from Chapter 8 of the service manual.
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Chapter 10: Summary of Upgrades forRepairs of Vision units withSerial Numbers 100500 to106000
10.1 Summary of upgrades for repairs of Vision units with serial numbers 100500 to 106000 ..................................................................... 10-2
10.2 Repair Kits No Longer Manufactured ................................................. 10-5
10.3 Installation/Upgrade Instructions for Repair Parts 1004713 and 1000356 for serial number units less than 106001 ....................... 10-6
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10.1 Summary of upgrades for repairs of Vision units with serial numbers100500 to 106000
Note: For any of the following upgrades, the new Nurse Call/Remote, RS-232, Oxy-gen Baffle, and Ground Stud will not be implemented. Existing Keypad andlabeling will remain the same. Language additions are only available in version13.0 and higher. A non-PAV and PAV kits will be available.
10.1.1 Upgrade #1 – P/N 1004713, RP-Vision PC/MC Upgrade (without PAV) (2 Board Upgrade)
For replacement of the PC (582146) or MC (582140) in s/n’s 100500 to 105999without PAV option. The following items will be included in this kit:
a) MC board and version 12 EPROMb) PC board and version 12 EPROMc) DC version 12 EPROMd) DC ICB connector (must be soldered onto DC board)e) New ICB cablef) Revised longer AFM harnessg) Revised longer Power harnessh) PC/MC board spacersi) Nut for MC center board spacerj) Pressure tubingk) Cable clampsl) Screw for center cable clampm) MC ground screwn) Top cover screws
10.1.2 Upgrade #1A – P/N 1000356, RP-Vision PC/MC Upgrade (with PAV)For replacement of the PC (582146) or MC (582140) in s/n’s 100500 to 105999with PAV option. The following items will be included in the this kit:
a) MC board and version 12 PAV EPROMb) PC board and version 12 PAV EPROMc) DC version 12 PAV EPROMd) DC ICB connectore) New ICB cablef) Revised longer AFM harnessg) Revised longer Power harnessh) PC/MC board spacersi) Nut for MC center board spacerj) Pressure tubing
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k) Cable clampsl) Screw for center cable clampm) MC ground screwn) Top cover screws
10.1.3 Upgrade #2 – P/N 1004714, RP-Vision DC Upgrade (without PAV)(3 board upgrade)
For replacement of the DC (582133) to add the additional languages in s/n’s100500 to 105999 without PAV, the following items must be installed and willbe included in this kit (note that new PC and MC boards are also installed).If necessary, a new test cable (1004823) and RS-232 cable (1004699) will alsohave to be ordered (refer to Section 8.10 for further details).
a) DC board and 13 EPROMb) PC board and version 13 EPROMc) MC board and version 13 EPROMd) Revised longer AFM cablee) Power cable, PSS to PCf) Power cable, PC to DCg) ICB cableh) PC/MC board spacersi) Nut for MC center board spacerj) Pressure tubingk) Cable clampsl) Screw for center cable clampm) MC ground screwn) Top cover screws
10.1.4 Upgrade #2A – P/N 104707, RP-Vision DC Upgrade (with PAV)
For replacement of the DC (582133) to add the additional languages in s/n’s100500 to 105999 with PAV, the following items must be installed and willbe included in this kit (note that new PC and MC boards are also installed). Ifnecessary, a new test cable (1004823) and RS-232 cable (1004699) will also have tobe ordered.
a) DC board and 13 PAV EPROMb) PC board and version 13 PAV EPROMc) MC board and version 13 PAV EPROMd) Revised longer AFM cablee) Power cable, PSS to PCf) Power cable, PC to DC
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g) ICB cableh) PC/MC board spacersi) Nut for MC center board spacerj) Pressure tubingk) Cable clampsl) Screw to center cable clampm) MC ground screwn) Top cover screws
10.1.5 Upgrade #3 – P/N 1000286, RP-EPROM Upgrade Kit (without PAV)
This kit provides a software only update to provide new features to units s/n’s100500 to 105999. The O2% parameter will be retained when switching betweenmodes of operation, pressure increase from 10cm H20 to 15cm H20 during disconnect alarm conditions, and the revised alarm sounds for different alarms willbe implemented.*The following items are included in this kit:
a) MC version 11 EPROMb) PC version 11 EPROMc) DC version 11 EPROM
10.1.6 Upgrade #3A – P/N 1003524, RP-EPROM Upgrade Kit (with PAV)
This kit provides a software only update to provide new features to units s/n’s100500 to 105999 along with the PAV option. The O2% parameter will be retainedwhen switching between modes of operation, pressure increase from 10cm H20to 15cm H20 during disconnect alarm conditions, and the revised alarm soundsfor different alarms will be implemented.*
The following items are included in this kit:d) MC version 11 PAV EPROMe) PC version 11 PAV EPROMf) DC version 11 PAV EPROMg) Alarm B option PAL (not used for units already having PAV)
* 5 beep tone sequence for Patient Alarms3 beep tone sequence for Check Vent AlarmsSoft click for an attempt to change a selection that is out of range.Original solid tone for Vent Inop Alarms
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10.2 Repair Kits No Longer ManufacturedThe following table is a listing of the repair kits that will no longer be available. It alsogives a description to the reasoning behind the decision and the replacement kit to beused as a new substitute.
RP Kit No Longer Reasoning Replacement Kit to beManufactured Used in Place of This
Circulation Fan Muffler, Replaced language specific 1005618, Circulation FanFrench (1000741) items with the international Muffler International.Spanish (1000738) symbols style.German (1000729)EPROM Upgrade (582180) New Kit created to avoid 1000286, Vision EPROM
confusion. Kit (non PAV) for S/N<106K that have not beenupgraded already.
Fuse, International Existing RP kit already 1000750(582099) replaces this.Mail Control Subsystem, Design improvements have Upgrade kit 1004713 (nonMC (582140) made this item obsolete. PAV) or 1000356 (PAV).
See Section B for details.Oxygen Module Assembly, Replaced language specific 1004977, Oxygen ModuleFrench (582254) items with the international International.Spanish (582255) symbols style.Italian (1003547)German (582220)PAV/T Option New kit created to avoid 1003524, Vision EPROM(1000747) confusion. Kit (with PAV) for S/N
<106K that have not beenupgraded already.
Power Line Filter Engineering has included 582138(1000745) this item into the AC inlet
design.Pressure Airflow Design improvements have Upgrade kit 1004713 (nonSubsystem, PC made this item obsolete. PAV) or 1000356 (PAV)(582146) See Section 10.1 for details.Touchpad, Replaced language specific 1004712, UniversalSpanish (582256) items with the international Keyp ad.French (582257) symbols style.
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10.3 Installation/Upgrade Instructions for Repair Parts 1004713 and 1000356 (PC/MC Upgrade, with and without PAV, for serial number units less than 106000)
Caution: All work is to be done following proper ESD guidelines.
Note: The original Total Operating Hours should be recorded, if possible, to enter onto the new unitwhen this upgrade is complete.
Additional Items Required:• Ribbon Cable used for testing (RI # 1004699)• BiPAP Vision Service Manual (RI # 582160)• Test Cables (RI # 582161, and 1004823)• Other miscellaneous items as called out in the service manual to support testing after this upgrade is
performed as defined in this procedure.
Remove the following from the existing unit with serial number less than 106000:1. Top cover.2. Front Panel.3. DCS.4. Inlet tubing, Blower Muffler and Blower* (may need to partially remove the Oxygen assembly to
access the back blower mounting screw).5. All connections to the PAS.6. PAS.7. MCS.8. The two cable clamps from the left side of the unit that hold the blower, power supply, and main
power indicator wiring.
* It is possible to just remove the front two blower mounting screws and then when required,partially lift upwards on the front of the blower assembly to perform this upgrade.
The following will no longer be needed:1. Power cable (gray) that originally connected to the PSS, PAS, and DCS.2. ICB cable.3. AFM to PC ribbon cable.4. 4 of the 5 screws that held the MCS in place.5. PAS (including software).6. MCS (including software).7. DCS software.8. Two top cover screws.
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From the repair kit 1004713 or 1000356 (PAV):
1. Locate the EPROMs (version 12) and place them into their respective locations on the MC andPC boards.
2. For non-PAV/T units, remove the original Alarm PAL located in U41 in the MCS and place it inthe new MC board. For PAV/T units, install the PAL provided with upgrade kit 1000356 into U41in the MC board.
3. Remove the DCS from the front panel. Install the DCS EPROM into its respective location.
4. Locate the independent connector supplied with the kit. Insert it into the DCS next to the originalICB connector that is in the center of the board. It should be placed so that the keying (single openslot in the plastic body of the connector) is facing downwards. Solder in place. This will allow forthe new ICB cable to be located so that the ribbon cable is downwards towards the bottom of theunit.
5. Re-install the original DCS back onto the front enclosure.
6. Install the 6-32 nut and one of the aluminum spacers onto the MC board with the spacer locatedon the component side of the board and the nut on the other side. The mounting hole is located bythe power cable connection near the center of the board.
7. Install the MC board into the bottom enclosure. Use the existing nylon “snap” standoffs to beplaced where the original ones were removed, except put the new 8-32 x 3/8 screw in themounting hole with the ground plane around it, which is located along the transformer edge of theMC board.
8. Also for the MC, install new nylon “snap” standoffs in the front left and back left MC mountingholes. Put one of the three nylon standoffs between these two. Put one of the other two nylonstandoffs in the rear behind the power supply connector and the third one opposite of this in thefront of the MC board.
9. Place the original DC ground wire and screw is to put into the mounting hole with the ground planearound it on the front left side of the MC board.
10. Temporarily install the Ribbon cable, 1004699. This is not part of the kit, but should be kept onhand as part of the service tools needed to repair upgraded BiPAP Vision units s/n<106K. It willbe left in only for testing purposes and must be removed afterwards.
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11. Install the PC board onto the MC board standoffs making sure that the power connection near thecenter of the board, and the other similar connector (testing and error data) located in the frontright of the board are fully seated. Also make sure that all of the nylon “snap” locks are fullyengaged.
12. Mount the second aluminum standoff onto the location near the center of the PC board where thefirst aluminum standoff from the MC board can be seen.
13. Connect the blower, valves, circulation fan current sense, Oxygen Module ribbon cable, and thenew ICB cable to the appropriate PC connection points.
14. Locate the new AFM to PC ribbon cable and install it in place. Put this on the PC connection J4to the AFM. The other is connected to J6 for the OM ribbon connection.
15. Connect the new power supply cable to the PSS connection. Note that the new cable has 6inches between the one end connector and the one in the middle. Connect this middle connectorto the power connection on the PC board. Make a counterclockwise loop in the remaining part ofthe cable that will connect to the DCS board. Using the 6-32 x ¼ inch screw and cable clampfrom the kit, attach the power supply cable to the center aluminum standoff in the center of the PCboard. This will allow the cable to be secured, but also allow some movement of the cable duringfront panel removal.
16. Remove the 7 inch piece of pressure tubing that connects from the “T” fitting on the AFM thatoriginally connected to the pressure sensor on the PAS board.
17. Locate the 3 inch piece of pressure tubing in the kit and place one end on the AFM “T” connec-tion and the other end to the redundant pressure sensor. This is the sensor located nearest to theAFM module.
18. Re-install the blower, blower muffler and inlet tubing (if all or any of these were removed). Con-nect the blower connector to the PC board.
19. Re-install the front enclosure, making sure that all the proper connections are secured in place.The patient pressure tubing will go from the front enclosure to the middle pressure sensor, port onthe right side.
20. Make sure all required connections are correctly made. Just a reminder to double check yourwork.
Installation/Upgrade (continued)
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21. When the upgraded unit is first turned on, a Check Vent Error 301 may occur. This will clear afterthe Blower/Valve Calibration is performed on the unit and the unit is cycled off and then on again.
22. Using the Total Operating Hours Transfer found in chapter 8 of the BiPAP Vision service manual,put the original operating hours into the unit.
23. Perform Blower/Valve Calibration found in chapter 8 of the BiPAP Vision service manual.
Note: The PRV muffler DOES NOT get removed once this upgrade is installedinto a unit.
24. Perform the Run-In Test and then the System Final Test found in chapter 8 of the BiPAP Visionservice manual.
25. When complete, remove the Ribbon (1004699) cable that was temporarily installed into the MCboard.
26. Install the top enclosure using the two 6-32 x ½ screws supplied with the kit.
Installation/Upgrade (continued)
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Appendix A: Tools and Equipment
A.1 Service Tools and Supplies ...................................................... A-2
A.2 Acceptable Test Equipment .................................................... A-3
A.3 TSI Inc. Certifier Test System .................................................. A-6
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A.1 Service Tools and Supplies
You should have the following hand tools and supplies available for troubleshooting, testing, and repair ofthe BiPAP Vision.
• Common hand tools:
Flat-blade screwdrivers – small (long shaft) and medium
Phillips screwdriver – medium
Nut drivers – 1/4”, 5/16”, 11/32”, and 7/16”
1/4” wrench
Needle-nose pliers, medium
• Antistatic work station – minimum requirement is a grounded mat and wrist strap
• Digital manometer - see section A.2, A.3
• Flowmeter - see section A.2, A.3
• Digital Multimeter – see section A.2
• PC/Laptop – see section A.2
• O2 Analyzer - see section A.2, A.3
• Oxygen tank, medical grade oxygen and regulator
• Mechanical test lung – see section A.2
• Test Cable – Respironics P/N 582161 or 1004823 (see test cable description, Chapter 8)
• Pressure tubing – 6 in., 6 ft., other misc. lengths as required
• Tubing, 6 ft. smooth inner lumen – Respironics P/N 301016, other misc. lengths as required.
• Variable flow restrictor - Respironics P/N 1006120
• Pressure Pick-Off Port – Respironics P/N 312710
• Test orifice – 0.25” – Respironics P/N 332353
• Isopropyl alcohol
• Cleaner (i.e. Fantastik®, 409®.)
• Cleaning cloth
• Bacteria filter
• Mild Detergent
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A.2 Acceptable Test Equipment
A.2.1 Digital Manometer
Specifications:
0-40 cm H2O minimum
± 1.0% cm H2O of reading
Acceptable Options:
• Certifier Flow Analyzer, RI p/n 1012598 (High flow module) (see A.3 for details)
• Any commercially available digital manometer that meets the above specifications
A.2.2 Flowmeter
Specifications:
0-150 L/minimum
± 1% of reading
Acceptable Options:
• Certifier Flow Analyzer, RI p/n 1012598 (High flow module) (see A.3 for details)
• Any commercially available flowmeter that meets the above specifications
A.2.3 Digital Multimeter
Specifications:
3 1/2 digit readout
Acceptable Options:
• Fluke 87 or better model.
• Any commercially available digital multimeter that meets the above specifications
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A.2.4 PC/Laptop
Acceptable Options:
• Any commercially available PC or laptop with Windows operating system and hyperterminal.
A.2.5 Mechanical Lung (Adult)
Specifications:
Variable Compliance includes 0.05
Parabolic Resistor value RP-20
Lung capacity of at least 100L
Acceptable Options:
• Michigan Instruments, Inc. Model 1601 Test Lung
• Any commercially available test lung that meets the above specifications
A.2.6 Electrical Safety Analyzer
Specifications:
Earth Resistance
Range – 0 to 19.99 Ohms
Resolution – 0.01 Ohms
Accuracy – ±5%, ±1 digit
Leakage Current
Range – 0 to 19.99 µA
Resolution – 1µA
Accuracy – 2.5 to 1k HZ: ±1%, ± 1 digit
1k HZ to 100 k HZ: ± 1 digit
100 k HZ to 1M HZ: ± 1 digit
Acceptable Options:
• Dale model 544L
• Any commercially available safety analyzer that meets the above specifications.
BiPAP Vision Service Manual
Appendix A: Tools and Equipment A-5
1045049
A.2.7 Oxygen Analyzer
Specifications:
Range: 0.0% to 100.0% O2
Display Resolution: 0.1% O2 increments
Accuracy: ± 2% of full scale
Acceptable Options:
• Certifier Flow Analyzer, RI p/n 1012598 (High flow module) (see A.3 for details)
• MSA Mini OX1 (or better)
• Servomex 570A Oxygen Analyzer
• Any commercially available Oxygen Analyzer that meets the above specifications
Acceptable Test Equipment (Continued)
BiPAP Vision Service Manual
Appendix A: Tools and EquipmentA-6
1045049
A.3. TSI, Inc. Certifier Test System
The Certifier FA Test System manufactured by TSI Inc. and will be distributed worldwide by Respironics Inc. Thistest system, currently being used by the Respironics mobile technicians, is ideal for biomedical testingapplications, including ventilators. The system as configured can measure air, O2 and nitrous gases. The followingare the measurement capabilities of this device:
♦ Flow♦ Peak Flow♦ Volume♦ Stacked Volume♦ Minute Volume♦ Inspiratory Time♦ I:E Ratio♦ Respiratory Rate♦ Pressure♦ Peak and PEEP Pressure♦ Barometric Pressure
This small battery powered unit is ideal for use in the field, in any medical facility or laboratory. It comes equippedwith all the filters and connectors to install in-line for testing purposes. There are two versions being offered. Thefirst version is the portable unit with a high flow and O2 module. This is the version used currently by theRespironics Mobile Technicians for test of the Esprit, Vision and the PLV. The second version includes the highflow and O2 module but adds a low flow module and is designed to handle low flow and volume measurementswhen a high degree of accuracy is required. The following is the ordering information for both versions:
P/N 1012598 - Kit, Certifier, High Flow ModuleP/N 1012599 - Kit, Certifier, High and Low Flow
These kits can be ordered through Respironics Customer Service.
BiPAP Vision Service Manual
B-1
1045049
Appendix B: Schematics
B.1 Schematic Statement ................................................................. B-2
B.2 Main Control (MC) .................................................................... B-3
B.3 Display Control (DC) ............................................................... B-9
B.4 Pressure Control (PC)............................................................. B-20
B.5 Air Flow Module (AFM) ........................................................ B-25
B.6 Oxygen Module (OM) ............................................................ B-26
B.7 Power Supply ........................................................................... B-27
BiPAP Vision Service Manual
Appendix B: SchematicsB-2
1045049
B.1 Schematic StatementSchematics are supplied with this manual in direct support of the sale and purchase of this product.
The schematics are proprietary and confidential. Do not copy the schematics or disclose them to thirdparties beyond the purpose for which they are intended. Patents are pending.
The schematics are intended to satisfy administrative requirements only. They are not intended to be usedfor component level testing and repair. Repairs and testing are supported only at the complete board level.
Respironics does not recommend component repair of the BiPAP Vision. The circuit boards in the BiPAPVision are multilayer boards. Due to the very small trace size, extreme care must be used when replacingcomponents to prevent permanent nonrepairable damage to the circuit board. Components are surfacemounted and require special hot air jet soldering and desoldering equipment. Most of the work should bedone under a microscope set at 25 times magnification. Use of regular soldering equipment will damagethe board and void any applicable warranty.
The schematics are of the revision level in effect at the time that this manual was last revised. Priorrevisions may be obtained upon request.
B.1 Schematic Statement
BiPAP Vision Service Manual
B-3
1045049
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BiPAP Vision Service Manual
Appendix B: SchematicsB-4
1045049
Mai
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SIZ
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1
PA
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NO
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V.
OF
SH
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BiPAP Vision Service Manual
B-5
1045049
M
ain
Con
trol
I
/ O I
nte
rfac
e 2
B.2 Main Control (MC)
3366
J. M
ALI
VU
KJ.
MA
LIV
UK
55
PF
AIL
INT
PF
AIL
INT
RE
SE
TR
ES
ET
PC
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AIN
CO
NT
RO
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ION
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IN C
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BiPAP Vision Service Manual
Appendix B: SchematicsB-6
1045049
Mai
n C
ontr
olle
r P
CM
CIA
In
terf
ace
B.2 Main Control (MC)
J. M
ALI
VU
K
465
J3:M
CO
NN
M 2
0 P
IN R
A R
IBB
ON13
J3:K
CO
NN
M 2
0 P
IN R
A R
IBB
ON11
J3:P
CO
NN
M 2
0 P
IN R
A R
IBB
ON16
J3:Q
CO
NN
M 2
0 P
IN R
A R
IBB
ON17
J3:O
CO
NN
M 2
0 P
IN R
A R
IBB
ON15
J3:R
CO
NN
M 2
0 P
IN R
A R
IBB
ON18
J3:S
CO
NN
M 2
0 P
IN R
A R
IBB
ON19
J3:I
CO
NN
M 2
0 P
IN R
A R
IBB
ON9
J3:T
CO
NN
M 2
0 P
IN R
A R
IBB
ON20
0.22
uH
L18
10.0
R10
9
0.22
uH
L20
0.22
uH
L19
10.0
R92
IIS
OG
ND
10.0
R95
PC
A V
ISIO
N M
AIN
CO
NT
RO
L B
D
3-17
-99
3-17
-99
3-16
-99
0.22
uH
L17
0.22
uH
L16
0.22
uH
L15
S10
0136
610
0136
6
ELC
/ S
ER
IAL
INT
ER
FA
CE
SC
HE
MA
TIC
N/A
VIS
ION
ED
MS
ED
MS
IIS
OG
ND
10.0
R97
10.0
R96
ELC
ELC
U1:
C
(7=
DG
ND
,14=
+5V
)M
C74
HC
14A
56
U1:
B
(7=
DG
ND
,14=
+5V
)M
C74
HC
14A
34
+5V
10.0KR7
ELC
221K
R17
FL2
1000pf2 1
DG
ND
DG
ND
Q3
BS
S12
3LT
1
DG
ND
C7
.1uF
U1:
A
(7=
DG
ND
,14=
+5V
)M
C74
HC
14A
12
J3:L
CO
NN
M 2
0 P
IN R
A R
IBB
ON12
J3:J
CO
NN
M 2
0 P
IN R
A R
IBB
ON10
J3:N
CO
NN
M 2
0 P
IN R
A R
IBB
ON14
IIS
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ND
+5V
ISO
C2
2.2u
FC
14
2.2u
F
10.0
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10.0
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10.0
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10.0
R99
C15
2.2u
F
0.22
uH
L12
0.22
uH
L13
0.22
uH
L14
6N13
6-00
7
U43
NC
1 2 3
NC
45678
6N13
6-00
7
U39
NC
1 2 3
NC
45678
6N13
6-00
7
U49
NC
1 2 3
NC
45678
3.32KR33
3.32KR100
3.32KR101
+5V
ISO
+5V
ISO
AS
YN
CH
RO
NO
US
SE
RIA
L IN
TE
RF
AC
E
C12
2.2u
FC
13
2.2u
F
DG
ND
C6
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IIS
OG
ND
+5V
ISO
IIS
OG
ND
+5V
ISO
IIS
OG
ND
22.1
KR
16+
5VIS
O
+5V
ISO
ELC
SIG
NA
L
ELC
AC
T
10.0
R14
9
DG
ND
DG
ND
TX
D_P
AS
U44
:C
MC
74H
C14
A(7
=D
GN
D,1
4=+
5V)
65
U44
:E
MC
74H
C14
A(7
=D
GN
D,1
4=+
5V)
1011
TX
D
392
R11
2
392
R10
6
392
R10
4DG
ND
+5V
U44
:A
MC
74H
C14
A(7
=D
GN
D,1
4=+
5V)
21
J6:A
1
392
R10
2
392
R10
3
392
R11
5
MA
X20
7EC
WG
U11
GN
D8
T5O
UT20
T5I
N21
R1I
N4
R1O
UT
5
R2I
N23
R3I
N16
R3O
UT
17R
2OU
T22
T1O
UT2
T2O
UT3
T3O
UT1
T4O
UT24
T4I
N19
T3I
N18
T1I
N7
T2I
N6
V-
15
C2-
14C
2+13
VC
C9
V+
11C
1-12
C1+
10
6N13
6-00
7
U50
NC
1 2 3
NC
45678
6N13
6-00
7
U42
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1 2 3
NC
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6N13
6-00
7
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1 2 3
NC
45678
IIS
OG
ND
IIS
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ND
IIS
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ND
IIS
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ND
3.32KR15
3.32KR18
3.32KR14
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V.
OF
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BiPAP Vision Service Manual
B-7
1045049
M
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trol
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Err
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Con
trol
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cuit
B.2 Main Control (MC)
J. M
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JP1
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DG
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DG
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C44 C44
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C43 C43
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DG
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DG
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DG
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DG
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DG
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22uH
L3L322
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DG
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DG
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DG
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ULK
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DG
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DG
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10.0K 10.0KR169 R169
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1/4W 1/4W182 182
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8
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47.5K 47.5KR172 R172
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)(7
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33
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NO
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AR
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RE
V.
RE
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OF
OF
SH
EE
TS
HE
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BiPAP Vision Service Manual
Appendix B: SchematicsB-8
1045049
M
ain
Con
trol
ler
Dec
oup
lin
g C
aps
B.2 Main Control (MC)
66
J. M
ALI
VU
K5
S10
0136
610
0136
6
BY
PA
SS
SH
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ED
MS
ED
MSV
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N
SC
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N/A
3-16
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3-17
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PC
A V
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54
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PIN
61
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40
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U25
C112
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DG
ND
DG
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C118
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+5V
PIN
42
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124
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C110
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PIN
21
U25
DG
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C108
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+5V
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8
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C124
.1uF
C126
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C48
.1uF
PIN
98
U25
PIN
113
+5V
+5V
U25
PIN
84
DG
ND
PIN
1U
25
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+5V
U25
U25
DG
ND
+5V
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uF10
V
+C
62 10uF
10V
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18U
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+12
V
C53
.1uF
DG
ND
DG
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DG
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DG
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+5V
DG
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DG
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C18
.1uFU2
C16
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U24
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B A
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65
D
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78
CC
23
D
14 4
3
AP
PR
BY
:
C
ON
FID
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L A
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PR
OP
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TA
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IN
FO
RM
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B
2
DR
N B
Y:
CH
K B
Y:
PR
OC
ES
S:
PR
OD
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T L
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:
TIT
LE:
RE
SP
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NIC
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DS
CA
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DR
AW
ING
NO
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IZE
A
1
PA
RT
NO
.
RE
V.
OF
SH
EE
T
BiPAP Vision Service Manual
B-9
1045049
D
isp
lay
Con
trol
Pow
er C
onve
rsio
n C
ircu
itry
B.3 Display Control (DC)
BiPAP Vision Service Manual
Appendix B: SchematicsB-10
1045049
D
isp
lay
Con
trol
Bat
tery
an
d In
dic
ator
Cir
cuit
ry
B.3 Display Control (DC)
BiPAP Vision Service Manual
B-11
1045049
Dis
pla
y C
ontr
ol E
rror
Lin
e C
ontr
ol C
ircu
itry
B.3 Display Control (DC)
BiPAP Vision Service Manual
Appendix B: SchematicsB-12
1045049
D
isp
lay
Con
trol
Dia
gnos
tic
Inte
rfac
e an
d A
dd
ress
Dec
odin
g
B.3 Display Control (DC)
BiPAP Vision Service Manual
B-13
1045049
Dis
pla
y C
ontr
ol U
ser I
nte
rfac
e an
d S
afe
Sta
te C
ircu
itry
B.3 Display Control (DC)
BiPAP Vision Service Manual
Appendix B: Schematics
B-14
1045049
Dis
pla
y C
ontr
ol M
icro
con
trol
ler
Inte
rfac
e
B.3 Display Control (DC)
BiPAP Vision Service Manual
B-15
1045049
PC
A D
isp
lay
Con
trol
Boa
rd -
Pow
er C
onve
rsio
n C
ircu
itry
B.4 Display Control (PC)S/N >106K
BiPAP Vision Service Manual
Appendix B: Schematics
B-16
1045049
PC
A D
isp
lay
Con
trol
Boa
rd -
Bat
tery
an
d I
nd
icat
or C
ircu
itry
B.4 Display Control (PC) S/N >106K
BiPAP Vision Service Manual
B-17
1045049
PC
A D
isp
lay
Con
trol
Boa
rd -
Err
or L
ine
Con
trol
B.4 Display Control (PC) S/N >106K
BiPAP Vision Service Manual
Appendix B: Schematics
B-18
1045049
P
CA
Dis
pla
y C
ontr
ol B
oard
- D
iagn
osti
c In
terf
ace
& A
dd
ress
Dec
odin
g
B.4 Display Control (PC) S/N >106K
BiPAP Vision Service Manual
B-19
1045049
PC
A D
isp
lay
Con
trol
Boa
rd -
Mic
roco
ltro
ller
In
terf
ace
B.4 Display Control (PC) S/N >106K
BiPAP Vision Service Manual
Appendix B: Schematics
B-20
1045049
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD 5
1
6
1001
365
S10
0136
5S
1001
365
CP
U
VIS
ION
SC
HE
MA
TIC
N/A
C91
100pFC96
100pFC97
100pFC99
100pF
DG
ND
DG
ND
DG
ND
DG
ND
PC
S1
PC
S1
CLK
OU
TC
LKO
UT
RE
SE
TR
ES
ET
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:J
J9:J
10
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:I
9
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:H
8
DS
O
* * *
+5V
*
PP
25R
ES
ET
TP
8
U7:
B
(7=
DG
ND
,14=
+5V
)M
M74
HC
32A
MM
74H
C32
A
4 56
U7:
A
(7=
DG
ND
,14=
+5V
)M
M74
HC
32A
MM
74H
C32
A
1 23
47.5KR32
WR
PP
18P
P17
+5V
+5V
825.0
R29
1010R34
PC
S1-
P
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
J10
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
K11
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
I9
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
L12
PP
20P
P19 DG
ND
4. A
NY
CH
AN
GE
TO
TH
E S
CH
EM
AT
IC C
OU
LD A
FF
EC
T T
HE
PE
RF
OR
MA
NC
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F T
HE
4. A
NY
CH
AN
GE
TO
TH
E S
CH
EM
AT
IC C
OU
LD A
FF
EC
T T
HE
PE
RF
OR
MA
NC
E O
F T
HE
5.
WID
ER
LIN
ES
IND
ICA
TE
JU
MP
ER
S T
HA
T A
RE
AD
DE
D T
O A
SS
EM
BLY
, 5.
W
IDE
R L
INE
S IN
DIC
AT
E J
UM
PE
RS
TH
AT
AR
E A
DD
ED
TO
AS
SE
MB
LY,
N
OT
ON
OR
IGIN
AL
PC
B.
N
OT
ON
OR
IGIN
AL
PC
B.
*2.
AN
AS
TE
RIS
K "
"
IND
ICA
TE
S C
OM
PO
NE
NT
S T
HA
T A
RE
NO
T IN
ST
ALL
ED
.2.
AN
AS
TE
RIS
K "
"
IND
ICA
TE
S C
OM
PO
NE
NT
S T
HA
T A
RE
NO
T IN
ST
ALL
ED
.
PLE
AS
E R
EF
ER
TO
PA
S T
ES
T E
PR
OM
TF
-58-
030.
TE
ST
SO
FT
WA
RE
. T
ES
T F
UN
CT
ION
ALI
TY
SH
OU
LD B
E V
ER
IFIE
D.
TE
ST
SO
FT
WA
RE
. T
ES
T F
UN
CT
ION
ALI
TY
SH
OU
LD B
E V
ER
IFIE
D.
3. A
LL T
ES
T P
OIN
TS
AR
E N
OT
INS
TA
LLE
D.
3. A
LL T
ES
T P
OIN
TS
AR
E N
OT
INS
TA
LLE
D.
1. A
LL R
ES
IST
OR
S 1
/8 W
AT
T, 1
% U
NLE
SS
OT
HE
RW
ISE
SP
EC
IFIE
D.
1. A
LL R
ES
IST
OR
S 1
/8 W
AT
T, 1
% U
NLE
SS
OT
HE
RW
ISE
SP
EC
IFIE
D.
NO
TE
S:
PP
24
SP
AR
ES
U7:
D
(7=
DG
ND
,14=
+5V
)M
M74
HC
32A
12 1311
DG
ND
PP
23
PP
29U
8:F
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
A
1312
PP
28 DG
ND
DG
ND
U8:
E
(7=
DG
ND
,14=
+5V
)M
C74
HC
14A
1110
PP16 PP16
DG
ND
U29
MA
X69
6CW
E
LOW
LIN
ELO
WLI
NE
6
NC
12
GN
D4
BA
TT
ON
BA
TT
ON5
OS
CS
EL8
OS
CIN
7
RE
SE
T16
RE
SE
T15
WD
O14
PF
O10
LLIN
13W
DI
11P
FI
9V
BA
TT
1V
OU
T2
VC
C3
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:C
3
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:B
J9:B
2
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:E
J9:E
5
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:D
4
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:G
J9:G
7
CO
NN
M 1
0 P
IN 1
00C
ON
N M
10
PIN
100
J9:F
J9:F
6
DS
I*
RE
SE
T
FR
EE
ZE
*
BK
PT
* * * **
DG
NDB
ER
R
DS
DE
BU
GC
ON
N M
10
PIN
100
CO
NN
M 1
0 P
IN 1
00
J9:A
J9:A
1A
M27
C20
48A
M27
C20
48
U3
A12
38
A11
37
A10
36
A9
35
A8
32
A7
31
A6
30
A5
29
A4
28
A3
27
A2
26
A1
25
A0
24
VS
S34
NC
23
VS
S12
NC
13
DQ
120
DQ
021
DQ
219
DQ
318
DQ
417
DQ
516
DQ
615
DQ
714
DQ
811
DQ
910
DQ
10D
Q10
9D
Q11
DQ
118
DQ
12D
Q12
7
PG
M43
NC
33V
CC
44V
PP
2
NC
1
A16
42
A15
41
A14
40
A13
39D
Q13
DQ
136
DQ
14D
Q14
5D
Q15
DQ
154
OE
22C
E3
PP
22P
P21
D0
D1
D2
D3
D4
D5
D6
D7
DG
ND
DG
ND
D8
D9
MO
SI
MO
SI
MIS
OM
ISO
PC
S0
PC
S0
SC
KS
CK
CS
9
EP
RO
M
AS
SE
MB
LY L
EV
EL
AS
SE
MB
LY L
EV
EL
INS
TA
LLE
D A
T N
EX
TIN
ST
ALL
ED
AT
NE
XT
*+
5V+
5V
PP
11D
GN
DP
P6
CS
BO
OT
CS
BO
OT
D10
D11
D12
D13
D14
D15
A17
A11
A12
A13
A14
A15
A16
DG
ND
D8
D9
D10
D11
D12
+5V
+5V
ST
AT
IC R
AM
UP
PE
R B
YT
E+
5V
D0
D1
D2
D3
D4
A1
A2
A3
A4
A5
A6
A7
RD
CS
0W
R
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
G7
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
H8
CS
9-P
1010R33
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
E5
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
F6
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
A1
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
CJ1
0:C
3
CO
NN
M 1
2 P
IN 1
00C
ON
N M
12
PIN
100
J10:
B2C
ON
N M
12
PIN
100
CO
NN
M 1
2 P
IN 1
00J1
0:D
4
PC
S0-
P
MIS
O-P
MO
SI-
P
SC
K-P
SC
K-P
1010R241010R14
BU
S A
CC
ES
S J
UM
PE
R
A10
A9
A6
A7
A1
A4
A3
A8
D15
D14
DG
NDD
13
A5
A2
D7
D6
D5
A15
A14
A13
A12
A11
A10
A9
A8
KM
6225
6
U20
I/O8
19I/O
718
I/O6
17I/O
516
I/O4
15I/O
313
I/O2
12I/O
111
VC
C28
VS
S14
WE
27C
S20
OE
22
A10
21
A11
23
A14
1
A12
2
A9
24A
825
A7
3A
64
A5
5A
46
A3
7A
28
A1
9A
010
A13
26
DG
ND
RD
+5V
+5V
47.5KR51
R/W
AS
47.5
KR
1R
6647
.5K
+5V
A8
A9
A10
A11
A12
A13
A14
A15
U27
KM
6225
6
I/O8
19I/O
718
I/O6
17I/O
516
I/O4
15I/O
313
I/O2
12I/O
111
VC
C28
VS
S14
WE
27C
S20
OE
22
A10
21
A11
23
A14
1
A12
2
A9
24A
825
A7
3A
64
A5
5A
46
A3
7A
28
A1
9A
010
A13
26
D11
D10
D8
D9
D7
D6
D2
D5
D4
D12
D3
D13
D14
D15
PP
38
PP
37P
P14
PP
10
PP
9
PP
7P
P8
CS
9-P
CS
5
CS
BO
OT
CS
1C
S0
ST
AT
IC R
AM
LO
WE
R B
YT
EM
ICR
OC
ON
TR
OLL
ER
DA
TA
_BU
SD
AT
A_B
US
WR
CS
1R
D
D0
D1
A1
A2
A3
A4
A5
A6
A7
+5V
DG
ND
DIO
DE
LED
SM
T
CR
22
1.00
KR
13
10.0KR106
10.0KR101
10.0KR102
10.0KR103
10.0KR104
10.0KR105
A1
A2
A3
A4
A5
A6
A7
A9
A8
PP
3
AD
DR
ES
S_B
US
AD
DR
ES
S_B
US
+5V
+5V
ER
RO
RLE
DE
RR
OR
LED
U8:
B
(7=
DG
ND
,14=
+5V
)M
C74
HC
14A
34
10.0KR99+
5V
10.0KR100
C22
.001uF
C47
.1uF
RE
SE
T
BE
RR
AG
ND
A17
PP
2
A10
A12
A13
A11
A14
A16
A15
ILF
R_O
PE
NE
LC
AD
SIN
TA
DS
INT
RC
VIN
TR
CV
INT
SN
DIN
TS
ND
INT
C56
10uF 10
V
+U
19
LM40
40B
IM-5
.0LM
4040
BIM
-5.0
+12
V+
12V
10.0
K10
.0K
R69
MO
TO
RF
AU
LTM
OT
OR
FA
ULT
PR
V_O
PE
N
ELC
AC
T
18.2KR68
C52
.01u
F.0
1uF
.1uF
C1
DG
ND
U7:
C
(7=
DG
ND
,14=
+5V
)M
M74
HC
32A
9 108
PP
27P
P26 D
GN
DD
GN
D
U8:
D
(7=
DG
ND
,14=
+5V
)M
C74
HC
14A
98
U8:
C
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
A
56
C95
10pF
DO
GR
ES
ET
DG
ND
DG
ND
R31
10.0K
.01uF
C11
32.7
68 K
HZ
32.7
68 K
HZ
Y1
DG
ND
DG
ND
22pF
22pF
C10
+5V
+5V R155 R155
100
DG
ND
R23332K
22pF
C14
* TP
9
C12
.1uF
DG
ND
R157
24.3KD
GN
D
WA
TC
HD
OG
AN
D L
OW
VO
LTA
GE
RE
SE
T
BK
PT
R67
4.99
K4.
99K
10.0
M
R2
R15
410
.0K
20R9
U8:
A
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
A
12
DG
ND
AS
DS
PP
4P
P5 +
5V
DS
ID
SO
FR
EE
ZE
10.0
KR
3
C85
.1uF
C35
.001uF
PP
15+5V
PC
S3-
PP
CS
2-P
DO
GR
ES
ET
47.5KR112
47.5KR42
47.5KR111
47.5K
R30
47.5K
R28
MIS
O-P
MO
SI-
PS
CK
-PP
CS
0-P
PC
S1-
P
+5V
*R110
DG
ND47.5K
R113
+5V
TX
D
OM
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TE
CT
AF
M-D
ET
EC
TR
XD
V_I
LFR
47.5KR108
47.5KR109
47.5KR107
HD
W_R
EV
10V
10V
C57
C57
10uF
+
AG
ND
BS
PE
ED
BE
NA
BLE
PO
UT
_BU
+5V
100
100
R41
AIR
TE
MP
V_O
2V
_PR
V
RE
SE
TR
ES
ET
O2T
EM
PO
2TE
MP
DG
ND
DG
ND
C101
.01uF
C102
.01uF
PC
S3-
P
PC
S2-
P
10R3610R35
PC
S3
(22,
29,4
1,58
,62,
83,9
7,10
5,11
2,12
5=D
GN
D, 2
1,40
,59,
61,8
4,98
,113
,124
=+
5V)
U1
MC
68H
C16
Z1
MC
68H
C16
Z1
VD
DI1
VS
SI2
DA
TA
1096
DA
TA
999D
AT
A810
0D
AT
A710
1D
AT
A610
2D
AT
A510
3D
AT
A410
4D
AT
A310
6D
AT
A210
7D
AT
A110
8
VD
DE
8
IRQ
1/P
F1
78IR
Q2/
PF
277
IRQ
3/P
F3
76
AD
DR
19/C
119
DA
TA
1591
RE
SE
T69
HA
LTH
ALT
70
BE
RR
71
IRQ
4/P
F4
75D
AT
A14
92
VR
L51
VR
H50
AD
DR
20/C
120
AD
DR
21/C
121
BG
AC
K/C
S118
BG
/CS
1117
BR
/CS
0116
CS
BO
OT11
0
IRQ
5/P
F5
74IR
Q6/
PF
673
IRQ
7/P
F7
72D
AT
A11
95
DA
TA
1294
DA
TA
1393
AD
DR
1839
AD
DR
1738
AD
DR
1637
AD
DR
1536
AD
DR
1435
AD
DR
1334
AD
DR
1233
AD
DR
1132
AD
DR
1031
AD
DR
930
AD
DR
828
AD
DR
727
AD
DR
626
AD
DR
525
AD
DR
424
AD
DR
323
AD
DR
220
AD
DR
119
AD
DR
090
DA
TA
0109
VS
SE
9
RX
D17
VD
DA
42
VS
SA
43
AN
O/P
AD
A44
AN
1/P
AD
AA
N1/
PA
DA
45
AN
2/P
AD
AA
N2/
PA
DA
46
AN
3/P
AD
AA
N3/
PA
DA
47
AN
4/P
AD
AA
N4/
PA
DA
48
AN
5/P
AD
AA
N5/
PA
DA
49
AN
6/P
AD
AA
N6/
PA
DA
52
AN
7/P
AD
AA
N7/
PA
DA
53
VS
TB
Y54
VD
DS
YN
56
PA
I12
9
PW
MA
128
PW
MB
127
PC
LKP
CLK
126
BK
PT
/DS
C66T
ST
ME
/TS65
MO
DC
LK/P79
IPIP
E0/
D67
IPIP
E1/
D68
XT
AL
55E
XT
AL57
XF
C60
CLK
OU
T63
FR
EE
ZE
/Q64
IC1/
PG
P0
7
IC2/
PG
P1
6A
DD
R22
/C12
2
AD
DR
23/C
123
IC4/
OC
5/13
0O
C4/
OC
1/13
1O
C3/
OC
1/13
2
TX
D/P
QS
718
PC
S3/
PQ
S16
PC
S2/
PQ
S15
PC
S1/
PQ
S14
PC
S0/
SS
/13
SC
K/P
QS
212
MO
SI/P
QS
11M
ISO
/PQ
S10
IC3/
PG
P2
5
OC
1/P
GP
34
OC
2/O
C1/
3
FC
0/C
S3/
FC
0/C
S3/11
1
DS
AC
K0/
P89
DS
AC
K1/
P88
AV
EC
/PE
287
DS
/PE
486
AS
/PE
585
SIZ
0/P
E682
SIZ
1/P
E781
R/W
80
FC
2/C
S5/
FC
2/C
S5/11
5F
C1/
CS
4/F
C1/
CS
4/114
PC
S2
R/W
R/W
PO
WE
R A
ND
GR
OU
ND
PIN
S F
OR
U1
- N
OT
ON
SC
HE
MA
TIC
PO
WE
R A
ND
GR
OU
ND
PIN
S F
OR
U1
- N
OT
ON
SC
HE
MA
TIC
.01u
F
C8
CS
5
DS
CS
5
DS
.1uFC9
DG
ND
DG
ND
B A
87
65
D
56
78
CC
23
D
14 4
3
C
ON
FID
EN
TIA
L A
ND
C
ON
FID
EN
TIA
L A
ND
PR
OP
RIE
TA
RY
INF
OR
MA
TIO
N
B
2
PR
OC
ES
S:
PR
OD
UC
T L
INE
:
TIT
LE:
RE
SP
IRO
NIC
S IN
C.
DS
CA
LE
DR
AW
ING
NO
.D
RA
WIN
G N
O.
SIZ
E
A
1
PA
RT
NO
.
RE
V.
OF
SH
EE
T
B.4 Pressure Control
PCA
Pre
ssur
e C
ontr
ol B
oard
CPU
BiPAP Vision Service Manual
B-21
1045049
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
256
MO
TO
R C
ON
TR
OLL
ER
MO
TO
R C
ON
TR
OLL
ER
N/A
1001
365
S10
0136
5S
1001
365
SC
HE
MA
TIC
VIS
ION
MO
TG
ND
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:B
2
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:C
3
MURS120T3
CR4
MBRS1100T3
CR3
MO
TG
ND
MURS120T3
CR6
DR
IVE
C
DR
IVE
B
MBRS1100T3
CR2
MO
TG
ND
ZE
RO
R22
8
ZE
RO
R22
5M
TP
75N
06H
DQ
5
D
1
32
MT
P75
N06
HD
Q8
D
1
32
ZE
RO
R22
6M
TP
75N
06H
DQ
6
D
1
32
MT
P75
N06
HD
Q7
D
1
32
10.0K
R194
100V.1uF
C130
100V
.1uF
C12
2
100V
.1uF
C12
4
U12
- 4
8 =
MO
TG
ND
U12
- 4
7 =
MO
TG
ND
U12
- 4
6 =
MO
TG
ND
U12
- 4
5 =
MO
TG
ND
U12
- 4
4 =
MO
TG
ND
U12
- 4
1 =
MO
TG
ND
U12
- 4
0 =
MO
TG
ND
U12
- 3
9 =
MO
TG
ND
U12
- 3
8 =
MO
TG
ND
U12
- 3
7 =
MO
TG
ND
1000
pF
C2
4.99
K
R19
5
MO
TG
ND2W
.010R5
24.3KR27
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:A
1
C13
.1uF
MO
TG
ND
C7
1000
uF63
V
+
+24
V
MBRS1100T3
CR1 CR1
MO
TG
ND
MURS120T3
CR5
MO
TG
ND
DR
IVE
A
10R11
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:E
5
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:D
4
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:G
7
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:F
6
CO
NN
M 9
PIN
198
CO
NN
M 9
PIN
198
J5:I
J5:I
9C
ON
N M
9 P
IN 1
98C
ON
N M
9 P
IN 1
98
J5:H
8
10R6
10R7
10R8
10R10
*T
P10
C49
.1uF
C50
.1uF
MO
TG
ND
MO
TG
ND
MO
TG
ND
+24
V
U11
LM78
L15A
CM
VIN
8
GN
D7
GN
D6
NC
4G
ND
3G
ND
2
NC
5
VO
UT
1
100p
F
C13
6
100p
F
C13
7
100p
F
C13
8
ZE
RO
R22
7
MO
TG
ND
MO
TG
ND
MO
TG
ND
MO
TG
ND
PP
13P
P12
ZE
RO
R22
3M
TP
75N
06H
DQ
3
D
1
32
MT
P75
N06
HD
Q4
D
1
32
ZE
RO
R22
4
+24
V
100V.1uF
C129100V.1uF
C128
100V
.1uF
C12
3
PP
1C48
.1uF
+5V
10.0K
R236C
133
.01u
F
DG
ND8.66K
R235 R235
4.99K
R197 R197
+5V
+5V
*R49M
OT
GN
D
HA
LL-C
PW
M
ER
RO
R A
MP
AG
ND
BLO
WE
R_D
AC
.01u
F
C13
2
DG
ND
U34
:B
(7=
DG
ND
, 14=
+5V
)(7
=D
GN
D, 1
4=+
5V)
LM55
6CM
CR
TL
11
DS
CH
13
TS
HLD
12T
RIG
8
RS
10O
UT
9
+5V
15.0
K
R23
3
10.0
K
R24
3
274.
0K
R23
4
.22u
F
C13
5
24.9
K
R23
2
4.99
K
R23
7
U32
:AO
PA
4277
UA
(4=
+12
V, 1
1=-1
2V)
123
U12
- 2
4 =
MO
TG
ND
U12
- 2
3 =
MO
TG
ND
U12
- 2
2 =
MO
TG
ND
U12
- 2
1 =
MO
TG
ND
U12
- 1
6 =
MO
TG
ND
U12
- 1
5 =
MO
TG
ND
U12
- 1
4 =
MO
TG
ND
U12
- 1
3 =
MO
TG
ND
U22
:D
(3=
+12
V, 1
2=A
GN
D)
(3=
+12
V, 1
2=A
GN
D)
LM29
01131011
AG
ND
U34
:AU
34:A
(7=
DG
ND
, 14=
+5V
)LM
556C
MC
RT
L3
DS
CH
1
TS
HLD
2T
RIG
6
RS
4O
UT
5
PP
34
PP
33
PP
32P
P31
PP
30
+12
V
SP
AR
ES
+5V
+5V
SI9
979C
SU
12V
+42
VD
D
43 RT
/CT
17
GN
D12
FA
ULT
11T
AC
H10
BR
K9
PW
M8
Q7
F/A
6E
N5
60/1
204
HC
3H
B2
HA
1
IS+
19IS
-20
RT
18
GB
A33
SA
35C
AP
A36
GT
A34
GB
B29
SB
31C
AP
B32
GT
B30
GT
C26
CA
PC
28
SC
27
GB
C25
100
R19
8
MO
TG
ND
10.0
K
R19
6
MO
TO
RF
AU
LT
MO
TG
ND
1000
pF
C11
7
C15
1
47pF
U22
:B
(3=
+12
V, 1
2=A
GN
D)
LM29
01167
U22
:A
(3=
+12
V, 1
2=A
GN
D)
LM29
01245
.1uF
C13
4
AG
ND
AG
ND
CR25
MMBD914LT113
VR
EF
-BU
FV
RE
F-B
UF
BE
NA
BLE
MO
TO
R E
NA
BLE
(1
= R
UN
, 0 =
CO
AS
T)
MO
TO
R E
NA
BLE
(1
= R
UN
, 0 =
CO
AS
T)
+40
96 M
VD
C B
UF
FE
RE
D
+12
V
95.3K
R199
U22
:C
(3=
+12
V, 1
2=A
GN
D)
LM29
011489
AG
ND
MO
TO
RF
AU
LT
BS
PE
ED
CR
26
MM
BD
914L
T1
13
R23
8
1.00
MH
ALL
-C
MO
TO
RF
AU
LT
C11
8
1000
pF
SP
EE
D IN
DIC
AT
ION
(2
PU
LSE
/RE
V)
B A
87
65
D
56
78
CC
23
D
14 4
3
C
ON
FID
EN
TIA
L A
ND
PR
OP
RIE
TA
RY
INF
OR
MA
TIO
N
B
2
PR
OC
ES
S:
PR
OD
UC
T L
INE
:P
RO
DU
CT
LIN
E:
TIT
LE:
RE
SP
IRO
NIC
S IN
C.
DS
CA
LES
CA
LE
DR
AW
ING
NO
.S
IZE
A
1
PA
RT
NO
.P
AR
T N
O.
RE
V.
OF
SH
EE
TS
HE
ET
B.4 Pressure Control
PCA
Pre
ssur
e C
ontr
ol B
oard
- M
otor
Con
trol
ler
BiPAP Vision Service Manual
Appendix B: Schematics
B-22
1045049
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
356
CU
RR
EN
TF
AN
CO
NN
M 2
PIN
100
CO
NN
M 2
PIN
100
J12:
A1
+5V
AG
ND
4.99K 4.99KR12
CO
NN
M 2
PIN
100
CO
NN
M 2
PIN
100
J12:
B2
PR
ES
SU
RE
SE
NS
OR
SP
RE
SS
UR
E S
EN
SO
RS
N/A
1001
365
S10
0136
5
SC
HE
MA
TIC
VIS
ION
1.00
K
R25
4
UN
IT O
UT
LET
PR
ES
SU
RE
UN
IT O
UT
LET
PR
ES
SU
RE
(0 to
4V
= -
9 to
+70
cmH
2O)
(0 to
4V
= -
9 to
+70
cmH
2O)
ZE
RO
PR
ES
SU
RE
= +
475m
vZ
ER
O P
RE
SS
UR
E =
+47
5mv
PR
ES
SU
RE
BA
RO
ME
TR
IC
PR
ES
SU
RE
OU
TLE
T
OM
-DE
TE
CT
AIR
TE
MP
O2
TE
MP
O2-
FLO
W
J4:X
9BJ6
:X9B
OX
YG
EN
FLO
W(0
to 4
V =
-10
to +
150
SLP
M)
(0 to
4V
= -
10 to
+15
0 S
LPM
)Z
ER
O F
LOW
= +
256m
vJ4
:L12
AJ6
:L12
A
TO
TA
L F
LOW
TO
TA
L F
LOW
(0 to
4V
= -
100
to +
300
SLP
M)
ZE
RO
FLO
W =
+20
48m
vT
OT
AL-
FLO
W
PR
ES
SU
RE
PR
ES
SU
RE
PA
TIE
NT
J4:J
10A
J6:J
10A
J4:I
9AJ6
:I9A
J6:Y
10B
J4:Y
10B
J4:W
8B
J4:H
8A
J6:W
8B
J6:H
8A
O2T
EM
PO
2TE
MP
AIR
TE
MP
J4:T
5BJ6
:T5B
R46
1.00K
1.00K
R47
6.81KR149
47.5
KR
150
C100
.022uF
C98
.1uF
U32
:CU
32:C
OP
A42
77U
A(4
=+
12V
, 11=
-12V
)
89 10
AG
ND
1.00
K
R43
1.00
K
R44
1.00
K
R45
AD
C
PP
35
.1uF
C17
.1uF
C19
.1uF
C20
.1uF
C16
.1uF
C18
AG
ND
-5V
R48
499K 499K
AG
ND
AG
ND
AG
ND
U32
:DOP
A42
77U
A(4
=+
12V
, 11=
-12V
)
1413 12
C15
3
.1uF
C74
.022uF
DA
C-D
DA
C-D
SC
K
MIS
O
MO
SI
PC
S2
PC
S3
AF
M-D
ET
EC
T
OM
-DE
TE
CT
OM
-DE
TE
CT
J6:S
4BJ4
:S4B
AF
M-D
ET
EC
T
J6:E
5AJ4
:E5A
PC
S3
J6:C
3AJ4
:C3A
PC
S2
J4:D
4A
J6:D
4AM
OS
I
J4:R
3B
J6:R
3BM
ISO
J4:Q
2B
J6:Q
2BS
CK
J4:A
A12
B
J6:A
A12
B
DA
C-C
BLO
WE
R_D
AC
VR
EF
-BU
FV
RE
F-B
UF
PR
ES
SU
RE
OU
TLE
TB
AC
KU
PJ4
:U6B
J6:U
6B
PO
UT
_BU
PO
UT
_BU
PO
UT
_BU
J4:F
6AJ6
:F6A
VR
EF
-BU
FV
RE
F-B
UF
V_P
RV
V_I
LFR
VR
EF
-BU
F DA
C-B
DA
C-B
DA
C-A
DA
C-A
U25
MA
X53
6BC
WE
CS
9S
CK
10S
DO
11R
FC
D12
TP
13V
DD
14O
UT
D15
OU
TC
16
SD
I8
LDA
C7
RF
AB
5
DG
ND
6
AG
ND
4V
SS
3O
UT
A2
OU
TB
1P
RV
DR
IVE
(0V
= O
FF
, 4V
= F
ULL
ON
)P
RV
DR
IVE
(0V
= O
FF
, 4V
= F
ULL
ON
)IL
FR
DR
IVE
(0V
= O
FF
, 4V
= F
ULL
ON
)IL
FR
DR
IVE
(0V
= O
FF
, 4V
= F
ULL
ON
)
RE
F_D
AC
DA
CU
32:B O
PA
4277
UA
(4=
+12
V, 1
1=-1
2V)
765
-5V
4.7u
F20
V
C63+
CR
13
SG
L41-
60A
GN
DV
RE
F
PC
S1
MO
SI
SC
KM
ISO
C25
.1uF
OX
YG
EN
VA
LVE
DR
IVE
(4V
= F
ULL
ON
)O
XY
GE
N V
ALV
E D
RIV
E (
4V =
FU
LL O
N)
PO
UT
_BU
AG
ND
1.00
KR
17
1.00
KR
18
DG
ND
BLO
WE
R M
OT
OR
DR
IVE
(4V
= M
AX
IMU
M S
PE
ED
)B
LOW
ER
MO
TO
R D
RIV
E (
4V =
MA
XIM
UM
SP
EE
D)
VR
EF
-BU
FV
RE
F-B
UF
RE
F_D
AC
C54
.1uF
U31
:B OP
A42
77U
A(4
=+
12V
, 11=
-12V
)
765
C55
.1uF
UN
IT O
UT
LET
PR
ES
SU
RE
(0 to
4V
= -
9 to
+70
cmH
2O)
ZE
RO
PR
ES
SU
RE
= +
475m
v
47.5
KR
76
C72
.1uF
6.81
KR
75
C71
.022uF
0.1%
25p
pm/C
499
R82
.1%
25P
PM
432
R74
0.1%
25p
pm/C
10.0
KR
81
U31
:C
OP
A42
77U
A(4
=+
12V
, 11=
-12V
)
89 10
+10
.0V
AG
ND
.1uF
C23
C70
.1uF
C87
.1uF
10R19
+5V
AG
ND
AG
ND
+12
V
-12V
U13
AD
620A
RRE
F5
OU
T6
+V
S7
RG
8
-VS
4+
IN3
-IN
2R
G1
*
*C
R7
MM
BD
301L
T1
CR
8
MM
BD
301L
T1
TP
3
TP
6
U31
:A
(4=
+12
V, 1
1=-1
2V)
(4=
+12
V, 1
1=-1
2V)
OP
A42
77U
A
123
.1uF
C11
9
RE
F_D
AC
VR
EF
-BU
F10
.0K
R65
C24
.1uF
AG
ND47.5K
R80
4.7u
FC
61
20V+
Q2
BS
S12
3LT
1
D
1
23
AG
ND
AG
ND
+12
VE
EP
RO
M
MIS
O
ELC
OR
RE
SE
T W
ILL
CLA
MP
VR
EF
AN
D S
HU
T O
FF
DA
C O
UT
PU
TS
ELC
OR
RE
SE
T W
ILL
CLA
MP
VR
EF
AN
D S
HU
T O
FF
DA
C O
UT
PU
TS
.1uF
C86
ELC
RE
SE
T
+5V
SC
K
MO
SI
DG
ND
CS
9
DG
ND
MO
SI
SC
K
MIS
O
U33
NM
93C
66E
M8
GN
D5
VC
C8
SD
O4
SD
I3
CS
1
SD
K2
O2T
EM
PO
2TE
MP
PC
S1
PC
S1
SC
K
MO
SI
VR
EF
-BU
F
V_O
2
PC
S0
AG
ND
R73
8.25
K
8.25
K
R72
AG
ND
AG
ND
SM
5652
MT
3+
V4
-SO
1
-V2
+S
O3
U31
:DOP
A42
77U
A(4
=+
12V
, 11=
-12V
)
1413 12
+10
.0V
1uF
C46
C51
.1uF
C15
.1uF
6.81
KR
7747
.5K
R79
.1%
25P
PM
383
R57
TP
5
C84
.1uF
C26
.1uF
AG
ND
(+28
10m
v =
29.
92 in
Hg
norm
al s
ea le
vel)
(+28
10m
v =
29.
92 in
Hg
norm
al s
ea le
vel)
21 to
34
inH
g0
to 4
VD
C e
qual
s0
to 4
VD
C e
qual
sB
AR
OM
ET
RIC
PR
ES
SU
RE
BA
RO
ME
TR
IC P
RE
SS
UR
E
AG
ND
-12V
U6
U6
AD
620A
RRE
F5
OU
T6
+V
S7
RG
8
-VS
4+
IN3
-IN
2R
G1
+12
V
C75
.1uF
(+91
0mV
= z
ero
pres
sure
)-2
0 to
+70
cm
H2O
0 to
4 V
DC
equ
als
0 to
4 V
DC
equ
als
PA
TIE
NT
PR
ES
SU
RE
PA
TIE
NT
PR
ES
SU
RE
C29
.1uF
C30
.1uF
U26
MA
X18
6CC
AP
VR
EF
11S
HD
N10
RF
AD
J12
VD
D20
VS
S9
AG
ND
13D
GN
D14
DO
UT
15S
ST
RB
16D
IN17
CS
18S
CLK
19
CH
78
CH
67
CH
56
CH
45
CH
34
CH
23
CH
12
CH
01
AG
ND
4.7u
FC
64
20V+
.01u
F
C28
C62 20
V4.
7uF
+D
GN
D AG
ND
* TP
1
PP
36
AG
ND
AG
ND
4.7u
F20
V
C65
+
.1%
25P
PM
232
R55
+12
VC78
.1uF
AG
ND
MO
SI
MIS
O
SC
K
VR
EF
TP
2
C68
.1uF
U5
AD
620A
RRE
F5
OU
T6
+V
S7
RG
8
-VS
4+
IN3
-IN
2R
G1
-12V
AG
ND
0.1% 25PPM2.87KR137 R137
0.1%
25P
PM
14.3
KR
54
VR
EF
-BU
F
VR
EF
-BU
F
0.1% 25ppm/C 0.1% 25ppm/C10.0KR165
0.1%
25p
pm/C
10.0
KR
50
0.1% 25ppm/C10.0KR26
0.1%
25p
pm/C
10.0
KR
25
1uF
C3
AG
ND
C27
.1uFC4
.1uF
AG
ND
R62
8.25
K
8.25
K
R60
+10
V
AG
ND
U14
:A
OP
A42
77U
A(4
=+
12V
, 11=
-12V
)(4
=+
12V
, 11=
-12V
)
123
MT
10-
1 P
SI
TP+ 1
TP- 6VS
2
GN
D4
VO
-5V
O+
3
U14
:D
OP
A42
77U
A(4
=+
12V
, 11=
-12V
)
141312
+10
V
U14
:B
(4=
+12
V, 1
1=-1
2V)
OP
A42
77U
A
765 0.
1% 2
5PP
M16
.2K
R91
0.1%
25P
PM
14.3
KR
84
VR
EF
-BU
F
MT
20-
15 P
SI
TP
- 6
TP
+
1
VS
2
GN
D4
VO
-5V
O+
3
AG
ND0.
1% 2
5ppm
/C10
.0K
R93
0.1%
25p
pm/C
10.0
KR
90AG
ND
0.1% 25ppm/C10.0K 10.0KR85
AG
ND
C81
.1uF
C67
.1uF
AG
ND
100K
R59
4.7u
FC
5
20V+
100K
R56
U14
:C
(4=
+12
V, 1
1=-1
2V)
OP
A42
77U
A
89 10
AG
ND
B A
87
65
D
56
78
CC
23
D
14 4
3
C
ON
FID
EN
TIA
L A
ND
C
ON
FID
EN
TIA
L A
ND
PR
OP
RIE
TA
RY
INF
OR
MA
TIO
N
B
2
PR
OC
ES
S:
PR
OD
UC
T L
INE
:
TIT
LE:
RE
SP
IRO
NIC
S IN
C.
DS
CA
LES
CA
LE
DR
AW
ING
NO
.D
RA
WIN
G N
O.
SIZ
E
A
1
PA
RT
NO
.
RE
V.
OF
SH
EE
T
B.4 Pressure Control
PCA
Pre
ssur
e C
ontr
ol B
oard
- P
ress
ure
Sens
ors
BiPAP Vision Service Manual
B-23
1045049
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
445566
U18
U18
OP
A54
4O
PA
544
55 33
442211
U9
U9
PI5
A31
9AW
PI5
A31
9AWU
NU
N55
VC
CV
CC
44
NC
NC
22
ININ66
NO
NO
88
UN
UN
77
GN
DG
ND
33
CO
MC
OM
11
11R61 R61
PP
50P
P50
0.1%
25p
pm/C
0.1%
25p
pm/C
40.2
K40
.2K
R64
R64
ILF
R D
RIV
EIL
FR
DR
IVE
CO
NN
EC
TO
RC
ON
NE
CT
OR
ILF
RIL
FR
V_I
LFR
V_I
LFR
ILF
R_O
PE
NIL
FR
_OP
EN
0.1%
25p
pm/C
0.1%
25p
pm/C
10.0
K10
.0K
R63
R63
MO
TG
ND
MO
TG
ND
MO
TG
ND
MO
TG
ND
MO
TG
ND
MO
TG
ND
J8:B
J8:B
22
J8:A
J8:A
11
J8:C
J8:C
33
C45 C45
.01uF .01uF
-12V
-12V
C44 C44
.1uF .1uF
MO
TG
ND
MO
TG
ND
0.1%
25p
pm/C
0.1%
25p
pm/C
10.0
K10
.0K
R37
R37
MO
TG
ND
MO
TG
ND
MO
TG
ND
MO
TG
ND
10.0
K10
.0K
R15
R15
ELC
ELC
ELC
ELC
U2:
CU
2:C
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
AM
C74
HC
14A
5566
VA
LVE
DR
IVE
RS
/ E
LCV
ALV
E D
RIV
ER
S /
ELC
N/A
N/A
1001
365
1001
365
S10
0136
5S
1001
365
SC
HE
MA
TIC
SC
HE
MA
TIC
VIS
ION
VIS
ION
DG
ND
DG
ND
PP
44P
P44
PP
43P
P43
U2:
FU
2:F
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
AM
C74
HC
14A
13131212
11R52 R52
CO
NN
EC
TO
RC
ON
NE
CT
OR
PR
VP
RV
MO
TG
ND
MO
TG
ND
C43 C43120uF 120uF50V 50V
++ C42
C42
.1uF
.1uF
MO
TG
ND
MO
TG
ND
MO
TG
ND
MO
TG
NDM
OT
GN
DM
OT
GN
DJ7:B
J7:B
22
J7:A
J7:A
11
C41 C41
.01uF .01uF
-12V
-12VC39 C39
120uF 120uF50V 50V
++ C38
C38
.1uF
.1uF
PP
49P
P49
PR
V D
RIV
EP
RV
DR
IVE
60V
.5A
60V
.5A
PS
1P
S1
+24
V+
24V
C37
C37
.1uF
.1uF
274K
274K
R39
R39
+5V
+5V
MO
TG
ND
MO
TG
ND
V_P
RV
V_P
RV
PR
V_O
PE
NP
RV
_OP
EN
60V
.5A
60V
.5A
PS
2P
S2
MO
TG
ND
MO
TG
ND
0.1%
25p
pm/C
0.1%
25p
pm/C
10.0
K10
.0K
R53
R53
C40 C40
.1uF .1uF
MO
TG
ND
MO
TG
ND0.
1% 2
5ppm
/C0.
1% 2
5ppm
/C10
.0K
10.0
KR
40R
40
C36
C36
.1uF
.1uF
-12V
-12V
274K
274K
R16
R16
MO
TG
ND
MO
TG
ND
+24
V+
24V
-12V
-12V
10.0
K10
.0K
R38
R38
+5V
+5V
MO
TG
ND
MO
TG
ND
MO
TG
ND
MO
TG
ND
0.1%
25p
pm/C
0.1%
25p
pm/C
40.2
K40
.2K
R58
R58
PP
48P
P48
PP
51P
P51
U10
U10
PI5
A31
9AW
PI5
A31
9AWU
NU
N55
VC
CV
CC
44
NC
NC
22
ININ66
NO
NO
88
UN
UN
77
GN
DG
ND
33
CO
MC
OM
11
U15
U15
OP
A54
4O
PA
544
55 33
442211
J15:
DJ1
5:D
CO
NN
M 6
PIN
165
CO
NN
M 6
PIN
165
44
J15:
EJ1
5:E
CO
NN
M 6
PIN
165
CO
NN
M 6
PIN
165
55
J15:
FJ1
5:F
CO
NN
M 6
PIN
165
CO
NN
M 6
PIN
165
66
J15:
BJ1
5:B
CO
NN
M 6
PIN
165
CO
NN
M 6
PIN
165
22
J15:
CJ1
5:C
CO
NN
M 6
PIN
165
CO
NN
M 6
PIN
165
33D
CS
(N
EW
ST
YLE
)D
CS
(N
EW
ST
YLE
)C
ON
NE
CT
OR
FO
R T
HE
CO
NN
EC
TO
R F
OR
TH
EA
LTE
RN
AT
E P
OW
ER
ALT
ER
NA
TE
PO
WE
R
J15:
AJ1
5:A
CO
NN
M 6
PIN
165
CO
NN
M 6
PIN
165
11
J11:
AJ1
1:A
11
J11:
BJ1
1:B
22
J11:
CJ1
1:C
33
J11:
DJ1
1:D
44
J1:A
J1:A
11
J1:B
J1:B
22 CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:C
J1:C
33 CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:D
J1:D
44
+12
V+
12V
N.C
.N
.C.
TO
TH
E M
CS
TO
TH
E M
CS
CO
NN
EC
TIO
N C
ON
NE
CT
ION
"P
AS
S T
HR
U"
"P
AS
S T
HR
U"
J11
J11
+24
V+
24V
24V
-OM
24V
-OM
J6-1
5A, 1
5B
OM
VA
LVE
J6-1
5A, 1
5B
OM
VA
LVE
+24
V+
24V
AC
FA
ILA
CF
AIL
60V
750
MA
60V
750
MA
PS
3P
S3
MO
TG
ND
MO
TG
ND
AG
ND
AG
ND
CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:J
J1:J
1010CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:I
J1:I
99CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:F
J1:F
66 CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:G
J1:G
77 CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:H
J1:H
88
N.C
.N
.C.
N.C
.N
.C.
N.C
.N
.C.
J11:
HJ1
1:H
88
J11:
GJ1
1:G
77
J11:
FJ1
1:F
66
J11:
JJ1
1:J1
010
J11:
IJ1
1:I99
+5V
+5V
OF
F/O
NO
FF
/ON
J11:
EJ1
1:E
55N
.C.
N.C
.
DG
ND
DG
ND
CO
NN
M 1
0 P
IN 1
56C
ON
N M
10
PIN
156
J1:E
J1:E
55
-12V
-12V
C32 C32
.1uF .1uF
DG
ND
DG
ND
DG
ND
DG
ND
DG
ND
DG
ND
Q9
Q9
BS
S12
3LT
1B
SS
123L
T1
C31 C31
.01uF .01uF
U2:
AU
2:A
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
AM
C74
HC
14A
1122
U2:
EU
2:E
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
AM
C74
HC
14A
11111010
U2:
DU
2:D
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
AM
C74
HC
14A
9988
SP
AR
ES
SP
AR
ES
PP
42P
P42
DG
ND
DG
ND
DG
ND
DG
ND
1.00
K1.
00K
R78
R78
LM40
40B
IM3-
10.0
LM40
40B
IM3-
10.0
U16
U16
AG
ND
AG
ND
C73
C73
.1uF
.1uF
+10
.0V
+10
.0V
+12
V+
12V
PP
41P
P41
ELC
ELC +5V
+5V
U2:
BU
2:B
(7=
DG
ND
,14=
+5V
)(7
=D
GN
D,1
4=+
5V)
MC
74H
C14
AM
C74
HC
14A
3344
221K
221K
R21
R21
FL16 FL16
1000pf 1000pf22 11
10.0K 10.0KR22 R22
DG
ND
DG
ND
AG
ND
AG
ND
AG
ND
AG
ND
C69
C69
4.7u
F4.
7uF
20V
20V
++
-5V
-5V
-12V
-12V
U17
U17
79L0
5VA
S79
L05V
AS
GN
DG
ND
11
ININ22
OU
TO
UT
33
LIN
EA
R -
12V
TO
-5V
RE
GU
LAT
OR
LIN
EA
R -
12V
TO
-5V
RE
GU
LAT
OR
C66
C66 20
V20
V4.
7uF
4.7u
F
++
ELC
SIG
NA
LE
LCS
IGN
AL
ELC
AC
TE
LCA
CT
22.1
K22
.1K
R20
R20
BB AA
8877
6655
DD
5566
7788
CCCC
2233
DD
1144 44
33
C
ON
FID
EN
TIA
L A
ND
C
ON
FID
EN
TIA
L A
ND
PR
OP
RIE
TA
RY
INF
OR
MA
TIO
NP
RO
PR
IET
AR
Y IN
FO
RM
AT
ION
BB
22
PR
OC
ES
S:
PR
OC
ES
S:
PR
OD
UC
T L
INE
:P
RO
DU
CT
LIN
E:
TIT
LE:
TIT
LE:
RE
SP
IRO
NIC
S IN
C.
RE
SP
IRO
NIC
S IN
C.
DDS
CA
LES
CA
LE
DR
AW
ING
NO
.D
RA
WIN
G N
O.
SIZ
ES
IZE
AA
11
PA
RT
NO
.P
AR
T N
O.
RE
V.
RE
V.
OF
OF
SH
EE
TS
HE
ET
B.4 Pressure Control
PCA
Pre
ssur
e C
ontr
ol B
oard
- Va
lve
Dri
vers
/ E
LC
BiPAP Vision Service Manual
Appendix B: Schematics
B-24
1045049
PC
A V
ISIO
N P
RE
SS
UR
E C
ON
TR
OL
BD
556
MO
TG
ND 24
V-O
M
J6:A
C14
B
J6:A
D15
B
J6:O
15A
BY
PA
SS
- P
ULL
UP
- IC
B D
AT
AB
US
BY
PA
SS
- P
ULL
UP
- IC
B D
AT
AB
US
FL1
NF
M61
R30
T47
2N
FM
61R
30T
472
2
31
N/A
1001
365
S10
0136
5
SC
HE
MA
TIC
VIS
IONAG
ND
AG
ND
J6:Z
11B
J6:V
7B
J6:A
B13
B
J6:G
7A
J6:B
2A
J6:N
14A
J6:M
13A
J6:K
11A
FL4
NF
M60
R30
T22
2N
FM
60R
30T
222
2
31
-12V
MO
DU
LEO
XY
GE
NJ6
AG
ND
DG
ND
D13
D14
D15D9
D11
D12
D10
47.5
KR
144
47.5
KR
145
47.5
KR
147
47.5
KR
146
47.5
KR
142
47.5
KR
143
D4
D3
D8
47.5
KR
135
47.5
KR
134
47.5
KR
139
47.5
KR
138
47.5
KR
140
D6
47.5
KR
136
47.5
KR
141
D2
D5
D7
J3:S
19
J3:U
21
J3:T
20
J3:W
23
J3:V
22
J3:X
24R
XD
TX
D
DG
ND
FR
OM
DC
S24
PIN
HE
AD
ER
47.5
KR
148
+5V
DG
NDC
33 10uF
10V
+C
34 10uF
10V
+
AR
OU
ND
U1
PLA
CE
TH
ES
E C
AP
S
MO
TG
ND
J4:O
15A
J4:N
14A
J4:K
11A
J4:M
13A
J4:Z
11B
J4:A
B13
B
J4:A
C14
B
J4:A
D15
B
J6:A
1A
J6:P
1B
FL3
NF
M60
R30
T22
2
2
31
MO
DU
LEA
IR F
LOW
J4
AG
ND
+12
VA
GN
DJ4:P
1B
J4:A
1A
J4:B
2A
FL2
NF
M60
R30
T22
2
2
31
DG
ND
+5V
DG
ND J4
:G7A
J4:V
7B
+5V
47.5
KR
114
47.5
KR
115
47.5
KR
116
47.5
KR
117
47.5
KR
118
47.5
KR
119
47.5
KR
120
A2
A5
A6
A3
A4
A8
A7
A1
PA
SS
TH
RU
CO
NN
EC
TO
RT
O M
CS
ICB
DA
TA
BU
S
FR
OM
DC
S24
PIN
HE
AD
ER
A17
47.5
KR
130
47.5
KR
132
47.5
KR
133
+5V
D1
A16
D0
47.5
KR
129
47.5
KR
128
47.5
KR
124
47.5
KR
127
47.5
KR
123
A14
47.5
KR
121
47.5
KR
122
A9
47.5
KR
125
A11
A10
A12
A15
A13
47.5
KR
126
J3:A
1
J3:C
3
J3:B
2
J3:G
7
J3:F
6
J3:E
5
J3:D
4
J3:I
9
J3:H
8
AD
S
J3:L
12J3
:M13
J3:J
10J3
:K11
J3:P
16J3
:Q17
J3:N
14J3
:O15
J3:R
18
AT
N
AC
K
ELC
SIG
NA
L
J2:T
20J2
:U21
J2:V
22
J2:Q
17
J2:S
19
J2:R
18
FL12 FL12NFM51R20P207
2
3 1
FL11 FL11NFM51R20P207
2
3 1
FL10 FL10NFM51R20P207
2
3 1
ICB
DA
TA
4F
DG
ND
DG
ND
DG
ND
ICB
DA
TA
5F
22.1KR94
22.1KR95
22.1KR92
AT
N
22.1KR89
AD
S
PP
39P
P40
PP
45P
P46
22.1KR86
22.1KR87
22.1KR88
22.1KR83
FL9NFM51R20P207
2
3 1
FL14NFM51R20P207
2
3 1
FL13NFM51R20P207
2
3 1
22.1
KR
97+
5V+
5V
AT
NF
DG
ND
22.1
KR
96
DG
ND
DG
ND A
DS
F
ICB
DA
TA
6F
ICB
DA
TA
7F
J2:M
13
J2:P
16
J2:O
15
J2:N
14
+5V
PP
47D
GN
D
FL5NFM51R20P207
2
3 1
FL6NFM51R20P207
2
3 1
FL7NFM51R20P207
2
3 1
FL8NFM51R20P207
2
3 1
ICB
DA
TA
3F
ICB
DA
TA
2F
ICB
DA
TA
1F
ICB
DA
TA
0F
DG
ND
DG
ND +5V
DG
ND
DG
ND
+5V
+5V
***** *(OLD
ST
YLE
)H
EA
DE
R F
RO
M D
CS
ALT
ER
NA
TE
20
PIN
J13:
A1A
J13:
B2A
J13:
C3A
J13:
F6A
J13:
D4A
J13:
E5A
ELC
SIG
NA
LF
ICB
DA
TA
0F
ICB
DA
TA
1FD
GN
D
AD
DR
ES
S_B
US
DA
TA
_BU
S
ICB
INT
ER
FA
CE
D0
D1
D2
D6
D3
D5
D4
U4
AT
V25
00S
(11,
12=
+5V
, 4,2
6,33
,34=
DG
ND
)(1
1,12
=+
5V, 4
,26,
33,3
4=D
GN
D)
IN8
2
IN3
22
NC
44
NC
43
NC
42
NC
40
NC
32
I/O0
5I/O
16
I/O2
7I/O
38
I/O4
9
IN9
1
IN0
19
I/O15
15
I/O14
16
I/O13
17
I/O12
18
I/O21
30
I/O20
29
I/O19
28
I/O9
37I/O
739
I/O8
38
I/O18
27
IN6
25
IN13
41
IN5
24
IN1
20
IN7
3
I/O11
35
IN2
21
IN4
23
I/O22
31I/O
1713
I/O16
14
I/O5
10
I/O10
36
FL15NFM51R20P207
2
3 1
22.1
KR
98
DG
ND
+5V
AC
K
D7
A1
A2
A3
*********J1
3:G
7A
J13:
H8A
J13:
I9A
J13:
M3B
J13:
L2B
J13:
K1B
J13:
J10
A J13:
O5B
J13:
N4B
ICB
DA
TA
2F
ICB
DA
TA
3F
AD
SF
AT
NF
ICB
DA
TA
6F
ICB
DA
TA
7F
ICB
DA
TA
4F
ICB
DA
TA
5F
**** *J1
3:T
10BJ1
3:Q
7B
J13:
P6B
J13:
S9B
J13:
R8B R
/W
DG
ND
ELC
CS
5
AC
KF
N.C
.
N.C
.N
.C.
U1
U1
U1
C92
.1uF
C114
.1uF
C93
.1uFC94
.1uF
U32
U31
U14
AG
ND
-12V
PIN
54
DG
NDC121
.1uF+5V
PIN
124
DG
ND
DG
ND
C127
.1uF
PIN
113
+5V
+5V
C88
.1uFC89
.1uFC90
.1uF
U32
U31
J2:W
23
J2:X
24
J2:B
2J2
:C3
J2:A
1
J2:F
6
J2:G
7
J2:D
4J2
:E5
J2:H
8J2
:I9
J2:L
12
J2:K
11
J2:J
10
U1
U1
C112
.1uF
C110
.1uFF
L17
NF
M51
R20
P20
7
2
31
ELC
SIG
NA
LF
DG
ND
ELC
SIG
NA
L
DG
ND
PIN
40
DG
ND
DG
ND
DG
NDC108
.1uF
PIN
8
+5V
PIN
21
+5V
+5V
U1
U1
U1
ELC
SIG
NA
LE
LCS
IGN
AL
PIN
61
PIN
59
RX
D
TX
D
AD
SIN
T
RX
D
TX
D
SN
DIN
T
DS
RC
VIN
T
RE
SE
T
CLK
OU
T
BY
PA
SS
CA
PA
CIT
OR
S
AC
KF
DG
ND
DG
NDC58
.1uF
C106
.1uF
PIN
1
+5V
+5V
U14
U20
U27
U34
C77
.1uF
C76
.1uF
U22
C83
.1uF
AG
ND
C80
.1uF
+12
VD
GN
D
PIN
98
+5V
C125
.1uF
U1
U1
DG
ND
PIN
84
+5V
+5V
C126
.1uF
U1
U2
U3
U4
U7
U8
C6
.1uFC21
.1uF
C79
.1uF
DG
ND
C60
.1uF
C59
.1uF
B A
87
65
D
56
78
CC
23
D
14 4
3
C
ON
FID
EN
TIA
L A
ND
PR
OP
RIE
TA
RY
INF
OR
MA
TIO
N
B
2
PR
OC
ES
S:
PR
OD
UC
T L
INE
:
TIT
LE:
RE
SP
IRO
NIC
S IN
C.
DS
CA
LES
CA
LE
DR
AW
ING
NO
.S
IZE
A
1
PA
RT
NO
.P
AR
T N
O.
RE
V.
OF
SH
EE
T
B.4 Pressure Control
PCA
Pre
ssur
e C
ontr
ol B
oard
- B
ypas
s-Pu
llup-
ICB
Dat
abus
BiPAP Vision Service Manual
B-25
1045049
Air
Flo
w M
odu
le
B.5 Air Flow Module (AFM)
BiPAP Vision Service Manual
Appendix B: Schematics
B-26
1045049
Oxy
gen
Mod
ule
B.6 Oxygen Module (OM)
44 1111
VIS
ION
OX
YG
EN
MO
DU
LEV
ISIO
N O
XY
GE
N M
OD
ULE
PC
AP
CA
1000
699
1000
699
S10
0069
9S
1000
699
SC
HE
MA
TIC
SC
HE
MA
TIC
VIS
ION
VIS
ION
C15
C15
4.7u
F4.
7uF
20V
20V
++-1
2V-1
2V
C8 C8
.1uF .1uF
AG
ND
AG
ND
AG
ND
AG
ND
AG
ND
AG
ND
J1:M
J1:M13
A13
A
J1:A
BJ1
:AB13
B13
B
N/A
N/A
TP
14T
P14
TP
13T
P13
TP
12T
P12
+12
V+
12V
+12
V+
12V
AG
ND
AG
ND
C20 C20
22pF 22pF
C2 C2
.1uF .1uF
+12
VD
C IN
PU
T+
12V
DC
INP
UT
J1:K
J1:K11
A11
A
C14
C14
4.7u
F4.
7uF
20V
20V
++
AG
ND
AG
ND
AG
ND
AG
ND
J1:G
J1:G7A7A
J1:V
J1:V7B7B
AG
ND
AG
ND
-12V
DC
INP
UT
-12V
DC
INP
UT
J1:Z
J1:Z11
B11
B-1
2V-1
2V
XC
2:B
XC
2:B
115
OH
MS
@ 1
00 M
HZ
115
OH
MS
@ 1
00 M
HZ
2277
AG
ND
AG
ND
.1uF .1uF
C3 C3
C4 C4
.1uF .1uF
U4
U4
U4
U4
J1:I
J1:I9A9A
J1:H
J1:H8A8A
J1:U
J1:U6B6B
J1:S
J1:S4B4B
J1:C
J1:C3A3A
U1
U1
U1
U1
+12
V+
12V
C7 C7
1uF 1uF
-12V
-12V
XC
2:A
XC
2:A
115
OH
MS
@ 1
00 M
HZ
115
OH
MS
@ 1
00 M
HZ
8811 XC
2:C
XC
2:C
115
OH
MS
@ 1
00 M
HZ
115
OH
MS
@ 1
00 M
HZ
6633
C28 C28
.1uF .1uF+
12V
_P+
12V
_P
PW
RG
ND
PW
RG
ND
XC
2:D
XC
2:D
115
OH
MS
@ 1
00 M
HZ
115
OH
MS
@ 1
00 M
HZ
5544
AG
ND
AG
ND
C29 C29
.1uF .1uF
+12
V+
12V
AG
ND
AG
ND
J1:L
J1:L12
A12
AJ1
:YJ1
:Y10B
10B
J1:J
J1:J10
A10
A
C9 C9
.1uF .1uF
C6 C6
.1uF .1uF
-12V
-12V
1.00
K1.
00K
R23
R23
TP
9T
P9
47.5
K47
.5K
R15
R15
DG
ND
DG
ND
MO
SI
MO
SI
DG
ND
DG
ND
OM
-DE
TE
CT
OM
-DE
TE
CT
J1:D
J1:D4A4A
J1:P
J1:P1B1B
J1:T
J1:T5B5B
DG
ND
DG
ND
J1:A
J1:A1A1A
O2
TE
MP
O2
TE
MP
121
121
R6
R6
AG
ND
AG
ND
O2
FLO
WO
2 F
LOW
J1:X
J1:X9B9B
C19 C19
22pF 22pF
J1:W
J1:W
8B8B
121
121
R4
R4
+25
6mv
+25
6mv
OX
YG
EN
FLO
W (
+4V
, FS
)O
XY
GE
N F
LOW
(+
4V, F
S)
At Z
ER
O F
LOW
At Z
ER
O F
LOW
1.00
K1.
00K
R29
R29
1.00
K1.
00K
R20
R20
1.00
K1.
00K
R28
R28
TP
17T
P17
TP
18T
P18
+5V
DIG
+5V
DIG
J1:B
J1:B2A2A
SC
KS
CK
PC
S3
PC
S3
J1:Q
J1:Q2B2B
J1:E
J1:E5A5AO
M-J
1O
M-J
1
MIS
OM
ISO
DG
ND
DG
ND
J1:R
J1:R3B3B
DG
ND
DG
NDC
30C
304.
7uF
4.7u
F20
V20
V
++
+5V
+5V
DG
ND
DG
ND
C1
C1
.1uF
.1uF
R11
R11
649
649
AG
ND
AG
ND
49.9
K49
.9K
R12
R12
OP
A42
77U
AO
PA
4277
UA
(4=
+12
V, 1
1=-1
2V)
(4=
+12
V, 1
1=-1
2V)
U1:
CU
1:C
8899 1010
+10
V+
10V
AG
ND
AG
ND20.0K 20.0K
R14 R1480.6K 80.6KR13 R13
U1:
DU
1:D O
PA
4277
UA
OP
A42
77U
A(4
=+
12V
, 11=
-12V
)(4
=+
12V
, 11=
-12V
)
141413131212
-12V
-12V
23.7
K23
.7K
R10
R10
+12
V+
12V
U4
U4
AD
620A
RA
D62
0AR
RE
FR
EF
55O
UT
OU
T66
+V
S+
VS
77
RG
RG
88
-VS
-VS
44+
IN+
IN33
-IN
-IN
22R
GR
G11
C21 C21
.22uF .22uFAG
ND
AG
ND
C10 C10
1uF 1uF
AP
PR
OX
2V
AT
70
DE
G F
.A
PP
RO
X 2
V A
T 7
0 D
EG
F.
U5
U5
NM
93C
66E
M8
NM
93C
66E
M8
GN
DG
ND
55
VC
CV
CC
88
SD
OS
DO
44
SD
IS
DI
33
CS
CS
11
SD
KS
DK
22
TP
16T
P16
TP
8T
P8
TP
4T
P4
200
200
R41
R41
CWCW22
33
11
0.1% 25ppm/C 0.1% 25ppm/C
R26 R26
24.9K 24.9K
0.1% 25ppm/C 0.1% 25ppm/C
R3 R3
24.9K 24.9K
AG
ND
AG
ND
(4=
+12
V, 1
1=-1
2V)
(4=
+12
V, 1
1=-1
2V)
U1:
AU
1:A
OP
A42
77U
AO
PA
4277
UA
1122 33
+12
V+
12V
MT
1M
T1
200
SC
CM
/0.2
IN H
2020
0 S
CC
M/0
.2IN
H20
HC
O4
HC
O444
GN
D1
GN
D111
HC
-3H
C-3
33H
C+
5H
C+
555
VS
6V
S6
66
VS
2V
S2
22
R22 R22
4.99K 4.99K
8.25
K8.
25K
R1
R1
+6V
DC
+6V
DC
+6V
DC
+6V
DC
8.25
K8.
25K
R2
R2
BR
IDG
E
BR
IDG
E
+10
V+
10V
1.82
K1.
82K
R21
R21
BA
LAN
CE
BA
LAN
CE
0.1% 25ppm/C 0.1% 25ppm/C
R19 R19
4.99K 4.99K0.1% 25ppm/C 0.1% 25ppm/C
R18 R18
15K 15K
+10
V+
10V
C13 C13
1000pF 1000pF
+12
V+
12V
+2.
5V+
2.5V
383 383R7 R7
U7
U7
TL4
31C
PK
TL4
31C
PK
33 22
11
TP
11T
P11
OM
-J1
OM
-J1
TP
2T
P2
J2:A
J2:A
CO
NN
M 2
PIN
200
CO
NN
M 2
PIN
200
11
OM
-J2
OM
-J2
1000
uF10
00uF
C24
C24
63V
63V
++
PW
RG
ND
PW
RG
ND
PW
RG
ND
PW
RG
ND
+24
V +
24V
+24
V +
24V
C5 C5
.1uF .1uF
PW
RG
ND
PW
RG
ND
J1:A
DJ1
:AD
15B
15B
J1:O
J1:O
15A
15A
J1:N
J1:N
14A
14A
J1:A
CJ1
:AC
14B
14B
TP
19T
P19
-12V
_P-1
2V_P
PW
RG
ND
PW
RG
ND
U2
U2
C18 C18
.1uF .1uF
(3=
+12
V_P
, 12=
-12V
_P)
(3=
+12
V_P
, 12=
-12V
_P)
U2:
CU
2:C
LM29
01LM
2901
141488 99
PW
RG
ND
PW
RG
ND
+12
V_P
+12
V_P
TP
6T
P6
AG
ND
AG
ND
(4=
+12
V, 1
1=-1
2V)
(4=
+12
V, 1
1=-1
2V)
U1:
BU
1:BO
PA
4277
UA
OP
A42
77U
A
7766 55
+12
V_P
+12
V_P
PW
RG
ND
PW
RG
ND
.1uF
.1uF
C12
C12
U2
U2
PW
RG
ND
PW
RG
ND
-12V
_P-1
2V_P
(3=
+12
V_P
, 12=
-12V
_P)
(3=
+12
V_P
, 12=
-12V
_P)
U2:
DU
2:D
LM29
01LM
2901
13131010 1111
TP
5T
P5
TP
1T
P1
TP
3T
P3
AG
ND
AG
ND
AG
ND
AG
ND
+12
V_P
+12
V_P
AG
ND
AG
ND
C11 C11
.1uF .1uF
C17 C17
.1uF .1uF
PW
RG
ND
PW
RG
NDIRF
R02
4IR
FR
024
Q1
Q1
SS
GG
DD
2.4K 2.4KR32 R32
5%5%1/4W 1/4W
1N4003 1N4003
CR1 CR1
J2:B
J2:B
CO
NN
M 2
PIN
200
CO
NN
M 2
PIN
200
22
75K 75KR5 R5
AT
300
HZ
.A
T 3
00 H
Z.
+12
V_P
+12
V_P
TR
IAN
GLE
WA
VE
TR
IAN
GLE
WA
VE
0 T
O 4
096m
v0
TO
409
6mv
CMPSH-3TR CMPSH-3TR
CR2 CR2
33 11
(3=
+12
V_P
, 12=
-12V
_P)
(3=
+12
V_P
, 12=
-12V
_P)
U2:
BU
2:B
LM29
01LM
2901
1166 77
1.50
K1.
50K
R16
R16
PW
RG
ND
PW
RG
ND
R8
R8
1.82
K1.
82K
**
C26 C26
(3=
+12
V_P
, 12=
-12V
_P)
(3=
+12
V_P
, 12=
-12V
_P)
U2:
AU
2:A
LM29
01LM
2901
2244 55
10.0
K10
.0K
R9
R9
**
C23 C23
**
C25 C25
C16 C16
.1uF .1uF
+4.
096
VD
C+
4.09
6 V
DC
0 T
O +
4.09
6 V
DC
D
AC
-D0
TO
+4.
096
VD
C
DA
C-D
PW
RG
ND
PW
RG
ND
PW
RG
ND
PW
RG
ND
1.00
K1.
00K
R42
R42
J1:A
AJ1
:AA
12B
12B
PW
RG
ND
PW
RG
ND
J1:F
J1:F
6A6A
BB AA
8877
6655
DD
5566
7788
CCCC
2233
DD
1144 44
33
C
ON
FID
EN
TIA
L A
ND
C
ON
FID
EN
TIA
L A
ND
PR
OP
RIE
TA
RY
INF
OR
MA
TIO
NP
RO
PR
IET
AR
Y IN
FO
RM
AT
ION
BB
22
PR
OC
ES
S:
PR
OC
ES
S:
PR
OD
UC
T L
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BiPAP Vision Service Manual
B-27
1045049
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B.7 Power Supply
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