asr-3000 service manual

ASR-3000 X-RAY MAMMOGRAPHY SERVICE MANUAL Total 28 Pages

Contents

Safety information 1.Overview------------------------------------------------------------ ------------------------3 2.Electrical-------------------------------------------------------------------------------------3 3. Mechanical----------------------------------------------------------------------------------3 4. Safety Warnings and Cautions-----------------------------------------------------------3 5.Radiation and Magnetically Intensity Warnings----------------------------------------4 6.Other Warnings -----------------------------------------------------------------------------4 7. Moving and Using Equipment Warnings-----------------------------------------------5 8. Cleaning Cautions--------------------------------------------------------------------------5 9. Radiation Safety----------------------------------------------------------------------------5 10. Safety Symbols---------------------------------------------------------------------------5

Chapter1:

Theory and Structure of the System 1.1 General -------------------------------------------------------------------------------------8 1.2 ASR-3000X-Ray Mammography System basic structure---------------------------8

1.2.1 ASR-3000 X-Ray Mammography System basic Constitute -------------------8 1.2.2 Major Shelf ---------------------------------------------------------------------------8 1.2.3 Console -------------------------------------------------------------------------------8

1.3.Working System Principle -----------------------------------------------------------------9 1.4 The control theory of the system graph---------------------------------------------------9

Chapter 2:

Maintenance Schedules 2.1 In-Service Observation----------------------------------------------------------------10 2.2 Preventive Maintenance Schedules and Checklists--------------------------------10 2.3 System Component Preventive Maintenance---------------------------------------12 2.4 Major Shelf Preventive Maintenance------------------------------------------------12

Chapter 3:

Diagnostics and Troubleshooting 3.1 The Troubleshooting graph ------------------------------------------------------------13 3.2 Troubleshooting and Diagnostics------------------------------------------------------14 3.3 Sample s-----------------------------------------------------------------------------------15

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Chapter 4:

Service Tools 1. Common Service Tools -------------------------------------------------------------------17

Appendix I:

The module functions and system structure 1. ASR-3000 mammography structure and composition---------------------------18 2. Functions of each module------------------------------------------------------------18 3. Signal information flow and parameters of each module------------------------19 3.1 Control console display panel-----------------------------------------------------19 3.2 Machine head display panel-------------------------------------------------------20 3.3 Power supply control board-------------------------------------------------------21 3.4 Anode driver board-----------------------------------------------------------------22 3.5 Control box intermediate board---------------------------------------------------22 3.6 Control box lower board-----------------------------------------------------------23 3.7 High-voltage driver board---------------------------------------------------------24 3.8 Main unit CPU board--------------------------------------------------------------25 3.9 Main unit output power supply test parameter---------------------------------26

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Safety information Personnel operating and maintaining the equipment should receive system technical training and be thoroughly familiar with all aspects of its operation and maintenance. To ensure their safety, all users should read this chapter carefully before using the system. Inaddition, to promote safety awareness, Service Engineers should periodically review the basic precautions outlined in this chapter.

1Overview Do not remove the covers of the exposure equipment. Do not defeat or bypass built-in equipment safety features. Do not attempt to repair the equipment if it fails. Immediately call a person

qualified and authorized to repair the equipment.

Do not attempt to move equipment, connect or disconnect any communication cables.

Observe all warnings, cautions, stated or implied, instructions, in the procedures.

Keep all safety labels on the equipment permanently.

2Electrical Only a qualified/trained Service Engineer or electrician can replace electrical

components.

3Mechanical Keep fingers, hands, and tools away from moving parts. Unless specifically instructed, do not operate the equipment with covers or

panels removed.

Route cables properly to eliminate tripping hazards.

4Safety Warnings and Cautions The sale and use of the equipment has been approved by the government

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Only qualified personnel may operate the system equipment. Operation of the equipment by persons who have not been trained or who are unfamiliar

with the systems functions and controls may cause serious injury to the

patient, serious injury to the operator, or damage to the equipment.

The system includes no user serviceable parts. For service assistance, contact Company.

5Radiation and Magnetic field Warnings and Cautions The system produces ionizing radiation. Operators observe all state and local

requirements and regulations.

6Other Warnings and Cautions The ASR-3000 Console component of the system may not be located in high

humidity environment.

The system and associated cables must not be operated in the presence of moisture.

To avoid excessive product leakage currents and to maintain product compliance to medical protective earth and grounding requirements, the

systems power cord must be connected directly to a hardwired ac mains

receptacle.

Ensure that earth grounding connections between the components and the building are maintained at all times. The components include Stand; X-ray

Generator; and Console.

The Console cabinet includes a dedicated, bolted, protective ground connection to the buildings electrical system. Do not remove the grounding

connection for any reason. If it becomes damaged, contact a qualified

Service Engineer.

The UPS must be replaced by an authorized company representative . The UPS contains lead and poses a hazard to the environment and human health

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if not disposed of properly.

The ASR-3000 system is not suitable for operation in the presence of corrosive gaes.

7Warnings Moving and Using Equipment Use at least two qualified people when moving equipment in order to

prevent injury or strain.

The equipment is fragile and must be handled with care.

8Cautions Cleaning Do not spray cleaning solution directly onto the equipment. Instead, moisten

a cloth with the solution and wipe the equipment.

Do not immerse the equipment, including any components or accessories, in liquid.

Do not autoclave the equipment, including any components or accessories.

9Radiation Safety Exposure to ionizing radiation such as X-rays can be hazardous. Some effects of X-radiation are cumulative. Everyone associated with X-ray work must be familiar with the recommendations of the Center for Devices and Radiological Health , the National Institute for Standards and Technology, the National Council on Radiation Protection, and the International Committee on Radiation Protection. Do not attempt to operate X-ray systems for the health, it's hazardous to health. the walls and windows of the radiologist's workstation in most X-ray facilities must be specially disposed to protect against ionizing radiation, thick lead setting inner walls is widely used to separate from ionizing radiation Use the proper dose of X-ray for the patient to result in acceptable images

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10Safety Symbols The following safety-related symbols are found on the equipment. To avoid injury, learn to recognize them.

Radiation

Power Off (used with the Console UPS)

Power On (used with the Console UPS)

Explosive Gas (flammable)

AttentionRead the accompanying CAUTION or WARNING

Non- Anesthetic Proof

Universal Interface Connection Identifiers

Sound

Earphones

Protective Earth Ground

Hazardous Voltage

Power On Indicator

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On Line Indicator (used with X-ray Generator switch at Console)

Off Line Indicator (used with X-ray Generator switch at Console)

Prep/Exposure Switch

X-ray Exposure Switch

Do Not Immerse In Liquid

This product contains no field-serviceable parts.

Special Cleaning Instructions

Lifting Warning

Danger-Pinch Point

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Chapter 1

Theory and Structure of the System

1.1 General ASR-3000 X-Ray mammography system is that the X-ray tube generates

X-ray by heating filament and inputting a high voltage, and then Radiography. To avoid the hazard of X-ray radiation and high voltage, ensure that line disconnect switches are opened before repairing the equipment .if must repair in the activated current, ensure to follow the safety prescribes of the correlative manuals.

1.2 The Structure of ASR-3000 X-RAY Mammography System

1.2.1ASR-3000 X-RAY Mammography System general components Wall Stand

Console

It's a high-frequency(40KHZ) tiny focus molybdenum target eddy-anticathode special X-Ray Mammography under the control of the computer

1.2.2 Main Frame contains

X-RAY tube

Rotation anode

X-Ray generator

Control system

Radiography easel

Mammography oppression

Filter and cassette

1.2.3 Console contains

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Console panels

Switching power

1.3 Theory of the System

The working principle of the ASR-3000 X-Ray mammography is that the X-ray tube generates X-ray by heating filament and inputting a high voltage, and then Radiography.

1.4 The control theory of the system graph

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Chapter 2:

Maintenance Schedules Take the proper preventative maintenance to ensure the system in the best working state and to reduce the expenses and time of maintenance by all means. The information of preventative maintenance is provided in this chapter. Service procedures must be performed by trained personnel only . Preventive Maintenance Schedules and Checklists Preventive maintenance procedures for the System components

2.1 In-Service Observation All provided products and associated components are designed for replacement or service in a hospital environment.

. Observe the operation of the locking mechanisms as the Wall Stand is

prepared for use. If the mechanism fails to release, the unit should immediately be removed from service and the failure repaired.

The Wall Stand and all accessories should be inspected for worn, loose, bent,

or broken parts.

2.2 Preventive Maintenance Schedules and Checklists

In accordance with using , please Preventive Maintenance

It includes SemiAnnual Preventative Maintenance/ Annual Preventive Maintenance Record the correlative results of maintenance in the following table:

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Preventive Maintenance Checklist

User Name Linkman Telephone

Equipment name Inspection parts state

X-Ray generator

tube

X-Ray

collimator equipment Up/down system

Radiography easel filtercassette

writhe function

Up/down function

The Wall Stand

Transmission parts

Circuit board Console

display of panel

Sensor Position sensor

The whole

performance

applying state of the

performance

Service Engineersign Hospital Superinrtendentsign

Inspection Date:

2.3 System Component Preventive Maintenance

For preventive maintenance for the Wall Stand, refer to the topic Wall Stand Preventive Maintenance.

For preventive maintenance for the X-ray tube, refer to the manufacturers

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service manual. For preventive maintenance for the Console, refer to the manufacturers

service manual.

2.4 Wall Stand Preventive Maintenance Ensure that the table is completely disconnected and that the emergency

switches have been activated, before starting any cleaning operations. Ensure that no liquid gets into the unit. Do not use water. Water can

short-circuit the electrical installation and cause corrosion to mechanical parts.

Do not use acid or abrasive products. Use a wax appropriate for the surface. When disinfecting the examination room, ensure the unit is covered with

plastic sheets. When using disinfectants, carefully follow the instructions for disinfecting

under explosion hazard conditions.

Chapter 3:

Diagnostics and Troubleshooting

This chapter describes the diagnostic and troubleshooting procedures for the

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ASR-3000 System.

This chapter provides: General information on error logs Recommendations for responding to error messages Troubleshooting guidelines Troubleshooting sample

3.1 The Troubleshooting graph

3.2 Troubleshooting and Diagnostics

No.

Failure Phenomenon

Causes Solutions

1

Power Supply Indicator does

a. No power in the extern power mains. b. Power switch is not turned on.

a. Check external power mains.b. Turn on the power supply.

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not light up after power on.

c. Check if the power cable is damaged.

2 ALARM a. Computer error. b. Ground wire is not well

connected.

a. Turn on the machine again after power off.

b. Check the ground.

3 After press the hand-switch, Ready LED does not light up.

a. The interval between the previous exposure and the next one is less than 30 seconds.

b. Rotating anode working circuit error. Anode cannot rotate or start up.

c. Filament heating circuit error.

a. Wait 30 seconds, then press the hand switch.

b. Check the rotating anode circuit board and replace the board if necessary.

c. Check the filament circuit.

4 The displayed

breast thickness value is not consistent with the actuality.

a. Computer error. b. Component error. c. The steel wire in the main unit

arm becomes loose.

a. Turn off the machine and turn it on again.

b. Check CPU board, control power supply board, replace boards if necessary.

c. Adjust the steel wire in the main unit arm.

d. Adjust the weight under the cassette of the machine head.

5 No X-ray output no exposure, no mA reading, film cannot be exposed

a. Computer error. b. High voltage circuit error.

a. Turn off and restart the exposure system.

b. Check high-voltage circuit.

c. Check high-voltage driver board, replace circuit board.

6 No exposure under

Auto mode . Computer error. . -ray sensor on the X-ray

detection board error.

.Turn off the machine and restart the exposure system.

b. Check X-ray detection board, measure thevoltages of Pin 1 and Pin 4 under thecondition there is no light illumination. The value should be 40. Under sunlight or under the illumination of 60W light bulb to

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illuminate the X-ray tester , the signal output voltage should be 0-7. If no change, then the X-ray detector has problems. Please replace the PCB.

3.3 Examples

A hospital has a set of ASR-3000 installed. During their operation,

when press the auto exposure, the machine will not perform auto

exposure and alarm occurs. We guess when X-ray is radiated to the X-ray

dose detection board, no feedback signal is transmitted to the control

exposure console. Then, X-ray dose detection board may have problems.

Remove the X-ray dose detection board, power it on. Under the condition

that there is no illumination, test J1 voltage, P2 is +12V, P2 is 12V.

These are normal. While when signal output P1 and P4 voltages are

measured, the value should be 0V. Use sunlight or 60W light bulb to

illuminate the X-ray dose detector, the signal output voltage is also 0V.

After 10 minutes, the signal output voltage is also 0V. But when light

bulb is used to illuminate the X-ray detector, under normal conditions,

X-ray dose detection board J1s P2 and P3 voltages are respectively +12V

and 12V. While signal output P1 and P4 voltages should be 0-7V. With

the change in the illuminating time, P1 and P4 voltages also change.

Therefore, based on the above test results, we determine the X-ray

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detector has problems. We replace the X-ray detector chips, power it up,

check the detector following the previous steps. All the test data are

normal. Then secure the X-ray dose detection board, perform auto

exposure test, press exposure button, if the auto exposure is normal, then

the problem is resolved.

Chapter 4 :

Service Tools

The following tools and instruments are necessary in the system

maintenance.

Description QTY

Insulation silicon rubber resin 1pcs

Rubber hammer 1pcs

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Hot air blower 1pcs

Level 15in 1pcs

L Wrench (set) 1pcs

Pincers 1pcs

Cross screw driver 1pcs

Shape Screwdriver 1pcs

Electrostatic wrist 1pcs

Torch 1pcs

Hex Key set, metric 1pcs

Roll scale 3m 1pcs

Aperture wrench(set) 1pcs

Cable binder 10pcs

Cable clip 1pcs

Multi-meter(FLUKE 7X) 1pcs

Electric iron25with soldering tin 1pcs

Appendix 1 Function Modules and Configuration 1 ASR-3000 system configuration

ASR-3000 mamography consists of: control console display board, machine head display (left, right) board, HV driver board, anode startup board, main unit CPU board, pre-positioned power supply board, output high voltage feedback board. See figure below.

Electric adjustment

Output HV

t Boa

rd o

f mac

hine

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Anode startup

Console display Pre-PS Control Bd.Pre-PS Bd.

Tube

CPU board Le

ft B

d of

mac

hine

H.V driver

24 12 12 5

switch PS

2Functions Console display Mainly includes illuminating diode, alphanumeric tube, function keys and buzzer.

Machine head display (left, right) Through connecting to CPU board, control the motion of the machine head and display some working modes.

X-ray dose detection board When auto exposure is used, automatically detect the dose of the exposure.

High-voltage driver board Supply high-voltage power for X-ray to generate X-ray.

Anode startup board Supply startup power for the tube to rotate the anode.

Main unit CPU board It is also named computer main board and mother board. It completes the data processing and flow control of the complete system and also is the core of the system.

Pre-positioned power supply control board Supply power to the control operation system.

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3. The connectors, data flow direction and related test data

3.1 Control console display board

7-S07746

7-S07747

7-S07757

7-S06911

JP1

P1P2

J2

J8J7

J6J5J4

3.2 Machine head display board (left and right)

To CPU Bd.

J6

To CPU Bd.

J5 JP6

Control signal

J1

PS

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Machine head display left and right board 5 and 6 are connected to JP3

on the CPU board, JP6 is connected to JP5 on CPU board.

3.3 Power Supply Control Board (vertical)

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D7R D6C7ba

YJ1-1(A:7-S07684)

D6-W

JP1 JP2

D7-

b

aba

ba

ba

ba

D2D1

T2

C1-L

R36

+ AC

T2i2

B T2i1

R35C1+

R33

JP3

R34

JP0-10(7-S07685)

C2

C1

FFi1 Fi2

Fo1C2-

Fo2

Li1 Li2 C8C6D5

Wa

176

C2+ 45

102 3

Wb11

Q1D5+

98

D8+ C8- C8+D9K D8 C30

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12

21 3

IN(

:7-S07684)

YJ1-2(A:7-S07684)IN(

:7-S07684)

JP1-5(B

JP0-11(7-S07685

JP0-12(7-S07685

YJ2-6(A:7-S07695)

YJ2-5(A:7-S07696)

DL-3(D:7-S07741DL-4(D:7-S07741

JP0-9(7-S07685)

IN(

:7-S07684)

OUT1(

:7-S07756)

OUT2(

:7-S07756)

Related test data When 220AV is input, check fuse , test diode B signal, measuring electrolytic capacitor C1 voltage to be 320V, electrolytic capacitor C8 voltage to be 110-145V (voltage value is different when different scale is selected). If abnormal phenomenon occurs, K or Q1 may fail and should be replaced.

3.4 Anode Driver Board

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7-S07744

7-S07747 7-S07746

7-S07754

7-S07755

7-S07755

7-S07755

JP1-3(B:7-S07741)

K18K10 K15

JP2

K6K2J1

K4K9

R1

K14

K16D3

JP1

K19

JP4

K8 K1

K13

K7K3

J2

D1

K17K20K5 K12

K11

JP1-4(B:7-S07741)

PS2-N(D:7-S07745)

JP3T1 F1

PS2-L(D:7-S07745)

DL-2D1 250V/.2A

50/60Hz

D2

KT1

KJ1R1

C1C2

C4

R3

KJ2

C3

3.5 Control Box PCB (Middle)

JP4-6(D:7-S07755)

aa1a2

1 a

JP0-27-S07732

b3JP2-15(D7-S07755)

JP2-11(D7-S07755)

JP2-19(D7-S07755)

R12

JP4-5(D:7-S07755)JP1-3(D:7-S07755)

11

a1

JP1-

3D

7-S0

7755

JP4-3(

D7-S0

7755

JP4-

1D

7-S0

7755

JP2-

12D

7-S077

55

JP4-2(D7-S07755)

R323

JP0-37-S07735

JP4-4(D:7-S07755)

R2 R4 R5

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3.6 Control Box PBC (Lower)

JP1-4(B)

JP3-5(D)JP2-7(B)

JP3-4(D)

JP1-3(B)

JP2-6(B)

JP1-2(B)

JP1-5(B)JP1-6(B)SW-4 SW-c

220/150

R2/1.5K

Out InTo4 1

3

1

2YJ1

2

5 4

1

2

3

2 1

JP2-8(

B)1 R1/30

JP2-3(

B)JP2-6(

B)

JP2-5(

B)

2T1

KT4

T2 3

21 3 4

R3/300

58 7 6 b

YJ2

21 3 4 a

JP2-8(

B)JP2-4(

B)

JP2-12

(B)

JP2-9(

B)

6 5L1 2

1JP2-10(B)

JP1-6(B)

JP2-11(B)

Related data of Control Console: DC power supply, 2GZM-60s12 voltage 1211GZM-

40512to be 5, 121GZM-10s12 to be 121. If the test results are not the same with the above reference data, PCB may fail and should be replaced.

3.7 High Voltage Driver Board

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E1

J301J30210-S00003

E1C2

C1

J401

J402J403 GN2VC2

JP2

P

VC3GN3

E2

JP3

C2E1 E2

J20210-S00005

VC3GN3

GN2VC2

C1 G1

V+J10 J11

E1G1

K103

K102

V-

J22E2G2

CU104

Vout

1

CM

Vout2

G2E2

V1+

V1-

T124V 24V

18V 18V

220V 220V

J401 J404

J402 J403

K1032602mm

2002mm

2002mm

JP0-9 JP0-10

Related test data:

Connect to power mains and turn on 220VAC switch, J2-1.2.3.4Ground and SG3525s Pin 15 is 15V0.5V, SG3525s pin 16 is 5.1V0.5V. On OFGB board, adjust 310, LM324s pin 6 to 4047815pin 2 voltage to be 6.00, adjust 314, 324s 10 to 4047815pin 2 voltage to be 1.00.

If the test results are not the same with the above reference data, then, the PCB fails and should be replaced.

3.8 Main Unit CPU Board

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Related test data

JP7

JP4

PS

JP10

sensorJP11

To HV J103

JP1

Sync signal

P2

To high volt J400

JP5

JP8 JP3 J3 JP9

5V Limits and motor driver

Display and key

Sensors connector JP6

When powered up at 220VAC, the main unit CPU board C18, C15, C7, C4 voltage at the two terminals are respectively -12V, 24V, 12V, and 5VC44 is 3.65VU17pin12 is 1.96Vwhile U17s pin 13 and pin 15 voltage is lower than 5V. If there is any discrepancy between the test results and the above reference data, the board may fail and should be replaced.

3.9. Main unit output power supply test data:

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100V 220V F Ground

F large focus

Y R

12 11 10 9 8 7 6 5 4 3 2 1

100V Earth Ia F small focus

G 220V

Remarks a.100V-100V are to supply power to the tube and high-voltage startup board. When starting the exposure signal, the voltages of P1 and P2 are respectively 100V-100V. b. p3, p4 pins are power supply for AC 220 c. p6, p8, p9 are power supply for tube large and small focus d. p7 Ia is tube currrent e. p10, p11, p12 pins are power supply for tube anode and motor driver.

Caution: Refer ASR-3000 Operators Manual and Technical Manual when servicing and testing PCBs and pay

attention to the capacitor discharge process to prevent electric

shock.

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ContentsSafety information

asr-3000 service manual

Documents

system structure

mammography structure

system graph

system principle

safety warnings

radiation safety

pages chapter

control theory