colour television chassis l01 - turuta ac_.pdf · 2018. 3. 20. · technical specifications,...
TRANSCRIPT
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Colour Television Chassis
Published by RB 0364 Service PaCE
©Copyright 2003 Philips Consumer EAll rights reserved. No part of this puretrieval system or transmitted, in anymechanical, photocopying, or otherw
L01.1AAC
Contents Page Contents Page1. Technical Specifications, Connections, and
Chassis Overview 22. Safety and Maintenance Instructions, Warnings,
and Notes 43. Directions for Use 64. Mechanical Instructions 165. Service Modes, Error Codes, and Faultfinding 186. Block Diagram, I2C, Supply Voltage, and
Testpoint OverviewsBlock Diagram 23I2C and Supply Voltage Diagram 24Testpoint Overview Mono Carrier & CRT Panel 25
7. Electrical Diagrams and PWB’s Diagram PWBPower Supply (Diagram A1) 26 41-46Line Deflection (Diagram A2) 27 41-46Frame Deflection (Diagram A3) 28 41-46Tuner IF (Diagram A4) 29 41-46Video IF + Sound IF (Diagram A5) 30 41-46Synchronisation (Diagram A6) 31 41-46Control (Diagram A7) 32 41-46Audio Amplifier (Diagram A8) 33 41-46NICAM, 2CS, BTSC Stereo Dec. (Diagram A9) 34 41-46Audio/Video Source Switching (Diagram A10) 35 41-46BTSC-NDBX Stereo Decoder (Diagram A11) 36 41-46Front IO, Front Control and HP (Diagram A12) 37 41-46Rear IO Cinch (Diagram A13) 38 41-46Diversity Tables 39PIP + Tilt Interface (Diagram A16) 40 41-46CRT Panel: ECO Scavem (Diagram B1) 47 49-50CRT Panel: ECO Scavem (Diagram B2) 48 49-50Side AV Panel + Headphone (Diagram C) 51 51Top Control Panel (Diagram E) 52 52Degaussing + DAF Panel (Diagram G) 53 53Front Interface Panel (Diagram Q1) 54 54
8. Alignments 559. Circuit Description 61
Abbreviation List 70IC Data Sheets 71
10 Spare Parts List 7211 Revision List 76
Printed in the Netherlands Subject to modification EN 3122 785 13210
lectronics B.V. Eindhoven, The Netherlands.blication may be reproduced, stored in a form or by any means, electronic,
ise without the prior permission of Philips.
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Technical Specifications, Connections, and Chassis OverviewEN 2 L01.1A AC1.
1. Technical Specifications, Connections, and Chassis Overview
Index:1. Technical Specification2. Connections3. Chassis Overview Note:• Described specifications are valid for the whole product
range (see Product Survey for specific models).• Figures can deviate slightly from the actual situation, due
to different set executions.
1.1 Technical Specifications
1.1.1 Reception
Tuning system : PLLColour systems : NTSC 3.58, 4.43
: PAL B/G, B/H, D/K, I: SECAM B/G, D/K, K1
Sound systems : FM-Stereo: 2CS (B/G, China,
Korea): 2CS B/G, DK: BTSC DBX: NICAM B/G, D, D/K, I
: BI-NICAM B/G, D, D/K, I
A/V connections : NTSC 3.58, 4.43Channel selections : 100 or 125 channels
: UVSH or full cableAerial input : 75 Ohm
: IEC- or F-type
1.1.2 Miscellaneous
Audio output : Stereo: 2 x 1 W or 2 x 3W or 2 x 5W or 2 x 10W
: Mono: 1 x 1W or 1 x 3W or 1 x 4W or 2 x 2W
Mains voltage : 90 - 276 V or 150-276V
Mains frequency : 50 / 60 HzAmbient temperature : + 5 to + 45 deg. CMaximum humidity : 90 %Power consumption : 52 W (20") to
: 120 W (36")Standby Power consumption : < 3 W
1.2 Connections
1.2.1 Front/Side Connections and Front/Top Control
Figure 1-1 Front/Side connections and Front/Top control
Audio / Video In1 - Video CVBS 1 Vpp/75 Ohm 2 - Audio L 0.2 Vrms/10 kOhm 3 - Audio R 0.2 Vrms/10 kOhm 4 - Headphone 8 - 600 Ohm, 4 mW
1.2.2 Rear Connections
Figure 1-2 Rear connections
Monitor Out1 - Video CVBS 1 Vpp/75 Ohm 2 - Audio L 0.5 Vrms/1 kOhm
3 - Audio R 0.5 Vrms/1 kOhm
AV1 YUV In(if present)1 - Y 0.7 Vpp/75 Ohm 2 - U 0.7 Vpp/75 Ohm 3 - V 0.7 Vpp/75 Ohm
AV1 In1 - Video CVBS 1 Vpp/75 Ohm 2 - Audio L 0.5 Vrms/10 kOhm 3 - Audio R 0.5 Vrms/10 kOhm
AV2 In1 - Video CVBS 1 Vpp/75 Ohm 2 - Audio L 0.5 Vrms/10 kOhm 3 - Audio R 0.5 Vrms/10 kOhm
AV2 In (SVHS)1 - gnd 2 - gnd 3 - Y 1 Vpp/75 Ohm 4 - C 0.3 Vpp/75 Ohm
REDLED
V+V-
P-
P+
R AUDIO L
R AUDIO L
INSTALL/MENU
+ VOLUME -
CHANNEL
VIDEO CL 36532039_007.eps240403
IR
TOP CONTROL SIDE I/OFRONT CONTROL + FRONT I/O
V
L
R
Y
U
V
V
L
R
V
L
R SVHS
MONITOROUT
75 Ohm
FM
AV1IN
AV2IN
CL 16532008_005.eps120601
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Technical Specifications, Connections, and Chassis Overview EN 3L01.1A AC 1.
1.3 Chassis Overview
Figure 1-3 PWB Location
SIDE AV PANEL + HEADPHONE
B2
B1
C
MAINCHASSIS
PANEL
A1
E
A2
A3
A4
A5
A12
A9
A10
A11
A8
A13
POWER SUPPLY
Q1FRONT INTERFACE PANEL
LINE DEFLECTION
FRAME DEFLECTION
A6SYNCHRONISATION
TUNER IF
VIDEO + SOUND IF
FRONT I/O + FRONT CONTROL+ HEADPHONE
BTSC - NDBX DECODER
A7CONTROL (µC)
NICAM + 2CS +BTSC DECODER
A/V SOURCE SWITCHING
AUDIO AMPLIFIER
REAR I/O CINCH
CL 36532039_008.eps010503
A16TILT INTERFACE
TOP CONTROL PANELCRT PANEL
GDEGAUSSING & DAF PANEL(34" only)
CRT
SCAVEM
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Direction for U
seE
N 8
L01.1A
AC
3.
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Direction for U
seE
N 9
L01.1A
AC
3.
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Direction for U
seE
N 10
L01.1A
AC
3.
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Direction for U
seE
N 11
L01.1A
AC
3.
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Direction for U
seE
N 12
L01.1A
AC
3.
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Direction for U
seE
N 13
L01.1A
AC
3.
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Direction for U
seE
N 14
L01.1A
AC
3.
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Direction for U
seE
N 15
L01.1A
AC
3.
Personal Notes:
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Mechanical InstructionsEN 16 L01.1A AC4.
4. Mechanical Instructions
Index of this chapter:1. Set Disassembly2. Service Positions3. Assy/Board Removal4. Set Re-assembly Note: Figures below can deviate slightly from the actual situation, due to different set executions.
4.1 Set Disassembly
1. Remove all fixation screws of the rear cover (do not forget the screws that hold the rear connection panel).
2. Now pull the rear cover backwards to remove it.
4.2 Service Positions
There are 2 configurations possible. With and without panel bracket. Both have a different service position: Main panel without bracket (with integrated 'control' part).1. Disconnect the strain relief of the AC power cord.2. Remove the main panel, by pushing the two center clips
outwards [1]. At the same time pull the panel away from the CRT [2].
3. Disconnect the degaussing coil by removing the cable from (red) connector 0212.
4. Turn the panel 90 degrees counter clockwise [3].5. Flip the panel 90 degrees [4], with the components towards
the CRT.6. Turn the panel with its rear connections towards the CRT
[5].7. Slide the metal heatsink (near the mains transformer 5520)
underneath the right chassis bracket. This secures the panel [6].
Figure 4-1 Service position (1)
Main panel with bracket (with separate 'control' part).1. Disconnect the strain relief of the AC power cord.2. Disconnect the degaussing coil by removing the cable from
(red) connector 0212 [1].3. Remove the panel bracket from the bottom tray, by pulling
it backward [2].4. Turn the chassis tray 90 degrees counter clockwise [2].5. Move the panel somewhat to the left and flip it 90 degrees
[3], with the components towards the CRT.6. Turn the panel with the rear I/O towards the CRT.7. Place the hook of the tray in the fixation hole of the cabinet
bottom [4] and secure it.
Figure 4-2 Service position (2)
4.3 Assy/Board Removal
4.3.1 Comb Filter Assy/ Board (if present)
You can remove the Comb Filter panel from the Main Carrier board, by disconnecting it from connector 1810 (located nearby the mains transformer 5520).
B
1
A
CL 16532016_007.ai040401
3
6
45
1
1
2
A
CL 16532016_009.eps220501B
4
3
2
1
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Mechanical Instructions EN 17L01.1A AC 4.
4.3.2 Top Control Assy/Board (if present)
Figure 4-3 Top control removal
1. Remove the two fixation screws (if present).2. Pull the module down and backwards (w.o.w. release it
from the front hinge [M]). You must use some force.3. Lift the board from its bracket while releasing the two
fixation clamps. The board hinges on the other side.
4.3.3 Front Interface Assy/ Board (if present)
Figure 4-4 Front interface removal
1. You can remove the complete module from the bottom plate, by pulling the two fixation clamps upwards [1] while sliding the module away from the CRT [2].
2. Release the 2 fixation clamps [3] at the side of the bracket, and lift the board out of the bracket (it hinges at one side).
4.3.4 DAF Assy/ Board (if present)
Figure 4-5 DAF panel removal
1. You can remove the complete module from the Main Carrier bracket, by pressing its fixation clamp downwards [1] while sliding the module in the direction of the CRT [2].
2. Release the 2 fixation clamps [3] to lift the board out of the bracket [4].
4.3.5 Side I/O Assy/ Board (if present)
Figure 4-6 Side jack panel removal
1. You can remove the complete Side I/O assembly after removing the 2 fixation screws.
2. Release the 2 fixation clamps to lift the board out of the bracket.
4.4 Set Re-assembly
Before you mount the rear cover, perform the following checks:1. Check whether the AC power cord is mounted correctly in
its guiding brackets.2. Re-place the strain relief of the AC power cord into the
cabinet.3. Check whether all cables are replaced in their original
position.
CL 06532012_003.eps030200
MTop control board
2
3
1
1
3
CL 06532130_018.eps021000
CL 26532119_060.eps181202
3
2
3
41
CL 06532012_004.eps030200
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Service Modes, Error Codes and Fault FindingEN 18 L01.1A AC5.
5. Service Modes, Error Codes and Fault Finding
Index:1. Test points.2. Service Modes.3. Problems and Solving Tips (related to CSM).4. Compair5. Error Codes.6. The Blinking LED Procedure.7. Protections.8. Repair Tips.
5.1 Test Points
The chassis is equipped with test points printed on the circuit board assemblies. These test points refer to the functional blocks:
Table 5-1 Test Point Overview
The numbering is in a logical sequence for diagnostics. Always start diagnosing within a functional block in the sequence of the relevant test points for that block. Perform measurements under the following conditions:• Service Default Alignment Mode.• Video: colour bar signal.• Audio: 3 kHz left, 1 kHz right.
5.2 Service Modes
Service Default Alignment Mode (SDAM) offers several features for the service technician, while the Customer Service Mode (CSM) is used for communication between dealer and customer.There is also the option of using ComPair, a hardware interface between a computer (see requirements) and the TV chassis. It offers the ability of structured trouble shooting, error code reading and software version readout for all chassis. Requirements: To run ComPair on a computer (laptop or desktop) requires, as a minimum, a 486 processor, Windows 3.1 and a CD-ROM drive. A Pentium Processor and Windows 95/98 are also acceptable (see also paragraph 5.4).
Table 5-2 SW Cluster
5.2.1 Service Default Alignment Mode (SDAM)
Purpose• To change option settings.• To create a predefined setting to get the same
measurement results as given in this manual.• To display / clear the error code buffer. • To override SW protections.• To perform alignments.• To start the blinking LED procedure.
Specifications• Tuning frequency:
– 475.25 MHz for PAL/SECAM (AP-PAL).– 61.25 MHz (channel 3) for NTSC-sets (AP-NTSC).
• Colour system:– PAL-BG for AP-PAL.– NTSC for AP-NTSC.
• All picture settings at 50 % (brightness, colour contrast, hue).
• Bass, treble and balance at 50 %; volume at 25 %. • All service-unfriendly modes (if present) are disabled, like:
– (sleep) timer, – child/parental lock, – blue mute, – hotel/hospitality mode– auto switch-off (when no “IDENT” video signal is
received for 15 minutes),– skip / blank of non-favorite presets / channels,– auto store of personal presets,– auto user menu time-out.
• Operation hours counter.• Software version.• Option settings.• Error buffer reading and erasing.• Software alignments.
How to enter SDAMUse one of the following methods:• Use a standard customer RC-transmitter and key in the
code 062596 directly followed by the “M” (menu) button or• Short jumper wires 9631 and 9641 on the mono carrier
(see Fig. 8-1) and apply AC power. Then press the power button (remove the short after start-up).
• Caution: Entering SDAM by shorten wires 9631 and 9641 will override the +8V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could lead to damaging the set.
• Or via ComPair.
TEST POINT CIRCUIT DIAGRAM
A1-A2-A3-.. AUDIO PROCESSING A8, A9
C1-C2-C3-.. CONTROL A7
F1-F2-F3-.. FRAME DRIVE & OUTPUT A3
I1-I2-I3-.. TUNER & IF A4
L1-L2-L3-.. LINE DRIVE & OUTPUT A2
P1-P2-P3-.. POWER SUPPLY A1
S1-S2-S3-.. SYNCHRONISATION A6
V1-V2-V3-.. VIDEO PROCESSING A5, B1
SWCluster
Softwaremane
UOC type UOCDiversity
SpecialFeatures
L3LAN1 L01AN4x.y TDA9582(LS)
64K ROMSize
China
L3LAN2 L01AN5x.y TDA9582(LS)
64K ROMSize
India, M.E.
L3LAN3 L01AN7x.y TDA9570(LS)
55K ROMSize
China, AV stereo
L3LAT1 L01AT5x.y TDA9552(LS)
64K ROMSize
1pg TXT, AV stereo
L3LAC1 L01AC2x.y TDA9580(LS)
64K ROMSize
NTSC, Tai Wan, Korean
Abbreviations in Software name: A = AP, T = TXT, N = NON TXT, C = NTSC, M = MONO, D = DVD
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Service Modes, Error Codes and Fault Finding EN 19L01.1A AC 5.
After entering SDAM, the following screen is visible, with S at the upper right side for recognition.
Figure 5-1 SDAM menu
LLLLThis is the operation hours counter. It counts the normal operation hours, not the standby hours.AAABCD-X.YThis is the software identification of the main micro controller: A = the project name (L01).B = the region: E= Europe, A= Asia Pacific, U= NAFTA, L= LATAM.C = the feature of software diversity: C = NTSC, D = DVD, N = no TXT, T = TXT. D = the language cluster number:X = the main software version number.Y = the sub software version number.SIndication of the actual mode. S= SDAM= Service Default Alignment mode.Error buffersFive errors possible.Option bytesSeven codes possible.ClearErase the contents of the error buffer. Select the CLEAR menu item and press the CURSOR RIGHT key. The content of the error buffer is cleared.OptionsTo set the Option Bytes. See chapter 8.3.1 for a detailed description.AKBDisable (0) or enable (1) the “black current loop” (AKB = Auto Kine Bias).TunerTo align the Tuner. See chapter 8.3.2 for a detailed description.White ToneTo align the White Tone. See chapter 8.3.3 for a detailed description.GeometryTo align the set geometry. See chapter 8.3.4 for a detailed description.AudioTo align the Audio. See chapter 8.3.5 for a detailed description.
How to navigate• In SDAM, select menu items with the CURSOR UP/DOWN
key on the remote control transmitter. The selected item will be highlighted. When not all menu items fit on the screen, move the CURSOR UP/DOWN key to display the next / previous menu items.
• With the CURSOR LEFT/RIGHT keys, it is possible to:– Activate the selected menu item.– Change the value of the selected menu item.– Activate the selected submenu.
• When you press the MENU button twice, the set will switch to the normal user menus (with the SDAM mode still active in the background). To return to the SDAM menu press the OSD / STATUS button.
• When you press the MENU key in a submenu, you will return to the previous menu.
How to store settingsTo store settings leave the SDAM (at top level SDAM main menu) with the Standby button on the remote.
How to exitSwitch the set to STANDBY by pressing the power button on the remote control (if you switch the set 'off' by removing the AC power, the set will return in SDAM when AC power is re-applied). The error buffer is not cleared.
5.2.2 Customer Service Mode (CSM)
PurposeWhen a customer is having problems with his TV-set, he can call his dealer. The service technician can than ask the customer to activate the CSM, in order to identify the status of the set. Now, the service technician can judge the severness of the complaint. In many cases, he can advise the customer how to solve the problem, or he can decide if it is necessary to visit the customer.The CSM is a read only mode; therefore, modifications in this mode are not possible.
How to enterTo enter the CSM by pressing user remote control and key in the code123654. After switching ON the Customer Service Mode, the following screen will appear:
Figure 5-2 CSM menu
• Indication of the actual mode CSM = Customer Service
Mode• Reserved.• Software identification of the main micro controller (see
paragraph 5.2.1 for the explanation) • Reserved item. • Indicates TV system and or not receiving an “IDENT” signal
on the selected source. It will display “NOT TUNED”• Error code buffer (see paragraph 5.4 for more details).
Displays the last five errors of the error code buffer.
How to exitUse one of the following methods:• Press one of the buttons “Menu”, “OSD” or “Standby” of
the remote control keys. • Switch-off the TV set with the AC power switch.
5.3 Problems and Solving Tips (Related to CSM)
5.3.1 Picture Problems
Note: Below described problems are all related to the TV settings. The procedures to change the value (or status) of the different settings are described.
L L L L A A A B C D X . Y SE R R X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X
C L E A R C L E A R ?O P
O P
T I O N S >>A K B
T U N E R >W H I T E T O N E >G E O M E T R Y >A U D I O >
CL 26532046_078.eps260402
1 C S M23 AAABCD X.Y4 AKBS5 TV SYSTEM / NOT TUNED6 ERROR BUFFER
CL 26532046_002040402
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Service Modes, Error Codes and Fault FindingEN 20 L01.1A AC5.
No colours / noise in pictureCheck CSM line 5. Wrong colour system installed. To change the setting:1. Press the MENU button on the remote control.2. Select the INSTALLATION sub menu.3. Select and change the SYSTEM setting until picture and
sound are correct.4. Select the STORE menu item.
Colours not correct / unstable pictureCheck CSM line 5. Wrong colour system installed. To change the setting:1. Press the MENU button on the remote control.2. Select the INSTALLATION sub menu.3. Select and change the SYSTEM setting until picture and
sound are correct.4. Select the STORE menu item.
Picture too dark or too brightIncrease / decrease the BRIGHTNESS and / or the CONTRAST value when:• The picture improves after you have pressed the “Smart
Picture” button on the remote control. • The picture improves after you have switched on the
Customer Service ModeThe new “Personal” preference value is automatically stored.
White line around picture elements and textDecrease the SHARPNESS value when:• The picture improves after you have pressed the “Smart
Picture” button on the remote control. The new “Personal” preference value is automatically stored.
Snowy pictureCheck CSM line 5. If this line indicates “Not Tuned”, check the following:• No or bad antenna signal. Connect a proper antenna
signal.• Antenna not connected. Connect the antenna.• No channel / pre-set is stored at this program number. Go
to the INSTALL menu and store a proper channel at this program number.
• The tuner is faulty (in this case the CODES line will contain error number 10). Check the tuner and replace / repair if necessary.
Snowy picture and/or unstable picture• A scrambled or decoded signal is received.
Black and white pictureIncrease the COLOR value when:• The picture improves after you have pressed the “Smart
Picture” button on the remote control. The new “Personal” preference value is automatically stored.
Menu text not sharp enoughDecrease the CONTRAST value when:The picture improves after you have pressed the “Smart Picture” button on the remote control. The new “Personal” preference value is automatically stored.
5.3.2 Sound Problems
No sound or sound too loud (after channel change / switching on)Increase / decrease the VOLUME level when the volume is OK after you switched on the CSM. The new “Personal” preference value is automatically stored.
5.4 ComPair
5.4.1 Introduction
ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages:• ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you systematically through the repair procedures.
• ComPair allows very detailed diagnostics (on I2C level) and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C commands yourself because ComPair takes care of this.
• ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is working) and all repair information is directly available. When ComPair is installed together with the SearchMan electronic manual of the defective chassis, schematics and PWBs are only a mouse click away.
5.4.2 Specifications
ComPair consists of a Windows based faultfinding program and an interface box between PC and the (defective) product. The ComPair interface box is connected to the PC via a serial or RS232 cable. In case of the L01 chassis, the ComPair interface box and the TV communicate via a bi-directional service cable via the service connector (located on the Main panel, see also figure 8-1 suffix D). The ComPair faultfinding program is able to determine the problem of the defective television. ComPair can gather diagnostic information in two ways:• Automatic (by communication with the television): ComPair
can automatically read out the contents of the entire error buffer. Diagnosis is done on I2C level. ComPair can access the I2C bus of the television. ComPair can send and receive I2C commands to the micro controller of the television. In this way, it is possible for ComPair to communicate (read and write) to devices on the I2C busses of the TV-set.
• Manually (by asking questions to you): Automatic diagnosis is only possible if the micro controller of the television is working correctly and only to a certain extend. When this is not the case, ComPair will guide you through the faultfinding tree by asking you questions (e.g. Does the screen gives a picture? Click on the correct answer: YES / NO) and showing you examples (e.g. Measure test-point I7 and click on the correct oscillogram you see on the oscilloscope). You can answer by clicking on a link (e.g. text or a waveform picture) that will bring you to the next step in the faultfinding process.
By a combination of automatic diagnostics and an interactive question / answer procedure, ComPair will enable you to find most problems in a fast and effective way. Beside fault finding, ComPair provides some additional features like:• Up or downloading of presets.• Managing of preset lists.• If both ComPair and SearchMan (Electronic Service
Manual) are installed, all the schematics and the PWBs of the set are available by clicking on the appropriate hyperlink. Example: Measure the DC-voltage on capacitor C2568 (Schematic/Panel) at the Monocarrier.
• Click on the “Panel” hyperlink to automatically show the PWB with a highlighted capacitor C2568.
• Click on the “Schematic” hyperlink to automatically show the position of the highlighted capacitor.
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Service Modes, Error Codes and Fault Finding EN 21L01.1A AC 5.
5.4.3 How To Connect ComPair
1. First install the ComPair Browser software (see the Quick Reference Card for installation instructions).
2. Connect the RS232 interface cable between a free serial (COM) port of your PC and the PC connector (marked with “PC”) of the ComPair interface.
3. Connect the AC power adapter to the supply connector (marked with “POWER 9V DC”) on the ComPair interface.
4. Switch the ComPair interface OFF.5. Switch the television set OFF (remove the AC power).6. Connect the ComPair interface cable between the
connector on the rear side of the ComPair interface (marked with “I2C”) and the ComPair connector on the mono carrier (see figure 8-1 suffix D).
7. Plug the AC power adapter in the AC power outlet and switch on the interface. The green and red LEDs light up together. The red LED extinguishes after approx. 1 second while the green LED remains lit.
8. Start the ComPair program and read the “introduction” chapter.
Figure 5-3 Compair connection
5.4.4 How To Order
ComPair order codes:• Starter kit ComPair32/ SearchMan32 software and
ComPair interface (excluding transformer): 3122 785 90450
• ComPair interface (excluding transformer): 4822 727 21631
• Starter kit ComPair32 software (registration version): 3122 785 60040
• Starter kit SearchMan32 software: 3122 785 60050• ComPair32 CD (update): 3122 785 60070• SearchMan32 CD (update): 3122 785 60080• ComPair interface cable: 3122 785 90004
5.4.5 Error Buffer
The error code buffer contains all detected errors since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is written at the left side and all other errors shift one position to the right.
5.4.6 How To Read The Error Buffer
You can read the error buffer in 3 ways:• On screen via the SDAM (only if you have a picture).
Examples:– ERROR: 0 0 0 0 0 : No errors detected– ERROR: 6 0 0 0 0 : Error code 6 is the last and only
detected error– ERROR: 9 6 0 0 0 : Error code 6 was first detected and
error code 9 is the last detected (newest) error• Via the blinking LED procedure (when you have no
picture). See next paragraph.• Via ComPair.
5.4.7 How To Clear The Error Buffer
The error code buffer is cleared in the following cases:• By activation of the CLEAR command in the SDAM menu:• If the content of the error buffer has not changed for 50
hours, it resets automatically. Note:When leaving SDAM by disconnecting the set from AC power, the error buffer is not reset.
5.4.8 Error Codes
In case of non-intermittent faults, clear the error buffer before you begin the repair. These to ensure that old error codes are no longer present. If possible, check the entire contents of the error buffer. In some situations an error code is only the result of another error code and not the actual cause (e.g., a fault in the protection detection circuitry can also lead to a protection).
86532027_003.EPS050898
PC VCR I2CPower9V DC
ERROR Device Error description
Checkitem
Diagram
0 Not applicable
No Error
1 Not applicable
X-Ray Protec-tion (USA)
2465, 7460
A2
2 Not applicable
HorizontalProtection
7460,7461,7462,7463, 6467
A2
3 TDA8359/TDA9302
Vertical Protection
VloAux+13v
A2,A3
4 MSP34X5/TDA9853
MAP I2C iden-tification error
7831 A9
5 TDA95XX POR 3.3V / 8VProtection
7200,7560, 7480
A1,A2.A5,A6,A7
6 I2C bus General I2C bus error
7200,3624, 3625
A7
7 Not applicable
- - -
8 Not applicable
E/W Protection (LargeScreen)
7400,3405,3406, 3400
A2
9 M24C08 NVM I2C identificationerror
7602,3611,3603, 3604
A7
10 Tuner Tuner I2Cidentificationerror
1000, 7482
A2,A4
11 TDA6107/8 Black currentloop protection
7330, RGBamps,CRT
B1,B2
12 M65669 MAP I2C iden-tification error(USA)
7803 P
-
Service Modes, Error Codes and Fault FindingEN 22 L01.1A AC5.
5.5 The Blinking LED Procedure
Via this procedure you can make the contents of the error buffer visible via the front LED. This is especially useful when there is no picture. When the SDAM is entered, the LED will blink the contents of the error-buffer. • n short blinks (n = 1 - 14),• when all the error-codes are displayed, the sequence
finishes with a LED blink of 3 s,• the sequence starts again. Example of error buffer: 12 9 6 0 0 After entering SDAM: • 12 short blinks followed by a pause of 3 s,• 9 short blinks followed by a pause of 3 s,• 6 short blinks followed by a pause of 3 s,• 1 long blink of 3 s to finish the sequence,• the sequence starts again.
5.6 Protections
If a fault situation is detected an error code will be generated and if necessary the set will be put in the protection mode. Blinking of the red LED at a frequency of 3 Hz indicates the protection mode. In some error cases the microprocessor does not put the set in the protection mode. The error codes of the error buffer can be read via the service menu (SDAM), the blinking LED procedure or via ComPair. To get a quick diagnosis the chassis has two service modes implemented:• The Customer Service Mode (CSM).• The Service Default Alignment Mode (SDAM). Start-up of
the set in a predefined way and adjustment of the set via a menu and with the help of test patterns.
5.7 Repair Tips
Below some failure symptoms are given, followed by a repair tip.• Set is dead and makes hiccuping sound “MainSupply” is
available. Hiccupping stops when de-soldering L5561, meaning that problem is in the “MainSupply” line. No output voltages at LOT, no horizontal deflection. Reason: line transistor 7460 is defective.
• Set is dead, and makes no soundCheck power supply IC 7520. Result: voltage at pins 1, 3, 4, 5 and 6 are about 180 V and pin 8 is 0 V. The reason why the voltage on these pins is so high is because the output driver (pin 6) has an open load. That is why MOSFET 7521 is not able to switch. Reason: feedback resistor 3523 is defective. Caution: be careful measuring on the gate of 7521; circuitry is very high ohmic and can easily be damaged!
• Set is in hiccup mode and shuts down after 8 s.Blinking LED (set in SDAM mode) indicates error 5. As it is unlikely that µP “POR” and “+8V protection” happen at the same time, measure the “+8V”. If this voltage is missing, check transistor 7480.
• Set is non-stop in hiccup modeSet is in over current mode; check the secondary sensing (opto coupler 7515) and the “MainSupply” voltage. Signal “Stdby_con” must be logic low under normal operation conditions and goes to high (3.3 V) under standby and fault conditions.
• Set turns on, but without picture and soundThe screen shows snow, but OSD and other menus are okay. Blinking LED procedure indicates error 11, so problem is expected in the tuner (pos. 1000). Check presence of supply voltages. As “Vlotaux+5V” at pin 5 and 7 are okay, “VT_supply” at pin 9 is missing. Conclusion: resistor 3460 is defective.
• Set turns on, but with a half screen at the bottom. Sound is okayBlinking LED (set in SDAM mode) indicates error 3. Check “Vlotaux+11V” and “+50V”. If they are okay,
problem is expected in the vertical amplifier IC 7471. Measure with a scope the waveform on pin 17 of the UOC. Measure also at pin 1 of IC 7471. If here the signal is missing, a defective resistor R3244 causes the problem
-
Block Diagram, Supply Voltage, and Testpoint Overview 23L01.1A AC 6.
CL 36532039_012.eps250403
C4
C5
5604 3611
360336043625
3624
56035602
DAF (34" only)G
CRT1 ECO SCAVEMB2
2
A6
A5 A6
L6
L7
L5
L8
L10
L9
A13
A2
A1
A13 A4
A4 A5
A8A9
A10
OL
CONTROLA7 +3.3V
36063607
+3.9V
+3.3V
C2
C1
63
166012MHz64
R
POWER DOWN
STATUS1
STATUS2
D
KEYBOARD-_PROTN
EW-PROTECTION
ARDN
ARDN
7606
7200-BTDA95XX
I/O
VSTPWM-DAC
ROMRAM
CPU
IICBUS
TRANSCEIVER
I/OPORTS
6968 7
72
71
3
8
6
5
66 61 59
1
2
IR 67
LED 5
80
7602M24C08
EEPROM(NVM)
SDA
SCL
COMB-BYPASS
A10
A16
70 COMB-SEL-CVBS0 or AV2
A16 STANDBY-CON
A278 BASS PANORAMA77 TREBLE-BUZZER-HOSP-APP
A8
A8
A1
73 VOLUME/MUTE
TILT
SDA
SCL
451
2
3
5
6
OROR
9641
9631
SDM
3172ON
1/10PAGES
MEMORY
TELETEXT
+OSD
CVBS SYNC
A2
L2
AL)
STAGE OUTPUTCIRCUIT
3334
3332
3336
02211
R.FL.IL
02781
2 SCAVEMCOIL
RT.FL.IL
0221
0261
DAFCIRCUIT0233
5445
3
1
FOCUS VG2
EHT
0220
0244
1 2 3 4 5
A B C D
10
6
EHT info
A4
34693490H flybk
VIDEO SUPPLY
A3VGUARDA5BLK-IN
A1POWER-DOWNA6EHT o
200V
VT_SUPPLY
FILAMENT
A
B
D
C
5
11
6485
7
12
8
9
6488
6487
3494
VLOTAUX +50V
VLOTAUX +13V
VLOTAUX +5V A
+8V B
3488
02581
2
1
2
HOR.DEFL.COIL
3460
3455
34467441
7443, 74503452
5480
6486
3464
2444
PROTCIRCUIT
PROTCIRCUIT
+13V
34476447
74803450
7482
BKL
V12
V11
V13
V14
V15
V16
4
7330TDA6107Q
2
1
3
8
5
9
7
R
G
B
EHT-INFO
Filament
+200VA
R
200VA
+13V
+13V
SCAVEMPROCESSING
+200VA
3340
2340 1 2 3 4 5
3341
3342
R
G
B
CRT
25kV
FOCUS
EHT
EH
T
VG2
8
6
11
10 9 5 7 1
0165AQUADAG
ERR9
ERR6
ERR5
ERR2
ERR11
ERR2
D
OR
POWER-DOWN6601
GB
EHOL
VLOTAUX +50V
IF DAF PANEL IS MOUNTED
5493
+
3451
0298
3251
3404
7400STP3NC60FP
3405
7444
3259EHT info
H flybk
2254
3242
SYNCHRONISATIONA6
TILT INTERFACEA16
FRAME DEFLECTIONA3
A7
A2
A2
S2
F1
F2
L4
F3
S1
11
30H DRIVE
V DRIVE+
V DRIVE-
V DRIVE+
V DRIVE-
HV
9
17
7
2
1
5
31
34
7200-DTDA95XX
H-DRIVE2nd LOOPH-SHIFT
16
H/V SYNCSEPARATOR
H-OSC+PLL
EW+
GEOMETRYVIDEO IDENT
5241+8V
VLOT AUX +13V
A7A1
A1
A7
3247EHT info
EHT o
A2
A2
V-DRIVE+
GEOMETRY
3244S3
3249S4
EW DRIVE/EWD-DYN
BASS_PANORAMA
153250
S5
VLOTAUX +13VVLOTAUX +50V
3431
(OPTION
7471TDA8359J
FRAMEOUTPUT
only for sets with E/W correction
only for sets with panorama
D
SG
34891400
2454
1
4 3
2
7
9
4
E/WCIRCUIT
E/W PROTECTION
VCONTROL
2
HODECO
02221
2
VEDECO
F4
1
3
5
6
2
V1+
VP
VOA
VM
VOB
V1-
5472
5471
3479
3471
VGUARDCIRCUIT
VGUARD
6470
02681
2
TILTDEFL.COIL
ERR3
ERR8
ERR1
7000TDA8941P
TILT
TILT OUTPUT
PICTURWIDT
CONTR
TV
POWER SUPPLY 0212
43
2
2
3
4
17
16
14
13
5
38
9
13504
P1
P2
P3
P5
P4
0211
150-250VSINGLE RANGE
90-276VFULL RANGE
3543
5562 3564A
2564
3544
3558
7560
2567
7561, 75627564
6520
2521
A1
FRONTINTERFACE(PARTLY)
Q1
A2
A2
A7
t
1515
5520
7580
7520TEA1507
DRAIN
DRIVER
SENSE
DEMAG
VCC
CONTROLIC
CTRL
ENERGIZINGCIRCUIT
AC
DC
65005500 :5502
12
11
N.C.
N.C.
10
1
2
3
4
15000231
T4E
MAINSSWITCH
2503
A
0211
110V
6561
6562
MAIN AUX
E/W PROTECTION
POWER DOWN
VLOTAUX +13V
P65560 5564 5561
(2X)
6560140V
MAIN SUPPLY2561
PROTECTION
12V
+3.3V
3594
+3.9V
31
A7
A2
STDBY_CON
VCONTROL
HOT GROUND COLD GROUND
7540, 6540
REFERENCECIRCUIT
7541, 7542
STANDBYCIRCUIT
7515TCET1103
3532
3525
3523
3526
7521STP7NB60FP8
6
5
3522
3528
4
1
D
SG
ERR7
OR
2
1
3
1
2
02121
2
0231
MAINSSWITCH
6. Block Diagram, Supply Voltage, and Testpoint Overview
Block Diagram
V4
I1
I2
V10I4
I3V9
A1
0265
SDA
SCL
5201
5001
TV TUNER+
FM-RADIOTUNER
(OPTIONAL)
3001
3000
3213
7205
2203
3211
72021202
7203
6001BZX79-C33
LINE DEFLECTIONA2
TUNER IFA4
DEGAUSSING (34" only)G
FRONT I/OA12
A7
A7
COMB-BYPASSA7
VIDEO IF, SOUND IFA5
A5
B
A9A8
A13A12
A2
1506
3505PTH451C
1505DegaussingCoil
3507
3506
+t
3
1
1
2
+t +t
+t
FILTERSELECT
1000
7001, 7002
6, 7 9
1
1
2
2
10
FM
VIF_1
VIF_2
RF_AGC
1
VLOTAUX +5V
VT_SUPPLY
A
B
C
+8V
+8V
VT
AGC5
A7
A2
4
FM
IF11
18
38
7206
3230
3208
7201
MONO/AM_MONO_SOUND
33
48
19
22
23
24
SC1_LIN
LFRONT-IN
28 29
FMR QSS_AM_DEM_OUT
AUDIO CARRIERFILTERS
7200-ATDA95XX1002
1003
1004
VIDEOIF
AGC
SIF_1
SIF_2
VIDEOPLL
DEMOD.
VIDEOAMPLIFIER
SOUNDFM-DEMOD.DE-EMPH.
AUDIOSWITCH
SOUNDAMPL.+ AVL
QSSSOUNDIF + AGC
QSS MIXERAM DEMOD.
L1
V5
3210
COMB-BYPASS
40
471200 4.5MHz NTSC
5.5MHz PAL
6MHz AP MULTI
1201
A13'
SS-C-IN
RES.
45
A10
A10
SSY-CVBS-IN 44
A13
A13
A10
A10
A10
CVBS1-IN 42
7200-CTDA95XX
I/OSWITCHING
Y-DELAY
EHT INFOPROC.
EHT info
R-Y
B-Y
U
V
R
G
B
R
G
B
56
57
58
55
Y
VIDEOFILTERS
RGBMATRIX
RGBINSERT
BLACKSTRETCH
WHITESTRETCH
RGBCONTROL
OSD TEXTINSERT
BLUESTRETCH
WHITE-P.ADJ
VIDEOIDENT
V
L
SIDE AVC
V
02516
L3
R1
02196
3
1
MONO
V
L
R
CVBS-FRONT-IN
L-FRONT-IN
R-FRONT-IN
A
B
C
STEREO
AUDIO AMPLIFIERA8
HEADPHONEA12
FRONT INTFACE(PARTLY)
Q1
FRONT CONTRA12
A9
E
A10
C5
A9
A8
A11
A6
3833
3834 2847
A13
A10
NICAM + 2CS + BTSC (STEREO/SAP) DECODERA97831MSP34X5G
QSS-AM-DEM-OUT
FMR47
A5
MONO/AM-MONO-SOUND
78347835
6692TSOP1836
ON/OFF
+3V3
MAIN-OUT-L
44
A13 SC1-L IN 41
A13 SC1-R IN 42
A10 SC2-L IN 39
A10 SC2-R IN 40
A7 SDA 8
A7 SCL 7
25
4 SEL-MAIN-FRNT-RR
A1330 R OUT
L OUT
A7
A5
A5
31
MAIN-OUT-R24
51
52
AUDIODEMODULATOR
NICAM + 2CSBTSC, AM, FM
3832
ERR10
183118M432
7901 AN7522N (STEREO)7902 AN7523N (MONO)
6 2 L+
L8
9VOLUME MUTE
MONO/AM_MONO-SOUND
1MAINAUX_FB
ERR7
7209, 7210
FM RADIODE-EMPHASIS
0280
A2
4 L-
A3
10 R-
A4
12 R+R
L
R
4
3
2
1
02554
3
2
1
L+
L-
R-
R+
L+
L-
R-
R+
HEADPHONEC1C
L+
L-
R-
R+R-
R+
L+
L-
02541
2
3
4
5
0257
02461
2
3
4
5
OROR C2OR
SDA
SCL
COMPAIRCONNECTION(FOR SERVICE)
I
LE6691
1
1
KEYBO_PROT
KEYBO_PROTLOCAL
KEYBOARD
LOCALKEYBOARD
3908
VLOTAUX +13V MAIN AUX
020243
PAL/NTSCSECAM
DECODER
BASEBANDDELAY
MAIN SUPPLY140V
64696467
7462
7460BU4508DX
3493
74617463
LINE-OUTPUTDRIVER
5461
LINE
L3
3487
3222
3201
3202
3203
3204
3235
3221
5451
A2BKL-IN
BKL
+8V
V-OUT
R-V-ING-Y-INB-U-INFBL-IN
5251 5053 54
7204
V6
V7
V9
1
2
3
4
5
6
+
OSD
5205MAINAUX
INPUTSWITCHING
ERR4
TV
FM
6692TSOP1836
+3V3
IR
LE6691
A7
SETS WITHVIDEO OUT
ONLY
4905
REAR I/O CINCHA13
Y
U
V
B-U-IN
G-Y-IN
R-V-IN
SC1-RIN
SC1-LINV
L
AV1
YU
VIN
PU
T
R
A5
A5
A5
A5
CVBS1-IN
L-OUT
R-OUT
A9
A9
V
L
R
MO
NIT
OR
OU
TP
UT
R2-IN
L2-IN
V
LAV2
R
V-OUT
A77102, 7103
7101
STATUS 1STATUS 1
A7
A5A5
A10
A9
A5A9
A13
A10
A10
A10
C-IN
C-IN SS-C-IN
SYY-CVBS-IN
Y-CVBS-IN
4
65
15
4
32SVHS
STATUS2
10
911
AUDIO/VIDEOSOURCE SWITCHING
A107802HEF4053BT
A12LFRONT-IN
L2-IN12
13
RFRONT-IN
R2-IN5
3
CVBSFRONT-IN
Y-CVBS-IN
4812
4814
2
1
A9
SC2-RIN
SC2-LIN14
4 A9
A10
A5
A5
SY-CVBS-IN
SEL-MAIN-FRONT-RR
15
A13
A13
A13
A12
A12
6.5MHz AP PAL
-
24L01.1A AC 6.Block Diagram, Supply Voltage, and Testpoint Overview
CL 26532119_005.eps101202
1000
TUNER
+200VA 6
+13V
+13V+200VA
TO CRTFILAMENT
CRTB1 SCAVEM(OPTIONAL)
B2
TUNER IFA4
POWER SUPPLYA1
FRAME DEFLECTIONA3
VIDEO SUPPLY200V +200V
+13V
EHT
2340
6001BZX79-/C33
FOCUSVG2
2
5
9
67
FILAMENT FILAMENT
3494
5480
0220
3464
3340
3341
6485
VT_SUPPLY 33VVT_SUPPLY
2
3
5
4
0244
3
4
ANODE CRTFOCUS CRTVG2 CRT
3342
+5V (TO 6470)
+8V (TO 3008)
5202
VIDEO IFA5
VLOT AUX +50V
+13V
VLOT AUX +5V
TO 6445
VLOT AUX +5V
VLOT AUX +5V
VLOT AUX +13V
VLOT AUX
TO DEGAUSSING CIRCUITVLOT AUX +13V
CONTROLA7+8V (TO 4-0217) NOT USED
+5V (TO 2234)VLOT AUX
VLOT AUX +5V (TO 3619)
+8VB (TO 7101-C)
VLOT AUX +5V
AUDIO AMPLIFIERA8
VLOT AUX +5V (TO 9904 - 3912)
+8VA
3460
9420
7471
FRAMEOUTPUT
7330
RGBDRIVER
6
3
5001
5472
SYNCHRONISATIONA6
7200-D
SYNCPROC.
5241
+8V
VLOT AUX +50V
VLOT AUX +13V
+8V
+13V
+8V
+8VB
+8V
+8V (TO 3248)
7200-A
VIDEOIF
9
5832
AM + 2CS + BTSCODER
LOT AUX +5V
LOT AUX +5V
EAR I/O CINCH
+8V
DIO VIDEOURCE SWITCHING
7831
AUDIODECODER3
+5VA
+6V8
8V
46
33
3455
3447
3446
34886487
6488
7482
7480
6486
82
3450
3449
6481
3801
TILT INTERFACEA16
VLOT AUX +13V
M24C08EEPROM
3626TUNER MSP34X5G
AUDIO
39
(TO 6452,6468,2441, 3448,3453)
40217
TO 3400
RA13
(NVM)68 7
ERR9
ERR5
ERR10
1
2
0267
3
DECODER
ERR4
FORCOMPAIR
ONLY
Error Description0 No error1 X-Ray / over voltage protection2 High beam (BCI) protection3 Vertical guard protection4 I2C error while communicating with the sound processor5 Power ON reset (POR bit) 3.3V protection / +8V protection 6 General I2C error7 Power down (over current) protection8 EW protection (Large Screen only)9 I2C error EEPROM error10 I2C error PLL tuner11 Black current loop instability protection
ERROR CODE LIST
I2C and Supply Voltage Overview
POWER SUPPLY
2
3
4
A
A
17
16
14
3
10
13
12
11 N.C.
5
38
9
C4
C5
I1 I2
P1
P2
P3
P5
P6
P4
0211
150 - 250VSINGLE RANGE
90 - 276VFULL RANGE
5205
5602
5603
5604
4693
7901
7902
7200-B
5560 5564
3564
2564
5561
3543
5562
3549
3544
3557
3558
7560
2567
7561, 75627564
6520
2521
A1
CONTROLA7 TUNER IFA4
VIDEO IFA5
CONTROLA7
5520
7520TEA1507
DRAIN
DRIVE R
SENSE
DEMAG
VCC
CONTROLIC
CTRL
AC
DC
6500GBU6J
5500 :5502
1
1
66
61
59
8
1
2
3
4
1500
T4E
2503
6561
6562
6560
AUDIO SUPPLY GND
POWER DOWN
140V MAIN SUPPLY
12V MAIN AUX
2561
PROTECTIONCIRCUIT
AUDIO SUPPLYGND-FB
+3.3V
+3.3V
+3.3V (TO 3256)
+3.9VTO 3568
+3.9V
(TO 36063607,3633)
STBY_CON
HOT GROUND COLD GROUND
7540, 6540
REFERENCECIRCUIT
7541, 7542
STANDBYCIRCUIT
7515TCET1103
3532
3525
3523
3528
3526
7521STP7NB60FP8
6
5
35224
1
D
SG
5204
AUDIO AMPL.
SYNCHRONISATIONA6
+3.3V+3V3A
FRONT CONTROLA12
AUDIOOUTPUTSTEREO
AUDIOOUTPUTMONO
uC
7602
EEPROM(NVM)
OR
OR
LINEOUTPUT
3611
+3V3
LOT
LINE DEFLECTIONA2
5451
2450
MAIN SUPPLY
5445
33487
5
7
11
9
8
EW_Protection
MAIN AUX_FB
NICDEC
A9
FRONTINTERFACE
Q1
V
V
AUSOA10
583
+8VB
+
64
3625
7602
3624
3607 3606
3604
3603
65
72
71
7200-BSET
PROCESSOR
PART OFVIDEO-
PROCESSOR
ERR6
SDA
SCL
SCL
SDA
+3.9V
+3.3V
+3.9V
1000
3001
3000
45
AUDIO AMPL.A8
SCL
SDA
A7 A8
NICAM + 2CS +BTSC DECODER
A9
7831
3833
3832
78
SCL
SDA
3493
VLOT AUX +13V
MAIN AUX
H-DRIVE
VCONTROL
I2C BUS INTERCONNECTION DIAGRAM
3908
A8
6469 6467
02141
02141
2
3
1
A2
A2
A7
A2 A7
0231
MAINSSWITCH
-
A1 B4A2 A4A3 A5A4 A4A5 C3A6 B3A7 B3A8 B4A8a B4A9 B4A10 B4A11 B4A11a C3A12 C2A13 C2A14 C1A15 B2A16 B2C1 B6C2 B6C3 B6C4 B6C5 B6C6 E1F1 D8F2 D8F3 C8F4 C7I1 A7I2 A8I3 A7I4 A7L1 C6L2 E6L3 E7L4 E6L6 C7L7 E8L8 E8L9 C7L10 C7L11 D7P1 E5P2 E4P3 D3P4 C4P5 C4P6 D5S1 B5S2 A6S3 A7S4 A7S5 A7V1 B7V2 B7V3 B7V4 B5V5 B5V6 B5V7 B5V8 B5V9 A5V10 A6V20 A3V22 A4
7400
CL 16532119_007.eps191202
div DC / div
iv DC / div
div DC/ div
I01
0.1V / div DC200µs / div
I02
0.1V / div DC200µs / div
I04
L01
500mV / div DC20µs / div
L02
500mV / div DC20µs / div
L03
200V / div DC20µs / div
L04
20V / div AC5ms / div
L06 33V7 DC
L07 51V DC
L11 13V DC
L10 8V2 DC
P01 148V DC
P02
20V / div DC2µs / div
P03 16V1 DC
P04 3V3 DC
P06 126V DC
P05 12V DC
S01
10V / div DC20µs / div
S02
10V / div DC20µs / div
S03
500mV / div DC5ms / div
S04
500mV / div DC5ms / div
S05
500mV / div DC5ms / div
V04
10V / div DC20µs / div
V05
10V / div DC20µs / div
V06
10V / div DC20µs / div
V07
10V / div DC20µs / div
V08
10V / div DC5ms / div
1V / div DC20µs / div
V09
500mV / div DC10µs / div
V10
1V / div DC10µs / div
CRT panel copper track side
4
6
7
89 10 11
12
5
A01
200mV / div AC1ms / div
A02
200mV / div AC1ms / div
A04
200mV / div AC1ms / div
A05
200mV / div AC1ms / div
A06
200mV / div AC1ms / div
A07
200mV / div AC1ms / div
A08
200mV / div AC1ms / div
A08a
200mV / div AC1ms / div
A09
200mV / div AC1ms / div
A10
200mV / div AC1ms / div
A11
200mV / div AC1ms / div
A11a
200mV / div AC1ms / div
A12
200mV / div AC1ms / div
A13
10V / div DC20µs / div
A14
10V / div DC20µs / div
A15
10V / div DC1ms / div
A16
10V / div DC1ms / div
C01
500mV / div DC1ms / div
C02
500mV / div DC1ms / div
C03
200mV / div DC1ms / div
C04
10V / div DC100µs / div
C05
10V / div DC100µs / div
C06
10V / div DC2ms / div
F01
50mV / div DC5ms / div
F02
50mV /5ms
F03
1V / d5ms
F04
0.2V / 5ms
Block Diagram, Supply Voltage, and Testpoint Overview 25L01.1A AC 6.
Testpoint Overview
D
G S
D
G SB
9
1
C E
7521
1 4
8 5
7520
POWERTRAFO
5520
7471
7460
Mono carrier copper track side
BTSC NDBX
7861
FRAME
E/W
SUPPLYCONTROL
SUPPLY
LINE
7200 9631
TV-PROC.
HOT GROUND
7831
BTSC DBX1
5
18
2
10
9
TILT6
12 7901
AUDIOOUTPUT
1
4
7000
1
26
52 27
1
3 LOT5445
5
6 7
8
9
10
11
12
9641 SDM
-
26L01.1A AC 7.Circuit Diagrams and PWB Layouts
10 11
A
B
C
D
E
F
G
0211 C110 110212 A10213 B50231 C10251 E110282 F111500 B21515 A81540 F102500 C32501 C62502 B62503 C62504 C72505 C72506 B52507 D72508 C72509 C42515 B72516 B72520 F22521 E12522 D62523 D62525 E52526 D22527 E72528 E22540 E92541 F82560 D92561 D92562 B92563 D92564 C92566 C92567 B102568 G82569 G102580 B92581 A92590 B103500 C13501 D13503 C53504 A33506 C43507 C43508 C33509 B53510 B43511 C53519 E63520 F23521 F23522 E53523 E53524 E63525 D63526 E63527 E73528 D23529 D43530 D63531 D53532 C63541 E83542 E93543 E103544 F103545 F93548 E93550 F103552 F83557 A93558 A93560 C93561 C83562 D93563 D103564 B103565 A93566 G83567 C93568 C103569 F83570 D103580 A93590 A9
3591 B93594 E93595 E103596 E104500 D105500 C45501 C35502 B55520 C75521 D75560 D85561 E105562 C85564 D95565 G26500 B66520 E26522 D26523 D56524 D76525 E76526 D66540 F96541 E86560 D96561 B96562 C96563 D96564 C116565 A116566 F106567 D96568 E96569 G96570 G76580 A96582 B97515 E77520 D27521 C67522 C57540 F97541 F87542 F87560 A107561 D107562 C97564 C107580 A89500 B29501 C29502 C29503 B59504 B59505 A39506 B49507 C49508 B39509 C39510 B99511 B109530 G2
P5
220K
3596
0282
3564
3568
2
3
4
2566
470u
352
8K2
3563
12V
LE33CZ
*
A7-11
RES
*
6V8
A2-9
A5-90
TO 0251
RE
S
OF
A7-5
2u2
ideo
(12V)
A2-100
12V
-3V2
OF
0V
RES
0R1
TO
12V
A2-11
0V
11V5
For
ITV
onl
y TO 0283
OF
140V
3V3
11V5
A1
K
A2
FOR ITV ONLY
82K
3V2
10n
15K
3570
02511
P6
9511
2590
67
1IN
3OUT
7560
2
GND
39K
6564
BAS216
1540
P4
2569
6565
BAV70
PDTC143ZT7561
3543
220K
3595
4500
1N4148
6566
0n
63
4K7
3544
27u
5561
7564
BC857B
2567
47u
3550
EW_protection
+3.9V
+3.3V
MainSupply
MainSupplyGnd
Vcontrol
MainAux
AudioSupplyGnd
POWER_DOWN
+3.3V
Stdby_con
CL 36532039_013.eps010503
P5 12V DC
9
F
G
1 2 3 4 5 6 7 865
40
7542
BC857B1n
2541
3569
5K6
1K2
3520
5565
6569
BAS216
3552
10K
6570
(-V) STANDBY OPERATION
0V
9V
1u
6V8
*
HOT COLD
0V
1V8
220V AC 309V (317V)
BZ
X79
-B6V
2
HOT GROUND
COLD GROUND
PDTC114ET
0V
-V NORMAL OPERATION
"$" FOR MAINS 120V AC 170V (177V)
0V
3566
2K2
7540
BC547B
100n
2520
2568
3545
7541
9530
P1 148V DC
P2
20V / div DC2µs / div
P3 16V1 DCP4 3V3 DC
P6 126V DC
* FOR DIVERSITY LIST SEE PAGE 39
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply
OVERPOWER
LOGIC
CONTROL
CIRCUIT
MAXIMUMON-TIME
PROTECTION
VOLTAGECONTRLLEDOSCILLATOR
OVERTEMPERATUREPROTECTIOM
POWER-ONRESET
SUPPLYMANAGEMENT
FREQUENCY
PROTECTION
CONTROL
INPUTCONTROLCIRCUIT
BURSTDETECTOR
Drain
HVS
Sense
Demag
Driver
Vcc
Gnd
Ctrl
START-UP
CURRENT SOURCE
VALLEY
START-UP
CURRENT SOURCE
CURRENTSENSING
OUTPUTDRIVER
V
+t
t
V
2564
2m2
A
B
C
D
E
3
4
5
6
7
8
1 2 3 4 5 6 7 8 9
1
2
3565
330R
3508
470p
2507
5
5502
1234
3526
3507
DSP
P1
47R
3560
25606 7 8
9508
G5PA
1515
950935
06
1M5
B57237
3510
6522
P2
3528
25033
3567
2K2
4K7
2522
100n
BC857B
9506
1K
3557
2527
5564
3591
2K2
1n
2562
220R
356125
05
2n25501
DMF-2405
1 4
2 3
7562
3594
470R
5521
ZPB
3522
9503
3527
1
3523
5560
3501
3M3
6582
STPS10L60D
3M3
3500
3548
15K
2528 1n
6500
56K
35246568
BYW76
9500
3542
1K5
*
0V
2
OF
9V
FOR ITV ONLY
4
*
DEGAUSSING
4
*
1V7
-3V
2
10V
1
SDW
For AV V
*
12V4
(13V8)
1N50
62
*
*
11V8
*
17V
POWER SUPPLY
11V8
*
HOT
Jumper
1n5
*
100u
0V
"$"
*
T4E.250V
3V
**
"$"
MAINS
*
OR
2V
*
2n2
S
2V8
(7V7)
OR
2
*
RE
S
0V
680p
*
"$"
*
D
USA
for ITV only
ONLY
*90 - 276 V FULL RANGE
*
1
*
0V
16V8
*
(6V7)0V
4
1V3
/
8V8
MAINS SWITCH
*
*
TO 0283
*
0V
0V
0V
3
3
*150 - 276 V SINGLE RANGE
*
COLD
1n5
*
G
BYV29X-500
*
*
TO 1505OFCOIL
*
2523
47K
3580
2509
9504
TEA15077520
1
2
2526
270R
3519
2540
7522
BC847B
2500
470n
7521
6561
SB340
6525
2506
BY
D33
D
6520
23
14
1500
9501
3529
47K
2n2
2502
6523
1N41
48
6562
EGP20DL
65
5500
DMF-28201 4
2
5562
470p
2525
9505330R
3558
9502
7515TCET1104G
2508
470p
P3
3531
2n2
2501
2504
35047580BC857B
3511
BAS316
6563
0231
1 3
2 4
5 6
6560
2561
47u
2580
6524
0213
1
2
3503
BZ
X28
4-C
22
6526
4
5
8
9 10
11
12
13
14
15
16
17
182
3
10K
3530
5520
2516
12K
3562
10
25
9507
22u
2521
2K2
3532
150R
3590
2515
470R
3541
9510
3509
PD
Z-1
0B
6541
0211
02121
2
2581
22u
BA
S31
6
3525
1K
VlotAux+13V
6580
EAR
MainSupplyGnd
-
A
A
B
C
D
E
F
G
0220 A20221 B60289 A80298 F60319 B20321 D8
10 11
10 11
0322 G51400 B41402 E71410 F71411 C21412 F112400 F42401 F42402 F32404 G52405 D32415 E32420 B42421 B42422 B42423 B42441 F92443 F102444 G82448 A92450 A52451 A62452 B22453 B52454 B52455 D32456 D62457 D62458 C62459 B62460 D22461 E22462 E42463 D42464 F62465 D42466 E52467 E52468 E52469 E62470 E52480 D92481 D82482 A102484 E62485 C102486 D92487 D92488 D92489 D102490 C62491 E82492 C102493 F53400 E33401 F33402 F33403 G33404 G33405 G43406 G43407 G43408 G53410 G53411 F43430 E63431 F63441 E103442 F93443 F103445 F83446 F83447 E93448 E103449 D103450 D103451 F83452 F83453 F103454 G93455 D93456 F93457 F103458 C6
3459 D63460 C103461 C63463 D43464 D83465 A103468 F23469 B93481 C83482 C93483 B103484 C93485 A63486 A63487 A53488 C93489 C33490 B93491 D23492 D23493 D33494 B93499 D24430 D24431 C25400 F45401 F45445 B75450 B25451 A65452 D45453 C35457 C65461 D35463 E65464 E65465 E65480 E86400 F36401 F56402 F36403 F36445 F86447 F86448 G106449 B96452 B46453 F106460 D46461 E46462 E26463 E26464 C26465 D56466 D56467 C26468 C26469 C36481 D106482 E106483 C96485 B86486 D86487 C86488 D86490 D27400 G47441 E97443 G97444 C47450 F97460 D37461 D27462 F17463 E27480 E97482 D109420 B29422 D89423 D29424 F39426 F39451 A69453 A59460 D69461 E59462 E69463 E69464 F6
L9
470u
2489
6482
BZX79-C9V1
6448
3460
3K9
L7
1K34574
1M3443
3453
L10
2485
4u7
1.9V
A3-65
A5-16
A5-36
5V7
A6-18
A1-11
X79C5V6
0R
A6-16
RE
S
*
9V
RES
A1-100
*
A6-23
*
A2-16
5V
*
200V
AK
A1-9
A2-69
X79-B6V2
0R
0V
401
431
3483
2492
3n3
100R
3441
L6
3450
100R
5
6481
2482
2
BZX384-C6V8
6453
1412
7482BD135
3448
L5
11 6
100R
3449
2443 47n
3465
1K
EHTinfo
VideoSupply
VlotAux+13V
+13V
Vcontrol
POWER_DOWN
VlotAux+13V
VT_Supply
Filament
Vguard
Hflybk
VlotAux+13V
EW_protection
VlotAux+50V
BLK-IN
VlotAux+5VA
+8VB
EHTo
CL 36532039_014.eps010503
LIST SEE PAGE 39
L11
/
F
G
PDTA114ET
1 2 3 4 5 6 7 8 9
3403
0322
L4
3407
6401
6403
3404
3408
942
1410
TV
3405
1u2444
0298
2400
3454
G
*
0V
6V3
*
*
0V
*
*
*
*
*
A6-22
*
E/W CORRECTION
ONLY FOR SETS WITH
S
*
**
*
2V
Width Control(reserved)
* 5V6
*
For Picture
TO DAF
*CCT. *
137V
*
D
PANEL
*
*
BZ
3
3402
OFTO 0261
3
3410
10K
9426
344
15K
3452
7450
3406
640
2402
2401
BC557B7443
2404
3451
34
344
5K6
7400
EWdrive|EWD_dyn
L1
500mV / div DC20µs / div
L9 5V DC
L11 13V DC
L7 51V DCL6 33V7 DCL5 191V DCL4
20V / div AC5ms / div
L3
200V / div DC20µs / div
L2
500mV / div DC20µs / div
L10 8V2 DC
* FOR DIVERSITY
Circuit Diagrams and PWB Layouts 27L01.1A AC 7.
Mono Carrier: Line Deflection
FOCUS
VG2
EHT
K545
0
D
E3447
1 2 3 4 5 6 7 8 9
BC857B7441
A
B
C
5457
47u
2450
EGP20DL
6486
2448
1411
2463
3489
L1
3499
3484
3K9
0319
2469
2455
47u
3486
3469
3K3
9463
1K34
92
2465
3468
2458
2451
L2
3442
9420
2466
2415
6462
4R7
3464
BZ
X79
-C33
6483
BU4508DX7460
BAS216
6464
4430
1
4
47u
2480
BAV996449
9462
L3
6R8
3455
BZ
X28
4-C
10
644554
00
9460
23
14
1
2
3
4
5
5452
100MHZ
2461
33R
3463
9464
2422
*
*
*
*
RES
*
HORIZONTAL
220u
*
126V
PANEL
5V2
5V
13V
3
*
*
A2-69
PANEL
RES
*
*
*
*
*
1V5
A7-7
*
*
A2-16
BZ
*
*
0V
*
TO 0244
*
* 0V
8V
8V9
*
0V
*
*
RES
RES
*
0213BOARDCORRECTION
*
0V
CU
15
5V2
*
*
TO N/S
TO CRT For ITV Only
RES
**
L.LI
N
*
*
0V
*
*
*COIL
*
*
13V3
*
A6-21
5V2
*
OF CRT
DEFLECTION
UDZS-10B
*
0V
*
LINE DEFLECTION
*
TO PICTURE TUBE
*
5V2
*
*
*
*
5V
*
13V3
*
*
**
*
9V
*
0V5
*
*
5V5
PANORAMA
*
*
*
11V6
*
ORTO 0221 OF
/
FOR CHINA ONLY
2467
9451
2421
6467
BAS216
7444
180p
2452
4R7
3494
3485
3461
15K
3459
2488
1m34
56
2420
6463
11
12
3
5
6
7
8
9
8K2
34905445
1
10
BA
V21
BY
D33
M
6490
4431
6466
BD1357480
0221VH
6447
1N41
48
6469
BY
D33
M
2462
6461
RG
P30
J
BYD33J
6485
5480
5401
5463
CI-
15
22u
5453
2490
6465
BA
V21
2454
9423
2487 47
u
9422
2491
6460
2481
470p
PDTC143ZT7462
1K3458
3481
2459
680p
02200289
3482
6400
3493
3430
5461
1
3 6
2460
6452
BC337-257461
CU
15
5465
43 2
1
2493
9453
2470
2468
4R7
3488
EGP20DL
6488
3487
4R7
2457
2423
2453
2464
14021
2
3
3491
2456
BYD33D
6487
3400
27u
5451
6468
BAS216
CU
20d
5464
12
34
2486
470u
2484
1400
G5P
A
2441 1u
0321
2405
7463BC327-25
VlotAux+13V
VlotAux+13V
Bass_panorama
MainAuxMainAux
9461
Hdrive
VideoSupply
VlotAux+13V
MainSupplyGnd
EHTinfo
Filament
MainSupply
+13V VlotAux+5VA
VlotAux+13V
DAF
LOT
-
3MUH3---
100V 10N470K
SMGK(SF)
10
A
B
C
D
E
F
A
B
C
D
E
F
0222 C82471 B52472 C62473 B72474 D32475 D32476 C73470 C63471 D73472 D7
---
9 10
9
63V 150N470K
3R93R93R3
---
3R91R5
3473 D73474 D33475 D33477 C73478 D73479 D73480 D63495 C73496 C7
21RF 29RF
GL
3497 C73498 C34470 C65471 C75472 B76470 B86476 C67471 B49471 C79472 C6
2R2
21RF
LG.PH
SMD_JUMPER ---3U3
A2-65
6MUH86U8
SMD_JUMPER
JUMPER3MUH3
6U8
---
100V 10N 63V 150N
3MUH3
6R84R73R9270K
---
470K
LG.PH
24WR
---1R5
---
LG.PH
JUMPER
CH/INAP
3R93R9
3U3
Vguard
CL 36532039_002.eps010503
DCdiv
F4
0.2V / div DC5ms / div
4R7
63V 150N
APLATAM
SM0805 470K63V 150N
1 2 3 4 5 6 7 8
3472 2R2
SM0805 390K
3473
32WSRF
4470
34703471
LG.PH LG.PH
28WSRF
1R5
TUBE SMGK
3U3
REGION
ITEM
2472
3R3
32V
5471
3R93R33R91R5
34RF
3480
3R3
3U3
1R53R32R24R7
SM0805 390K63V 150N
SM0805 270K
TOS LG.PH
21RF
63V 150N
3R93R92R2---
6U8---
---
LG.PH
34RF
---
---
---
---
---
---
---
---
---
---
SMGK
34RF
100V 150NSM0805 220K
3R33R91R5
6U86U8
1R5
6U8
NAFTA
63V 150NSM0805 470K
3R32R22R2
9472
25RF
63V 150NSM0805 470K
3R93R93R91R5
6U8---
---
LG.PH
21RF
100V 10N270K5R63R36R8---
6U8---
---
MMEC
21RF
100V 10N270K5R63R36R8---
6U8---
---
63V 150NSM0805 220K
3R93R92R21R5
3U3---
---
LG.PH
29RF
63V 150NSM0805 470K
3R93R93R31R5
6U8---
---
ORION
29RF
63V 150NSM0805 470K
3R93R92R21R5
6U8---
---
LG.PHF1
50mV / div DC5ms / div
F3
1V / div5ms /
F2
50mV / div DC5ms / div
28L01.1A AC 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Frame Deflection
GUARD
1:1
25uA
R R
R
AINPUT/FEEDBACK
B
13V
TUBE
*
*
3472
A
K
63V 150N270K
1 2 3 4 5 6 7 8
63V 150N2472
6U8
---
SET
---44701R5
5471
A6-19
-0V3
DEFLECTION
7V
FRAME DEFLECTION
0V
COIL
*
*
5V*
*
---9472
6V
1V
5V
A6-20
3470
6V
3R3
6U8---
1R53R9
---
3R9
6MUH83MUH3
48V
PHCO
63V 150N330K3R33R33R31R5---
3U3
*
1V
3475
2K2
2472
*
0V
VERTICAL
32WR 29RF28WR
L2K3
REGION
3R93480
3496
100K
3479
2K7
9472
VOG
3
VP
9471
100n
2471
2R2
AK
5472 3MUH3
470K3471
3R33473
EU
MODEL
6470BAV99
100K
3497
F2
F3
3495
22K
6476
BZ
X79
-C12
3473
547134
98
12K
2K2
3474
3470
3477
150R
3471
5472
02221
2
150R
3478
F42n2
2474
TDA8359J7471
5
GND
6
VFLB
1 VI+
2 VI-
9VM
7
VOA
4VOB
8
3480
4470
100n
2473
3472
F1
2475
2n2
2n7
2476
Vdrive-
Vdrive+
VlotAux+5VA
+13V
VlotAux+50V
-
CL 36532039_015.eps010503
DCiv
I2
0.1V / div DC200µs / div
I4
1V / div DC20µs / div
GND
G
0265 A40283 C20285 B21000 B31002 D71003 E71004 F72001 D3
9
9
A
B
C
D
E
F
G
A
B
C
D
E
F
2002 D32003 D52004 B52005 A52006 B62007 B62008 C52009 C72010 A43000 C33001 C33002 C63003 B73004 C73005 C73006 E53007 D53008 D53009 D63010 D33011 D44001 D54002 F74003 E64004 E74005 E64006 E54011 F74012 G75001 B65002 C55003 F86001 A56002 C66003 C66004 E56005 E66006 F46007 F47001 F57002 F69001 D6
*
A5-27
A5-28
*A5-29
5V
A5-25
A5-26
5003
2ING
5O2
4004
RF_AGC
SIF_1
SIF_2
VIF_2
VIF_1
1 2 3 4 5 6 7 8
4011
6007
4002
NAAPLNA (AP)ITEM
RES
LA/AP-NTSC
1000
50015002
UV1356A
47u820n
TEDH9-228
RES
ITEM
Tuner
820n5u6
UV1336TEDH9-200A
47u---
ENV56TEDH9-200A
27u820n
IF *
A7-3
K7260
JmpJmp
---
2K26K8
10n2K2
*0V
K2978
PDTC124ET
*
0V
1003 K627420033006300730084001400240034004
AP-multi CH-multi NA/LA/AP-NTSC
1002
*
Jmp---
M1971
---1SS356
PDTC124ET
F072
---
---
------------
JmpJmp---
60047001
K7257
Jmp1SS356
10n2K26K82K2------
Jmp
70027001
3
4
5
1N4148
6006
1004
1
2
83
1N4148
4012
COMB_BYPASS
Circuit Diagrams and PWB Layouts 29L01.1A AC 7.
Mono Carrier: Tuner IF
I1
0.1V / div 200µs / d
+5V ADCIF
FM
AGC
TUNER
MT
AS SCL SDA
FM-ANT
+5V
VT
100n
2007
1 2 3 4 5 6 7 8
2004
47n
1 2 3
3009
0265
1n0
2010
3000
100R
1
1002
10u
2005
470u
2006
2008
100u
6003
6002
3008
JMP
*
A7-14
FOR EMC ONLY
*
*
TUNER IF
A5-24
RE
S
*
RE
S
*
TO 0282
RES
4.3V
FM-RADIO ANTENNA
RE
S
*
*
A7-13
*
RE
S
RE
S
**
4.9V
*
RE
S
4.3V
*
OF
34V5
*
FOR ITV ONLY
*
RES
+FM RADIO(OPTIONAL)
5002
3010
BZ
X79
-C33
6001
2001
5
6
7 8
9
4003
PS1316
10001
10
11
12
13
14
15
2
3 4
BA
792
6004
3003
1K5
4005
I3
I4
I2
4006
0285
3011
3006
3004
8K2
9001
6005
4001
5001
2002
100R
3001
3002
2009
22n
I1
1IN
4O1
10SWI
100330
07
3005
100R
2003
10n
2
3
4
5
0283
SDA
SCL
VlotAux+5V
FM
+8V
VT_Supply
-
10
1V / div DC10µs / div
IF
VISION IF
AGC/AFC
QSS SOUND
AGC
SOUND PLL
DEEMPHASIS
1V9
1V9
A10-A
A13-41
A
B
C
D
E
F
G
0243 C60248 C20249 B20266 E110276 C21200 D7
A4-28
A8-43
10 11
10 11
A
B
C
D
E
F
G
9634
A10-42
1V9
9616
1201 E71202 E71670 D12201 C22202 C22203 D22204 D5
A9-42
2205 B32208 B82209 F42210 G32211 D82212 B72213 E22214 E22215 F22216 A102217 A102219 B42220 A32221 B22225 C72226 C82227 D102228 D102229 C112230 C112233 E22234 F62235 F92236 F72237 G82238 F62239 G62240 F73200 A83201 C53202 C53203 C53204 E53205 E53206 F53207 C83208 D83209 D83210 E63211 E83212 D63213 D63214 C73215 B73216 A63217 G53218 G43219 G33220 A3
A4-27
3221 A43222 A53223 F23224 F33225 F53226 E53228 A73229 C73230 B73231 A73232 C103233 F73234 E103235 E23236 F73237 F73238 G73239 G73240 F63637 C13638 D14203 B84204 C8
A11-42
FOR ITV ONLY
A4-25
4205 E24206 F24207 E24209 D9
4210 B84211 B84212 B24213 A24214 D104216 F94219 G24223 F25201 D75202 A95203 F85204 F25205 G25206 F36201 F46202 F56203 F86204 F86206 G47200-A B97200-C C37201 D87202 E87203 E77204 F57205 A47206 B77208 B77209 F77210 F89200 D79202 A99618 A99653 F29673 G2
2V5
A7-3
A5-42
A9-43
SET WITH PIP
A13-40
A4-29
0V
A10-B
1V7
A4-261V5
7V8
A9-44
1V9
A5-42
ES
3223
22n
2230
4u7
36
39
4u7
2229
520
15
18
19
22
23
24
25
26
32
2K100
223
1m2216
223 1n32 2K
620
BA
S32 220
2228
820p
3206
33K
0266
680R
3224 62
0
BA
S
100
32
3232
2K2
2227
4n7
32
FBL-1
RF_AGC
VIF_2
VIF_1
+8VA
V_OUT
V1-OUT
CVBSO
REFO
FMR
QSS_AM_DEM_OUT
QSS_AM_DEM_OUT
COMB_BYPASS
MONO|AM_MONO_SOUND
SIF_2
SIF_1
CL 36532039_016.eps010503
6M---
390100560
4u7
38.9M---
4.5M---
22068
5606u8
470
15082
6M539082
---
AP-NTSC AP-Multi-QSS
60 5606u8
45.75M---
China Multi-QSS AP-Multi
2068
38M6M
---
China-Multi
38M---
6M---
39082
P)
5604u7 4u7
38.9M
5M5/5M7/6M5
V7
10V / div DC20µs / div
V6
10V / div DC20µs / div
V5
10V / div DC20µs / div
V4
10V / div DC20µs / div
V8
10V / div DC5ms / div
V9 V
500mV / div DC10µs / div
BAS216
6201
0V
1 2 3 4 5 6 7 8 9
1V4
0V
A13-39
RES
A8-91
3V3
0V8A4-24
0V7
2V9 5V
A2-16
100MHz
RES
A1-90
R
1V2
100R
2236
1n03219 2210
470n
4219
4216
5205 100MHZ
2K29673 1K
0
3238
6202
BAS216
2239
1n0
5204 100MHZ 7210
BFS20
3218
82K 330
K
3239
BFS20
7209
6206
BZ
X38
4-C
6V8
BC857B7204
5206
9653
1n0
2237
1n0
2240
3217
330K
2209
4u74223
2238
1n0
AudioSupplyGnd_FB
AudioSupplyGnd
MainAux
EHTinfo
MainAux_FB
FM
NA/LAITEM
320932135201
56u8
45.75M---
4.5M---
2
120012013208
VIF(NA/LA/A
10031002
30L01.1A AC 7.Circuit Diagrams and PWB Layouts
Mono Carrier: Video IF + Sound IF
PAL/SECAM/NTSCDECODER
VIDEO FILTERSVIDEO IDENT
I/O SWITCHING
OSD
YUV
OSD/TEXT INSERT
BLUE STRETCH
WHITE-P. ADJ.
RGB/YUV INSERTBLACK STRETCHWHITE STRETCH
BASE-BANDDELAY LINE
LUMA DELAY
PEAKING
AMPL
SOUND
AMPL. + AVL
VIDEO
PLL DEMOD.
QSS MIXER AM
DEMODULTOR
AUDIO SWITCH
VIDEO
*
A13-35
RES
2V5
RE
S
SET WITH VIDEO OUT
A13-38
FOR ITV ONLY
RES
RES
1 2
4214
3 4 5 6 7 8 9
OF
2V5
0V
T0 0245
3V1
*
3V7
SET WITH YUV
A10-30A
4V
*
0V
8V1
*
1V5
3V3
A13-33
2V3
3V5
3V7
3V3
2V5
*
3V5
VIDEO IF + SOUND IF
FOR ITV ONLY
SET WITH PIP
*
SET WITH SVHS2V
*3V8
RES
2V5
RES
*SET WITH YUV
2V6
A13-32
2V5
TDA95XX
RE
S
0V
2V59620
2V5
RES
*
RES
FOR ITV ONLY
3V2
CRT
3V6
5V
3V5
PANEL
A12-31
2V9
A2-36
2V9
RES
A10-37A
2V6
A13-34
for
M’n
as o
nly
5V
RE
S
2V9
TDA95XX
RES
*
*
2V5
*
*
*
5V6
*
2V5
2217
3220
100R
10u
5202
V4
4213
220n
2219
BC847B7201
3201
100R
3231
680R
V3
4207
41
42
43
44
45
7200-C10
28
29
40
38
48
49
4210
4204
2220
470n
7206
BC847B
2213
22n
3 u
1K
3205
V10
357200-A
27
33
2
4212
3207 1K
560R
3226
3202
100R
3204
10K
V2
0248
7208BC857B
68R
3216
n4
3
4
5
6
V9
9202
3200
5
3221
560R
4206
46
47
5051 52 53
54
55
56
57
58
8
7203
3228
390K
2225
22n
1K0
3229
33 2 3 216
40 K
7202
3222
100R
100R
3214
3213
3209
02431
2
470R
3212
1202
G 2
I 1 O 3
4205
3210
VALUE
9618
2221
22n
2226
3n3
2214
22n
4211
V7
0249
2233
100n
2203
VALUE
1201
2G
1I 3O
3234
V5
22n
2215
4209
3637
5201
V6
2202
1200
G 2
I 1 O 3
4216
VALUE
K36
100R
3235
2212
3225
2208
560R
3215
2211
470n
3208
270R
3230
0276
2205
220n
3203 100R
4203
2201
3211
37
9200
1670
V8
3638
2204
100n
V1
BC857B7205
CVBS1-IN
+8V
SSY_CVBS-IN
+8V
+8V
+8V
+8V
G_Y-IN
B_U-IN
R_V-IN
BLK-IN
+8V
VlotAux+5V
SC1_LIN
LFRONT-IN
SS_C-IN
-
A2-16
B
C
D
E
F
A
B
C
D
E
F
2241 D52242 D42243 B52244 D52245 D62246 D72247 B7
A3-19
8
8
A
2248 B72249 B42250 B42252 C72253 C72254 A42255 B33241 D53242 B33244 B73245 D53246 D63247 D73248 D73249 C73250 C73251 B73254 A63256 B83257 A53258 B43259 A34254 A45241 A85242 B77200-D B59241 A8
A3-20
A2-21
A2-23
A2-22
820R
3244
2253
1n0
22n
2248
10u
5242
9241
3249
820R
2246
4u7
1n0
2252
100R
3250
1K0
3256
5241
10u
Vdrive+
Vdrive-
EHTinfo
+8VA
Hdrive
+3.3V
EWdrive|EWD_dyn
EHTo
+8V
CL 36532039_003.eps010503
34RF
LG.PH
50V 2N2 50V 10N
8K2470K (SMD)
SMGK LG.PH
680K (SMD)32478K23250
1 2 3 4 5 6 7
32V
1K680K (SMD)
100K (SMD)
32WSRF
NAFTA LATAMREGION
50V 2N2
TUBE LG.PH
ITEM
100K (SMD)
50V 10N
SM0603 100K4K7
SM0603 680K50V 2N2
LG.PH
29RF
SM0603 220K4K7
29RF
100K (SMD)8K2
680K (SMD)50V 2N2
TOS
100K (SMD)
2243
25RF
LG.PH
50V 2N2SM0603 270K
---SM0603 100K
21RF
MMEC
50V 6N8SM0603 270K
---SM0603 100K
21RF
AP
LG.PH
34RF
180K33R
470K (SMD)
100K (SMD)1K
28WSRF
3258
SMGK
50V 2N2SM0603 470K
50V 2N2SM0603 470K
4K7180K
34RF
LG.PH
50V 2N2SM0603 680K
8K2SM0603 100K
29RF
ORION
50V 2N2SM0603 680K
S5
500mV / div DC5ms / div
S4
500mV / div DC5ms / div
S3
500mV / div DC5ms / div
S2
10V / div DC20µs / div
S1
10V / div DC20µs / div
Circuit Diagrams and PWB Layouts 31L01.1A AC 7.
Mono Carrier: Synchronisation
+
H
V
H-DRIVE2nd LOOPH-SHIFT
VIDEO IDENT
H/V SYNC SEP.
H-OSC. + PLL
V-DRIVE
GEOMETRY
EWGEOMATRY
TELETEXT/ODSDISPLAY
A2-18
A16-17
1000
u
3V8
SYNCHRONISATION
*
0V9
2V1
1 2 3 4 5 6 7
*A2-16
TDA95XX
4V
1V3
*
**
A7-17
*
7V9
0V
1V2
3V9
1V2
3V9
2V9
*
2247
S2
10K
3246
1u0
2242
3254
1M0
S3
3251
100R
2243
2n2
30
31
34
9
22K
3241
S4
15p
2255
4254
220n
2245
27K
3242
3259
470K
33K
3248
3257
10M
1n5
2241
2244
100n
7200-D11
12
13
14
15
1617
2021
S5
S1
2249
22n
3258
100K
39K
3245
2254
2u2
2250
220K
3247
EHTinfo
Hflybk
SANDCASTLE
-
32L01.1A AC 7.Circuit Diagrams and PWB Layouts
CL 36532039_017.eps010503
1/10 PAGESBOSD
A7-11
A
B
C
D
E
F
G
0217 F20240 A3
9
A12-10
9
A11-13
A12-8
A7-13
0250 A20261 D20273 A40274 A80279 C30304 G20316 D30317 D10318 F11660 E71661 C72601 A6
A10-HA4-13
2602 D82604 E22606 E82607 D72608 A52609 E72611 B52612 C82613 B82615 A62616 A42618 B52619 D83601 B33603 A83604 A83605 C23606 B73607 B7
A2-9
A11-14
A7-14A4-14
A13-92
3608 D93609 D33610 C33611 A73613 E23614 F23615 F23617 D23618 D23619 C33622 D73623 D33624 B73625 B73626 C73627 C93628 D73629 C93630 D83632 D83633 D83634 C73635 B23636 B23639 D33640 B34601 A74602 A74603 A74604 G2
A10-I
A8-13
4618 G25602 A55603 A55604 A56601 E27200-B C47602 A77606 E89631 E29641 E29647 B29649 B2
A9-13
A9-14A8-14
A1-11
A9-8
36150318
4K7
STATUS1
+3.3V
POWER_DOWN
Treble_Buzzer_Hosp-app
+3.9V
SDA
IR
SCL
+3.3V
EW_protection
+3.3V
+3.9V
KEYBOARD_protn
+3.3V
2x5W-LA2x1W-NASNDAMP-SNDAMP-P-
ST-
MN-
4K76K8---
4K76K8---
For AP/NA/LA
-87
MP-
C1
500mV / div DC1ms / div
C4
10V / div DC100µs / div
C3
200mV / div DC1ms / div
C2
500mV / div DC1ms / div
C5
10V / div DC100µs / div
MEMORYBL
COR
H
V
TELETEXT
DISPLAY
4618
TO 0305OF
G
0217
FOR PIP
1 2 3 4 5 6 7 8
F
A7-13
0235OF
OF
A8-6
A6-17
*
TO
FOR CVI
TO
*0266
A7-14
OF
FOR ITV ONLY
TO
*
*3614
4K7
1
2
3
0217
10K
4604
4
5
6
0304
7 4
+8V
SCL
SDA
+3.3V
SANDCASTLE 260436183623
---6K8
TDA9570
For NA/LA/AP
ITEM SNDAMP-1x1W-MN-GL
SNDAMP-2x1W-ST-
EU/AP
JUMPER2K2
EU/AP
4K7
---
SNDAMP-2x3W-ST-
NDBX-NA/LA
SNDAMP-2x5W-ST+WOOFER-
IND
260436183623
---6K8
4K7
---10K
2x5W-ST-AP
NA/LA
SNDAMP-2x10W-ST-
AP
SNDAMP-2x3W-ST-
NA
SNDAMP-2x5W-ST-IND-MKII
SNDAM2x5W-
LA
6K84K7
NA
SNDAMP-
SNDAMP-
TDA9587 TDA9599
1x4W-AP
6K84K7
TDA9565TDA9570
NA LA
6K84K7
NTSC PAL/NTSC
TDA9586
AP
4K7
---
470R
SNDAMP-2x3W-ST-2x1W-NA
SNDAMP-2x3W-LASNDAMP-ITEM
ITEM 7200(UOC)
TDA9587TDA9588TDA9577
TDA9580TDA9583
PAL/NTSC/SECAM
--6K
10uF6K84K7
---6K84K7
---6K84K7
---JMP---
---
4K
1x3W-
55K Non-55K*
2606
SNDA
36223630
1n 470n
---JMP
470R
SNDAMP-2x5W-ST-
---6K84K7
---10K4K7
---6K84K7
---
Mono Carrier: Control
SDA
I/O
PORTS
VST PWM-DAC
ENHANCED
80C51
CPU
ROM/RAM
TELETEXTACQUISITION
R
G
CVBS
SYNC
IIC-BUS
TRANSCEIVER
SCL
FOR INDIA
FOR ITV ONLY
ONLY
*
3V2
A5-3
FOR INDIA ONLY
FOR ITV ONLY
1 2 3 4 5 6 7 8
DATA-IN
A13-2
A7-11
CLOCK
3V3
SDM
0V
0V
Bass_panorama
A1-5
DATA-OUT
A
B
C
D
E
*
3V3
3V7
RES
*
RES
3V7