Published by WS 0871 BU TV Consumer Care Printed in the Netherlands Subject to modification EN 3122 785 16213
©
Copyright 2008 Koninklijke Philips Electronics N.V.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Colour Television Chassis
LC4.31E
AA
Contents Page Contents Page
1. Technical Specifications, Connections, and Chassis
Overview 2
2. Safety Instructions, Warnings, and Notes 5
3. Directions for Use 6
4. Mechanical Instructions 7
5. Service Modes, Error Codes, and Fault Finding 12
6. Block Diagrams, Test Point Overviews, and
Waveforms
Wiring Diagram 26" & 32" 21
Wiring Diagram 37" 22
Wiring Diagram 42" 23
Block Diagram Supply 37" 24
Block Diagram Supply 42" 25
Block Diagram Video 26
Block Diagram Audio 27
Test Point Overview Small Signal Board 28
I2C Overview 29
Supply Voltage Overview 30
7. Circuit Diagrams and PWB Layouts Diagram PWB
LCD Supply (37"): Mains Filter & Standby (A1) 31 33-38
LCD Supply (37"): Supply (A2) 32 33-38
LCD Supply (42"): Mains Filter + Stdby A (A1) 39 43-48
LCD Supply (42"): Supply A (A2) 40 43-48
LCD Supply (42"): Mains Filter + Stdby B (A3) 41 43-48
LCD Supply (42"): Supply B (A4) 42 43-48
SSB .2: Tuner and IF (B1 .. B20) 49 72-81
SSB .2: Diversity Tables B1-B6 55
SSB .2: Diversity Tables B9-B20 71
SSB .3: Tuner and IF (B01 .. 20) 82 105-114
SSB .3: Diversity Tables B01-B06 88
SSB .3: Diversity Tables B09-B20 104
Class D Audio Amplifier (26" & 32") (C) 115 116
Side I/O Panel (26" & 32") (D) 117 118
Side I/O Panel (37" & 42") (D) 119 120
Keyboard Control Board (26" & 32") (E) 121 121
Keyboard Control Board (37" & 42") (E) 122 122
Front IR / LED Panel (26" & 32") (ME5P) (J) 123 123
IR-LED and Light Sensor Panel (26"& 32") (J) 124 124
Front IR / LED Panel (37" & 42") (J) 125 126
Standby & Audio Panel: Connections (SA1) 127 130-132
Standby & Audio Panel: Standby (SA2) 128 130-132
Standby & Audio Panel: Audio (SA3) 129 130-132
OTC Flash (For 1000pg TXT) (T) 133 134
8. Alignments 135
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 140
Abbreviation List 141
IC Data Sheets 144
10. Spare Parts List & CTN Overview 148
11. Revision List 149
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