Service
Service
Contents Page
1. Technical Specifications, Connections and Chassis Overview 2 - 3
2. Safety & Maintenance Instructions, Warnings and Notes 4 - 5
3. Directions for Use 6 - 32
4. Mechanical Instructions 33
5. Faultfinding 34 -40
6. Block Diagram, I2C
Overview Block Diagram 41
2
I C 42-43
7. Electrical Diagrams and Test Point with waveform diagram
Power Supply (Diagram A1) 44
Line Deflection (Diagram A2) 44
Frame Deflection (Diagram A3) 45
Tuner IF (Diagram A4) 45
MCU,Video IF and Sound IF (Diagram A5) 46
BTSC (Stereo/SAP) Decoder(Diagram A6) 47
Video Source Switching (Diagram A7) 47
Side AV (Diagram A8) 48
Audio Amplifier (Diagram A9) 48
CRT Panel (Diagram B) 49
Transistor Test Voltage 49
Test point with Waveform Diagram 50 - 51
8. PCB diagram
Main PCB 52
CRT PCB 53
MPX PCB 54
SIDE AV PCB 55
9. Alignment Procedures 56 - 64
10. Circuit Description 65
11. List of Abbreviations 66 - 68
12. Spare Parts List 69 - 89
©Copyright 2001 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.All
rights reserved. No part of this publication may be reproduced, stored in aretrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.
Colour Television Chassis: M123A
1
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