1
Service Manual
Published by LV 9864 TV Service Department
Printed in The Netherlands
Subject to modification
5
4822 727 21566
©Copyright reserved 1998 Philips Consumer Electronics B.V. Eindhoven, The
Netherlands. 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, electron-
ic, mechanical, photocopying, or otherwise without the prior permision of Philips.
Colour Television
Chassis
L7.3A
AA
CL 86532010_001.ai
160298
Content
1
Technical specifications
2
2
Connection facilities, location of panels
3
3
Safety instructions, Warnings
4
and Notes
4
Mechanical instructions
6
5
Repair facilities
7
Software adjustments and Hotel mode
12
6
Block diagram,
13
Survey of testpoints
14
Diagram supply voltages survey
7
Electrical Diagrams and print lay-outs
Diagram PWB
Main PWB layout
16
Power supply
diagram A1
17
16
Main PWB layout
18
Line drive
diagram A2
19
18
Sync-frame & vertical drive
diagram A3
20
18
Video Processing
diagram A4
21
18
Control
diagram A5
22
18
Sound processing
diagram A6
23
18
Sound amplifier
diagram A7
24
18
BTSC decoding
diagram A8
25
18
CRT PWB/ Audio sound PWB
26
CRT module
diagram B
27
26
Nicam sound panel
diagram C
28
26
8
Electrical adjustments
29
9
Circuit Descriptions new circuits
31
10 Directions for use (limited)
38
11 List of abbreviations
46
12 Spareparts list
47
Published by LV 9864 TV Service Department
Printed in The Netherlands
Copyright reserved 1998 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. 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 permision of Philips.
Subject to modification
5
4822 727 21566