PHILIPS L73AAA CHASSIS
Circuit Diagrams

1

Colour Television

Chassis

L7.3A
AA

CL 86532010_001.ai 160298

ServiceManual
Content
1 2 3 4 5 6 Technical specifications Connection facilities, location of panels Safety instructions, Warnings and Notes Mechanical instructions Repair facilities Software adjustments and Hotel mode Block diagram, Survey of testpoints Diagram supply voltages survey Electrical Diagrams and print lay-outs 2 3 4 6 7 12 13 14 7 Main PWB layout Power supply Main PWB layout Line drive Sync-frame & vertical drive Video Processing Control Sound processing Sound amplifier BTSC decoding CRT PWB/ Audio sound PWB CRT module Nicam sound panel 8 Electrical adjustments 9 Circuit Descriptions new circuits 10 Directions for use (limited) 11 List of abbreviations 12 Spareparts list
5 Subject in The Netherlands of Philips. without theby LV permisionService Department Copyright prior 9864 Printed to modificationTV Published 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 727 21566 4822 otherwise

diagram A1 diagram A2 diagram A3 diagram A4 diagram A5 diagram A6 diagram A7 diagram A8 diagram B diagram C

Diagram PWB 16 17 16 18 19 18 20 18 21 18 22 18 23 18 24 18 25 18 26 27 26 28 26 29 31 38 46 47

©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. Published by LV 9864 TV Service Department Printed in The Netherlands Subject to modification 5 4822 727 21566