PHILIPS L9.1
Manual de Servicio

Colour Television

Chassis

L9.1A
AA 00.02

5
In the 21PT3942 and the two new 21� sets, 21PT3956 & 21PT3962, the mono-carrier PCB-layout L9.1A is introduced to increase the audio power. Entering the SDM has changed. By connecting pin 20 to ground at cold start. Entering the SAM has changed. Shorting pin M28 and M29 is no longer valid. For the 21PT3942 one new panel is added: � Side AV panel & Headphone (E1) For the 21PT3956 & 21PT3962 two new panels are added: � Side AV panel & Headphone (E1) � Top Control RF (T) For reference see Service Manual L9.2A - 4822 727 21704. In the new 34� sets, 34PT4873 & 34PT4822, two new panels are introduced: � Side AV panel & Headphone (E1) � Top Control FSQ (T1) For reference see Service Manual L9.1A - 4822 727 21705.

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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. Published by RB 0069 Service PaCE Printed in the Netherlands Subject to modification 5 3122 785 40240