Philips AZ7381 Service Manual

Portable compact disc player

TABLE OF CONTENTS

Technical specification ......................................................1-1
Connections and controls ..................................................1-2
Feature overview ...............................................................1-3
Accessories .......................................................................1-3
Safety warnings .................................................................1-4
Service hints
Repair positions ............................................................2-1
Service tools..................................................................2-1
Training material ...........................................................2-1
ESD protection equipment ............................................2-1
Handling chip components............................................2-2
Service test program .................................................3-1...3-2
Blockdiagram .....................................................................3-3
Start-up procedure.............................................................3-4
Pinning of ICs ............................................................3-5...3-9
©
Copyright 1997 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 permission of Philips.
Published by PW 9802 Service Audio Printed in The Netherlands Subject to modification
Circuit diagrams
Supply/Servodriver part.................................................4-1
Signal processing part...................................................4-2
Membrane assembly 4822 360 10363..........................4-3
Control part ...................................................................4-4
Audio part ......................................................................4-5
Printed circuit board layout stage.3
Copperside view............................................................4-6
Componentside view .....................................................4-7
Printed circuit board layout stage.5
Copperside view............................................................4-8
Componentside view .....................................................4-9
Exploded view ...........................................................5-1...5-2
Mechanical partslist ...........................................................6-1
Electrical partslist ......................................................6-1...6-4
AZ7381
AZ7382
AZ7383
AZ7481
AZ7482
AZ7483
all versions
MABEL PLATFORM 3A/4A
CLASS 1
LASER PRODUCT
© 4822 725 26016
CS 46 455