Expanium EXP431 Service Manual

Portable CD-player with MP3-playback

TABLE OF CONTENTS

Technical specification ......................................................1-1
Connections and controls ..................................................1-2
Firmware upgrade .............................................................1-2
Features ............................................................................1-3
Accessories .......................................................................1-3
Safety & Warnings.............................................................1-4
Service hints
Repair positions ............................................................2-1
Dismantling CD-door .....................................................2-1
Handling chip components............................................2-2
ESD protection equipment ............................................2-2
Pin description of ICs.........................................................3-1
Start-up procedure.............................................................3-6
Service Test Program ........................................................3-7
Blockdiagram .....................................................................3-8
©
Copyright 2002 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 0238 Service Audio
Version 1.0
Printed in The Netherlands Subject to modification
PRODUCT FAMILY EXPANIUM 8cm
Circuit diagrams
Supply part ....................................................................4-1
Control part ...................................................................4-2
CD part ..........................................................................4-3
DSP part........................................................................4-4
Audio part ......................................................................4-5
Printed circuit board
Componentside view .....................................................4-6
Copperside view............................................................4-7
Exploded view ...................................................................5-1
Mechanical partslist ...........................................................5-1
Electrical partslist...............................................................6-1
Document history...............................................................7-1
EXP431
all versions
CLASS 1
LASER PRODUCT
© 3103 785 25190