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Philips EXP521 Service Manual
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Philips EXP521 Service Manual

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Portable compact disc player

TABLE OF CONTENTS

Technical specification ......................................................1-1
Features ............................................................................1-1
Accessories .......................................................................1-1
Instruction For Use .....................................................1-2..1-6
Safety & Warnings.............................................................1-7
Repair positions ............................................................2-1
Dismantling CD-door .....................................................2-1
Handling chip components............................................2-2
Service tools..................................................................2-2
Pin descriptions of ICs................................................3-1..3-7
Service Test Program ........................................................3-8
Blockdiagram .....................................................................3-9
©
Copyright 2001 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 LX 0330 Service Audio
Printed in The Netherlands
Subject to modification
Circuit diagrams
Control/ESP part............................................................4-1
Audio part......................................................................4-2
CD Drive part .................................................................4-3
Power Supply part .........................................................4-4
Layout diagrams
Copper side view ...........................................................4-5
Component side view ....................................................4-6
Exploded view ...................................................................5-1
Mechanical partslist ...........................................................5-1
Electrical partslist .......................................................6-1..6-3
EXP521
all versions
CLASS 1
LASER PRODUCT
© 3140 785 32610

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Summary of Contents for Philips EXP521

  • Page 1: Table Of Contents

    LASER PRODUCT © Copyright 2001 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.

  • Page 2: Technical Specification

    0.3V ± 100mV Difference btw.level 1 and battey empty 0.6V ± 100mV Difference btw.level 2 and battey empty ● 0.9V ± 100mV Difference btw.level 3 and battey empty ● Current consumption ACCESSORIES EXP521 -TARGET /05Z 220mA 220mA 220mA 220mA 250mA 250mA 250mA...

  • Page 3: Instruction For Use

    INSTRUCTION FOR USE TROUBLESHOOTING WARNING: Under no circumstances should you try to repair the set yourself as this will invalidate the warranty. If a fault occurs, first check the points listed, before taking the set for repair. If you are unable to solve a problem by following these hints, consult your dealer or service center.
  • Page 4 • alkaline batteries type AAA (LR03, UM4) or AA (LR6, UM3) 2 9... . stops playback and switches the set off preferably Philips). 3 2;...
  • Page 5 INSTRUCTION FOR USE REMOTE CONTROL AY3778 MP3 MUSIC FILES (supplied or optionally available) The music compression technology MP3 (MPEG Audio Layer 3) reduces Use the AY3778 cord remote control. The the digital data of an audio CD significantly while maintaining CD-like buttons on the remote control have the sound quality.
  • Page 6 INSTRUCTION FOR USE PLAYING A DISC SELECTING AND SEARCHING ON CD With this set you can play Selecting a track during playback or § once or several § – all pre-recorded audio CDs • Briefly press – all finalized audio CDRs and CDRWs times to skip to the current, previous or next track.
  • Page 7 INSTRUTION FOR USE PROGRAMMING TRACK NUMBERS ESP/ POWER SAVE MODE You can store up to 50 tracks to play in a With a conventional portable CD-player you program. A single track may be stored more might have experienced that the music than once in the program.

  • Page 8: Safety & Warnings

    1 - 7 SAFETY & WARNINGS © ñ WARNING WAARSCHUWING All ICs and many other semiconductors are susceptible to Alle IC´s en vele andere halfgeleiders zijn gevoelig voor electrostatic discharges (ESD). Careless handling during electrostatische ontladingen (ESD). repair can reduce life drastically. Onzorgvuldig behandelen tijdens reparatie kan de levensduur When repairing, make sure that you are connected with the drastisch doen vermindern.

  • Page 9: Service Hints

    2 -1 SERVICE HINTS REPAIR POSITION COMPONENTSIDE REPAIR POSITION COPPERSIDE To get access to the componentside of the To get access to the copperside of the printed board assembly proceed as followed: printed board assembly proceed as follows: 1.Remove the bottom (3x) screws (2x of them under the 1.Remove the bottom (3x) screws (2x of them under the rubber-foot) and the up (2x) screws (in the CD-door) rubber-foot) and the up (2x) screws (in the CD-door)

  • Page 10: Handling Chip Components

    2 - 2 HANDLING CHIP COMPONENTS SERVICE TOOLS 4822 397 30184 Audio signal disc SBC429 4822 397 30245 Playability test disc SBC444 Test disc 5 (disc without errors ) + Test disc 5A(disc with dropout errors black spots and fingerprints) SBC426/ SBC426A 4822 397 30096 ESD PROTECTION EQUIPMENT Anti-static table mat large 1200x650x1.25mm...
  • Page 11 3 - 1 BLOCK DIAGRAM OF IC SAA7824HL EXTFILTER D4 R1 R2 MONITOR SENSE LPOWER DC OFFSET COMPENSATION LASER LASER MONITOR POWER CON- LASER TROL LOGIC VOLTAGE BUFFER ANTI ALIAS HF & LF CAPTURE BIAS D1-D4 DSIC ADC OUTPUT GENERATOR REF_OUT STAGES CONTROL...

  • Page 12: Pin Descriptions Of Ics

    3 - 2 PIN DESCRIPTIONS OF IC SAA7824HL...
  • Page 13 3 - 3 PIN DESCRIPTIONS OF IC SAA7752...
  • Page 14 3 - 4 PIN DESCRIPTIONS OF IC SAA7752...
  • Page 15 3 - 5 PIN DESCRIPTIONS OF IC SAA7752...
  • Page 16 3 - 6 PIN DESCRIPTIONS OF IC SAA7752 L FB GA P IN S TA TE AP P L . S YMBOL DIG IT AL I/O L EV EL AFTER DES CR I P TION FUNC P IN R E S E T Not connected Not connected Not connected...
  • Page 17 3 - 7 PIN DESCRIPTIONS OF IC SC111259A Pin# Symbol Pin Description SLEEP Sleep input WAKE Wake input Reference Voltage Input(Motor driver) ERR4 Control signal input(CH4) Phase correction capacitor connect (CH4) Phase correction capacitor connect (CH3) ERR3 Control signal input(CH3) ERR2 Control signal input(CH2) Phase correction capacitor connect (CH2)

  • Page 18: Service Test Program

    3 - 8 3 - 8 SERVICE TEST PROGRAM - FLOW CHART STOP button pressed not in any step returns To enter Service to begin of Service Testprogram. Testprogramm hold To leave Service Testprogram press STOP to PLAY & PREV buttons depressed while pressing switch off.

  • Page 19: Blockdiagram

    3 - 9 3 - 9 BLOCKDIAGRAM DC JACK Headphone...

  • Page 20: Control/Esp Part

    4 -1 4 -1 COMBI BOARD - CIRCUIT DIAGRAM CONTROL/ESP PART 1400 A17 3481 G15 1401 G17 4401 A11 1403 I17 4402 A11 1404 J7 5400 G3 1405 J8 5401 H14 1406 J9 5402 H14 1407 J4 6401 I16 1408 J7 6402 I16 1409 J5 7401 F15...

  • Page 21: Audio Part

    4 - 2 4 - 2 COMBI BOARD - CIRCUIT DIAGRAM AUDIO PART 1300 B10 2307 A5 2313 C9 2319 D6 2325 E8 2331 D7 3306 C4 3313 B2 3330 B2 3345 C6 3354 C8 3360 D5 3366 E8 5301 B9 6301 C7 7303-B A6 7309 E5...

  • Page 22: Cd Drive Part

    4 - 3 4 - 3 COMBI BOARD - CIRCUIT DIAGRAM CD DRIVE PART 1800 B1 2805 A9 2808 B8 2811 D3 2814 D4 2817 D5 2820 E6 2823 A8 2826 A8 3802 A9 3805 A8 3808 A5 3812 B3 3818 E9 3823 D1 3890 C3...

  • Page 23: Power Supply Part

    4 - 4 4 - 4 COMBI BOARD - CIRCUIT DIAGRAM POWER SUPPLY PART 1200 A3 3274 H2 F272 F6 1201 C2 3275 I3 F273 E4 1202 I5 3276 G9 F275 D9 2200 A2 3277 H12 F276 E9 6200 2201 B4 3278 I1 F277 A10 LD1117...

  • Page 24: Component Side View

    4 - 5 4 - 5 COMBI BOARD - LAYOUT DIAGRAM COMPONENT SIDE VIEW...
  • Page 25 4 - 6 4 - 6 COMBI BOARD - LAYOUT DIAGRAM COPPER SIDE VIEW...

  • Page 26: Exploded View

    MECHANICAL PARTSLIST 401 3140 117 66021 CD-DOOR-ASSY-EXP521 402 3140 117 67451 KEY-GAMES-ASSY-EXP521 403 3140 117 67461 KEY-SHOOT-ASSY-EXP521 404 3140 110 51821 LCD MODULE - EXP521 406 3140 117 66991 SLIDER-DOOR-OPEN-AX5215 407 3140 111 22611 SPRING-SLIDER-OPEN-AX5203 408 3140 117 66941 CABINET-AX5215-ASSY-1...

  • Page 27: Electrical Partslist

    6 - 1 6 - 1 ELECTRICAL PARTSLIST - COMBI BOARD ELECTRICAL PARTSLIST - COMBI BOARD - MISCELLANEOUS - - CAPACITORS - - CAPACITORS - - CAPACITORS - 1200 2422 086 11012 FUSE 0,7A 50V 2241 4822 126 14043 1µF +80-20% Y5V 16V 2410 2238 586 59812 100nF +80-20% Y5V 50V 2807...
  • Page 28 6 - 2 6 - 2 ELECTRICAL PARTSLIST - COMBI BOARD ELECTRICAL PARTSLIST - COMBI BOARD - RESISTORS - - RESISTORS - - RESISTORS - - RESISTORS - 3230 4822 117 13632 100K 1% 0,62W 3280 4822 117 12891 220K 1% 3357 4822 051 30472 4,7K 5% 0,062W 3436...
  • Page 29 6 - 3 6 - 3 ELECTRICAL PARTSLIST - COMBI BOARD ELECTRICAL PARTSLIST - COMBI BOARD - IC & TRANSISTORS - - RESISTORS - - DIODES - 3813 4822 051 30008 0R JUMPER 6201 9322 185 88685 DIO EC SM SL03 7227 3198 010 42310 BC847BW 3813...

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