Philips EXP212 Service Manual

Portable cd-player with mp3-playback
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Portable CD-player with MP3-playback

TABLE OF CONTENTS

Technical specification ......................................................1-1
Connections and controls ..................................................1-2
Features ............................................................................1-3
Accessories .......................................................................1-3
Safety & Warnings .............................................................1-4
Repair positions ............................................................2-1
Dismantling CD-door .....................................................2-1
Handling chip components............................................2-2
Service tools..................................................................2-2
Pin description of ICs ................................................3-1...3-5
Start-up procedure ....................................................3-6...3-7
Service Test Program..............................................3-8...3-10
Blockdiagram ...................................................................3-11
©
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 0230 Service Audio
Version 1.2
Printed in The Netherlands
Subject to modification
PRODUCT FAMILY ULTRA - MASSIVE
Circuit diagrams
Supply part ....................................................................4-1
Control part ...................................................................4-2
DSP part........................................................................4-3
CD 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...6-4
Document History ..............................................................7-1
EXP212
EXP301
EXP303
EXP313
EXP501
EXP503
all versions
CLASS 1
© 3103 785 25130

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Table of Contents
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Summary of Contents for Philips EXP212

  • Page 1: Table Of Contents

    LASER PRODUCT © 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.
  • Page 2: Technical Specification

    TECHNICAL SPECIFICATION Current consumption MP3-playback General Dimensions (WxHxD) : 128x28x139.5mm Weight without batteries : 212g Power supply modes g i l DC-in socket : 2.9-6.5V Primary batteries (2xLR6) : 1.7-3.6V 4 µ . l c Rechargable batteries (AY3362) : 1.7-3.6V Shock resistance Battery lifetime : ≥2.5g...
  • Page 3: Connections And Controls

    CONNECTIONS AND CONTROLS EXP212, EXP30x EXP313, EXP50x • R • R E • E • L IN L IN O PE N O P E N & & 1 OPEN 2 ..opens the CD lid 1 OPEN 2 ..opens the CD lid 2 VOL E..adjusts the volume...
  • Page 4: Features

    FEATURES “ ” – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – ACCESSORIES “...
  • Page 5: Safety & Warnings

    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 6: Service Hints

    SERVICE HINTS REPAIR POSITION COPPERSIDE REPAIR POSITION COMPONENTSIDE To get access to the copperside of the To get access to the componentside of the printed board assembly proceed as follows: printed board assembly proceed as follows: 1. Remove the bottom screws (6x) 1.
  • Page 7: Handling Chip Components

    HANDLING CHIP COMPONENTS SERVICE TOOLS Audio signal disc SBC429 4822 397 30184 Playability test disc SBC444 4822 397 30245 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 4822 466 10953...
  • Page 8 PIN DESCRIPTION OF INTEGRATED CIRCUITS TZA1024 – HF-PREAMPLIFIER AND LASER SUPPLY CIRCUIT Name Direction Description ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– HF-preamp → CD-drive current output to laser diode VCCL +2.6V laser supply voltage → HF-preamp CFIL external filter capacitor CD-drive → HF-preamp laser monitor diode input CD-drive →...
  • Page 9 SAA7324 – DECODER, DIGITAL SERVO IC AND D/A-CONVERTER CD10 (low voltage version) Name Direction Description ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– → CD10 HFREF comparator common mode input → CD10 HFIN comparator signal input CD10 → ISLICE current feedback from data slicer VSSA1 analog ground 1 VDDA1 +2.6V analog supply voltage 1...
  • Page 10 SM5903BF – COMPRESSION-TYPE ANTI-SHOCK MEMORY CONTROLLER NPC Name Direction Description ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– +2.6V supply voltage NPC ↔ µP interface extension I/O line 1 NPC ↔ µP interface extension I/O line 2 NPC ↔ µP interface extension I/O line 3 NPC ↔ µP interface extension I/O line 4 NPC ↔...
  • Page 11 TMS320DA150PGE160 – DIGITAL SIGNAL PROCESSOR DSP Name Direction Description ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– CVSS1 ground for core CPU DSP ↔ parallel address bus CVSS2 ground for core CPU DVDD1 +3.3V power supply for I/O pins DSP ↔ parallel address bus CD10 → reference current output pin DSP ↔...
  • Page 12 CVSS7 ground for core CPU DSP ↔ BCLKX1 transmit clock DVSS4 ground for I/O pins DSP → BFSX1 frame synchronization pulse for transmit input/output DSP → BDX1 serial data transmit output DVDD4 +3.3V power supply for I/O pins DVSS5 ground for I/O pins →...
  • Page 13: Start-Up Procedure

    START-UP PROCEDURE – FLOW CHART Start-up procedure for ext.DC supply, POWER OFF no accu inserted, hold-switch in off pos., (stand-by) ESP on, resume-mode off, CD-door closed. focus found PLAY during ramping pressed ? cycle ? µP sends new focus parameters to CD10 (switch to higher focus sensitivity) µP calculates...
  • Page 14 START-UP PROCEDURE – FLOW CHART (continued) µP reads TOC of last valid session Mixed Mode or CD-Extra disc? µP sends commands to CD10: “CL4, CL16 on” “CDROM-MODE” µP switches disc motor control to single speed µP initializes DSP TMS_SUP_ON=H TMS_RESET=H DSP ready within ~5s ? µP sends to DSP:...
  • Page 15: Service Test Program

    SERVICE TEST PROGRAM 5. PLAYBACK TEST WITH ERROR ANALYSIS Purpose:Analyze errors that occur during CDDA playback and search for intermittent failures. • To enter the playback test start the service test program, 1. PRELIMINARY SETUP insert a CDDA disc, close the CD-door and press the •...
  • Page 16 • To move slide outside hold the “NEXT” button depressed. • To move slide inside hold the “PREV” button depressed. • To accelerate the discmotor clockwise hold the “MODE” button depressed. • To accelerate the discmotor counter-clockwise hold the “PROG” button depressed. •...
  • Page 17 3-10 3-10 SERVICE TEST PROGRAM – FLOW CHART To enter the service test program PRELIMINARY 1. Disconnect the AC/DC adaptor and remove batteries SETUP 2. Open the CD-door 3. Hold “PLAY” & “PREV” buttons depressed 4. Connect the AC/DC adaptor or insert batteries Display shows “PLAY”...
  • Page 18: Blockdiagram

    3-11 3-11 BLOCKDIAGRAM +2.6V EL-BACKLIGHT ONLY ACTIVE DURING +2.6V CDDA-PLAYBACK 7430 7881 MIP803 16Mbit BACKLIGHT_ON (FROM µP) EL-DRIVER DRAM servo in or +2.6V eye-pattern signal disc motor cw during focus search > 800 mVpp 2,5V A0...A10, D0...D3 not moving 7400 7880 CAS, RAS, WE, OE servo out or...
  • Page 19: Supply Part

    1250 I4 2253 B7 2261 D1 2269 E7 2277 G7 2287 A12 2295 E14 3206 D11 3214 G14 3223 I14 3231 C14 3239 D10 3250 B7 3258 C2 3267 D3 3275 F3 3283 H2 3291 D8 5250 A7 6254 F11 7254-B B13 7261-B D12 7264 C3...
  • Page 20: Control Part

    1401 F8 1406 A2 2404 E2 2430 I6 3404 F7 3409 E1 3415 D7 3420 H4 3425 B11 3433 H7 3438 D2 3443 C1 7401-B G12 7404 H3 F404 F7 F409 B1 F414 B6 F419 B5 F424 B7 F429 B5 F434 B4 F439 B3 F444 B3...
  • Page 21: Dsp Part

    2480 B9 2481 A4 2482 C13 2483 B1 2484 A7 DSP-PART 2485 F1 +1.5V 2486 G11 +3.3V 2487 G7 2488 H5 3480 2489 A4 7481 MT4LC1M16E5TG-6 +3.3V 2490 A4 3.2V 2491 A2 2490 +3.3V +core 2492 D1 DD15 DQ15 2493 D1 +core 2494 H4 DD14...
  • Page 22: Cd Part

    1830 C1 2804 C5 2834 E3 2840 E5 2846 B5 2852 A9 2858 F6 2881 H14 2887 C12 3801 C1 3807 C5 3832 C2 3838 D3 3844 D4 3850 C5 3856 A9 3868 F6 3882 G12 3888 G15 3894 B9 7403-A F3 7881 C12 F832 C1...
  • Page 23: Audio Part

    1300 D9 2304 C2 2309 D3 2314 D6 2319 C8 2324 D9 2329 A7 3303 D1 3308 C2 3313 D4 3318 C8 3323 D8 3328 A7 3336 A7 7300-B D2 7306 C8 F304 D5 F309 B1 2300 B1 2305 D2 2310 B6 2315 D6 2320 D8...
  • Page 24: Componentside View

    1250 G5 3896 E1 1251 C7 3899 E1 1252 A6 5250 B6 COMPONENTSIDE VIEW 1300 G2 5252 A6 1401 B7 5253 B7 1402 D1 5430 A5 1830 E2 6256 A5 EXT.DC 2250 B7 6430 A5 2251 C7 7263 A7 2256 B7 7267 A7 2286 A5 7305 H4...
  • Page 25: Copperside View

    1403 C4 2408 B4 3206 B1 3291 B2 3440 F5 3897 F5 1404 C4 2409 F6 3207 B1 3292 B2 3441 B4 3898 F6 1405 A5 2430 A2 3208 B6 3293 C2 3442 G6 5251 B2 COPPERSIDE VIEW 1406 A5 2431 A3 3209 B1 3294 C1...
  • Page 26: Exploded View

    3103 304 71540 MEMBRANE-KEYBOARD-M500 3103 308 13450 FRAME-EXP212-ASSY-1 3103 308 11800 FRAME-EXP30x-ASSY-1 3103 300 41610 SCREW-P-1.4x3-NI 3103 308 84550 LCD EXP212 3103 301 45830 SCREW-P-1.4x4-NI 3103 300 41580 SCREW-P-1.7x9-CR 3103 308 84320 LCD EXP30x 3103 304 71530 MEMBRANE-KEYBOARD-M300 3103 301 06640...
  • Page 27: Electrical Partslist

    MISCELLANEOUS 2298 © 4822 126 14305 100nF ––––––––––––––––––––––––––––––––––––––––––––––––––––– 2299 © 4822 126 14305 100nF 3103 308 84550 LCD EXP212 2300 © 4822 126 14241 330pF 3103 308 84320 LCD EXP30x 3103 308 84660 LCD EXP313 2301 © 4822 126 14241...
  • Page 28 CAPACITORS RESISTORS ––––––––––––––––––––––––––––––––––––––––––––––––––––– ––––––––––––––––––––––––––––––––––––––––––––––––––––– 2498 © 4822 126 14305 100nF 3215 © 4822 051 30105 1MΩ 0,06W 2499 © 4822 124 11946 22µF 3216 © 4822 117 12891 220kΩ 0,06W 2800 © 2020 552 96305 4,7µF 3217 © 4822 117 13632 100kΩ...
  • Page 29 RESISTORS RESISTORS ––––––––––––––––––––––––––––––––––––––––––––––––––––– ––––––––––––––––––––––––––––––––––––––––––––––––––––– 3288 © 4822 051 30109 10Ω 0,06W 3419 © 3198 021 32250 2,2MΩ 0,06W 3289 © 4822 051 30562 5,6kΩ 0,06W 3420 © 4822 117 12891 220kΩ 0,06W 3291 © 4822 117 13632 100kΩ 0,06W 3421 © 4822 051 30474 470kΩ...
  • Page 30 RESISTORS DIODES ––––––––––––––––––––––––––––––––––––––––––––––––––––– ––––––––––––––––––––––––––––––––––––––––––––––––––––– 3839 © 4822 051 30333 33kΩ 0,06W 6300 © 3198 020 51090 BZX384-C10 3840 © 4822 051 30333 33kΩ 0,06W 6430 © 9322 123 21685 1SS376 3841 © 4822 051 30103 10kΩ 0,06W 3842 © 4822 051 30103 10kΩ...
  • Page 31: Document History

    DOCUMENT HISTORY Version 1.0 • Initial release Version 1.1 • New type/version EXP212/17 has been added → Frontpage, Connections and Controls, Table of Features, Table of Accessories, Mechanical and Electrical Partslist adapted Version 1.2 • New type/version EXP313/17 has been added...

This manual is also suitable for:

Exp303Exp301Exp313Exp503Exp501

Table of Contents