Philips MCD988 Service Manual
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DVD Micro theatre

TABLE OF CONTENTS

Service Aids ...................................................................................1-1
CD Playability Check .............................................................1-2...1-4
Technical specification ...................................................................2-1
Service tools .................................................................................2-1
Service measurement setup ..........................................................2-2
Disassembly diagram.............................................................3-1...3-2
Software version check and upgrading .........................................4-1
Block diagram ................................................................................5-1
Wiring diagram .............................................................................6-1
VFD Board
circuit diagram ..........................................................................7-1
layout diagram ..........................................................................7-2
AMP Board (in subwoofer box)
circuit diagram ..........................................................................8-1
layout diagram .................................................................8-2...8-3
©
Copyright 2007 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 0821 Service Audio
Version 1.2
Subject to modification
CPU & Tuner Board
circuit diagram. .........................................................................9-1
layout diagram ..................................................................9-2...9-3
Power Board (in subwoofer box)
circuit diagram. .............................................................10-1...10-2
layout diagram ........................................................................10-3
DVD MPEG Board
circuit diagram. ............................................................. 11-1...11-3
layout diagram ........................................................................ 11-4
Exploded view diagram ...............................................................12-1
Mechanical partslist .....................................................................12-2
Electrical partslist...............................................................13-1...13-3
Packing exploded view (-/93).............................................14-1...14-2
MCD988
all versions
3141 785 31962

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Summary of Contents for Philips MCD988

  • Page 1: Table Of Contents

    ..............8-2...8-3 © Copyright 2007 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: Service Aids

    SERVICE AIDS Compact Disc: Service Tools: SBC426/426A Test disc 5 + 5A ......4822 397 30096 Universal Torx driver holder .........4822 395 91019 SBC442 Audio Burn-in test disc 1kHz ....4822 397 30155 Torx bit T10 150mm ...........4822 395 50456 SBC429 Audio Signals disc .........4822 397 30184 Torx driver set T6-T20 .........4822 395 50145 Dolby Pro-logic Test Disc ........4822 395 10216 Torx driver T10 extended ........4822 395 50423...
  • Page 3: Cd Playability Check

    CD PLAYABILITY CHECK Customer complaint "CD related problem" Set remains closed! check playability playability ok ? For flap loaders (= access to CD drive possible) "fast" lens cleaning cleaning method is recommended check playability Standard repair procedure playability ok ? clean the lens check playability Play a CD...
  • Page 4 CD PLAYABILITY CHECK PLAYABILITY CHECK LIQUID LENS CLEANING Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. For sets which are compatible with CD-RW discs This to avoid that little particles make scratches on use CD-RW Printed Audio Disc ....7104 099 96611 the lens.
  • Page 5 CD PLAYABILITY CHECK EYE-PATTERN SIGNAL – JITTER MEASUREMENT CD DRIVE – LASER CURRENT MEASUREMENT Measure the signal on the input of the Signal processor The laser current can be measured as a voltage drop on a using an analog oscilloscope. Please find the exact resistor.
  • Page 6: Specifications

    2 - 1 Specifications TECHNICAL SPECIFICATIONS SYSTEM SPEAKER Total output power ........400W RMS Impedance ................ 4 Power supply ......220 – 240 V / 50 Hz Output power ............75W Rated working power consumption (1/8 rated Sensitivity .............. 80 ± 4dB output power) ............
  • Page 7: Service Measurement Setup

    2 - 2 SERVICE MEASUREMENT Tuner FW Bandpass LF Voltmeter 250Hz-15kHz e.g. PM2534 e.g. 7122 707 48001 RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Tuner AM (MW,LW) Bandpass LF Voltmeter...
  • Page 8: Disassembly Diagram

    Disassembly diagram A Remove Bottom Cover C Remove DVD Decoder and CPU board Assy A1. Remove Screws M3×12(12PCS) C1. Remove Screws M3×8(6PCS) Remove Fan-out Screws M3×8(4PCS) D Cut Plastic Wires (3PCS)
  • Page 9 E Remove Motor G Remove CD Mechanism E1 Remove Screws M3×6(6PCS) G1 Remove Screws M2.6×10(8PCS) F Remove PCB Plank H Remove Main Panel F1 Remove Screws M3×6(2PCS) H1 Remove Screws M3×6(14PCS)...
  • Page 10 I Remove VFD Board Assy K Remove USB board I1 Remove Screws M2.6×8(10PCS) K1 Remove Screws M3×10(2PCS) L Remove Decorate Lamp J Remove Slide Plank and Slide Spring L1 Remove Screws M2×8(1PCS)...
  • Page 11 M Remove DVD door N Remove Gating Plate N1 Remove Screws M2.6×8(2PCS)...
  • Page 12: Software Version Check And Upgrading

    4 - 1 4 - 1 SOFTWARE VERSION CHECK AND UPGRADING...
  • Page 13: Block Diagram

    5 - 1 5 - 1 SET BLOCK DIAGRAM...
  • Page 14: Wiring Diagram

    6 - 1 6 - 1 SET WIRING DIAGRAM...
  • Page 15: Circuit Diagram

    7 - 1 7 - 1 CIRCUIT DIAGRAM - VFD BOARD MCD988VFD VFD1 REMOTE 47uf/16v5x7 LED15 LED11 104P LED9 LED6 SURROUND LED7 LED10 LED12 LED13 LED14 STEREO 4148 TACT(CH-) SOTP VOL- TACT(CH+) PLAY SOURCE VOL+ 4148 4148 4148 SW5 STADBY D7 4148 8050 100UF/16V5x7...
  • Page 16: Layout Diagram

    7 - 2 7 - 2 LAYOUT DIAGRAM - VFD BOARD...
  • Page 17: Circuit Diagram

    8 - 1 8 - 1 CIRCUIT DIAGRAM - AMP BOARD CLOCK CLOCK R271 R233 5.6K C210 C287 C2034 R223 R269 R205 C279 224/100V 5.6K C212 DZ201 C288 47uf/16v C2005 C248 C2035 5.6V C214 C245 Q208 Vddp2 Vssp2 BC847B C2002 C250 C204 R237...
  • Page 18: Layout Diagram

    8 - 2 8- 2 LAYOUT DIAGRAM - AMP BOARD...
  • Page 19: Layout Diagram

    8 - 3 8 - 3 LAYOUT DIAGRAM - AMP BOARD...
  • Page 20 9 - 1 9 - 1 CIRCUIT DIAGRAM - CPU & TUENR BOARD CN907 CN906 CN902 CN903 6P/2.0 2P/2.0 TUNE1 8P/2.0 11P/2.0 KST-F404 CF901 2P/2.0 10.7M R944 R945 CN908 IF-OUT JACK902 CF902 DVD-IR R948 CF904 IF-02P C951 10.7M FM FRONTEND 10.7M C952 D911...
  • Page 21: Layout Diagram

    9 - 2 9 - 2 LAYOUT DIAGRAM - CPU &TUENR BOARD...
  • Page 22: Layout Diagram

    9 - 3 9 - 3 LAYOUT DIAGRAM - CPU &TUENR BOARD...
  • Page 23 10 - 1 10 - 1 CIRCUIT DIAGRAM - POWER BOARD PART 1...
  • Page 24 10 - 2 10 - 2 CIRCUIT DIAGRAM - POWER BOARD PART 2...
  • Page 25 10 - 3 10 - 3 LAYOUT DIAGRAM - POWER BOARD...
  • Page 26 11 - 1 11 - 1 CIRCUIT DIAGRAM - DVD MPEG BOARD MPEG is not repaired,diagram for referrence only. +5VV R102 CB55 3.3K 0.1uF CE37 V_G/Y 2N3904 R103 1.8uH/SMD 22uF/16V +12V 160 1% R105 16:9 R104 2.2K R106 CB56 47pF 47pF 75 1% R107...
  • Page 27 11 - 2 11 - 2 CIRCUIT DIAGRAM - DVD MPEG BOARD MPEG is not repaired,diagram for referrence only. SDRAM (Dual Layout) DQ[0..15] DQ[0..15] MA[0..11] MA[0..11] DQM[0..1] DQM[0..1] BA[0..1] BA[0..1] DCLK DCLK RAS# RAS# SD33 CAS# CAS# SDCKE DCS# DRAM I/F MA10 DQ10 A10/AP...
  • Page 28 11 -3 11 - 3 CIRCUIT DIAGRAM - DVD MPEG BOARD MPEG is not repaired,diagram for referrence only. 89L_3V3 89L_3V3 47uH/DIP ADACVDD 150uH/DIP APLLVDD3 RFV18-1 CB12 0.1uF 89L_3V3 RFVDD3 DQ[0..15] DQ[0..15] DACVDD3 DACVDD3 RFV18-2 CB13 0.1uF CB14 MA[0..11] MA[0..11] CB15 CB16 CB17 CE12...
  • Page 29 11 - 4 11- 4 LAYOUT DIAGRAM - DVD MPEG BOARD MPEG is not repaired,diagram for referrence only.
  • Page 30: Exploded View Diagram

    12 - 1 12 - 1 EXPLODED VIEW DIAGRAM DVDDISC 22-30 MOTO1 MOTO3...
  • Page 31 (not for -/93) 6548...
  • Page 32: Electrical Partslist

    IC PT2309-S(L) IC904 996510000007 IC TEA5762 IC905 996510002918 IC PCF8563 SOP8 IC906 996510006171 IC AT24C128 (SOP8) IC907 996510006152 MCU PARTS ASSY MCD988/12 IC908 994000004955 IC AC6811(RDS) /12 IC909 996510006170 IC PT2579-S(SOL16) JACK902 996510006172 FM OUTPUT SOCKET IF-02P 75 JACK903 996510006173...
  • Page 33 SPECIAL SWITCH TC-V030A SW1102 996510002972 SPECIAL SWITCH TC-V030A DVDDISC 996510004184 DVD DISC ASS'Y 996510006174 HEADPHONE PCB ASSY MCD988 MAINLAMP 996510006175 MAIN LAMP PCB ASSY MCD988 MOTO1 996510006176 MOTOR ASSY(L) MCD988 MOTO2 996510006177 MOTOR PCB ASSY(L) MCD988 MOTO3 996510006178 MOTOR ASSY(R)MCD988...
  • Page 34 13 - 3 ELECTRICAL PARTSLIST(PCBA IN SUB.BOX) - AMP BOARD - IC201 996510002941 IC TL072 SOP IC203 996510000464 CHIP IC TDA8920(PACKING) IC204 996510000464 CHIP IC TDA8920(PACKING) IC206 996510000267 IC HEF4013T CHIP IC207 996510000463 CHIP IC 74HCU04D JACK201 996510015793 S-VIDEO SOCKET DSW-1 XT202 996510000265 CERMIC FILTER CRB 600KHz...
  • Page 35: Packing Exploded View (-/93)

    14-1 14-1 PACKING EXPLODED VIEW...
  • Page 36 INSTRUCTION MANUAL 996510017425 WARRANTY CARD(PH 996510007956) 996510017426 ELIGIBILITY CERT.(V93 35X46) 996510017427 WARRANTY CARD ENGLISH/CHINESE 996510017428 SERVICEWEBSITE(PH314107521791) 996510017429 MCD988 PAPER SHEET 996510017430 PLASTIC BAG(PE) 29X18cm 996510017431 PLASTIC BAG(PE)27X10cm PHILIPS 996510017430 PLASTIC BAG(PE) 29X18cm 996510017432 SPEAKER BOX HANG MATAL PLATE 996510017433 MAIN SET HANG MATAL PLATE...

Table of Contents