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Philips MCM305/12 Service Manual
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Micro System
©
Copyright 2009 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 SL 0920 Service Audio
Version 1.1
TABLE OF CONTENTS
Location of PCBs.................................................................. 1-2
Speci cations ....................................................................... 1-3
Measurement Setup ............................................................. 1-4
Service Aids, Safety Instruction, etc ..................................... 1-5
CD Playability Check ..................................................1-6 to 1-7
Software Version Checking ..................................................... 2
Set Wiring & Block Diagram .................................................... 3
Main & Tuner & Headphone Boards........................................ 4
MCU & USB Board .................................................................. 5
Display & Key Board ............................................................... 6
Rectifier Board..........................................................................7
Set Mechanical Exploded View & Parts List............................ 8
Revision List ............................................................................ 9
Printed in The Netherlands
Subject to modi cation
MCM305
Page
CLASS 1
LASER PRODUCT
© 3141 785 34141
/12

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Summary of Contents for Philips MCM305/12

  • Page 1 LASER PRODUCT © Copyright 2009 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: Pcbs Location

    PCBS LOCATION TUNER BOARD MCU BOARD MAIN BOARD DISPLAY & KEY BOARD RECTIFIER BOARD USB BOARD AUX/HP BOARD VERSION VARIATIONS Type /Versions: MCM305 Service policy Board in used: MAIN BOARD MCU BOARD USB JACK BOARD DISPLAY & KEY BOARD TUNER BOARD HEADPHONE BOARD RECTIFIER BOARD * TIPS : C -- Component Lever Repair.
  • Page 3 2 - 1 2 - 1 SOFTWARE VERSION CHECKING 1) MCU version : at CD mode and No CD, press and hold "PLAY" & "DBB" buttons more than 5 seconds at the same time, the display will show the version of MCU, e.g. “CD-042 MCU-017”. 2) While displaying MCU software version, to turn VOLUME knob can show full display pattern for Key Founction Test,...
  • Page 4 MCU & USB BOARD TABLE OF CONTENTS MCU Board Layout Top View .......... 5-2 MCU Board Layout Bottom View ........5-3 USB Jack Board Layout Diagram ........5-4 Circuit Diagram ..............5-5...
  • Page 5 PCB LAYOUT - MCU BOARD (TOP VIEW)
  • Page 6 PCB LAYOUT - MCU BOARD (BOTTOM VIEW)
  • Page 7 LAYOUT DIAGRAM - USB BOARD...
  • Page 8 CIRCUIT DIAGRAM - MCU & USB BOARD...
  • Page 9: Display/Key Board

    DISPLAY/KEY BOARD TABLE OF CONTENTS Layout Top View ............... 6-2 Layout Bottom View ............6-3 Circuit Diagram ..............6-4...
  • Page 10 PCB LAYOUT - DISPLAY/KEY BOARD (TOP VIEW)
  • Page 11 PCB LAYOUT - DISPLAY/KEY BOARD (BOTTOM VIEW)
  • Page 12 CIRCUIT DIAGRAM - DISPLAY/KEY BOARD...
  • Page 13 PCB LAYOUT - RECTIFIER PCB...
  • Page 14 CIRCUIT DIAGRAM - RECTIFIER PCB...
  • Page 15 MECHANICAL EXPLODED VIEW...
  • Page 16 8 - 2 8 - 2 MECHANICAL & ACCESSORIES PARTS LIST ELECTRICAL PARTS LIST Loc. 12NC 12NC Description Description Loc. 12NC 12NC Description Description 996510011340 DIODE 1N5819 DO-41 996510021657 VOLUME KNOB D102 996510011332 DIODE 1N4148 996510010774 DIODE 1N4148 FDLL4148 996510025775 CD DOOR 996510011332 DIODE 1N4148...
  • Page 17 8 - 3 8 - 3 ELECTRICAL PARTS LIST Loc. 12NC Description DISPLAY/KEY PCB ASSY R743 996510021674 CARBON RES. 100R 1/6W J% R808 996510021669 CARBON RES. 47R 1/6W J% RS701 996510011311 INFRARED RECEIVER RIGHT ANGLE SW701 SW701 996500039269 996500039269 TACT SWITCH TACT SWITCH SW702 996500039269...
  • Page 18: Revision List

    9 - 1 REVISION LIST 1.0 Manual 3141 785 34140 Initial Service Manual released. 1.1 Manual 3141 785 34141 In this version, 1) Chapter 7 Rectifier Board added for reference as per request.