Philips MCM305/12 User manual

MCM305/12
©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 Printed in The Netherlands Subject to modi¿cation
Micro System
Version 1.1
CLASS 1
LASER PRODUCT
©3141 785 34141
TABLE OF CONTENTS
Page
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

MCU BOARD
DISPLAY & KEY BOARD
TUNER BOARD
MAIN BOARD
AUX/HP BOARD
USB BOARD
CDM
RECTIFIER BOARD
VERSION VARIATIONS
Type /Versions:
Board in used:
MCM305
Service policy
MAIN BOARD
MCU BOARD
USB JACK BOARD
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
C/M
/12 /05 /55 89/
16/85/
DISPLAY & KEY BOARD
C
C
TUNER BOARD M
x
HEADPHONE BOARD C
/37
C/M
1-2
PCBS LOCATION
RECTIFIER BOARD M

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,
SOFTWARE VERSION CHECKING
2 - 1 2 - 1

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
5-1 5-1

5-2 5-2
PCB LAYOUT - MCU BOARD (TOP VIEW)

5-3 5-3
PCB LAYOUT - MCU BOARD (BOTTOM VIEW)

5-4 5-4
LAYOUT DIAGRAM - USB BOARD

5-5 5-5
CIRCUIT DIAGRAM - MCU & USB BOARD

DISPLAY/KEY BOARD
TABLE OF CONTENTS
Layout Top View ............................................................... 6-2
Layout Bottom View.......................................................... 6-3
Circuit Diagram................................................................. 6-4
6-1 6-1

6-2
PCB LAYOUT - DISPLAY/KEY BOARD (TOP VIEW)
6-2