Micro System |
MCM205/12 |
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TABLE OF CONTENTS |
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Page |
Location of PCBs.................................................................. |
1-2 |
Specifications ....................................................................... |
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 |
Set Mechanical Exploded View & Parts List............................ |
7 |
Revision List ............................................................................ |
8 |
© 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 0914 Service Audio |
Printed in The Netherlands |
Subject to modification |
CLASS 1
LASER PRODUCT
© 3141 785 33912
Version 1.2
1-2
PCBS LOCATION
DISPLAY & KEY BOARD |
TUNER BOARD |
MAIN BOARD
MCU BOARD
USB BOARD
HEADPHONE BOARD
VERSION VARIATIONS
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Type /Versions: |
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MCM205 |
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Board in used: |
Service policy |
/12 |
/05 |
/37 |
/55 |
/58 |
/61 |
/98 |
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MAIN BOARD |
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C |
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MCU BOARD |
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C/M |
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USB JACK BOARD |
C |
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DISPLAY & KEY BOARD |
C |
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TUNER BOARD |
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M |
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HEADPHONE BOARD |
C |
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* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
x -- Used
Specifications
Amplifier
Rated Output Power |
2X5W RMS |
Frequency Response |
60 - 16kHz, ±3dB |
Signal to Noise Ratio |
>62dB |
Disc
Laser Type |
Semiconductor |
Disc Diameter |
12cm/8cm |
Support Disc |
CD-DA, CD-R, |
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CD-RW, MP3-CD, |
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WMA-CD |
Audio DAC |
24Bits / 44.1kHz |
Total Harmonic |
<1% |
Distortion |
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Frequency Response |
60Hz -16kHz |
S/N Ratio |
>62dBA |
Tuner
Tuning Range |
FM: 87.5 - 108MHz; |
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MW: 531 - 1602kHz |
Tuning grid |
50 kHz (FM); 9 kHz |
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(MW) |
Total Harmonic |
<3% |
Distortion |
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Signal to Noise |
>50 dB |
Ratio |
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1-3
Speakers
Speaker Impedance 4ohm
General information-Specs
Switching mode power |
Model: GFP181T- |
supply |
1512-1 or |
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GFP181DA-1512-1, |
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Input: AC100- |
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240V~, 50/60Hz, |
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0.35A Output: |
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DC15V, 1.2A |
Operation Power |
26 W |
Consumption |
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Standby Power |
<4 W |
Consumption |
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Eco Standby Power |
<1 W |
Consumption |
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Dimensions |
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- Main Unit |
152 x232 x 222mm |
(W x H x D) |
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- Speaker Box |
146 x 232 x 140mm |
(W x H x D) |
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Weight |
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- With Packing |
5.20 kg |
- Main Unit |
1.64 kg |
- Speaker Box |
2.20 kg |
Supported MP3 disc formats
•ISO9660, Joliet
•Maximum title number: 512 (depending on file name length)
•Maximum album number: 255
•Supported sampling frequencies: 32 kHz, 44.1kHz, 48 kHz
•Supported Bit-rates: 32~256 (kbps), variable bit rates
1-4
MEASUREMENT SETUP
Tuner FM
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Bandpass |
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DUT |
250Hz-15kHz |
LF Voltmeter |
RF Generator |
e.g. 7122 707 48001 |
e.g. PM2534 |
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e.g. PM5326 |
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Ri=50 |
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S/N and distortion meter |
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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)
RF Generator
e.g. PM5326
Ri=50
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Bandpass |
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DUT |
250Hz-15kHz |
LF Voltmeter |
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e.g. 7122 707 48001 |
e.g. PM2534 |
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S/N and distortion meter e.g. Sound Technology ST1700B
Frame aerial e.g. 7122 707 89001
To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage. Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).
CD
Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3)
DUT
L
R
S/N and distortion meter e.g. Sound Technology ST1700B
LEVEL METER
e.g. Sennheiser UPM550 with FF-filter
SERVICE AIDS
GB WARNING
All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically.
When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential.
GB
Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used
Safety components are marked by the symbol ! .
Lead free
1-5
ESD
CLASS 1
LASER PRODUCT
1 - 6
INSTRUCTIONS ON CD PLAYABILITY
Customer complaint
"CD related problem"
Set remains closed!
check playability
playability |
N |
ok ? |
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Y |
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"fast" lens cleaning
check playability
playability |
N |
ok ? |
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Y |
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Play a CD
for at least 10 minutes
check playability
playability |
N |
ok ? |
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Y |
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For flap loaders (= access to CD drive possible) cleaning method is recommended
add Info for customer |
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Exchange CDM |
"SET OK" |
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return set
-For description - see following pages
1 - 7
INSTRUCTIONS ON CD PLAYABILITY
PLAYABILITY CHECK |
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For sets which are compatible with CD-RW discs |
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use CD-RW Printed Audio Disc.................... |
7104 099 96611 |
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TR 3 |
(Fingerprint) |
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TR 8 |
(600µ Black dot) maximum at 01:00 |
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• playback of these two tracks without audible disturbance playing time for: Fingerprint 
10seconds
Black dot from 00:50 to 01:10
• jump forward/backward (search) within a reasonable time
For all other sets |
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use CD-DA SBC 444A.................................. |
4822 397 30245 |
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TR 14 |
(600µ Black dot) maximum at 01:15 |
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TR 19 |
(Fingerprint) |
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TR 10 |
(1000µ wedge) |
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•playback of all these tracks without audible disturbance playing time for: 1000µ wedge 
10seconds
Fingerprint 
10seconds Black dot from 01:05 to 01:25
• jump forward/backward (search) within a reasonable time
CUSTOMER INFORMATION
It is proposed to add an addendum sheet to the set which informs the customer that the set has been checked carefully - but no fault was found.
The problem was obviously caused by a scratched, dirty or copy-protected CD. In case problems remain, the customer is requested to contact the workshop directly.
The lens cleaning (method ) should be mentioned in the addendum sheet.
The final wording in national language as well as the printing is under responsibility of the Regional Service Organizations.
LIQUID LENS CLEANING
Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. This to avoid that little particles make scratches on the lens.
Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent
The actuator is a very precise mechanical component and may not be damaged in order to guarantee its full function. Clean the lens gently (don’t press too hard) with a soft and clean cotton bud moistened with the special lens cleaner.
The direction of cleaning must be in the way as indicated in the picture below.
2-1 |
2-1 |
SERVICE TEST PROGRAM
How to read software version,
1. Plug A/C to power on and under NO DISC status, press and hold PLAY and DBB buttons for 5 seconds, LCD Display shows existing CD software version "CD - V029" and MCU software version “MCU - 013”.
3-1 |
3-1 |
SET BLOCK & WIRING DIAGRAM
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