Philips MCM-138-D Service Manual
Docking Entertainment System
�
MCM138D/
all
TABLE OF CONTENTS
Page
Handling chip components ..........................................1-1
Technical Specications ..............................................2-1
Service Tool ................................................................. 2-1
Measurement setup .....................................................2-2
Connections and Controls .................................... 3-1..3-2
Set Block diagram .......................................................4-1
Set Wiring diagram ...................................................... 4-2
Disassembly diagram .................................................. 5-1
Main board
Circuit diagram ..................................................6-1..6-2
Layout diagram ..................................................6-3..6-4
Display&Tuner board - Circuit diagram ................7-1..7-2
Display&Tuner board - Layout diagram ................7-3..7-4
Power board - Circuit diagram .....................................8-1
Power board - Layout diagram .................................... 8-2
Set Mechanical Exploded view ...................................9-1
Mechanical Service parts list ...............................
Electrical Service parts list..............................10-1 .. 10-5
R evision list
.............................................................
9-2..9-3
.. 11-1
©
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 LX 0950- Service Audio Printed in The Netherlands Subject to modication
Version 1.2
© 3141 785 31702
1 - 1
TECHNICAL SPECIFICATIONS
2 - 1
SERVICE MEASUREMENT
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
RF Generator
e.g. PM5326
S/N and distortion meter
e.g. Sound Technology ST1700B
Tuner FW
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50
½
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
S/N and distortion meter
e.g. Sound Technology ST1700B
Frame aerial
e.g. 7122 707 89001
Tuner AM (MW,LW)
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 250kHz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50
½
L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
DUT
CD RECORDER
Use Audio Signal Disc SBC429 4822 397 30184
(replaces test disc 3)
Use Universal Test Cassette Fe SBC420 4822 397 30071
L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
DUT
LF Generator
e.g. PM5110
Ri=50
½
2 - 2
CONNECTION AND CONTROLS
3 - 1
CONNECTION AND CONTROLS
3 - 2
SET BLOCK DIAGRAM
4 - 1
SET WIRING DIAGRAM
4 - 2
DISASSEMBLY DIAGRAM
Dismantling of the Bottom Cabinet
1) Remove 4 screws A as indicated to loosen the Rear Cabinet.
2)
Remove 2 screws B as indicated to loosen the Bottom Cabinet.
Dismantling of the Front Cabinet and Main Board
1) Remove 2 screws C as indicated to loosen the Front Cabinet.
2)
Remove 5 screws D as indicated to loosen the Main Board.
A
B
BOTTOM CAB.
C
E
5 - 1 5 - 1
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