Philips MCM167 Bedienungsanleitung
Version 1.0
MCM167
3141 785 33590
Micro Hi-Fi System
-/12
Published by LX 0910 Service Audio Subject to modification
© 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.
CONTENTS
�
Technical specification ..................................................................1-2
Version variation............................................................................1-2
Service measurement setup..........................................................1-3
Service aids .................................................................................1-4
Instructions on CD playability ...............................................2-1.. 2-2
Disassembly diagram............ ........................................................3-1
Block diagram................................................................................4-1
Wiring diagram ..............................................................................5-1
Main board
Circuit diagram ..................................................................6-1..6-3
Layout diagram..................................................................6-4..6-5
Display board
Circuit diagram .........................................................................7-1
Layout diagram..................................................................7-2..7-3
Cassette board
Circuit diagram .........................................................................8-1
Layout diagram.........................................................................8-2
Exploded view diagram .................................................................9-1
Mechanical parts list......................................................................9-2
Electrical parts list...............................................................10-1..10-2
Amplifier
Rated Output Power 2X5W RMS
Frequency Response 60 - 16kHz,±3dB
Signal to Noise Ratio >65dB
Aux Input 0.5V RMS 20kohm
Disc
Laser Type Semiconductor
Disc Diameter 12cm/8cm
SupportDisc CD-DA, CD-R, CD-RW,
MP3-CD, WMA-CD
Audio DAC 24Bits / 44.1kHz
Total Harmonic Distortion <1%
Frequency Response 60Hz -16kHz (44.1kHz)
S/N Ratio >65dBA
Tuner
TuningRange FM: 87.5-108MHz;
MW: 531 -1602kHz
Tuninggrid 50KHz
Sensitivity
-Mono, 26dB S/N Ratio
-Stereo,46dB S/N Ratio
<22 dBf
>43 dBf
SearchSelectivity >28dBf
TotalHarmonic Distortion <3%
Signalto Noise Ratio >55dB
Tape deck
Frequency response
-Normal tape(typeI) 125 -8000 Hz (8dB)
Signal-to-noiseratio
-Normal tape(typeI) 40 dBA
Wow and ?utter <0.4% JIS
Speakers
SpeakerImpedance 4ohm
SpeakerDriver 3.5”woofer+0.8”tweeter
Sensitivity >82dB/m/W
General information-Specs
AC power 220 -230V,50Hz
OperationPower Consumption 20W
StandbyPower Consumption <4W
Eco StandbyPower Consumption <2W
Dimensions
-Main Unit(W x H x D)
-SpeakerBox (W x H x D)
209 x231 x 147mm
146 x 228 x 160mm
Weight
-With Packing
-Main Unit
-SpeakerBox
6.6kg
1.95kg
2 x 1.2kg
TECHNICAL SPECIFICATION
1 - 2
Type /Versions:
Features
Board in used:
MCM167
Service policy
DISPLAY BOARD
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
√-- Used
/05 /12 /55 89/16/85/
Feature diffrence
RDS & DAB
VOLTAGE SELECTOR
ECO STANDBY - DARK √
Type /Versions:
/05 /12 /55 89/16/85/
VERSION VARIATION
39/
39/
C
MAIN BOARD
CASSETTE BOARD
C
MCM167
C
1-3
LF Generator
e.g. PM5110
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion met
e
e.g. Sound Technology ST170
L
R
DUT
or Universal Test Cassette Fe SBC420 4822 397 30071
LEVEL METER
e.g. Sennheiser UPM550
with FF
-
filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
CD
Use Audio Signal Disc
(replaces test disc 3)
SBC429 4822 397 30184
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 250Hz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50:
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
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50:
Tuner FM
MEASUREMENT SETUP
1-4
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.
ESD
CLASS 1
LASER PRODUCT
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
Set remains closed!
N
Y
Play a CD
for at least 10 minutes
Y
playability
ok ?
N
playability
ok ?
add Info for customer
"SET OK"
check playability
N
Y
playability
ok ?
check playability
check playability
return set
Customer complaint
"CD related problem"
"fast" lens cleaning
1
2
3For flap loaders (= access to CD drive possible)
cleaning method 4is recommended
INSTRUCTIONS ON CD PLAYABILITY
2 - 1
Exchange CDM
1-4For description - see following pages
1
PLAYABILITY CHECK
For sets which are compatible with CD-RW discs
use CD-RW Printed Audio Disc ....................7104 099 96611
TR 3 (Fingerprint)
TR 8 (600µ Black dot) maximum at 01:00
• 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
use CD-DA SBC 444A..................................4822 397 30245
TR 14 (600µ Black dot) maximum at 01:15
TR 19 (Fingerprint)
TR 10 (1000µ wedge)
• 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
2
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 3) 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.
4
LIQUID LENS CLEANING
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.
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.
INSTRUCTIONS ON CD PLAYABILITY
2 - 2
DISASSEMBLY DIAGRAM VIEW
3 - 1 3 - 1
DISPLAY PCB
MAIN PCB
CASS DECK PCB
SET BLOCK DIAGRAM
4 - 1 4 - 1
SET WIRING DIAGRAM
5 - 1 5 - 1
6-1 6-1
CIRCUIT DIAGRAM - MAIN BOARD
AF/AMP PART
Andere Handbücher für MCM167
2
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