Philips MCM98 User manual

MCM159/61/98
©Copyright 2008 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 0830 Service Audio Printed in The Netherlands Subject to modification
Micro System
Version 1.1
CLASS 1
LASER PRODUCT
©3141 785 32951
TABLE OF CONTENTS Page
Location of PCBs & Version Variations................................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 Block Diagram...................................................................3
Set Wiring Diagram .................................................................4
Main Board..............................................................................5
Front Board..............................................................................6
Cass Board..............................................................................7
Set Mechanical Exploded View & Parts List............................8
Electrical Parts List..................................................................9
Revision List..........................................................................10

PCBS LOCATION
FRONT BOARD
MAIN BOARD
CASS BOARD
1-2
/12 /61
niRDC/nixuA
Line Out
Video Out
Headphone Out
Digital Out
Karaoke Features
Voltage Selector
ECO Power Standby (LCD Display Off)
USB Direct
Type /Versions:
Features
in used: /05
VERSION VARIATIONS
Type /Versions:
Board in used:
MCM159
Service policy
MAIN BOARD
CASS BOARD
FRONT BOARD
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
C
/12 /05 8595//16/85/
Feature diffrence
C
x
C
x
MCM159
x

1-3
AMPLIFIER
Output power ........................................... 2 x 2W RMS
Signal-to-noise ratio .......................... t60 dBA (IEC)
Frequency response ....................... 125 – 16000 Hz
Impedance loudspeakers ........................................... 8:
CD PLAYER
Frequency range ............................... 125 – 16000 Hz
Signal-to-noise ratio ............................................ 65 dBA
TUNER
FM wave range ................................... 87.5 – 108 MHz
MW wave range ................................ 531 – 1602 kHz
Sensitivity
– FM 26 dB sensitivity .......................................... 20 µV
– MW 26 dB sensitivity ................................... 5 mV/m
Total harmonic distortion ..................................... d5%
TAPE DECK
Frequency response
Normal tape (type I) ...... 125 – 8000 Hz (8 dB)
Signal-to-noise ratio
Normal tape (type I) .................................... 40 dBA
Wow and flutter .............................................. d0.4% JIS
SPEAKERS
Bass reflex system
Dimensions (w x h x d) . 134 x 230 x 152 (mm)
GENERAL INFORMATION
AC Power ............................ 110 – 127 / 220 – 240 V
....................................................... 50/60 Hz, switchable
Dimensions (w x h x d) .. 148 x 233 x 216 (mm)
Weight (with/without speakers) ..................................
......................................................... approx. 3.65 / 1.53 kg
Power consumption
Active .......................................................................... 15 W
Standby .................................................................... < 4 W
Specifications and external appearance are
subject to change without notice.
SPECIFICATIONS

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 meter
e.g. Sound Technology ST1700B
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=50Ω
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=50Ω
Tuner FM
MEASUREMENT SETUP
1-4

1-5
Service Tools:
Universal Torx driver holder .................................4822 395 91019
Torx bit T10 150mm ...........................................4822 395 50456
Torx driver set T6-T20 .........................................4822 395 50145
Torx driver T10 extended .....................................4822 395 50423
Compact Disc:
SBC426/426A Test disc 5 + 5A ...........................4822 397 30096
SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155
SBC429 Audio Signals disc .................................4822 397 30184
Dolby Pro-logic Test Disc ....................................4822 395 10216
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!
Standard repair procedure
N
Y
Play a CD
for at least 10 minutes
Y
playability
ok ?
N
playability
ok ?
add Info for customer
"SET OK"
playability
ok ?
Y
N
check playability
N
Y
playability
ok ?
check playability
check playability
EYE-Pattern
ok ?
N
Y
check "EYE-Pattern"
replace CD Drive
Laser current
ok ?
N
Y
check Laser current
CD Drive offsets
ok ?
N
Y
check CD Drive offsets
clean the lens
check playability
return set
Customer complaint
"CD related problem"
return set
return set
replace CD Drive
return set
replace CD Drive
return set
replace Signal Processor
return set
"fast" lens cleaning
1
2
3
4
5
6
7
For flap loaders (= access to CD drive possible)
cleaning method 4is recommended
1- 7For description - see following pages
INSTRUCTIONS ON CD PLAYABILITY
1-6

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.
3
FAST LENS CLEANING (dry brush)
Use lens cleaning CD
SBC AC300...........................................9082 100 00043
Insert the lens cleaning CD, press PLAY and follow the
voice guide´s instructions on the CD.
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 B4-No2”, available with codenumber
4822 389 10026.
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
1-7

2-1 2-1
To hold DBB & SKIP
NEXT depressed
SOFTWARE VERSION CHECKING
Set on Standby.
Y
N
Y
N
Button pressed?
9
Button pressed?
DISPLAY
TEST
Display shows all patterns
SKIP NEXT
Display shows "NEW"
SOFTWARE
RESET
VER refers to Version
y.yy refers to Software version number of the uProcessor
(counting up from 01 to 99)
xx refers to date number of the production.
Display shows the
MCU software version
"VER y.yy MTP xx-xx-2007"

3-1 3-1
SET BLOCK DIAGRAM

FRONT
SET WIRING DIAGRAM
4-1 4-1

MAIN BOARD
TABLE OF CONTENTS
Layout Top View ..............................................................5-2
Layout Bottom View .........................................................5-3
Circuit Diagram (AF&Amp Part) .......................................5-4
Circuit Diagram (CD&MP3 Part).......................................5-5
Circuit Diagram (Tuner Part) ............................................5-6
5-1 5-1

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

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

5-4 5-4
CIRCUIT DIAGRAM - MAIN & POWER BOARD
AF & AMP PART

5-5 5-5
CIRCUIT DIAGRAM - MAIN BOARD
CD & MP3 PART

5-6 5-6
CIRCUIT DIAGRAM - MAIN BOARD
TUNER PART

FRONT 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 - FRONT BOARD (TOP VIEW)
6-2

6-3
PCB LAYOUT - FRONT BOARD (BOTTOM VIEW)
6-3

6-4
CIRCUIT DIAGRAM - FRONT BOARD
6-4