Philips MCM190 User manual

Version 1.0
MCM190, MCM195
©3141 785 30200
Micro System
all versions
Published by LX 0650 Service Audio Printed in The Netherlands Subject to modification
© Copyright 2005 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.
Handling chip components............................................................ 1-1
Leadfree and safety information ................................................... 1-2
Technical specification .................................................................. 2-1
Service test program ..................................................................... 2-1
Service measurement setup ......................................................... 2-2
Connections and controls ..................................................... 3-1...3-2
Disassembly diagram............................................................ 4-1...4-2
Set block diagram ......................................................................... 5-1
Set wiring diagram ........................................................................ 5-2
Display and key board
circuit diagram.......................................................................... 6-1
layout diagram.......................................................................... 6-2
Main and AC power board
circuit diagram.................................................................. 7-1...7-2
layout diagram (component side)............................................. 7-3
layout diagram (copper side) ................................................... 7-4
Cassette board
circuit diagram.......................................................................... 8-1
layout diagram.......................................................................... 8-2
tape deck adjustment ............................................................... 8-2
Exploded view (main set).............................................................. 9-1
Mechanical partslist....................................................................... 9-2
Electrical partslist .............................................................. 10-1...10-2
TABLE OF CONTENTS

1 - 1
HANDLING CHIP COMPONENTS

1 - 2

2 - 1
SERVICE TEST PROGRAM

2 - 2
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

3 - 1
CONNECTION AND CONTROLS

3 - 2
CONNECTION AND CONTROLS
For more information onoperation instruction please visit Philips Audio internet site : http://www.audio.philips.com

xx4 - 1
A1
STEP A : Remove Back Cabinet
- A1 : Remove 2 screws (SP3x12)
- A2 : Remove 4 screws (SP3x10)
- A3 : Remove 2 screws (K3x10)
- A4 : Remove 2 screws (K3x10)
STEP B :
Remove CD Tray and Mains board
- B1: Remove 4 screws (SP3x12)
A3
A2
A2
A4
B1
B1
DISASSEMBLY DIADRAMS

xx
4 - 2
DISASSEMBLY DIADRAMS
STEP C :
Remove Main PCB Assy
- Remove 3 screws (SP3x8)
STEP D :
Remove LCD PCB from Front Cabinet
- E1 : Remove 10 screws (SP2.6x8)
STEP E :
Remove Tape Deck
- H : Remove 4 screws (SP3x8)
C1
E1
E1

xx
5 - 1
SET BLOCK DIADRAM

5 - 2 5 - 2
SET WIRING DIAGRAM

6 - 16 - 1
CIRCUIT DIAGRAM - DISPLAY AND KEY BOARD

6 - 2 6 - 2
LAYOUT DIAGRAM - DISPLAY AND KEY BOARD
COMPONENT SIDE COPPER SIDE

7 - 17 - 1
CIRCUIT DIAGRAM - MAIN BOARD (1)

7 - 27 - 2
CIRCUIT DIAGRAM - MAIN BOARD (2)

7 - 3
7 - 3
LAYOUT DIAGRAM - MAIN AND POWER PCB (TOP VIEW)

7 - 4 7 - 4
LAYOUT DIAGRAM - MAIN AND POWER PCB (BOTTOM VIEW)

8 - 1 8 - 1
R IN
L IN
GND
R OUT
L OUT
+ TAPE
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


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
!!
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DECK
M
+ MOTOR
GND
+1
LEFT
MOTOR
ELECTROLYTIC CAPACITOR
MYLAR CAPACITOR
PLATE CERAMIC CAPACITOR
ALL TUBULAR CERAMIC CAPACITORS UNLESS OTHERWISE STATED.
ALL CARBON RESISTORS E12 SERIES
G = 50V
f = 25V
0.33W ‘5% UNLESS OTHERWISE STATED.
O
123456 987 101112131415 181716
PLAY RECORD
1707
RECORD
PLAY ---V
5V 5V1
0V
0V
1V5
1V7
2V6
4V2
1V5
0V 0V
2V6
0V
REC INFO
(REC=L)
OPT
OPT
OPT
OPT = OPTIONAL / Used for some Versions
d = 10V
E = 16V
OPT
1725
FE
1
2
3
4
5
6

N 
N

N

N

N

N

N

N

N

N

N

N

N

N
 N

N

N

N
 N

P

P
74
1
2
3
2710
OD
100u
2703
22u
O'
2704
22u
O'
2706
OF
47u
2707
OD
220u
2708
OF
47u
2709
OF
47u
2711
22u
O'
2799
O%
470u
2760
OF
47u
T708
T707
T710
T722
T725
T712
T709
T706
T711
T723
T724
T718
T717
T701
T721
T702
T705
T719
T716



8704
8704
8705
8705
k01
3734
73
1
2
71
1
2
3762
6k5
3761
6k5
3747
150R
3701
100R
3703
R051
3704
220
3706
330k
3707
470k
3710
k72
3712
12k
3713
R051
3714
220
3716
330k 3719
k72
3720
12k
3722
k
22
3723
k22
3726
2k2
3727
2
k2
3730
R0
5
1
3731
K6
5
3732
R5
1
3733
7
M4
3743
R0
7
4
3744
R
0
74
3748
R074
3749
R0
7
4
5701
b
a
d
c
8702 4
8702 3
8702 2
8702 1
1702
1
2
3
4

.
7705
12
8
9
11
5
10
13
14
AN7323
NF2
IN2
RF
Vcc
REF1
ALC2
REF2
OP2
7705
3
2
1
7
6
4
AN7323
NF1
IN1
GND
ALC-TC
ALC1
OP1
---V
3V4
V78 0V3

$%#+
1707 R
14
P
13
15
1707 R
17
P
16
18
1707 R
5
P
4
6
1707 R
2
P
1
3
1707
R
8
P
7
9
12
10
11
1707
R
P
7702
BC337-25
1709
1
2
3
4
5
6
CIRCUIT DIAGRAM - CASSETTE BOARD

8 - 28 - 2
LAYOUT DIAGRAM - CASSETTE BOARD
ECO- MTF- SD
R- 1
98- 12- 15
98- 12- 15
3140 113 31231
ECO- MTF- SD
A
RP
3140 113 31231
9758
98- 12- 15
C
2730
7702
9754
9755
9762
2703
2710
2711
2731
2732
2733 3732
3747
5701
2734
2760
3742
71
74
3720 3721 3735
9757
1707
9751
2727
9756
9701
9702
9703
9705
9707
3733
3744
3761
3762
6704
7705
3712
3713
3716
3719
3730
3731
2723
2726
2750
2751
3706
3707
3711
2713
2715
2716
2720
2721
2722
2700
2707
2708
2709
2712
3726
3727
3743
6715
7703 7704
9760
2704
2706
2719
2735
3701
3710
2738 3734 72
9706
9752
9753
9759
9761
3740
3748
3749
3750
7701
3703
3704
3714
3722
3723
3736
3737
3738
27012714
2728
2729
2739
2740
1702
1709
1721 1722
1725 1701
3724
3728
3739
73
RSH
+M
R
W
2717
2718
-M
YSH
1 234 5
1 234 5
D
C
B
A
D
C
B
A
71 A 1
72 D 5
73 A 5
74 A 1
1701 A 5
1702 B 5
1707 D 3
1709 C 5
1721 B 5
1722 B 5
1725 C 5
2700 B 4
2701 B 5
2703 C 2
2704 A 3
2706 A 3
2707 B 2
2708 B 4
2709 C 3
2710 B 1
2711 B 2
2712 D 1
2713 B 3
2714 B 4
2715 B 3
2716 B 3
2717 C 3
2718 B 3
2719 A 3
2720 C 3
2721 C 4
2722 C 2
2723 C 2
2726 C 2
2727 D 2
2728 C 5
2729 C 5
2730 D 1
2731 C 1
2732 B 1
2733 C 1
2734 A 1
2735 A 1
2738 D 4
2739 C 4
2740 C 4
2750 B 3
2751 C 2
2760 A 2
3701 A 2
3703 B 4
3704 B 4
3706 B 3
3707 B 2
3710 A 3
3711 C 3
3712 D 1
3713 C 3
3714 C 4
3716 C 3
3719 C 2
3720 D 2
3721 D 3
3722 D 5
3723 C 5
3724 A 5
3726 A 3
3727 A 3
3728 A 4
3730 B 1
3731 B 1
3732 B 1
3733 B 2
3734 D 5
3735 D 3
3736 B 5
3737 C 5
3738 C 5
3739 A 5
3740 B 4
3742 B 1
3743 A 2
3744 B 2
3747 B 1
3748 D 4
3749 C 5
3750 D 4
3761 C 2
3762 B 3
5701 C 1
6704 B 2
6715 A 2
7701 B 4
7702 B 1
7703 A 4
7704 A 4
7705 B 3
9701 D 2
9702 D 3
9703 D 3
9705 C 4
9706 D 5
9707 C 2
9751 D 3
9752 D 5
9753 D 5
9754 C 1
9755 D 1
9756 C 3
9757 D 3
9759 D 4
9760 A 2
9761 B 5
9762 D 1
T701 C 5
T702 C 5
T705 B 5
T706 B 5
T709 A 5
T710 C 1
T711 B 5
T712 C 2
T713 A 5
T714 D 5
T715 D 5
T716 D 1
T719 B 1
T720 A 5
T721 C 5
T722 C 2
T725 D 2
T7707 A 4
T7708 A 4
CASSETTE ADJUSTMENT
Adjustment Cassette SK .... Deck 1 Measure Read Adjust Adjust
on on with to
Left hand
Azimuth 10 kHz
SBC420*
SBC420*
Tape Play H/P Jack mV meter Screw max.
R/P head
3150 kHz Wow and
Tape Play H/P Jack flutter Preset
in motor **a
meter **a The maximum permissible speed deviation is ± 3%.
* SBC420 : 4822 397 30071
Morever, the wow and flutter value can be read.
Motor
Speed

9 - 1 9 - 1
EXPLODED VIEW DIAGRAM
record
play
reverse
forward
stop/open
pause
34
35
36
37
38
39
40
41
42
43
44
45
46
47
49 50 52
51
53
48
21
20
19
13-18
12
11
10
9
8
1
2
3
4
5
6
7
22
23
24
25
26
27
28
29
32
31
30
33