Philips MCM190 Service Manual page 18

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