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CC
CD
C31
4.7u35
+
IC3(1/2)
5
7
5.6V
6
5.6V
4
5.6V
R35
10K
+
+
Lch
0V
+
WH2
+
PLAY BACK
PLAY BACK
R27
LEVEL(Rch)
LEVEL(Lch)
47K
+
R8 220K
R7 220K
R13
430
C4
R4
R3
C3
IC1
0.01
13K
13K
0.01
PLAY BACK/
+
REC EQ
+
8.1V
8.1V
5.5V
R28
47K
5.6V
5.6V
5.6V
+
5.6V
5.7V
R80
22K
R77
R87
1K
10
+
+
+12V
12.3V
R/P SWITCH
Q11
PLAY: 12.3V
REC: 0V
Q12
PLAY: 6.0V
REC: 12.3V
PLAY: 0V
REC: 4.9V
BIAS AVR
L6
Q3
10uH
+12V
C75
12.3V
1
NOR-REC: 7.5V
Cr-REC: 11.2V
PLAY: 0V
D2
REC: 8.0V
+
PLAY: 8.6V
Q5
REC: 0V
Q4
Q6
Q5,6
BIAS
SWITCH
ON/OFF
PLAY: 0V
REC: 4.9V
(NOR
CRO2)
SWITCH
NOR: 4.9V
CrCO2: 0V
+5V
E
CE
CF
+12V
OPE
IC3
12.3V
AMP
(2/2)
8
C32
3
4.7u35
1
5.6V
2
+
5.6V
R36 10K
+
Rch
12
R11 1.5K
+
L3
C25
+
1
6
2.2u50
2
3
4
IC2
DOLBY
B
L4
C26
1
6
2.2u50
C10
R42
C24
2
4.7u35
6800P
3
4
+
+
R12 1.5K
R83
5
22K
+
+
+
B
REC IN R(CD:SE5=1.2V,SH7=840mV)
REC IN L(SD:SE5=1.2V,SH7=840MV)
+12V
+12V
+
+
Q18
Q17
MUTING
DRIVER
R109
4.7K
Q16
R110
MUTING
4.7K
+5.6V
CG
CH
5.0V
C103
10u16
5.0V
64
C129
+
100P
5.1V
63
R103
10K
0.2V
62
C101
1u50
5.0V
61
AUX L
+
C135
10u50
5.0V
60
+
5.0V
59
5.0V
58
R41
C35
1K
4.7u35
5.0V
57
+
C160
100u16
10.1V
56
Q13
+12V
VDD
+
C36
Q13,14
4.7u35
5.0V
55
MUTING
+
5.0V
54
D6
D5
54
1K
53
5.0V
53
C136
10u50
5.0V
52
52
+
Q14
C102
1u50
5.0V
51
MUTING
Q15
+
DRIVER
5.0V
50
R102
49
4.7K
5.1V
+12V
5.0V
5.0V
+
12.1V
30V
+12V
C163
C164
100u16
100i10
+
+
12
11
10
9
8
7
6
5
4
3
2
1
10
9
CN4
CN1
I
CI
CJ
50Hz
EX BASS
100Hz
1KHz
10KHz
+
+
4.9V
5.0V
4.8V
4.9V
4.8V
IC4
(BOTTOM VIEW)
ELECTRIC
VOL/SELECTOR
CCB BUS INTERFACE
/EX BASS/TONE
DECODER+LATCHES
/LOUDNESS
INPUT
ATT
+
+
50Hz
100Hz
1KHz
10KHz
EX BASS
+5.6V
RXD-M51MD (X09-6122-71)
DESTINATION
C37,
C113-
R13,
UNIT No.
A
B
38
116
14
COUNTRY
ABB.
U.K.
T
2-71
NO
YES
YES
NO
NO
EUROPE
E
RXD-M51 (X09-612X-XX)
DESTINATION
C37,
C113-
R13,
UNIT No.
A
B
38
116
14
COUNTRY
ABB.
GENERAL MARKET
M
0-21
NO
U.K.
T
NO
YES
NO
NO
2-72
YES
EUROPE
E
8
7
6
5
4
3
2
1
J
RXD-M51/M51MD
Y39-2980-51
CK
CL
+
MAIN VR
C123
17
5.1V
4.7u35
+
C131
100P
INPUT
C125
ATT
10u16
18
5.0V
+
C127
19
5.0V
10u16
+
20
5.1V
L VREF
21
5.1V
C161
22i16
22
5.1V
+
CLK
23
0V
R161 1K
23
DATA
24
0V
R162 1K
24
CE
25
0V
R163 1K
25
C162 470P
26
VSS
27
5.1V
R VREF
28
5.1V
C128
10u16
29
5.0V
+
C126
30
5.0V
10u16
+
C124
31
5.1V
4.7u35
+
C132
100P
C122
32
10u16
5.0V
+
MAIN VR
R21,
R109,
Q16-
X07-A/5
22
110
18
-CN1
10K
YES
YES
5/6
I
R21, R109,
Q16-
22
110
18
X07-A/5
NO
NO
-CN2
10K
YES
YES
5/6
J
RXD-M51(M,T,E) (4/6)
RXD-M51MD(T,E) (4/6)
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