A-9555
BLOCK DIAGRAM
A-9555
REM IN
POWER
+5.6V
5V
12V
RELAY
+12V
AC IN
FUSE
PHONO
CD
TUNER
LINE
HDD
NJW1157
VL DIGITAL
MICROPROCESSOR
BACK UP
RI
PHONES
INTERFACE
RI
HEAD PHONE AMP.
+/-15V
LOUDNESS
TONE
TONE
+/-15V
+/-7V
POWER AMP.
52
51
65
64
63
62
61
60
59
58
57
56
55
54
53
48
46
42
44
30
28
29
21
26
24
22
25
23
43
41
74
73
73
71
70
69
68
67
66
27
45
47
94
86
8
1
2
3
4
5
6
7
80
81
82
87
83
84
85
88
89
90
95
91
92
93
+
+
+
ST
LOUDNESS
PURE DIRECT
VO
L
HDD
PHONO
CD
TUNER
TA
P
E
MD
A
A
PHONO
EQUALIZER AMP.
LOUDNESS
MUTING
SPEAKER
DETECTION
SPEAKER
DETECTION
RELAY
LPF
RELAY
PURE
DIRECT
INPUT SELECTOR
MUTE
MUTE
REMOTE SENSOR
MAIN TRANS
.
SUB TRANS.
POWER AMP.
RED
ORANGE
DRIVER AMP.
MODULATOR
MICROPROCESSOR
BROWN
BLUE
PHONO AMP.
SELECTOR
ANALOG
VOLUME
GREEN
SPEAKERS A
L
R
SPEAKERS B
L
R
TAPE
IN
OUT
MD
IN
OUT
A
1
2
3
4
5
B
C
D
E
F
G
H
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QQ 376315150
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9
9
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4
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Q
Q
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