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Roland G-70 - Circuit Diagram (Audio 3;4)

Roland G-70
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G-70
83
CIRCUIT DIAGRAM (AUDIO 3/4)
MOR
MOL
PHOR
PHOL
XMUTE
XMUTE
XMUTE
XMUTE
A
A
A
+15V
A
A
A
-15V
A
A
A
A
A
A
A
A
A
XMUTE
MOR
MOL
To Phones Board
PHO1R
PHO1L
R137
100k
R137
100k
C136
0.1
C136
0.1
L25
EXCML20A390U
L25
EXCML20A390U
R173
100k
R173
100k
1
1
2
2
3
3
4
4
5
5
6
6
CN7
53014-0610
CN7
53014-0610
R147
3k3
R147
3k3
2
3
1
+
-
IC12A
M5218AFP
+
-
IC12A
M5218AFP
1
2 3
Q16
2SC3326A
Q16
2SC3326A
R175
NIU
R175
NIU
R176
NIU
R176
NIU
R143
47(1/2W)
R143
47(1/2W)
R139
3k3
R139
3k3
R136 1kR136 1k
R138 3k3R138 3k3
1
2 3
Q14
2SC3326A
Q14
2SC3326A
1
2 3
Q13
2SC3326A
Q13
2SC3326A
R140
27k
R140
27k
C127 100pC127 100p
C126
1000p
C126
1000p
R134
47(1/2W)
R134
47(1/2W)
L24
EXCML20A390U
L24
EXCML20A390U
R141
10k
R141
10k
84
+
-
IC12C
M5218AFP
+
-
IC12C
M5218AFP
R144 1kR144 1k
R142
47(1/2W)
R142
47(1/2W)
6
5
7
+
-
IC12B
M5218AFP
+
-
IC12B
M5218AFP
R145
100k
R145
100k
21
C152
100u/25
C152
100u/25
L22
EXCML20A390U
L22
EXCML20A390U
C128
1000p
C128
1000p
2 1
C134
33u/25
C134
33u/25
R135
47(1/2W)
R135
47(1/2W)
L23
EXCML20A390U
L23
EXCML20A390U
2 1
C138
33u/25
C138
33u/25
R132
27k
R132
27k
TP
TP8
TP
TP8
C125 100pC125 100p
R146 3k3R146 3k3
C132
0.1
C132
0.1
1
2 3
Q15
2SC3326A
Q15
2SC3326A
R133
10k
R133
10k
21
C153
100u/25
C153
100u/25
R174
100k
R174
100k

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