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

G-70
Feb.2005
85
84
XRES5V
ANMUTE
XMUTE
-12V +12V
5VD
D
AF
+15V
-15V
A
A A
A
A
A
A
+15V
A
-15V
ANMUTE
XRES5V
XMUTE
PanelRear
(CN2)
From Power Supply Board
L/MR
-Main-
LR
-Direct-
LR
-Harmonizer-
GAIN
OUT
-Metronome-
-Phantom-
MikeLine
RL
-Aux Input-
(CN1)
To Harmony Board
L29
EXCCL4532U1
NIU
L29
EXCCL4532U1
NIU
21
3
DA6
MA147-(TX)
DA6
MA147-(TX)
21
C147
100u/16
C147
100u/16
C143 0.1C143 0.1
C146
0.1
C146
0.1
R160
100
R160
100
R162
0
R162
0
C139 0.1C139 0.1
R159
100k
R159
100k
2 3
D4
RD10M_T1B_B2
D4
RD10M_T1B_B2
L28
EXCCL4532U1
NIU
L28
EXCCL4532U1
NIU
R167
NIU
R167
NIU
R166
0
R166
0
2 1
C149
100u/16
C149
100u/16
R165
47k
R165
47k
21
C144
100u/25
C144
100u/25
C140 0.1C140 0.1
R164
1k
R164
1k
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
CN10
NIU
CN10
NIU
2 1
C150
33u/16
C150
33u/16
1
2 3
Q19
2SA1681
Q19
2SA1681
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
CN9
B11B-PH-K-S
CN9
B11B-PH-K-S
R158
10k
R158
10k
1
2 3
Q22
RT1N141C
Q22
RT1N141C
21
C141
10u/25
C141
10u/25
1
2 3
Q20
2SC3052
Q20
2SC3052
21
C145
NIU
C145
NIU
21
C151
10u/25
C151
10u/25
C142 0.1C142 0.1
1
2 3
Q21
2SC3052
Q21
2SC3052
TP
TP9
TP
TP9
2 1
C148
100u/16
C148
100u/16
R163
1.5k
R163
1.5k
R161
1k
R161
1k
CIRCUIT DIAGRAM (AUDIO 4/4)