Roland VG-88 Service Notes

22
Apr. 2000VG-88
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
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CIRCUIT DIAGRAM (SW-2)
／回路図 (SW-2)
A
4
4
33
3
4
R28
1
DIGITAL
+5V
AD/DA +5V
ANALOG
+15V
ANALOG
-15V
CPU
+3.3V
LCD LED_Backlight
AC CORD TRANS
AC SW
71565267
PS BOARD ASSY
TO CN6 on MAIN BOARD
+
5D
D
+
-
+
D
+
D 3.3
+-
~ ~
D36
D5SB20
24
13
C10
330/6.3
C3
0.1/50
C4
0.1/50
C13
470/16
C16
100/25
D31
RD16ES
12
R27
10K
C19
70/35
C20
470/35
C23
70/35
C22
470/35
R29
4.7K
Q4
2SA1015GR
21
Q3
2SC2120Y
12
+-
~ ~
D34
W02A
24
1
C15
1000/35
C21
0.1/50
C18
0.1/50
C7
0.1/50
C8
0.1/50
R26
10K
D32
RD16ES
12
C17
100/25
Q1
2SD2012
1
32
C12
470/16
Q2
2SB1375
1
23
C24
2200/16
C11
330/6.3
C5
0.1/50
C6
0.1/50
CN9
RTB-1.5-5
1
1
3
3
4
4
5
5
6
6
+-
~ ~
D35
W02A
2
13
IC4
PQ05RF21
IN
1
OUT
2
OE
4
GND
3
C2
0.1/50
C9
330/6.3
C1
0.1/50
C28
2200/16
IC5
AN7705F
IN
1
OUT
3
COM
2
R25
10/3W
4.7K
C14
1000/35
C26
2200/16
CN10
WIRING 10P(POWER)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
TER7
TER61-017
1
TER1
TER61-0171
1
TER5
TER61-0171
1
TER6
TER61-0171
1
TER2
TER61-0171
1
TER4
TER61-0171
1
TER3
TER61-0171
1
IC3
UPC2933HF
IN
1
OUT
3
COM
2
C27
2200/16
C25
2200/16
C29
N.I.U.
C30
N.I.U.
D37
S5688G
12
C31
2200/16

Roland VG-88 Specifications

General

Brand	Roland
Model	VG-88
Category	Music Pedal
Language	English