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Manuals
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Roland Manuals
Electronic Keyboard
Va-3
Service notes
Circuit Diagram (Jack Pcb Assy) - Roland Va-3 Service Notes
V-arranger keyboard
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Contents
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Table of Contents
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Jan, 2001
1
2
3
4
5
6
A
CIRCUIT DIAGRAM (JACK PCB ASSY)
B
C
D
-
UPC4570G
IC7C
+
5VD
D7
E
DA204K
3
R116
L5
10Ks
FBR07HA850TB-00
R117
3
6
-
AN3
7
2
5
+
1
0s
5VD
L12
R118
UPC4570G
5VD
JK4
FBR07HA850TB-00
HLJ052001010
100s
IC7B
C116
F
100nFs
Q10
2
DTA114EK
2
3
D
D
1
D
G
2
-
1
3
+
IC7A
H
UPC4570G
D
I
J
R52
22Ks
R38
2
1Ks
K
C70
3
100nFs
D3
DA204K
D
L
JK5
YKF51_5054
R29
1
1
220s
L2
2
M
2
1
4
3
D5
4
DAN202K
3
2
3
3
4
SBT0160W
5
6
L3
R32
1
4
2SC2412K
220s
2
3
N
Q7
3
R31
SBT0160W
2
220s
1
2SA1037K
C37
100nFs
L4
Q6
3
D
SBT0460
5VD
2
1
D
R30
O
22Ks
P
5VD
R39
0_22OHM 1W
D2
SFPB_56
IC6
8
1
CD
CS
7
2
2
SI
ES
6
3
Q
V+
CT
4
5
GND
INV
C49
NJM2360M
100uF16
FLAT
R41
22Ks
D
R40
C50
100nFs
2K2s
R
C48
C47
390 pF
560pFs
5% np0
5% np0
D
D
L11
RCH-875-151K
S
L12
150uH
180uH
C29
680pF
560pF
T
U
7
8
9
10
11
12
VCC
IC19
VCC
TA7805F
C114
1
3
IN
OUT
47uF16
C117
C120
5VD
10uF16
0.1
C73
D
NIU
C115
R88
47uF16
A
NIU
10 1/2W
-VCC
R89
DA+5V
C51
C74
C75
C77
NIU
10uF16
C76
100nFs
10uF16
R90
100nFs
R91
D
A
12Ks
R119
12Ks
IC11
4K7s
2
AK4324
-
3
+
DTC144WS
R65
R66
C82
Q11
0s
NIU
R64
R68
12
DEM1
NIU
11
24
12Ks
12Ks
DEM0
DZFL
DADIF2
15
DIF2
R72
R73
14
19
NIU
DIF1
AOUTL+
A
A
0s
DADIF0
13
DIF0
18
AOUTL-
SDDA1
7
C83
SDATA
OUTP1
NIU
8
17
LRCK
AOUTR+
BCKC
6
BICK
16
AOUTR-
R75
MUTE
5
PD
R77
12Ks
9
23
SMUTE
DZFR
10
12Ks
DFS
256fs
4
21
6
MCLK
VREF
-
3
CKS
5
+
C87
100nFs
R81
R84
12Ks
C88
12Ks
NIU
A
A
C67
D
A
100nFs
5VD
SCD7
3
Q8
1
2SC2412K
5VD
LSCC7
CN6
AMPC1_2720P
VCC
-VCC
SDDA1
20
1
BCKC
19
2
MIDI-A TX
18
3
OUTP1
MIDI-A RX
17
4
XRES
256fs
16
5
AN3
15
6
SCD7
14
7
LSSC7
MUTE
13
8
12
9
11
10
A
D
6N137
TO MAIN BOARD
5VD
IC3
R36
(CN9)
8
NC
VCC
7
LA
EN
3K3s
MIDI-A RX
6
LC
OUT
5VD
5
NC
GND
C38
100nFs
R35
10Ks
D
MIDI-A TX
6
5
IC4C
74HC04
R34
TXD
FLAT
10Ks
R33
4
3
XRES
22Ks
IC4B
74HC04
FLAT
D6
DAN202K
1
2
-VCC
IC5
79L12
TO-92
TP8
1
2
3
IN
OUT
TP
R42
2K2s
C45
470uF16
C44
C43
100nFs
100nFs
D
A
A
C46
1000uF25
CN4
53014-0310
1
2
2
3
TO LCD CONTROL B.
(CN4)
13
14
15
16
17
18
DA+5V
C119
0.1
IC14A
C78
C79
AMZ_1200pF
2
100uF16
C80
-
1
1
3
+
NJM5532MD
R92
R93
R114
8K2s
8K2s
IC10A
100Ks
100uF16
R69
C81
NJM5532MD
AMZ_560pF
100Ks
A
A
A
IC14B
C61
C84
AMZ_1200pF
6
100uF16
-
C85
R78
7
7
5
+
NJM5532MD
R79
R115
IC10B
100uF16
R85
8K2s
8K2s
C86
100Ks
NJM5532MD
100Ks
AMZ_560pF
A
A
A
VCC
VCC
C89
C90
100nFs
100nFs
-
-
+
IC10C
+
IC14C
A
NJM5532MD
A
NJM5532MD
C97
C99
100nFs
100nFs
-VCC
-VCC
VCC
12VA
Q1
3
2
2SC2882
R2
C56
4K7s
47uF16
C6
47uF16
A
CN3
12VA
5045_09A
1
+12V
5VA
R105
5VD
2
NC
NIU
3
NC
4
NC
5
from POWER AMP.B.
+5V
6
(CN3)
+5V
7
DGND
8
DGND
9
AGND
L6
C72
C57
100uF25
100uF16
EXCCL4532U1 NIU
C60
1000uF16 NIU
L10
EXCCL4532U1 NIU
A
D
5VD
L7
EXCCL4532U1
C66
TP6
100nFs
TP
TP7
TP
VR1
IC4G
RK09D111
74HC04
D
FLAT
D
19
20
21
22
23
24
Q9
2SA1037K
1
3
R13
47Ks
R12
220KS
R15
Q5
2SC2412K
3
47Ks
2
C113
3u3F50
R14
1
47Ks
3
MUTE
2
1
A
A
Q4
R11
2SC2412K
100KS
A
D
C20
C15
82pFs
82pFs
IC2A
BA5218FP
R21
R9
FLAT
R20
12Ks
R53
10Ks
C22
C18
12Ks
10Ks
10uF16BP
10uF16BP
2
2
1
1
L
3
3
-
-
C14
IC9A
R24
10uF16BP
BA5218FP
8K2s
A
FLAT
A
R55
100Ks
A
R
C19
C13
82pFs
82pFs
R63
R19
R8
R18
12Ks
R54
10Ks
100Ks
12Ks
C21
10Ks
10uF16BP
6
6
7
7
5
5
A
-
-
C12
C16
IC9B
IC2B
10uF16BP
10uF16BP
A
BA5218FP
BA5218FP
A
A
FLAT
FLAT
R23
8K2s
CN1
53014-0610
-VCC
to master volume
FLAT
IC9C
IC2C
BA5218FP
BA5218FP
-
-
VCC
-VCC
VCC
-VCC
FLAT
C55
100nFs
C54
C71
C53
100nFs
100nFs
100nFs
A
A
C25
10uF16
L
CD In Level
4
1
3
A
C26
VR2
10uF16
RK09K12A0A2AA
R
TP3
C62
100nFs
TP
TP4
C63
100nFs
TP
TP5
FIX1
C64
100nFs
TP
FIX2
1
2
A
IC4A
74HC04
FLAT
D
A
D
D
VA-3
25
26
27
28
29
30
12VA
R62
1Ks
D1
C112
BZX79C5V1
NIU
A
CN2
5045_04A
R50
560s
4
AGND
3
ROUT
TO POWER AMP. B.
R51
560s
2
LOUT
(CN2)
AGND
1
A
FL1
JK2
R57
1Ks
R87
ELKS471FA
HLJ0520_01_110
1
3
2
3
2
680s
1
3
L/M
Q3
L8
1
2SC2878
A
EXCCL4532U1
R56
1Ks
R60
A
A
1K8s NIU
R58
FL2
JK1
A
1Ks
R86
ELKS471FA
HLJ0520_01_110
1
3
2
3
2
680s
1
R
3
Q2
L9
1
2SC2878
A
R59
EXCCL4532U1
1Ks
A
A
R61
1K8s NIU
A
R10
220Ks
BA5218FP
IC18C
-
VCC
-VCC
C106
C107
100nFs
100nFs
A
C108
IC18A
4u7F16
BA5218FP
3
1
FL4
JK3
2
ELKS471FA
R101
3
1
2
100Ks
L
R25
R96
R97
100Ks
A
22Ks
10Ks
1
C109
FL5
A
4u7F16
C111
ELKS471FA
A
R
82pFs
3
1
3
IC18B
BA5218FP
5
R26
100Ks
7
R100
YKC21_3035
100Ks
L1
6
EXCCL4532U1
A
A
R99
R98
A
A
10Ks
22Ks
C110
A
82pFs
9
8
IC4D
74HC04
FLAT
11
10
IC4E
74HC04
FLAT
13
12
IC4F
74HC04
FLAT
D
25
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