Roland Va-3 - Main PCB Block Circuit Diagrams

A
B
C
D
E
F
G
H
I
L
M
N
O
P
Q
R
S
T
U
J
K
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18
11
VA-3
Jan, 2001
To LEFT CONTACT B.
MK0 MK0 T0
BR0 BR0 T1
MK1 MK1 T2
BR1 BR1 T3
MK2 MK2 T4
BR2 BR2 T5
MK3 MK3 T6
BR3 BR3 T7
10MHz MK10 MK4
BR10 BR4
MK9 MK5
A1 BR9 BR5
A0 MK8 MK6
BR8 BR6
MK7 MK7
D7 BR7 BR7
D6 MK6
D5 BR6
D4 MK5 MK4 T0
D3 BR5 MK8 BR4 T1
D2 MK4 BR8 MK5 T2
D1 BR4 MK9 BR5 T3
D0 MK3 BR9 MK6 T4
BR3 MK10 BR6 T5
MK2 BR10 MK7 T6
XKEYINT BR2 BR7 T7
MK1 MK8 MK9
XRD BR1 BR8 BR9
XWRL MK0
XKEY BR0
T0
T7 T1
XRST T6 T2
T5 T3
T4 T4
T3 T5
T2 T6
T1 T7
T0
BR0 MK0
BR1 MK1
BR2 MK2
BR3 MK3
BR4 MK4
BR5 MK5
BR6 MK6
BR7 MK7
BR8 MK8
BR9 MK9
D
D
D
D D
D
5VD
5VD
CN15
AMPC1-2720P
3
4
5
6
7
8
2
1
9
20
19
18
17
16
15
14
13
12
1110
C96
33uF25s
CN16
AMPC1-2716P
3
4
5
6
7
8
2
1
9
10
11
12
13
14
15
16
C98 100pF
C99 100pF
C100 100pF
C101 100pF
C102 100pF
C103 100pF
C104 100pF
C105 100pF
C106 100pF
C107 100pF
C108
100pF
C109 100pF
C110 100pF
C111 100pF
C112 100pF
C113 100pF
C97
4n7s
C95
100nFs
RA28
8X10Ks
4
5
6
7
8
9
3
2
1
RA27
8X10Ks
4
5
6
7
8
9
3
2
1
RA29
8X10Ks
4
5
6
7
8
9
3
2
1
RA30
8X10Ks
4
5
6
7
8
9
3
2
1
C152 100pF C153
100pF
C154 100pF C155 100pF
IC10
SSC1080F0B
7 33
20 46
24
23
22
21
19
18
17
16
15
14
13
12
11
10
9
8
6
5
4
3
2
1
31
30
29
28
27
26
25
32
49
48
47
44
43
42
41
40
39
38
37
34
36
35
45
50
51
52
VDD VDD
VSS VSS
SC10
PR10
SC9
PR9
SC8
PR8
SC7
PR7
SC6
PR6
SC5
PR5
SC4
PR4
SC3
PR3
SC2
PR2
SC1
PR1
SC0
PR0
T7
T6
T5
T4
T3
T2
T1
T0
CLK
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
INT
RD
WR
CS
RESET
TEST1
TEST2
FL4
ELKS471FA
2
13
A[0..1]
D[0..7]
XRD
XWRL
XKEY
XRST
XKEYINT
10MHz
To RIGHT CONTACT B.
CLK:
FREQUENCY:54.7KHz
DUTY:50%
PULSE:
DUTY:12.5%
FREQUENCY:6.84KHz
PULSE WIDTH:18.3uS
(AN4)
FLAT
FLAT
FLAT
FLAT
FLAT
DBV
PULSE
BEAM
PULSE
XDBPLS
XRST
CLK
A
A AA
A
A
A
D
D
D
D
D
AD
+12V -12V
5VD
+12V
+12V 5VD-12V
5VD
-12V
-12V
D
5VD
D
5VD 5VD
5VD
A
-12V+12V
A
D
5VD
D13
DAN202K
21
3
D14
DAN202K
21
3
VR1
EVND8AA03B24
13
2
D15
DAP202K
2 1
3
D12
DAP202K
2 1
3
R116
820KS
R117
68KS
R118
12KS
C160
47pFs
R124
120KS
R119
2K2S
C165
10pFs
R132
10KS
R140
NIU
R139
15Ks
R138
47KS
R137
100S
TP
TP16
TP
TP
TP15
TP
C168
10nFs
R134
100S
R135
15KS
C166
100nFs
R136
33KS
C169
100nFs
C161
47nF
P.5 5%
R129
100KS
R130
NIU
C163
15pFs
C164
100nF
P.5 5%
IC30
TC7SU04F
5
1
4
3
2
R126
1K5S
R128
33KS
Q7
2SA1037KR
2
1
3
R127
3K3S
CN21
53014-0710
3
4
2
1
5
6
7
R125
4K7S
C162
8200pF
P.5 5%
Q8
2SK368GR
3
1 2
C174
100nFs
R120
10KS
R121
68KS
R122
120KS
R123
1KS
R133
18KS
R131
1MS
D16
DA204K
CHIP
2 1
3
IC29B
74HC10
3
4
5
6
IC29C
74HC10
9
10
11
8
IC29D
74HC10
147
IC29A
74HC10
1
2
13
12
C173
100nFs
IC28B
74HC393
13 11
10
9
812
QB
QC
QDCLR
IC28A
74HC393
1 3
4
5
62
QB
QC
QDCLR
-
IC26A
UPC4570G
2
3
1
-
IC26B
UPC4570G
6
5
7
-
IC26C
UPC4570G
8 4
-
IC27A
UPC4570G
2
3
1
-
IC27B
UPC4570G
6
5
7
-
IC27C
UPC4570G
8 4
C177
100nFs
L42
EXCCL4532U1
L41
EXCCL4532U1
IC28C
74HC393
7 14
GND
VCC
C170
100nFs
C167
100nFs
C171
100nFs
C172
100nFs
C175
33uF25s
C176
33uF25s
XRST
BCLK
DBV
QA
A
QA
A
TO D-BEAM BOARD
(CN15)
CIRCUIT DIAGRAM (MAIN PCB ASSY/ Beam Control. Block)
CIRCUIT DIAGRAM (MAIN PCB ASSY/ Keyscan Block)