Roland RS-70 Service Notes page 31

fig.CircuitMain2
CN2
LSD6
22
22
LSD5
21
21
LSD7
20
20
LSD4
19
19
LSCAN2
18
18
LSD3
17
17
LSCAN1
16
16
LSD2
15
15
LSCAN0
14
14
LSD1 TO
13
13
SSEN
12
12
LSD0
PANEL
11
11
SSCAN2
10
10
LLCK L
9
9
SSCAN1
8
+ 5 8
D
DBSIG
7
7
SSCAN0
6
6
DGND
5
5
C55 DGND
4
4
C54 0.1 D+5V
3
3
100/6.3 D+5V
2
2
RA2-V@M XDBPLS
1
1
D
22FE-BT-VK-N
VRSCAN1
C403 1000P
VRSCAN0 C404 1000P
D
+ 5
R E F
C65
CN3
C64 0.1
100/6.3 VRSCAN1
18
18
RA2-V@M VRSCAN0
17
17
REFGND
R EF 16
16
REFGND
15
+ 15
A 9
REF+5V
14
14
REF+5V
13
13
AD1
12
12
C73 C74 A+9V TO
11
11
AD0
0.1
100/16 10
10
RA2-V@M DGND PANEL
9
9
AD2
8
8
D+5V R
D 7
7
D+5V
6
+ 5 6
D
DGND
5
5
DGND
4
4
BEATG
3
3
C85 BEATR
2
2
C84
0.1 1
1
100/6.3
RA2-V@M 18FE-BT-VK-N
D
+ 5
R E F
C412 0.1
D
C413 0.1
R E F D
C405
RV2-V@M-R
10/16
A D P V
+ 5
D
L52
N2012Z601T02
L53 CN5
N1608Z@T01 LIGHT9V
D
20
20
600 LIGHT9V
19
19
DGND
18
18
DGND
17
17
C108 DGND
16
16
C107 0.1 LCDV5
15
15
100/6.3 D+5V TO
14
14
RA2-V@M D+5V
13
13
DGND LCD
D 12
12
LCDDB7
11
11
LCDDB6
10
10
LCDDB5
ON
9
9
LCDDB4
8
8
LCDDB3 PANEL
7
7
LCDDB2
6
6
LCDDB1
L
5
5
LCDDB0
4
4
LCDE
3
3
LCDRXW
2
2
LCDRS
1
1
20FE-BT-VK-N
Controller I/F
N2012Z601T02
JK2
L14
2
4
HOLD
3
1
LGR4609-7100
L15
0
D
D
N2012Z601T02
L16
N2012Z601T02
JK3
L17
2
EXP. 4
3
1
LGR4609-7100
L18 C57
0 0.1
D
D
R60
[NIU]
AFT.T.
AFT
C62
[NIU]
C63
[NIU]
D
N2012Z601T02
L34
N2012Z601T02
L36
CN4
To
1
1
2
Bender 2
3
3 + 5
D
Unit 4
4
S4B-PH-K-S L39
N2012Z601T02
N2012Z601T02
C96
0.1
+
A 9
C113
0.1
-
+
IC19C
M5218AFP
C406
0.1
A - 9
+ 5
D
R45
47K
R46 1K HOLD
+ 5
D
C42
0.1
3
DA6
MA147-(TX)
D D
+ 5 + 5
D
MCR25J@
R47
220 R48
(1/4W) 100K
2
-
1
R51
3
+
+ 5
D
IC19A
R50
47 0 100 M5218AFP
3
C58 DA7
0.1 MA147-(TX)
D D D
+ 5
C59
R55 [NIU]
[NIU] R61
R57
[NIU]
0
6
-
+ 5
D
7
5
+
IC19B
R63 M5218AFP
[NIU] R65
+
A 9
0
R66
D D
4.7K
R68
Q6
1
1K 2SA1037KR
R69 C79
10K 1000P
D D
+
A 9
R70
4.7K
L42
R73
Q7
1
C97
10/16 1K 2SA1037KR
RV2-V@M-R
R74 C101
10K 1000P
D
D D
D2
DBSIG
1 3
+ 5
D
MA720-(TX) C111
0.1
3
DA8
MA147-(TX)
D D
D
HOLD
R49 470
EXPRESSION
C56
0.1
D
R62
AFTER
[NIU]
C66 R64
[NIU]
0
D D
1K
BEND
R67
C77
0.01
D
R71 1K
MOD
C98
0.01
D
AD2 R78 470
CUTOFF
C109
0.01
D
AD1 R77 470
RVR1
C106
0.01
D
AD0 R79 470
RVR0
C110
0.01
D
R80
D-BEAM
R81 0
C112
[NIU]
12K
D D
RS-70
35