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RC-20
Roland RC-20 User Manual
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RC-20
May. 2001
18
CIRCUIT DIAGRAM (JACK 17 LOT up)
INS
T
MIC
AU
X_I
N
*1: 0.47/16S = Submi
cron Chip
Capacit
or
REVERSE
PHASE
SHIFT
TO CN1 ON
CENTER BOA
RD
OUTPUT
INST OUT
INST IN
TO CN3 ON
PANEL BOAR
D
POWER
LED
PEAK L
ED
MIC IN
MIC OU
T
INST O
UT
INST I
N
*2
*2
MIC IN
MIC OUT
*2:
No M
oun
ting
or HS
J08
57-0
1-1
210
*1
*1
*1
75D433P001 2/2
JACK BOARD ASSY
DA_R
DA_L
FET SW
FLAT_AMP_ON/O
FF
AUX_C.CANC
EL_MUTE
MIC_MU
TE
T_SHIFT
AUX_NORM
_MUTE
INST_MU
TE
REVERSE
A
1/2AVcc
1/2AVcc
A
A
AVcc
1/2AVcc
A
1/2AVcc
AVcc
A
A
AVcc
AVcc
A
1/2AVcc
A
A
A
A
AVcc
A
1/2AVcc
D
D
D
D
D
+
D
3.
3
D
AVcc
+
D
3.
3
1/2AVcc
A
A
AVcc
A
AVcc
A
AVcc
AVcc
AVcc
A
AVcc
A
AVcc
A
A
+
D
3.
3
D
D
+
D
3.
3
1/2AVcc
D
1/2AVcc
AVcc
A
D
1/2AVcc
A
A
A
D
D
A
A
AVcc
A
AVcc
AVcc
+
D
3.
3
+
D
3.
3
R1
10
k
R2
1
M
J
K3
AJ324
A-3C
1
2
3
R
28
47
K
R
23
22
K
R
26
22
K
R
29
47
K
R
24
47
K
L1
N2
012
Z60
1T
2
L6
N2
012
Z6
01
T2
R
12
10
k
R
47
10
0k
C
24
10/
16
R
46
1
k
C5
1/5
0
JK
7
HT
J-0
64-
12D
1
2
3
C
21
NF
M4
51
6P
13
C2
04
F
C
23
100
/16
C
26
47/
6.3
R
48
10
k
+
-
I
C6
B
M5
218
AF
6
5
7
R
33
15
k
C20
N.I.U
R
34
56
k
R
37
47
k
+
-
I
C5
A
M5
218
AF
2
3
1
R
39
47
k
R
41
56
k
C13
N.I.U
R
11
10
k
L3
N2
012
Z60
1T
2
+
-
I
C2
C
M5
218
AF
8
4
+
-
I
C6
C
M5
218
AF
8
4
I
C1
E
TC
40
66
BF
T
14
7
C
10
0.4
7/1
6S
+
-
I
C3
B
M5
218
AF
6
5
7
+
-
I
C5
B
M5
218
AF
6
5
7
R
27
10
K
C1
0.4
7/1
6S
R
36
68
k
R
15
10
k
Q
2
2S
C4
11
6G
R
1
2
3
C8
0.0
1
R
13
100
k
R8
4.7
k
C6
0.0
27
L8
N2
012
Z60
1T
2
L10
N2
012
Z60
1T
2
C
17
100
P
CN4
R
IB
ON
3
P
1
1
2
2
3
3
CN3
RI
B
ON
3
P
1
1
2
2
3
3
IC7
S-
852
0E
33M
C-
BJ
S
ON/OFF
1
VIN
5
VSS
2
EXT
4
VOUT
3
C
29
100
/16
C
28
0.1
L15
SL
F703
2T-
4R7
M1R
7-2
4
.7
uH
C
19
10
p
L16
SL
F703
2T-
151
MR37
-2
15
0u
H
R
40
39
k
+
-
I
C6
A
M5
218
AF
2
3
1
R
35
56
k
C
14
0.0
056
R
31
12
K
R
38
56
k
CN6
5301
5-0
210
1
1
2
2
I
C1
D
TC
40
66
BF
T
11
10
12
I
C1
C
TC
40
66
BF
T
8
9
6
I
C4
B
TC
4
W66
F
5
6
3
DA1
1S
S30
2
2
1
3
DA2
1S
S30
2
2
1
3
DA4
1SS
30
2
2
1
3
DA5
1S
S30
2
2
1
3
DA6
1SS
30
2
2
1
3
+
-
I
C5
C
M5
218
AF
8
4
Q
1
2S
K8
80
GR
3
1
2
L13
N2
012
Z6
01
T2
L2
N2
012
Z60
1T
2
L9
N2
012
Z60
1T
2
L12
N2
012
Z60
1T
2
L7
N2
012
Z6
01
T2
L14
SB
T-0
46
0TF
R6
10
0k
C4
0.0
1
JK
1
HT
J-06
4-1
2I
2
4
1
JK
2
HT
J-06
4-1
2I
2
4
1
JK
6
DJ
-071
1-0
20
3
1
2
J
K4
HT
J-06
4-1
2I
2
4
1
Q
10
IR
F
76
06
D
7
G
4
D
5
S
2
D
6
S
3
S
1
D
8
D7
SS
14
1
2
D3
SS
14
1
2
+
-
I
C3
A
M5
218
AF
2
3
1
C
30
470
p
C
31
470
p
CN2
WIR
IN
G
1
4
P
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
C
18
1/5
0
I
C1
B
TC
40
66
BF
T
4
3
5
+
-
I
C2
A
M5
218
AF
2
3
1
+
-
I
C2
B
M5
218
AF
6
5
7
R
19
47
k
R9
47
k
Q
6
RN
13
07
1
2
3
R
16
47
k
C7
1
00p
R
17
47
k
R
18
47
k
R
14
10
0k
Q
7
RN
13
07
1
2
3
R5
4
7k
I
C1
A
TC
40
66
BF
T
1
2
13
Q
4
RN
13
07
1
2
3
Q
3
RN
13
07
1
2
3
C2
1/5
0
R4
47
k
Q
5
RN
13
07
1
2
3
R
10
47
k
R
20
47
k
R
50
10
k
FL
1
SB
T-0
180
W
1
2
4
3
I
C4
A
TC
4W
66
F
1
2
7
R
25
47
K
R
30
47
K
C
11
0.1
R7
82
k
Q1
1
2S
K8
80G
R
3
1
2
D9
1S
S35
5
1
2
R
51
1
M
Q1
2
RN
13
07
1
2
3
R
53
47
k
J
K5
HT
J-06
4-1
2I
2
4
1
R
52
4.7
k
R3
10
k
CN1
A200
1WR2
-8
P
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
+
-
I
C3
C
M5
218
AF
8
4
C
33
10
p
R
55
47
k
R
21
10
K
DA3
1SS
30
2
2
1
3
R
22
47
K
C9
0.4
7/1
6S
L5
N2
012
Z6
01
T2
R
54
22
k
C
34
10/
16
R
57
47
k
R
56
22
k
C
35
10/
16
C
36
100
p
C
37
100
p
R
58
15
k
C
39
1/5
0
R
42
10
k
I
C4
C
TC
4W
66
F
8
4
C
32
0.0
1
D
11
1SS
35
2
1
2
D
12
1SS
35
2
1
2
C
40
100
/16
C
38
0.1
L
4
N2
012
Z60
1T
2
R
60
1
K
R
62
1
K
R
61
470
k
C
12
100
P
R
59
470
k
+
-
+
-
17
19
Table of Contents
Table of Contents
1
Specifications
1
Location of Controls
2
Exploded View
3
Parts List
6
Test Mode
8
Serial Dump and Update Procedure
11
Block Diagram
13
Circuit Board (Panel, Jack)
14
Circuit Diagram (Panel)
16
Circuit Diagram (Jack 1-16 Lot)
17
CIRCUIT DIAGRAM (JACK 17 LOT Up)
18
Circuit Board (Center)
19
Circuit Diagram (Center)
20
4
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Roland RC-20 Specifications
General
Brand
Roland
Model
RC-20
Category
Measuring Instruments
Language
English
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