Roland SPD-20 Service Notes

右左右左
右 左右 左
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A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
5
L/MONO
R
to CN 401
From BRA
AC 12V
NIU
VOLUME BOARD
SIDATA
BCLK
LRCK
Lch_OUT
Rch_OUT
Rch_RETURN
Lch_RETURN
PHONES_L
PHONES_R
XRESET
PHONES_R
PHONES_L
Rch_OUT
Rch_RETURN
Lch_RETURN
Lch_OUT
+
5D
D A A A
D
+
5A
A
A A
A
+
5A
-
A5
A A A
+
5A
-
A5
+
5A
-
A5
A
A
A
A
AAA
A
A
AAA
+
5A
-
A5
A
A
A
A
A
A
A
A
+
5A
-
A5
A
-
5D
A A A
A
+
5D
DD
D
D
D
D
A
-
A5
A
+
5A
-
A5
AD
D
IC7
UPD63200GS
DVDD
4
AVDD
7
AVDD
8
LR/WDCK
13
CLK
16
SI/LSI
15
18/16
3
4/8FS
1
LRS/RSI
14
LOUT
11
ROUT
6
RREF
9
LREF
10
DGND
2
AGND
5
AGND
12
C39
0.1
C38
0.1
R18
10k
R16
10k
R14
10k
R22
56k
R5
390
Q2
2SA1037KR
1
3 2
Q5
2SK208Y
3
12
R17
10k
R15
10k
R13
10k
R21
56k
R4
390
Q1
2SA1037KR
1
3
2
Q4
2SK208Y
3
12
C2
10/16
C1
10/16
C25
10/16
C26
10/16
C37
100/6.3
C33
100/6.3
C29
100/6.3
R31
1k
IC4C
M5218AFP
+
-
8 4
C14
0.1
C15
0.1
R30
10k
R29
27k
C24
47p
C27
10/16
R25
1k
R32
56k
IC4B
M5218AFP
+
-
6
5
7
Q8
DTC343TK
1
23
L2
BLM21A601S
JK2
HLJ7101-01-3010
1
2
4
R6
1k
R11
10k
R10
27k
C9
47p
C4
10/16
R1
1k
R2
56k
IC4A
M5218AFP
+
-
2
3
1
Q3
DTC343TK
1
23
L1
BLM21A601S
JK1
HLJ7101-01-3010
1
2
4
R20
1k
R27
5.6k
R26 27k
R33
56k
C21 47p
Q7
DTC343TK
1
23
IC5B
M5216FP
+
-
6
5
7
IC5C
M5216FP
+
-
8 4
C16
0.1
C17
0.1
R9
1k
R8
5.6k
R7 27k
R3
56k
C7 47p
Q6
DTC343TK
1
23
IC5A
M5216FP
+
-
2
3
1
JK10
HEC0740-010010
2
1
3
L29
ELC08D054
D15
1GWJ42
12
D11
DSK10C
1 2
D12
DSK10C
12
C139
470/25
C132
470/25
C142
470/25
C134
0.1
C124
0.1
C135
0.1
C120
0.1
C121
100/6.3
C115
100/6.3
IC27
UPC78L05J
IN
3
OUT
1
COM
2
IC25
UPC79L05J
IN
2
OUT
3
COM
1
Q28
2SA1037KR
1
32
Q27
2SC2412KR
1
23
Q25
2SC2412KR
1
23
R131
47k
R147
10k
R122
100k
R154
560
R146
47k
C128
10/16
R136
10k
R198
33k
R183
560
R179
560
C151 1000/6.3
R156 22k
R155
22k
R161 15k
C148
680p
C143 1/50
C136 1000p
C149
0.047
R192 6.8k
IC28
BA9700A
DTC
1
RT
2
CT
3
FB
4
OUT
5
NC
6
GND
7
VCC
8
NC
9
SW
10
VREF
11
-IN
12
1/2VREF
13
+IN
14
R193
15k
R196
10k
R191
47k
C23
1000p
C3
1000p
C5
10/16
C28
10/16
R34
1W22
R12
1W22
D5
DSK10C
12
D4
DSK10C
12
CN1
SPD-11 Wiring Harness A
1
1
2
2
3
3
4
4
5
5
6
6
7
7
SW2A
SPUN19-2N-W
12
11
13
C20
560p
C19
560p
C12
2700p
C13
2700p
C11
180p
C10
180p
SW2B
SPUN19-2N-W
22
21
23
C131
Q37
2SB1184RF5
1
23
C32
100/6.3
C31
100/6.3
D6
RD5.6M
13
C40
0.1
CIRCUIT DIAGRAM／回路図
SPD-20
Apr, 1998

Roland SPD-20 Specifications

General

Pads	8
MIDI	Yes
Pad Type	Rubber
Power Supply	AC Adapter
Type	Electronic Drum Pad
Instruments	210
Effects	Reverb, EQ
Outputs	Headphones