Roland Dr. Sample SP-303 - Circuit Diagram(Power)

34
Mar.2001 SP-303
CIRCUIT DIAGRAM(POWER)
fig.power
POWER SW
ADAPTOR JK
ANALOG +8.5V
ANALOG +5V
CODEC
DIGITAL +5V
GA,7SEG LED Tr ARRAY
DSP,DSP MEMORY
DIGITAL +3.3V
A
A A
+
5A
+
5D
+
DD
D
D
+
D3.3
DD
D D
AD
R86
2.2k
C142
470/6.3
C145
470/16
C143
1000/16
C144
470/16
SW1A
SLG-12-465A
2
1
3
SW1B
SLG-12-465A
40 30 20 10
C146
0.1
C147
0.1
C139
1000/6.3
IC31
AN7805
IN
1
GND
2
OUT
3
C140
0.1
C141
0.1
IC30
NJM2360AF
CS
1
ES
2
CT
3
GND
4
VIN-
5
VCC
6
IPK
7
CD
8
R191
0.33(1/2W)
R187
270
R189
100
Q19
2SA1706S-AN
3
21
C216
150p
D11
SB07-03N
1 2
L7
ELC10D221E
R188
1.6k(METAL)
R190
1k(METAL)
C213
0.1
C214
1000/6.3
IC41
TA78M05S
IN
1
GND
2
OUT
3
Q10
2SD2012
1
32
D4
RB051L-40
1 2
JK6
HEC2305-01-250
2
1
3
FL1
DSS310-91D223S