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

Mar.2001

CIRCUIT DIAGRAM(POWER)

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