Circuit Diagram(Main(Power Supply, Keyboard I/F)) - Roland RS-70 Service Notes

May 2003

CIRCUIT DIAGRAM(MAIN(Power Supply, Keyboard I/F))

fig.CircuitMain4
Power Supply
CN8
A D P V
1
1
2
2
3
3
4
4 + 5 + 5
D R E F
5 A
5
6
6
7
7
8
8
D R EF
8P-SCN
8X170-P2.5-XHP-SCN-R
3
MA142WK-(TX)
IC34
D + 5 UPC29M33T
1
IN
C199
10/16
RV2-V@M-R C200
0.1
D
A D P V
L62
EXCML20A@
39UH Q17
EXCML20A390 2SC4210-Y
3 2
R147
1K
C206
C207
100/16
RA2-V@M 0.1
A
R148 2.2
R149 2.2
R150 2.2
8
R152 2.2
7
R153 2.2
6
C234
100/16 4
RA2-V@M
A
D
D + 5
R157
1K
1
2
D + 5
IC37
7 1
VCC NC
2
NC
C236 3
NC
0.1
8
NC
4 5
GND DLY
R158
M51953BFP-C61J [NIU]
D
C237
1
D
TER1
M1698
C238 C239
A D A
[NIU] [NIU]
1 4
2 3
C245 C246
A D A
[NIU] [NIU]
F
TER2
M1698
C253
1 4 A C252 F A
2 3
0.1 0.1
F
TER3
M1698
C258 C259
1 4 D F D
[NIU] [NIU]
2 3
F
C262 C263
D F D
[NIU] [NIU]
C266 C267
D F D
[NIU] [NIU]
38
A D P V
C187
1000/16
RE3-V@M C188
0.1
A
D + 5
C190
C189 0.1
RE3-V@M
1000/6.3
DA402
D
D + 3. 3
3
OUT
C201 C202
0.1 RV2-V@M-R
10/16
D
+ +
A 9 A 9
C204
100/16
C205 RA2-V@M
ECA-M@
470/16
A
C208
100/16
RA2-V@M
A
A - 9
C223 1000P
IC35 A
R151 SC@M
1
CD CS
1K C233
R411 22 16SC10M+T (OS)
IPK
2 2 1
ES
D5 SB20-03P R412 22
A - 9
VCC
C232
5
VIN-
ECA-M@
R154 470/16
8.2K
3
GND CT
R156 A A
C235 47K
NJM2360AM
150P
A A
L64
SBCP-87@H
330UH
XRST
+ 5 + 5
D
R413
4.7K
IC36
TC7S08FU XRST5V
4
XRST5V
C418
D 0.1
C240 C241 C242 C243 C244
D A D A D A D A D A D
[NIU] [NIU] [NIU] [NIU] [NIU]
C248 C251
C247 C249 C250
D A D A D A D A D A D
[NIU] [NIU]
0.1 0.1 0.1
C254 C255 C256 C257
F A F A F A F D F
[NIU] [NIU] [NIU]
0.1
C260 C261
F D F D F
[NIU] [NIU]
C264 C265
F D F D F
[NIU] [NIU]
C268 C269 C419
F D F D F A F A
[NIU] [NIU] [NIU]
Keyboard I/F
+ 5
D
+ 5
D
C185 C186 C184
RV2-V@M-R
10/16
0.1 0.1
D D D
A[0..1]
A1 SC10
48 24
A0 47 23 PR10
SC9
22
D[0..7]
PR9
21
D7 44 19 SC8
D6 PR8
43 18
D5 42 17 SC7
D4 PR7
41 16
D3 SC6
40 15
D2 39 14 PR6
D1 SC5
38 13
D0 PR5
37 12
11 SC4
PR4
10
XRD5V SC3 RA32 22
36 9
XRD5V
XWR5V 35 8 PR3
XWR5V
XKSCS SC2
45 6
XKSCS
XKSINT PR2
34 5
XKSINT
4 SC1
PR1
3
KSCLK 49 2 SC0
KSCLK
PR0
1
RA34 22
31 T7
XRST5V XKSRST T6
50 30
R146 100 T5
29
51 28 T4
T3
52 27
C203 T2
26
0.01 25 T1
T0 RA36
32
D
IC33 SSC1080
D
C420 C421 C422
F A F A F
[NIU] [NIU] [NIU]
+ 5
RA31 10 D
EXBV8V@JV 2 1
3
R144 10 KBSC10 KBSC10
4
RA30
R145 10 KBPR10 KBPR10 5
10K
KBSC9 KBSC9
1 8 6
KBPR9 KBPR9
2 7 7
3 6 KBSC8 KBSC8 8
KBPR8 KBPR8
4 5 9 10
1 16 KBSC7 KBSC7 2 1
KBPR7 KBPR7
2 15 3
KBSC6 KBSC6
3 14 4
RA33
4 13 KBPR6 KBPR6 5
10K
KBSC5 KBSC5
5 12 6
KBPR5 KBPR5
6 11 7
7 10 KBSC4 KBSC4 8
KBPR4 KBPR4
8 9 9 10
KBSC3 KBSC3
1 16 2 1
2 15 KBPR3 KBPR3 3
KBSC2 KBSC2 C191
3 14 4
RA35
KBPR2 KBPR2 15P
4 13 5
10K
5 12 KBSC1 KBSC1 6 C194
KBPR1 KBPR1 15P
6 11 7
7 10 KBSC0 KBSC0 8
+ 5
KBPR0 KBPR0 D
8 9 9 10
EXB2HVJV@ KBT0 KBT0
1 16 2 1
2 15 KBT7 KBT7 3
KBT6 KBT6
3 14 4
KBT5 KBT5 RA37
4 13 5
5 12 KBT4 KBT4 6 [NIU]
KBT3 KBT3
6 11 7
KBT2 KBT2
7 10 8
8 9 KBT1 KBT1 9 10
22 EXB2HVJV@
C209 C210
15P 15P
C216 C217
15P 15P
C224 C225
15P 15P
RS-70
CN7
KBT0 1
1
KBT1
2
2
KBT2
3
3
KBT3 4
4
KBT4
5
5
KBT5 6
6
KBT6
7 To
7
KBT7
8
8 Keyboard
KBPR4 9
9
KBSC4
10 Unit
10
KBPR5
11
11
KBSC5 12
12
KBPR6
13
13
KBSC6
14
14
KBPR7 15
15
KBSC7
16
16
16FE-ST-VK-N
L61
[NIU]
D
AFT
AFT
C192 C193
D
15P 15P
C195 C196
15P 15P
C197 C198
15P 15P
KBPR8
KBSC8
KBPR9
KBSC9
KBPR10
KBSC10
CN9
KBPR0
1
1
KBSC0 2
2
KBPR1
3
3
KBSC1 4 To
4
KBPR2
5
5 Keyboard
KBSC2
6
6
KBPR3 7
Unit
7
KBSC3
8
8
KBT0
9
9
KBT1 10
10
KBT2
11
11
KBT3
12
12
KBT4 13
13
KBT5
14
14
KBT6
15
15
KBT7 16
16
16FE-ST-VK-N
C211 C212 C213 C214 C215 D
15P 15P 15P 15P 15P
C218 C219 C220 C221 C222
15P 15P 15P 15P 15P
C226 C227 C228 C229 C230 C231
15P 15P 15P 15P 15P 15P
39