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Roland Manuals
Recording Equipment
Dr. Sample SP-303
Service notes
Roland Dr. Sample SP-303 Service Notes page 27
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Mar.2001
fig.digital1
U
+
D 3. 3
2
1
D15
D15
3
D14
D14
4
D13
D13
5
D12
D12
RA12
D11
D11
6
EXBA10E103J
D10
D10
7
D9
D9
8
+
D 3. 3
D8
D8
9
10
D7
D7
2
1
D6
3
D6
D5
D5
4
D4
D4
5
RA15
D3
D3
6
EXBA10E103J
D2
D2
7
D1
D1
8
D0
D0
9
10
P67
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
CS7:
A8
A7
CS6:
A6
CS5:SMART MEDIA
A5
CS4:DRAM
A4
CS3:DSP
A3
CS2:GA
A2
CS1:FLASH 8M
CS0:FLASH 4M
A1
A0
CS7
CS7
2
1
CS6
CS6
3
CS5
CS5
4
CS4
CS4
5
RA24
CS3
CS3
6
EXBA10E103J
CS2
CS2
7
CS1
CS1
8
CS0
CS0
9
10
FLASH-WP4
FLASH-WP4
R230
FLASH-WP8
FLASH-WP8
R231
CPU-WE
CPU-WE
1
8
CPU-RD
CPU-RD
2
7
3
6
CPU-UCAS
CPU-UCAS
4
5
CPU-LCAS
CPU-LCAS
CLOCK-OUT
RA26
CPU-WAIT
EXBV8V103JV
CPU-INT
DSP-INT1
C-PD
DSP-INT
+
D 3. 3
C127
10p
0.01
MHz
10p
D
4M FLASH ROM
17
A18
48
A17
A16
A15
A14
A13
A12
A11
A10
A9
18
A8
A7
19
A6
20
A5
21
A4
22
A3
23
24
A2
A1
25
CS0
26
CPU-LCAS
11
CPU-RD
28
47
FLASH-WP4
14
RESET
12
15
8M FLASH ROM
A19
16
A18
17
A17
48
A16
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
18
+
D 3. 3
A7
19
A6
20
A5
21
A4
22
A3
23
A2
24
A1
25
CS1
26
CPU-LCAS
11
10k
CPU-RD
28
10k
FLASH-WP8
14
RESET
12
+
D 3. 3
47
D
A9
A8
A7
A6
A5
A4
A3
A2
A1
CS4
CPU-UCAS
CPU-LCAS
CPU-WE
CPU-RD
45
D15
A17
A-1/DQ15
43
IC22
D14
A16
DQ14
1
41
LH28F400BVE-BL85
D13
A15
DQ13
2
39
D12
A14
DQ12
3
36
D11
A13
DQ11
+
D 3. 3
4
34
D10
A12
DQ10
5
32
D9
A11
DQ9
6
30
D8
A10
DQ8
7
44
D7
A9
DQ7
8
42
D6
A8
DQ6
40
D5
A7
DQ5
38
D4
A6
DQ4
35
D3
A5
DQ3
33
D2
A4
DQ2
31
D1
A3
DQ1
D0
29
A2
DQ0
A1
9
A0
NC
10
NC
16
NC
13
CE
VPP
37
WE
VCC
OE
BYTE
WP
C115
27
RP
GND
0.1
46
RY/BY
GND
45
D15
A18
DQ15/A-1
IC24
43
D14
A17
DQ14
MBM29LV800BA-70PFTN
41
D13
A16
DQ13
39
D12
A15
DQ12
36
D11
A14
DQ11
34
D10
A13
DQ10
32
D9
A12
DQ9
30
D8
A11
DQ8
44
D7
A10
DQ7
42
D6
A9
DQ6
40
D5
A8
DQ5
38
D4
A7
DQ4
D 3. 3
35
D3
A6
DQ3
33
D2
A5
DQ2
31
D1
A4
DQ1
29
D0
A3
DQ0
A2
15
A1
NC
9
A0
NC
10
NC
13
CE
VPP
37
WE
VCC
OE
WP
C122
RP
27
0.1
BYTE
GND
46
GND
4M DRAM
IC27
LC32V4265T-25
28
43
D15
A8
I/O16
27
42
D14
A7
I/O15
26
41
D13
A6
I/O14
25
40
D12
A5
I/O13
24
38
D11
A4
I/O12
21
37
D10
A3
I/O11
20
36
D9
A2
I/O10
19
35
D8
A1
I/O9
18
10
D7
A0
I/O8
9
D6
I/O7
13
8
D5
NC
I/O6
14
7
D4
NC
I/O5
17
5
D3
NC
I/O4
32
4
D2
NC
I/O3
3
D1
I/O2
2
D0
I/O1
22
VCC
6
VCC
16
1
RAS
VCC
30
UCAS
C129
C130
C131
31
LCAS
0.01
0.01
0.01
15
WE
29
44
OE
VSS
39
VSS
23
VSS
L11
N2012Z601T02
R193
10k
Q20
1
RN2421
R192
10k
C117
C116
10/16
0.1
D
D15
D14
D13
D12
D
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
+
A19
A18
L14
A17
N2012Z601T02
A16
A15
A14
A13
A12
A11
A10
A9
A8
C123
C124
A7
A6
0.1
10/16
A5
A4
A3
A2
A1
D
A0
+
D 3. 3
C132
10/16
D
SP-303
GA-DMA-REQ0
GA-DMA-REQ0
GA-DMA-REQ1
GA-DMA-REQ1
GA-DMA-ACK0
GA-DMA-ACK0
GA-DMA-ACK1
GA-DMA-ACK1
CPU-RD
CPU-RD
CPU-UCAS
CPU-UCAS
CPU-LCAS
CPU-LCAS
CLOCK-OUT
CLOCK-OUT
DSP-INT
DSP-INT
DSP-INT1
DSP-INT1
RESET
RESET
CPU-WAIT
CPU-WAIT
CPU-INT
CPU-INT
CS5
CS5
CS3
CS3
CS2
CS2
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
27
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