Technics SX-PR950P, Service Manual, Page: 90 / 114

g
IC18
D(16)
D(17)
D(18)
D(19)
D(20)
D(21)
15
12
10
7
5
2
GND
VCC
16
8
9
1
14
13
11
6
4
3
CLOCK
RESET
D6
D5
D4
D3
D2
D1
Q6
Q5
Q4
Q3
Q2
Q1
GND
A2
A1
A0
SDA
SCL
WP
VCC
4
3
2
1
5
6
7
8
(EEPROM(2K))
IC23
(D TYPE FLIPFLOP)
C0JBAF000232
IC21
(D TYPE FLIPFLOP)
C0JBAF000232
IC22
(DUAL 2 INPUT OR GATE)
IC18
IC18
D(16)
D(17)
D(18)
D(19)
D(20)
D(21)
VCC
GND
Q6
Q5
Q4
Q3
Q2
Q1
CLOCK
RESET
D6
D5
D4
D3
D2
D1
8
16
15
12
10
7
5
2
9
1
14
13
11
6
4
3
REAL.SDA
4.7K
R47
4.7K
R46
C36 0.1
+3.3D
PORT.EX3
DAC.MD
DAC.MC
0.1
C38
DAC.ML
USB.MSL
USB.WAITM
REAL.SCL
+3.3D
DSP.INT
DSP.RST
DSP.CS
DSP.INT3
+3.3D
VCC
GND
+5D
PORT.EX2
C3ABMG000166
IC11
(16M DRAM)
IC12
RFKFXPR950 *1
(32M FLUSH ROM)
(16M DRAM)
C3ABMG000166
IC10
0
R44
0
R43
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
D(8)
D(9)
D(10)
D(11)
D(12)
D(31)
D(29)
D(28)
D(27)
D(26)
D(25)
D(24)
D(23)
D(22)
D(21)
D(20)
D(19)
D(18)
D(17)
D(16)
D(15)
D(30)
D(14)
D(13)
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
D(8)
D(9)
D(10)
D(11)
D(12)
D(13)
D(14)
D(15)
D(16)
D(17)
D(18)
D(19)
D(20)
D(21)
D(22)
D(23)
D(24)
D(25)
D(26)
D(27)
D(28)
D(29)
D(30)
D(31)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
A(21)
A(22)
A(20)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
A(20)
A(21)
A(22)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
VSS VSS VSS
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NC
NC
NC
NC
NC
0
1
2
3
4
5
6
7
8
9
10
11
W
RAS
OE
BCAS
VSS VSS
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
WE
OE
CE
ACC
NC
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
RY/BY
RESET
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
WE
DE
CE
ACC
NC
VSS VSS
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
RY/BY
RESET
VSS VSS VSS
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NC
NC
NC
NC
NC
0
1
2
3
4
5
6
7
8
9
10
11
W
RAS
DE
BCAS
LCAS
31
39
35
38
40
42
44
30
32
34
36
39
41
43
45
11
28
26
14
13
25
24
23
22
21
20
19
10
8
7
6
5
4
3
2
1
40
17
16
9
10
15
12
2
3
4
5
7
8
9
10
41
42
43
44
46
47
48
49
21
22
23
24
27
28
29
30
31
32
20
19
46 27
29
31
33
35
38
40
42
44
30
32
34
36
39
41
43
45
11
28
26
14
13
15
12
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
40
17
16
9
10
+3.3D
AD DT
BYTE VCC
29
37 47
27 45
C31 0.1
+3.3D
AD DT
VCC BYTE
47 37
C30 0.1
+3.3D
AD DT
VCC VCC
LCAS
VCC
35
34
33
18
17 11
15
16
36
40
1 6 25
26 45 50
C29 0.1
+3.3D
AD DT
VCC VCC VCC
49
48
47
46
44
43
42
41
10
9
8
7
5
4
3
2
19
20
32
31
30
29
28
27
24
23
22
21
35
34
33
18
17 11
15
16
36
40
1 6 25
26 45 50
IC13
RFKFXPR950 *1
(32M FLUSH ROM)
C35 0.1
C3ZBP0000006
IC14
(64M FLUSH ROM)
10K
R10
D(16)
D(17)
D(18)
D(19)
D(20)
D(21)
D(22)
D(23)
D(24)
D(25)
D(26)
D(27)
D(28)
D(29)
D(30)
D(31)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
A(20)
A(21)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
WE
DE
CE
ACC
VSS VSS
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
RESET
46 27
29
31
33
35
38
40
42
44
30
32
34
36
39
41
43
45
11
28
26
14
15
13
12
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
40
17
16
9
10
C32 0.1
+3.3D
AD DT
VCC
BYTE
47 37
A(22)
RY/BY
2.2K
R48
3.3K R45
TC7W32FUTL
TC7W32FUTL
C0JBAE000098
C3EBDC000020
SCHEMATIC DIAGRAM-2
SX-PR950 MAIN 1/4 SCHEMATIC DIAGRAM (2/2)
*1: Part No. "RFKFXPR950" contains IC12 and IC13.