Technics SX-PR1000 Service Manual page 106

SCHEMATIC DIAGRAM-15
Z326
220x4
B
A
A
Z318
B
220x4
C
D
E
Z319
F
220x4
G
H
R
Z320
S
220x4
U
V
T
Z321
I
220x4
J
K
L
Z322
IC303
M
220x4
T7SZ32FUT85L
N
(2 INPUT OR GATE)
O
R314 470
P
R315 470
Q
GND VCC
1 2 3 4 5
+3.3D
Z323
220x4
B
A
A
Z324
B
220x4
C
D
E
Z325
F
220x4
G
H
+5D
JP301
C315
0.1
IC304
23
QSIGX3C64010
(64M BIT MASK ROM)
VCC BYTE
V 1 21
U 44 20
T 43 19
S 18
2
R 3 17
Q 34 16
P 35 15
O 36 14
N 13
37
M 38 12
L 39 11
K 40 10
J 41 9
I 8
42
H 4 7
G 5 6
F 6 5
E 7 4
D 3
8
C 9 2
B 10 1
A 11 0
VSS VSS
13
R316
470
C316
0.1
23
VCC BYTE
V 1 21
IC305
QSIGX3C64009
U 44 20
(64M BIT MASK ROM)
T 43 19
S 2 18
R 17
3
Q 34 16
P 35 15
O 36 14
N 37 13
M 12
38
L 39 11
K 40 10
J 41 9
I 42 8
H 7
4
G 5 6
F 6 5
E 7 4
D 8 3
C 2
9
B 10 1
A 11 0
VSS VSS
13
+3.3D
IC306
QSIGX3C64012
JP302
(64M BIT MASK ROM)
33
CE 12 A V
U
DE 14 T
S
R
Q
15 31 P P
14 29 O O
13 N N
27
12 25 M M
11 22 L L
AD 10 20 K K
9 18 J J
DT
8 I I
16
7 30 H H
6 28 G G
5 26 F F
4 24 E E
3 D D
21
2 19 C C
1 17 B B
0 15 A A
32
IC307
33
QSIGX3C64011
(64M BIT MASK ROM)
CE 12 A V
U
DE 14 T
S
R
Q
15 31 P P
14 29 O O
13 27 N N
12 M M
25
L
11 22 L
AD 10 20 K K
9 18 J J
DT
8 16 I I
7 H H
30
G
6 28 G
5 26 F F
4 24 E E
3 21 D D
2 C C
19
B
1 17 B
0 15 A A
32
SX-PR1000
MAIN 4/4 SCHEMATIC DIAGRAM
C317
0.1
23 33
VCC BYTE
1 21 CE 12 B
44 20
43 19 DE 14
18
2
3 17
34 16
35 15 15 31 P
36 14 14 29 O
13 13 N
37 27
38 12 12 25 M
39 11 11 22 L
40 10 AD 10 20 K
41 9 9 18 J
DT
8 8 I
42 16
4 7 7 30 H
5 6 6 28 G
6 5 5 26 F
7 4 4 24 E
3 3 D
8 21
9 2 2 19 C
10 1 1 17 B
11 0 0 15 A
VSS VSS
13 32
C318
0.1
23 33
VCC BYTE
1 21 CE 12 B
44 20
43 19 DE 14
2 18
17
3
34 16
35 15 15 31 P
36 14 14 29 O
37 13 13 27 N
12 12 M
38 25
39 11 11 22 L
40 10 AD 10 20 K
41 9 9 18 J
DT
42 8 8 16 I
7 7 H
4 30
G
5 6 6 28
6 5 5 26 F
7 4 4 24 E
8 3 3 21 D
2 2 C
9 19
B
10 1 1 17
11 0 0 15 A
VSS VSS
13 32