Panasonic SX-PR703 Service Manual page 103

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 220
P
R315 220
Q
GND VCC
1 2 3 4 5
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 19
43
S 18
2
R 3 17
Q 34 16
P 35 15
O 14
36
N 13
37
M 38 12
L 39 11
K 40 10
J 9
41
I 8
42
H 4 7
G 5 6
F 6 5
E 4
7
D
8 3
C 9 2
B 10 1
A 11 0
VSS VSS
13
R316
220
C316
0.1
23
VCC BYTE
V 1 21
IC305
QSIGX3C64009
U 44 20
(64M BIT MASK ROM)
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
+3.3D
IC306
QSIGX3C64012
JP302
(64M BIT MASK ROM)
33
CE 12 A V
U
T
14
DE
S
R
Q
15 31 P P
14 O O
29
13 N N
27
12 25 M M
11 22 L L
AD 10 20 K K
9 J J
18
DT
8 I I
16
7 30 H H
6 28 G G
5 26 F F
4 E E
24
D D
3 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
14 T
DE
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
C317
0.1
23 33
VCC BYTE
1 21 CE 12 B
44 20
19
43 14
DE
18
2
3 17
34 16
35 15 15 31 P
14 14 O
36 29
13 13 N
37 27
38 12 12 25 M
39 11 11 22 L
40 10 AD 10 20 K
9 9 J
41 18
DT
8 8 I
42 16
4 7 7 30 H
5 6 6 28 G
6 5 5 26 F
4 4 E
7 24
D
8 3 3 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 14
DE
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
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