Technics SX-PR603 Service Manual page 107

SCHEMATIC DIAGRAM-15
Z326
470x4
B
A
A
Z318
B
470x4
C
D
E
Z319
F
470x4
G
H
R
Z320
S
470x4
U
V
T
Z321
I
470x4
J
K
L
Z322
IC303
M
470x4
T7SZ32FUT85L
N
(2 INPUT OR GATE)
O
R314 470
P
R315 470
Q
GND VCC
1 2 3 4 5
Z323
470x4
B
A
A
Z324
B
470x4
C
D
E
Z325
F
470x4
G
H
+5D
JP301
C315
0.1
IC304
23
QSIGX3C64014
(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
470
C316
0.1
23
VCC BYTE
V 1 21
IC305
QSIGX3C64013
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
JP302
33
CE 12 A
14
DE
15 31 P
14 O
29
13 N
27
12 25 M
11 22 L
AD 10 20 K
9 J
18
DT
8 I
16
7 30 H
6 28 G
5 26 F
4 E
24
D
3 21
2 19 C
1 17 B
0 15 A
32
33
CE 12 A
14
DE
15 31 P
14 29 O
13 N
27
12 25 M
11 22 L
AD 10 20 K
9 18 J
DT
8 I
16
7 30 H
6 28 G
5 26 F
4 24 E
3 D
21
2 19 C
1 17 B
0 15 A
32