Technics SX-PR1000 Service Manual page 105

SCHEMATIC DIAGRAM-14
+3.3D C306
0.1
1 GND
2 GND
3 KS0
4 KS1
5 KS2
6 KS3
7 KF0
8 KF1
9 KF2
10 KF3
11 KB0
12 KB1
13 KB2
14 KB3
15 KB4
16 RD7
Z308
17 RD8
+3.3D
4.7Kx4
18 RD6
19 RD1
20 RD5
Z309
21 RD2
4.7Kx4
22 RD4
23 RD3
24 RDQM
25 RWE
26 GND
27 VDD
28 RCLK
C304
29 RCAS
0.1
30 RRAS
31 RCS
32 RBS
33 RA9
34 RA10
35 RA8
36 RA0
37 RA7
38 RA1
39 RA6
40 RA2
41 RA5
42 RA3
43 RA4
44 MSET1
45 MSET2
46 SCK3I
47 GND
48 X0
R303
49 X1
1M
50 VDD
51 GND
52 GND
R302
47
X301
16.93MHz
C305
0.1
C302 C303
10P 10P C307
0.1
2 TG CLOCK
A
B A
C B A
IC301
D82398GD001
(TONE GENERATOR LSI)
B C D f e d c b a Z Y X W V U T S R
IC302
T7SZ32FUT85L
I B J C K D L E M F N G O H P
(2 INPUT OR GATE)
1 2 3 4 5
Q
Q P O N M L K J I T V U
SX-PR1000 MAIN 4/4 SCHEMATIC DIAGRAM
GND VCC
R313
470
+3.3D
C311 C309
0.1 0.1
C313
0.1
GND 156
GND 155
WCEY1 154
WCEY0 153
WAY0 152
WAY1 151
WAY2 150
WAY3 149
WAY4 148
WAY5 147
WAY6 146
WAY7 145
WAY17 144
WAY18 143
WAY20 142
WAY21 141
GND 140
WAY19 139
WAY8 138
WAY9 137
WAY10 136
WAY11 135
WAY12 134
WAY13 133
WAY14 132
GND 131
VDD 130
WAY15 129
WAY16 128
WAY22 127
C314
WAY23 126
0.1
WAY24 125
WRASX 124
WOEX 123
VDD 122
GND 121
WCEX3 120
WCEX2 119
WCEX1 118
WCEX0 117
WAX0 116
WAX1 115
WAX2 114
WAX3 113
WAX4 112
WAX5 111
WAX6 110
109
WAX7
WAX17 108
WAX18 107
GND 106
GND 105
C312
0.1
S R