Casio ZD-3 Service Manual page 44

IC102: TC74VHCT541AFT
20 11
1 10
V G2
CC
20 19
1 2
G1 A1
IC201: AN8814SB-E1
28 22 21 15
1 7 8 1 4
PV 1 VO 1+
CC
20 18
1/2
21
PV
CC
6
4 Direction
Detect
5
1
3.3V
2
REG
19 23
PGND 1 IN 1
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Y1 Y2
18 17
3 4
A2 A3
VO 1- VO 2+ VO 2-
17 16 15
Direction
Detect
24 25 26
PC 1 IN 2 PC 2
42
Y3 Y4 Y5
16 15 14
5 6 7
A4 A5 A6
VO 3+ VO 3- VO 4+ VO 4-
14 13 12
Direction Direction
Detect Detect
27 28
IN 3 IN 4
Y6 Y7 Y8
13 12 11
8 9 10
A7 A8 GND
PV 2
CC
11 9
1/2
8
PV
CC
V
CC
7 V
Detect
CC
Thermal
Protect
FIN GND
Circuit
22 V
REF
10
PGND 2