Casio ZD-1 Service Manual page 37

IC402: TA8227P
12
7
1 6
B.S. 1
12
Vcc1
1
Vcc2
IC403: BA15218N
1 8
Out 1 Power GND
3 2
30 kΩ
Bias Circuit
Ch 1
45Ω
5
6
In 1 NF 1
1
1 2 3
Out 1 -In 1 +In 1
4
Thermal
Shut Down
Protection
Circuit
9 7
In 2
Ripple
4 5
GND +In 2
35
B.S. 2
OUt 2
11 10
30 kΩ
Ch 2
Pre GND
(F In)
45Ω
8
NF 2
2
6 7 8
-In 2 Out 2 V
CC