Casio ZD-1 Service Manual page 38

IC404: PQ15RW11
1 2 3 4
IC501: S-81340HG-KJ-T1
V
1 2 3
IC502: TC7WU04FU-TE12L
8 5
1 4
1
Vin
3
GND
3
IN
Vref
V Out 1
CC
8 7
1 2
In 1 Out 2
2
Vo
IC
Vadj
4
*Parasitic
Diode
2
GND
In 2 Out 3
6 5
3 4
In 3 GND
36
1 V
OUT