Casio SF-4400 Service Manual & Parts List

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VSS
VDD
VDD
VDD
–V
DET
+VDET
OUT
GND
V
IN
VREF
RA
RB
1
2
3
RI
+
–
1
2
3
VDD
OUT
VSS
6-3. VOLTAGE REGULATOR: S-81253SGUP (REG1)
Output Voltage (Vout) : 5.3V ± 5%
6-4. VOLTAGE DETECTOR: S-80752AN (DET1)
Detection Voltage(–VDET) : 5.2V ± 2.5%
[5.07V (MIN) ~ 5.33V (MAX)]
Input voltage Output voltage
>5.2V 5V
<5.2V 0V
2
Vin
1
Vout
3
GND
1
GND
2
Vin
3
Vout

Casio SF-4400 Specifications

General

Brand	Casio
Model	SF-4400
Category	Calculator
Language	English