Casio CASSIOPEIA A-20 User Manual

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Setting Connect the items as
shown.
VDET1 OFF
VDET2 OFF
VDET1R OFF
VDET2R (indefinite)
VDET3 OFF
VDETS ON
Recharge OFF
CHKPRG OFF
AC Adapter USED
Cover CLOSED
CardLock CLOSED
Cradle NOT STAY
ENTER, 7, 1
Put power supply voltage
down by degrees.
VDET1 ON
VDET2 OFF
Measure the voltage that
VDET1 becomes ON.
VDET1 = 2.0 V ± 5 %
Put power supply voltage
down by degrees.
VDET1 ON
VDET2 ON
Measure the voltage that
VDET2 becomes ON.
VDET2 = 1.6 V ± 1 %
VDET1
VDET2
Voltage Detectors Check
Check the following detectors;
VDET1: Low battery message detector for alkaline batteries.(2.0 V ± 1 %)
VDET2: Foced power off detector for alkaline batteries.(1.6V ± 1 %)
VDET1R: Low battery message detector for rechargeable battery.(3.3 V ± 2 %)
VDET2R: Foced power off detector for rechargeable battery.(3.0 V ± 2 %)
VDETS: Low battery message detector for back-up battery.(2.7 V ± 1 %)
Vb = 2.6 ± 0.02 V
Step
Operation Display (Wiring) Note
V
-
+
A-20
ChargerAC adapter
Vb
Alkaline battery terminal

Casio CASSIOPEIA A-20 Specifications

General

Brand	Casio
Model	CASSIOPEIA A-20
Category	Handhelds
Language	English