Casio CT-640 User Manual

2. Power Supply
¢ Dry batteries
This unit can be powered by six D size (SUM-I/R20P)
manganese dry cell batteries. Weakened batteries will
result in lower volume or poor tonal quality. The power
indicator lamp will gradually lose its brightness when
battery power weakens. Al this time, change batteries
or shift to one of the allernate power sources men-
tioned below.
Battery replacement:
(1) Open the battery compartment cover on the bottom
of the unit and take out used batteries.
(2) Load new batteries taking care that polarity is correct.
* It is advisable to replace all six batteries at the same time for longer
battery life.
* Standard battery life is approximately 6 hours.
¢ Car battery
With the car battery adaptor (CA55, optional), DC power
is
supplied
from
a
car
battery
through
the
cigarette
lighter socket.
An AC adaptor (AD-5, optional) is required when using
household current. Use only a genuine CASIO adaptor
with the same voltage rating (100, 117, 220, or 240) as the
power supply in your area to prevent component damage.
Plug the AC adaptor into the AC outlet and the cord into
the unit. This will automatically cut off the battery power
supply.
i
i: 1 yj bogr
‘AC adaptor AD-5
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% [o). .:
AC outle
Car battery adaptor CA5

Casio CT-640 Specifications

General

Brand	Casio
Model	CT-640
Category	Musical Instrument
Language	English