Power Supply - Casio FX-730P Owner's Manual

1-3 Power Supply
The power supply system for the computer is divided into the main power
supply (two CR2032 lithium batteries) and an auxiliary power supply for
memory backup (one CR1220 lithium battery). If the display contrast remains
weak even after adjustment (see page 9), replace the batteries as soon as possible
because they are becoming exhausted.
Note:
Be sure to replace the batteries every two years regardless of their use in order to
prevent the chance of malfunction due to battery leakage.
• Battery Replacement
I) Switch off the power supply and remove
the rear panel after removing the two
screws.
2) Remove the batteries.
Main batteries:
Remove the battery cover after loosening
the screw®.
Auxiliary battery :
Remove the battery cover after loosening
the screw@.
3) Remove the exhausted batteries. (They can
be removed easily by tapping the battery
compartment with its opening facing
downward.)
4) Wipe the surfaces of new batteries well
with a dry cloth before inserting them with
the EB side up.
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Screw@
Screw®
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5) Press the batteries down with the battery cover and slide the cover to close
the battery compartment.
6) Replace the screws on the rear panel and switch on the power supply.
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