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tater
6/POWER SOURCE
fx-115s/991s
The CASIO TWO WAY
POWER
system makes it
possible to operate calculators even in Semper
darkness.
*This unit retains memory contents no matter what the
light conditions.
*This unit uses two power sources: a solar cell, and
a single G13 Type (SR44 or LR44) battery!"
*A weakened:battery is indicated when. the memory
contents spontaneously clear or when the display dar-
kens under poor light conditions and cannot be re- .
stored by pressing the (4) key."
" .
oe
*To ensure proper operation the battery should be —
replaced once every three years no ) matter how much
the unit is used.
fx-100s/ 570s
The fx-100s powered by one AA size manganese
dry |
battery (R6P (SUM-3) or UM-3). The fx-570s powered |
by a single
G13 type (SR44 or LR44) battery, As bat- |
tery power weakens, the characters on the display be-
come dim and difficult to read. When this happens,
replace ne battery as soon as: posse:
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ae
* Be sure to replace the battery at. least once.every two
years, regardless of how much the-calculatoris used
| during that time. An old battery may leak, 'seriously | |
inportait!
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i
i
;
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- damaging the interior of.the calculator.: ;| - : <<
* Theibattery: that comes installed .in;the- © Iculator
when you edict it is for factory test
rposes, |
ifes
* Alldata stored i in the memory of the calcula or-is fost [
' when you replace the battery; Be suré.to Make a note
-!of.any important data: before; AOU replage
the, battery.
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MiTo Replace Batteries
ed,
ae
fx-115s/570s/991s
—
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gine spo
1. Press @) to switch power off.' " (£-570s) a et
2. Remove the screws that hold the back [cover in
place, and then remove the cover.
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Note
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*Keep batteries out of the reach of small aiden. :
lf swallowed, - CORE
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