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Casio FX570ES Manual

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E-71
(1) Check the calculation expression to make sure that it does not contain any
errors.
(2) Make sure that you are using the correct mode for the type of calculation you
are trying to perform.
(3) If the above steps do not correct your problem, press the O key. This will
cause the calculator to perform a routine that checks whether calculation
functions are operating correctly. If the calculator discovers any abnormality,
it automatically initializes the calculation mode and clears memory contents.
For details about initialized settings, see “Initializing the Calculation Mode
and Other Settings” under “Calculation Modes and Calculator Setup”.
(4)Initialize all modes and settings by performing the following operation:
19(CLR) 1(Setup) =(Yes).
Reference
k Power Requirements and Battery
Replacement
This calculator is powered by a single AAA-size battery (R03 (UM-
4)).
Replacing the Battery
Dim figures on the display of the calculator indicate that battery power
is low. Continued use of the calculator when the battery is low can
result in improper operation. Replace the battery as soon as possible
when display figures becomes dim.
Even if the calculator is operating normally, replace the battery at
least once every two years.
Important!
• Removing the battery from the calculator causes independent
memory contents and values assigned to variables to be cleared.
1 Press 1A (OFF) to turn off the
calculator.
2 On the back of the calculator, remove
the screws and the back cover.
3 Remove the old battery.
4 Load a new battery into the calculator
with its positive
k
and negative
l
ends facing correctly.
5 Replace the back cover and secure it
in place with its screws.
6 Perform the following key operation:
O19(CLR)3(All)=(Yes).
•Make sure you perform the above key operation. Do not skip it.
ScrewScrew
… 73


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Others manual(s) of Casio FX570ES

Casio FX570ES User Manual - German - 88 pages

Casio FX570ES User Manual - French - 75 pages


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