Casio fx-CG50 Hardware User's Manual page 16

u To replace the batteries
Important!
• Never turn on the calculator while the batteries are removed or not loaded correctly. Doing
so can cause memory data to be deleted and malfunction of the calculator. If mishandling
of batteries causes such problems, correctly load batteries and then perform the restart
operation to resume normal operation.
• Be sure to replace all four batteries with new ones.
• After replacing batteries, check to make sure that battery settings are configured correctly.
1. Press !o(OFF) to turn off the calculator.
Warning!
• Be sure to turn the calculator off before replacing batteries. Replacing batteries with power
on will cause data in memory to be deleted.
2. Making sure that you do not accidentally press the o key, attach the front cover to the
front of the calculator and then turn it over.
3. Remove the battery cover from the calculator by pulling with your finger
at the point marked 1.
4. Remove the four old batteries.
5. Perform steps 2 through 13 of the procedure under "Before Using the
Calculator for the First Time..." on page EN-3.
k About the Auto Power Off Function
Calculator power turns off automatically if you do not perform any operation within the Auto
Power Off trigger time you specify. You can specify either approximately 10 minutes or
approximately 60 minutes as the trigger time (see "Power Properties Settings" on page 12-2 in
the separate Software User's Guide). To restore power, press o.
Note
Any data in calculator main memory (ongoing calculation operation, ongoing graphing
operation data, etc.) is retained for approximately 60 minutes when power is turned off
manually or by Auto Power Off. This means the data will be restored if you turn the calculator
back on within about 60 minutes after it is turned off. If you turn the calculator back on after 60
minutes, main memory data is cleared and the initial screen of the mode you were in when you
turned off the calculator will appear on the display. Storage memory contents are unchanged.
EN-14
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