Casio fx-7400G - Manual (Page 12)

12
Chapter 1 Getting Acquainted
7. When you keep having problems…
If you keep having problems when you are trying to perform operations, try the fol-
lowing before assuming that there is something wrong with the calculator.
k k k k k Get the Calculator Back to its Original Mode Settings
1. In the Main Menu, select the RUN icon and press w.
2. Press ! Z to display the Set Up Screen.
3. Highlight “Angle” and press 2 (Rad).
4. Highlight “Display” and press 3 (Norm) to select the exponential display range
(Norm 1 or Norm 2) that you want to use.
5. Now enter the correct mode and perform your calculation again, monitoring the
results on the display.
k k k k k Low Battery Message
The low battery message appears while the main battery power is below a certain
level whenever you press o to turn power on or m to display the Main Menu.
o or m
↓
About 3 seconds later
If you continue using the calculator without replacing batteries, power will automati-
cally turn off to protect memory contents. Once this happens, you will not be able to
turn power back on, and there is the danger that memory contents will be corrupted
or lost entirely.
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