Casio XJ-H1600 User Manual page 28

To restore all settings on the setup menu to their initial factory defaults
1.
Press the [MENU] key to display the setup menu.
2.
Use the [ ] key to select "Restore All Defaults" and then press the [ENTER] key.
3.
After confirming that "Restore All Defaults" sub-menu is selected, press the
[ENTER] key.
This displays a confirmation message asking if you want to initialize all settings.
4.
Use the [ ] key to select "Yes".
5.
To restore all settings on the setup menu to their initial defaults, press the
[ENTER] key.
This will restore all of the settings to their initial factory defaults, except for the Language,
Light Time, Unit Operating Time and password settings.
To exit the operation without doing anything, press [ESC] instead of [ENTER].
6.
After you are finished, press the [MENU] key to exit the setup menu.
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