Casio SF-6990 Manuale Utente

PART 2

Operation Reference

E

After batteries are loaded, use the following procedures to set up the SF Unit for
operation.

1. Press 

to switch power on.

• The initial screen for the mode that was selected when you last switched

power off appears on the display.

• If the message shown on page 13 appears on the display, follow the

procedures described on page 14.

• If a low battery power message appears on the display or if the display

remains blank when you turn power on, replace batteries as soon as
possible.

2. Press 

again to switch power off.

The SF Unit is equipped with an Auto Power Off function that switches power off
automatically whenever you do not perform any key operation for about six
minutes. To restore power, press 

.

Pressing 

 causes the backlight to turn on for about 8 seconds, and then turn

off automatically.
Leaving the backlight on for long periods greatly reduces battery life!
You can manually turn the backlight off by pressing 

 again.

Failure of the backlight to turn on indicates low battery power. Replace batteries
as soon as possible.