Turning Power On And Off; About The El Backlight - Casio SF-7200SY User Manual

I Turning Power On and Off
Press ON/OFF to turn power on and off.
Important!
If nothing appears on the display after you load batteries for the first time, press
the RESET button.
If nothing appears after you press the RESET button, it means that no power is
being supplied from the main batteries. Replace the main batteries with new ones
(page 15).
I About the EL backlight
This unit is equipped with an EL backlight that allows easy viewing of display
contents in a theater, or anywhere else where lighting is dim.
Note, however, that frequent or extended use of the EL backlight shortens
battery life.
The following shows how backlight use affects battery life under controlled test
conditions*.
Backlight Operation
3 minutes per hour
15 minutes per hour
* Test Conditions
"Battery Life" is the number of hours before battery failure when the unit is left on
with 5 minutes of a processing operation and 55 minutes of continuous display
only (no processing operation) per hour, plus the backlight operation described
below.
"Backlight Operation" is the number of minutes the backlight is turned on per hour
during the display only (no processing operation) period.
Battery Life
Approximately 120 hours
Approximately 80 hours
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