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b. Insert a new CR2032 lithium battery. Make sure its positive (+) side is
facing up.
c. Replace the plate and push it to the original place.
After installing the batteries, press $ to turn the power on.
Warning: When the low battery icon is displayed, you need to replace the
batteries as soon as possible. However, avoid removing the backup battery
and main batteries at the same time to avoid data lost.
Turning the calculator on and off
The $ key is located at the lower left corner of the keyboard. Press it
once to turn your calculator on. To turn the calculator off, press the right-
shift key
@ (first key in the second row from the bottom of the keyboard),
followed by the
$ key. Notice that the $ key has a OFF label printed
in the upper right corner as a reminder of the OFF command.
Adjusting the display contrast
You can adjust the display contrast by holding the $ key while pressing
the
+ or - keys.
The $(hold) + key combination produces a darker display
The $(hold) - key combination produces a lighter display