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Operation
Problem: Nothing happens when you tap the screen.
Possible Causes
1. Battery power is low.
2. Exposure of the PV Unit to some
external condition is interfering with
proper operation.
3. The touch screen is damaged.
Problem: Power suddenly turns off or contrast adjustment screen suddenly appears.
Possible Cause
Battery power is low.
Problem: The functions or cursor movement performed does not match the
location where you tap on the screen.
Possible Cause
The touch screen needs to be calibrated.
Chapter 16 Technical Reference
Recommended Actions
1. Replace batteries (page 21).
2. Press the P button and then the
RESET button. See procedure above.
3. The touch screen must be replaced.
Contact your nearest CASIO dealer
to have the touch screen replaced.
You will be charged for this
replacement.
Recommended Action
Replace batteries (page 21).
Recommended Action
Perform the procedure under
"Calibrating the Touch Screen" on page
161.
181
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