Chapter 16 Technical Reference
Problem: Nothing appears on the display when power is turned on.
Possible Causes
1.The battery switch on the back of the unit is set to REPLACE BATTERIES.
2.Battery power is low.
3.Display contrast is too light.
4.Screen tap power on feature is turned off.
Display Contrast
Problem: Display is totally black.
Possible Cause | Recommended Action |
Display contrast is too dark. | Adjust display contrast (page 160). |
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Key Tone
Problem: The PV Unit does not beep when you perform an operation.
Possible Cause | Recommended Action |
The key tone is turned off. | Turn on the key tone (page 158). |
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