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General Operational Problems
Use this chart when there is a problem, but no error messages occur during power-up
or normal operation.
Problem
Cause
Action
Blank Screen
Power disconnected
Check power supply voltage and
connection integrity
Video cable disconnected
Check video cable and connection
integrity
Line fuse blown
Replace fuse and determine cause
Faulty RAM in host computer
Replace SIMMs
Screen color or picture
is distorted
Video drivers were not loaded
Load correct video drivers
Touchscreen
inoperable
Touchscreen driver changed
Update touchscreen drivers
Controller failed
Call factory
COM2 inoperable
Touchscreen conflict under Windows NT
operating system
Find alternate port for serial device
Troubleshooting
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