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48 | Touchscreen Troubleshooting
Medical Devices -Touch Controller
Touchscreen Troubleshooting
Table 13. Touchscreen Troubleshooting
PROBLEM
POSSIBLE CAUSE
SOLUTION
Screen red/
black/white
colour
Electrical parts disconnected.
Contact Technical Support.
External electromagnetic fields.
Spikes surge.
Icons do not
react to
commands or
perform different
functions
Improper use of screen with pens and pins,
screen marked or spoiled.
Use stylus for touch screens.
Icons are touched too fast (multitouch).
The screen does not support
multitouch – touch icons more slowly.
Unbalanced screen.
Contact Technical Support.
System stuck in
“starting system”
mode
O.S. files damaged by power surges.
Contact Technical Support.