Elo TouchSystems 1220L, User Manual

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14
Troubleshooting
If you are experiencing trouble with the LCD display, refer to the
following. If the problem persists, please contact your local dealer
or our service center. Please refer to the back cover of this manual
for the phone number of the Elo TouchSystems office nearest you.
Problem: No image appears on screen.
4
Check that all the I/O and power connectors are correctly and
well connected as described in the “ Installation ” section.
4
Make sure the pins of the connectors are not crooked or broken.
Problem: Partial image or incorrectly displayed image.
4
Check to see if the resolution of your computer is higher than that
of the LCD display.
4
Reconfigure the resolution of your computer to less than or equal to 800
x 600.
Problem: Image has vertical flickering line bars.
4
Use “ Frequency ” to make an adjustment.
4
Check and reconfigure the display mode of the vertical refresh
rate of your graphic card to make it compatible with the LCD
display.
Problem: Image is unstable and flickering
4
Use “ Tracking ” to make an adjustment.
Problem: Image is scrolling
4
Make sure the VGA signal cable (or adapter) is well connected.
4
Check and reconfigure the display mode of the vertical refresh
rate of your graphic card to make it compatible with the LCD
display.
Problem: Touch doesn’t work
4
Make sure the touchscreen cable is securely attached at both ends.
Appendices