Troubleshooting
45
VTM-D15/A 15" MultiMedia Touch Panel Systems
Troubleshooting

Display Troubleshooting

Match the symptom below that best describes your problem.

Troubleshooting

No Picture/LED Power Indicator is not lit • Check that there is electrical power coming from the power
outlet. Use another device that you know works to check for
power.
• Check that the power cord is properly connected to the power
adapter.
• Check that the power adapter is properly connected to the
display.
• Check that the power switch of display is turned on.
No Picture/LED Power Indicator is orange • Check that the video signal cable is properly connected.
• Check that the power switch of your computer or video source is
in the “ON” position.
• Ensure the computer is not in power saving mode. (Move the
mouse or press a key on the keyboard to wake up the
computer.)
Text is not solid • Change the resolution of the video signal to 1024 x 768 and
press the AUTO button on the front of the panel to run the auto
adjustment feature.
• Adjust the Clock and Phase in the OSD menu to fine tune.
• Adjust Sharpness in the OSD menu.
Screen image is not centered/some
lines are missing
• Adjust H. Position and V. Position to fine tune.
• Press the AUTO button on the front of the panel to run the auto
adjustment feature.
Red, Green, Blue, or Black dots on
the screen
• Some stationary “always ON” red, green, or blue dots may
appear on the monitor. These are called bright pixels and can
happen with any LCD panel.