User's Manual

Page 13
15 inch XGA TFT LCD Color Monitor
9. Troubleshooting
Warning
Please do not open the monitor, because it may cause electric shock to the
customer. Also, the warranty program may not support the damages, which user
causes. When problem persists in spite of trying the following
troubleshooting advice, please contact dealer or the repair center listed.
Any changes or modifications not expressly approved by the
manufacturer could void the user’s authority to operate the
equipment.
Trouble and countermeasure
LED doesn’t lit / No image
Check if the display is in power saving mode.
Check if the display is switched on or the power cable is properly connected.
Image is unstable (Flicker, Interference, Noise, etc.)
Check if signal cable is secured
Check if frame (vertical) frequency of video signal is lower than 75Hz because
this monitor can not run over 75Hz. In this case, please change the setting of
‘Display Control Panel’ of Windows to 60Hz, that displays the best performance.
Dull image
Adjust the Frequency or Phase.
Adjust the frame (vertical) frequency to 60Hz.
Remove any video signal distributor.
Dark or saturated image
Adjust the Brightness or Contrast.