A P P E N D I X
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15
Troubleshooting
Warning : This section will try to anticipate potential problems that you may
encounter in the day-to-day use of your monitor.
If after trying the suggested solutions, your monitor’s symptom
remains the same, contact your authorized service center.
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Troubleshooting problems
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Problems
Corrective Actions
LED ON
• Using OSD, adjust Brightness and Contrast to
maximum or reset to their default settings.
LED OFF
• Check the power switch.
• Check if the AC power cord is properly
connected to the AC adapter.
No Picture
LED Blinking
• Check if video signal cable is properly
connected at the back of monitor.
• Check if the power to computer system is ON.
Display is not clear
• Adjust the Frequency and Phase settings.
Too light or too dark
• Adjust the Brightness and Contrast settings.
Image is not centered
• Adjust the Horizontal and Vertical position
settings using the OSD.
Out of Range
• Check the maximum resolution and the
frequency on the video port of your computer.
Picture is scrambled
• Check the signal cable connection between
the computer and monitor.
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