90 | Troubleshooting
Common problems
The following table contains general information about common monitor
problems that you might encounter and the possible solutions:
Common
symptoms
What you
experience
Possible solutions
No video/power
LED off
No picture • Ensure that the video cable
connecting the monitor and the
computer is properly connected and
secure.
• Verify that the power outlet is
functioning properly using any other
electrical equipment.
• Ensure that you have pressed the
power button properly.
• Ensure that the correct input source
is selected in the Input Source
menu.
No video/power
LED on
No picture or no
brightness
• Increase brightness and contrast
controls in the Brightness/Contrast
menu.
• Perform monitor self-test feature
check.
• Check for bent or broken pins in the
video cable connector.
• Run the built-in diagnostics. For
more information, see Self-
Diagnostic.
• Ensure that the correct input source
is selected in the Input Source
menu.
Poor focus Picture is fuzzy,
blurry, or ghosting
• Eliminate video extension cables.
• Reset the monitor to factory settings.
For more information, see Factory
Reset.
• Change the video resolution to the
correct aspect ratio.
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