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Troubleshooting | 49
The test is complete when the text screen appears. To exit, press Button 4 again.
If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the
monitor is functioning properly. Check the video card and computer.
Common Problems
The following table contains general information about common monitor problems 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 the power button is depressed fully.
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 & contrast controls via OSD.
Perform monitor self-test feature check.
Check for bent or broken pins in the video cable connector.
Run the built-in diagnostics.
Ensure that the correct input source is selected in the
Input
Source
menu.
Poor Focus Picture is fuzzy,
blurry, or
ghosting
Perform Auto Adjust via OSD.
Adjust the Phase and Pixel Clock controls via OSD.
Eliminate video extension cables.
Reset the monitor to factory settings.
Change the video resolution to the correct aspect ratio.
Shaky/Jittery
Video
Wavy picture or
fine movement
Perform Auto Adjust via OSD.
Adjust the Phase and Pixel Clock controls via OSD.
Reset the monitor to factory settings.
Check environmental factors.
Relocate the monitor and test in another room.
Missing Pixels LCD screen has
spots
Cycle power On-Off.
Pixel that is permanently Off is a natural defect that can
occur in LCD technology.
For more information on Dell Monitor Quality and Pixel
Policy, see Dell Support site at: http://www.dell.com/
support/monitors.
49


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