Common Problems - Dell C6522QT User Manual

Common problems

The following table contains general information about common display problems you
might encounter and the possible solutions:
Common
Symptoms
No Video/
Power LED off
No Video/
Power LED on
Poor Focus
Shaky/Jittery
Video
Missing Pixels
What You Possible Solutions
Experience
No picture • Ensure that the video cable connecting the
• Verify that the power outlet is functioning
• Ensure that the power button is depressed
• Ensure that the correct input source is selected
No picture or no • Increase brightness & contrast controls via
brightness
• Perform display self-test feature check.
• Check for bent or broken pins in the video
• Run the built-in diagnostics.
• Ensure that the correct input source is selected
Picture is • Eliminate video extension cables.
fuzzy, blurry, or
• Reset the display to factory settings.
ghosting
• Change the video resolution to the correct
Wavy picture or • Reset the display to factory settings.
fine movement
• Check environmental factors.
• Relocate the display and test in another room.
LCD screen has • Cycle power on-off.
spots
• Pixel that is permanently off is a natural defect
• For more information on Dell Display Quality
display and the computer is properly connected
and secure.
properly using any other electrical equipment.
fully.
in the Input Source
OSD.
cable connector.
in the Input Source
aspect ratio.
that can occur in LCD technology.
and Pixel Policy, see Dell Support site at:
http://www.dell.com/support/monitors.
menu.
menu.
Troubleshooting | 65