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Common Problems
The following table contains general information about common monitor problems you
might encounter and the possible solutions:
Common
What you
Symptoms
experience
No Video/
No picture
Power LED o
No Video/
No picture or no
Power LED on
brightness
Missing Pixels
LCD screen has
spots
Stuck-on Pixels LCD screen has
bright spots
Brightness
Picture too dim or
Problems
too bright
Safety Related
Visible signs of
Issues
smoke or sparks
6. Trouble Shooting Instructions
Possible solutions
• 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
• Increase brightness and 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
• Cycle power on-o .
• Pixel that is permanently o 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:
https://
• Cycle power On-O .
• Pixel that is permanently o is a natural
defect that can occur in LCD technology.
• For more information on Dell Monitor Quality
and PixelPolicy, see Dell Support site at:
https://
• Reset the monitor to factory settings.
• Adjust brightness and contrast controls via
OSD.
• Do not perform any troubleshooting steps.
• Contact Dell immediately.
Input Source
Input Source
www.dell.com/pixelguidelines.
www.dell.com/pixelguidelines.
menu.
menu.
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