Common Problems - Dell U3224KBA User Manual

Common Problems

The following table contains general information about common monitor problems you
might encounter and the possible solutions:
Common
Symptoms
No Video/
Power LED off
No Video/
Power LED on
Missing Pixels
Stuck-on Pixels LCD screen has
108 | Troubleshooting
What you
experience
No picture
No picture or no
brightness
LCD screen has
spots
bright spots
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 Input Source
• 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 Input Source
• 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: www.dell.com/
https://
pixelguidelines.
• 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: www.dell.com/
https://
pixelguidelines.
menu.
menu.