Common Problems - Dell S2422HZ 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
Brightness
problems
Safety-related
issues
72 | Troubleshooting
What you
experience
No picture
No picture or no
brightness
LCD screen has
spots
bright spots
Picture too dim or
too bright
Visible signs of
smoke or sparks
Possible solutions
• Ensure that the video cable connecting the
monitor and the computer is connected
properly and secure.
• Verify that the power outlet is functioning
properly using any other electrical equipment.
• Ensure that the power button is pressed fully.
• Ensure that the correct input source is
selected in the Input Source
• Increase brightness and contrast controls
through 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 about Dell Monitor
Quality and Pixel Policy, see Dell Support site
at www.dell.com/pixelguidelines.
https://
• Cycle power On-Off.
• Pixel that is permanently off is a natural
defect that can occur in LCD technology.
• For more information about Dell Monitor
Quality and Pixel Policy, see Dell Support site
at www.dell.com/pixelguidelines.
https://
• Reset the monitor to factory settings.
• Adjust brightness and contrast controls
through OSD.
• Do not perform any troubleshooting steps.
• Contact Dell immediately.
menu.
menu.