Common Problems - Dell SE3223Q 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 or
power LED off
No video or
power LED on
Poor focus
│
62 Troubleshooting
What you
experience
No picture
No picture or no
brightness
Picture is fuzzy,
blurry, or ghosting
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 pressed.
• Ensure that the correct input source
is selected through the
menu.
• Increase brightness and contrast
controls using the 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 through the
menu.
• Eliminate video extension cables.
• Reset the monitor to factory settings
(Factory Reset).
• Change the video resolution to the
correct aspect ratio.
Input Source
Input Source