Dell SE3223Q - Safety Related Issues; Intermittent Problems

64 │ Troubleshooting
Common
Symptoms
What you
experience
Possible Solutions
Horizontal or
vertical lines
Screen has one or
more lines
• Reset the monitor to factory settings
(Factory Reset).
• Perform monitor self-test feature check
and determine if these lines are also in
self-test mode.
• Check for bent or broken pins in the
video cable connector.
• Run the built-in diagnostics.
Synchronization
problems
Screen is
scrambled or
appears torn
• Reset the monitor to factory settings
(Factory Reset).
• Perform monitor self-test feature check
to determine if the scrambled screen
appears in self-test mode.
• Check for bent or broken pins in the
video cable connector.
• Restart the computer in the safe mode.
Safety related
issues
Visible signs of
smoke or sparks
• Do not perform any troubleshooting
steps.
• Contact Dell immediately.
Intermittent
problems
Monitor
malfunctions on
and off
• Ensure that the video cable connecting
the monitor to the computer is
connected properly and is secure.
• Reset the monitor to factory settings
(Factory Reset).
• Perform monitor self-test feature check
to determine if the intermittent problem
occurs in self-test mode.
Missing color Picture missing
color
• Perform monitor self-test feature check.
• Ensure that the video cable connecting
the monitor to the computer is
connected properly and is secure.
• Check for bent or broken pins in the
video cable connector.