Dell P2423D - Page 68

68 │ Troubleshooting
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 &
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.
Wrong Color Picture color not
good
• Try different Preset Modes in Color
settings OSD. Adjust R/G/B value in
Custom Color in Color settings OSD.
• Change the Input Color Format to
RGB or YCbCr in the Color settings
OSD.
• Run the built-in diagnostics.