Dell P2425E - Page 98

98  │  Tro ub lesho oting
Synchronization
problems
Screen is
scrambled or
appears torn
• Reset the monitor to factory settings.
• 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.
• 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
• Change the settings of the Preset
Modes in the Color menu OSD
depending on the application.
• Adjust the R/G/B values under
Custom Color in the Color menu
OSD.
• Change the Input Color Format to
RGB or YCbCr/YPbPr in the Color
settings OSD.
• Run the built-in diagnostics. For more
information, see
Built-in diagnostics.