Dell S2722QC User Manual page 69

Synchronization
Problems
Safety Related
Issues
Intermittent
Problems
Missing Color
Wrong Color
Screen is
scrambled or
appears torn
Visible signs of
smoke or sparks
Monitor
malfunctions on
and off
Picture missing
color
Picture color not
good
• Reset the monitor to factory settings.
• Invoke the self-test feature (see
test) and determine if these lines are
also flagged in the self-test mode.
• Check for bent or broken pins in the
video cable connector.
• Restart the computer in the safe
mode.
• Do not perform any troubleshooting
steps.
• Contact Dell immediately.
• Ensure that the video cable
connecting the monitor to the
computer is connected properly and is
secure.
• Reset the monitor to factory settings.
• Invoke the self-test feature (see
test) and determine if these lines are
also flagged in the self-test mode.
• 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.
• Change the settings of the Preset
Modes in the Color menu OSD
depending on the application.
• Adjust R/G/B value 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.
Troubleshooting
Self-
Self-
│
69