Troubleshooting
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71
Brightness
Problems
• Reset the monitor to Factory Settings (
Factory Reset
).
• Adjust brightness & contrast controls via OSD.
Geometric
Distortion
• Reset the monitor to Factory Settings (
Factory Reset
).
• Adjust horizontal & vertical controls via OSD.
Horizontal/
Vertical 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
• 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
• Do not perform any troubleshooting steps.
• Contact Dell immediately.
Intermittent
Problems
• 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
• 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
• Change the
Color Setting Mode
in the
Color Settings
OSD to
Graphics
or
Video
depending on the application.
• 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(digital)/YPbPr(analog)
in the
Color settings
OSD.
• Run the built-in diagnostics.
