Dell P2721Q Users Guide - Page 61

Troubleshooting, Common, Symptoms, What you, experience, Possible Solutions, Preset Modes, Color

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Common Symptoms What you experience Possible Solutions Stuck-on Pixels LCD screen has bright spots • Cycle power On-Off. • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and Pixel Policy, see Dell support site at: www.dell.com/support/monitors. Brightness Problems Picture too dim or • Reset the monitor to factory settings. too bright • Adjust brightness & contrast controls via OSD. Synchronization Screen is scrambled • Reset the monitor to factory settings. Problems or appears torn • 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 Visible signs of • Do not perform any troubleshooting steps. Issues smoke or sparks • 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. • 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 R/G/B value under Custom Color in the Color menu OSD. • Run the built-in diagnostics. Troubleshooting │ 61

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Troubleshooting
│
61
Common
Symptoms
What you
experience
Possible Solutions
Stuck-on Pixels
LCD screen has
bright spots
• Cycle power On-Off.
• Pixel that is permanently off is a natural defect
that can occur in LCD technology.
• For more information on Dell Monitor Quality
and Pixel Policy, see Dell support site at:
www.dell.com/support/monitors
.
Brightness
Problems
Picture too dim or
too bright
• Reset the monitor to factory settings.
• Adjust brightness & contrast controls via OSD.
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
& 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 R/G/B value under
Custom Color
in the
Color
menu OSD.
• Run the built-in diagnostics.