Dell E1715S Dell Monitor User Guide - Page 50

Adjust Phase and Pixel Clock, Monitor Quality and Pixel Policy

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Stuck-on Pixels LCD screen has bright • Cycle power on-off. spots • 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 • Reset the monitor to Factory bright Settings. • Auto Adjust via OSD. • Adjust brightness & contrast controls via OSD. Geometric Distortion Screen not centered • Reset the monitor to Factory correctly Settings. • Auto Adjust via OSD. • Adjust brightness & contrast controls via OSD. NOTE: When using 'DP', the positioning adjustments are not Horizontal/Vertical Screen has one or Lines more lines available. • Reset the monitor to Factory Settings. • Perform Auto Adjust via OSD. • Adjust Phase and Pixel Clock controls via OSD. • 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. NOTE: When using 'DP', the Pixel Clock and Phase adjustments are not available. Synchronization Screen is scrambled • Reset the monitor to Factory Problems or appears torn Settings. • Perform Auto Adjust via OSD. • Adjust Phase and Pixel Clock controls via OSD. • 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 • Do not perform any or sparks troubleshooting steps. • Contact Dell immediately. 50  Troubleshooting

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50
Troubleshooting
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
.
•
Auto Adjust via OSD.
•
Adjust brightness & contrast
controls via OSD.
Geometric Distortion Screen not centered
correctly
•
Reset the monitor to
Factory
Settings
.
•
Auto Adjust via OSD.
•
Adjust brightness & contrast
controls via OSD.
NOTE
: When using ‘DP’, the
positioning adjustments are not
available.
Horizontal/Vertical
Lines
Screen has one or
more lines
•
Reset the monitor to
Factory
Settings
.
•
Perform Auto Adjust via OSD.
•
Adjust Phase and Pixel Clock
controls via OSD.
•
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.
NOTE
: When using ‘DP’, the Pixel
Clock and Phase adjustments are
not available.
Synchronization
Problems
Screen is scrambled
or appears torn
•
Reset the monitor to
Factory
Settings
.
•
Perform Auto Adjust via OSD.
•
Adjust Phase and Pixel Clock
controls via OSD.
•
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.