Dell E2414H Посібник користувача - Сторінка 23
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Stuck-on Pixels
LCD screen
has bright
spots
Brightness
Picture too
Problems
dim or too
bright
Geometric
Screen not
Distortion
centered
correctly
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Troubleshooting
•
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:
http://
www.dell.com/support/monitors.
•
Reset the monitor to Factory
Settings.
•
Auto Adjust via OSD.
•
Adjust brightness & contrast
controls via OSD.
•
Reset the monitor to Factory
Settings.
•
Auto Adjust via OSD.
•
Adjust Horizontal Position &
Vertical Position controls via OSD.
NOTE: When using DVI-D input,
the positioning adjustments are not
available.
Horizontal/
Screen has one
Vertical Lines
or more lines
Synchronization
Screen is
Problems
scrambled or
appears torn
Safety Related
Visible signs
Issues
of smoke or
sparks
•
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.
•
Run the built-in diagnostics.
NOTE: When using DVI-D input, the
Pixel Clock and Phase adjustments are
not 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 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.
•
Do not perform any
troubleshooting steps.
•
Contact Dell immediately.
Troubleshooting
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