Troubleshooting |
57
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:
http://www.dell.com/
support/monitors
.
Brightness
Problems
Picture too dim
or too bright
•
Reset the monitor to factory settings.
•
Perform
Auto Adjust
via OSD.
•
Adjust brightness & contrast controls via OSD.
Geometric
Distortion
Screen not
centered
correctly
•
Reset the monitor to factory settings.
•
Perform
Auto Adjust
via OSD.
•
Adjust horizontal & vertical controls via OSD.
NOTE:
When using HDMI/DisplayPort input, 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 the
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 HDMI/DisplayPort input, 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 the
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.
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.
