58
| Troubleshooting
Missing Pixels
LCD screen has
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
.
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
.
•
Adjust brightness & contrast controls via OSD.
Geometric
Distortion
Screen not
centered
correctly
•
Reset the monitor to
Factory Settings
.
•
Adjust horizontal & vertical controls via OSD.
Horizontal/
Vertical Lines
Screen has one
or more lines
•
Reset the monitor to
Factory Settings
.
•
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
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
Color Setting Mode
in the
Color Settings
OSD
to
Graphics
or
Video
depending on the application.
•
Try different
Color Preset Settings
in
Color Settings
OSD.
Adjust R/G/B value in
Color Settings
OSD if the
Color
Management
is turned off.
•
Change the
Input Color Format
to PC RGB or YPbPr in the
Color Settings
OSD.
•
Run the built-in diagnostics.
