46
| Troubleshooting
Geometric
Distortion
Screen not
centered
correctly
•
Reset the monitor to factory settings.
• Auto Adjust
via OSD.
•
Adjust horizontal & vertical controls via OSD.
NOTE:
When using HDMI 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
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 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
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 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.
•
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
Color
menu
OSD.
•
Change the
Input Color Format
to PC RGB or YPbPr in the
Color
menu OSD.
•
Run the built-in diagnostics.