Users Guide

62 | Troubleshooting
Shaky/Jittery
Video
Wavy picture or
fine movement
• Perform Auto Adjust via OSD.
• Adjust the Phase and Pixe
l Clock controls via OSD.
• Reset the monitor to Fa
ctory Settings.
• Check environmental
factors.
• Relocate the monitor and test in another room.
Missing Pixels L
CD screen has
spots
• Cycle power On-Off.
• Pixel that is permanently Off is a natural defect that can
occur in L
CD technology.
• For
more information on Dell Monitor Quality and Pixel
Po
licy, see Dell Support site at: http://www.dell.com/
support/monitors.
Stuck-on Pixels LCD screen has
bright sp
ots
• Cycle power On-Off.
• Pixel that is permanently off is a natural defect that can
occur in L
CD technology.
• For
more information on Dell Monitor Quality and Pixel
Po
licy, see Dell Support site at: http://www.dell.com/
support/monitors.
Brightness
Probl
ems
Picture too dim
or too bright
• Reset the monitor to Factory Settings.
• Auto Adjust via OSD.
• Adjust bright
ness & contrast controls via OSD.
Geometric
Distortion
Scre
en not
centered
corr
ectly
• Reset the monitor to Factory Settings.
• Auto Adjust via OSD.
• Adjust hori
zontal & vertical controls via OSD.
NOTE: When using DP/HDMI input, the positioning
adjustments are not available.
Horizontal/
Vert
ical 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
th
ese 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 DP/HDMI input, the Pixel Clock and Phase
adjustments are not available.
Synchronization
Probl
ems
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.
Safet
y Related
Issues
Visible signs of
smoke or spark
s
• Do not perform any troubleshooting steps.
• Contact Dell immediately.