Dell E1715SE User Manual page 50

Stuck-on Pixels
Brightness Problems Picture too dim or too
Geometric Distortion Screen not centered
Horizontal/Vertical
Lines
Synchronization
Problems
Safety-Related Issues Visible signs of smoke
50 Troubleshooting

LCD screen has bright
spots
bright
correctly
Screen has one or
more lines
Screen is scrambled
or appears torn
or sparks
• 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:
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 brightness & contrast
controls via OSD.
NOTE: When using 'DP', the
positioning 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 and determine if these lines
are also in self-test mode.
• Check for bent or broken pins in
the video cable connector.
NOTE: When using 'DP', 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.