Dell U4919DW UltraSharp Monitor Users Guide - Page 79

Contact Dell immediately., Safety Related

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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 Screen is • Reset the monitor to factory settings. Problems scrambled or • Perform monitor self-test feature check to appears torn 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 Visible signs • Do not perform any troubleshooting steps. Issues of smoke or • Contact Dell immediately. sparks Intermittent Problems Monitor • Ensure that the video cable connecting the malfunctions monitor to the computer is connected on & off 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 • Perform monitor self-test feature check. missing color • 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. Troubleshooting │ 79

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Troubleshooting± ±
│
± ± 79
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.