Dell U2715H Monitor - Manual (Page 57)

Troubleshooting |
57
Shaky/Jittery
Video Wavy picture or
fine movement ∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Check environmental factors.
∞ Relocate the monitor and test in another room.
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(Factory
Reset).
∞ Adjust brightness & contrast controls via OSD.
Geometric
Distortion Screen not
centered correctly ∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Adjust horizontal & vertical controls via OSD.
Horizontal/
Vertical Lines Screen has one or
more lines ∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ 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(Factory
Reset).
∞ 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(Factory
Reset).
∞ Perform monitor self-test feature check to
determine if the intermittent problem occurs in self-
test mode.