Dell UltraSharp 27, Руководство пользователя

Страница: 54 / 75

54  Troubleshooting
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 .
• Adjust brightness & contrast
controls via OSD.
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
selftest 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.