Dell UltraSharp UP3218K 사용자 설명서 - 페이지 44

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Dell UltraSharp UP3218K 사용자 설명서

Common Problems

The following table contains general information about common monitor problems you
might encounter and the possible solutions:
Common
Symptoms
No Video/Power
LED off
No Video/Power
LED on
Missing Pixels
Stuck-on Pixels
Brightness
Problems
Safety Related
Issues
Intermittent
Problems
44
|
Troubleshooting
What You
Possible Solutions
Experience
No picture
• Ensure that the video cable connecting the
• Verify that the power outlet is functioning
• Ensure that the power button is depressed fully.
• Ensure that the correct input source is selected in
No picture or no
• Increase brightness & contrast controls via OSD.
brightness
• Perform monitor self-test feature check.
• Check for bent or broken pins in the video cable
• Run the built-in diagnostics.
• Ensure that the correct input source is selected in
LCD screen has
• Cycle power on-off.
spots
• Pixel that is permanently off is a natural defect
• For more information on Dell Monitor Quality
LCD screen has
• Cycle power On-Off.
bright spots
• Pixel that is permanently off is a natural defect
• For more information on Dell Monitor Quality
Picture too dim
• Reset the monitor to factory settings.
or too bright
• Adjust brightness & contrast controls via OSD.
Visible signs of
• Do not perform any troubleshooting steps.
smoke or sparks
• Contact Dell immediately.
Monitor
• Ensure that the video cable connecting the
malfunctions on
& off
• Reset the monitor to factory settings.
• Perform monitor self-test feature check to
monitor and the computer is properly connected
and secure.
properly using any other electrical equipment.
the
Input Source
menu.
connector.
the
Input Source
menu.
that canoccur in LCD technology.
and Pixel Policy, see Dell Support site at:
http://www.dell.com/support/monitors.
that canoccur in LCD technology.
and PixelPolicy, see Dell Support site at:
http://www.dell.com/support/monitors.
monitor to the computer is connected properly
and is secure.
determine if the intermittent problem occurs in
self-test mode.