Dell UltraSharp UP3218KA 사용자 설명서 - 페이지 45
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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
Missing Color
What You
Possible Solutions
Experience
No picture
• Ensure that the video cable connecting the monitor
• Verify that the power outlet is functioning properly
• Ensure that the power button is depressed fully.
• Ensure that the correct input source is selected in the
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 the
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 or
• Reset the monitor to factory settings.
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 monitor to
malfunctions on
& off
• Reset the monitor to factory settings.
• Perform monitor self-test feature check to determine
Picture missing
• Perform monitor self-test.
color
• Ensure that the video cable connecting the monitor to
• Check for bent or broken pins in the video cable
and the computer is properly connected and secure.
using any other electrical equipment.
Input Source
menu.
connector.
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.
the computer is connected properly and is secure.
if the intermittent problem occurs in self-test mode.
the computer is connected properly and is secure.
connector.
Troubleshooting
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