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4. Carefully inspect the screen for abnormalities.
5. Press the shortcut key 4 key on the front panel again. The color of the screen changes to red.
6. Inspect the display for any abnormalities.
7. Repeat steps 5 and 6 to inspect the display in green, blue, and white colored screens.
The test is complete when the white screen appears. To exit, press the shortcut key 4 key again.
If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer.
Common Problems
The following table contains general information about common monitor problems you might encounter and the possible solutions.
Common Symptoms
What You See
No Video/Power LED
No picture
off
No Video/Power LED
No picture or no
on
brightness
Poor Focus
Picture is fuzzy,
blurry, or ghosting
Shaky/Jittery Video
Wavy picture or fine
movement
Missing Pixels
LCD screen has
spots
Stuck-on Pixels
LCD screen has
bright spots
Brightness Problems Picture is too dim or
too bright
Geometric Distortion Screen is not
centered correctly
Horizontal/Vertical
Screen has one or
Lines
more lines
Synchronization
Screen is scrambled
Problems
or appears torn
Ensure that the video cable connecting the monitor and the computer is properly connected and secure.
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Verify that the power outlet is functioning properly using any other electrical equipment.
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Increase brightness & contrast controls via OSD.
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Perform monitor self-test feature check.
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Check for bent or broken pins in the video cable connector.
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Press Shortcut key 4 to call out the Input Select Source OSD menu. Select the correct input source.
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Run the built-in diagnostics.
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Perform Auto Adjust via OSD.
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Adjust the Phase and Pixel Clock controls via OSD.
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Eliminate video extension cables.
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Reset the monitor to Factory Settings.
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Change the video resolution to the correct aspect ratio (16:9).
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Perform Auto Adjust via OSD.
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Adjust the Phase and Pixel Clock controls via OSD.
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Reset the monitor to Factory Settings.
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Check environmental factors.
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Relocate the monitor and test in another room.
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Cycle power on-off.
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Pixel that is permanently off is a natural defect that can occur in LCD technology.
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Run the built-in diagnostics
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Cycle power on-off.
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Pixel that is permanently off is a natural defect that can occur in LCD technology.
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Run the built-in diagnostics
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Reset the monitor to
Factory
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Auto Adjust via OSD.
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Adjust brightness & contrast controls via OSD.
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Reset the monitor to Factory Settings.
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Auto Adjust via OSD.
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Adjust brightness & contrast controls via OSD.
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NOTE:
When using 'DVI-D' or 'HDMI', the positioning adjustments are not available.
Reset the monitor to Factory Settings.
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Perform Auto Adjust via OSD.
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Adjust Phase and Pixel Clock controls via OSD.
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Perform monitor self-test feature check and determine if these lines are also in self-test mode.
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Check for bent or broken pins in the video cable connector.
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Run the built-in diagnostics
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NOTE:
When using 'DVI-D' or 'HDMI', the Pixel Clock and Phase adjustments are not available.
Reset the monitor to Factory Settings.
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Perform Auto Adjust via OSD.
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Adjust Phase and Pixel Clock controls via OSD.
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Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode.
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Check for bent or broken pins in the video cable connector.
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Restart the computer in the safe mode.
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Possible Solutions
Settings.