4. Carefully inspect the screen for abnormalities.
5. Touch 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, touch 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
Possible Solutions
No Video/Power LED
off
No picture
lEnsure that the video cable connecting the monitor and the computer is properly connected and secure.
lVerify that the power outlet is functioning properly using any other electrical equipment.
lThe power on/off control is a capacitive touch sensitive sensor, pressing it may or may not power on the
monitor, lightly touch on the power on/off icon to try again.
No Video/Power LED
on
No picture or no
brightness
lIncrease brightness & contrast controls via OSD.
lPerform monitor self-test feature check.
lCheck for bent or broken pins in the video cable connector.
lRun the built-in diagnostics.
Poor Focus
Picture is fuzzy,
blurry, or ghosting
lPerform Auto Adjust via OSD.
lAdjust the Phase and Pixel Clock controls via OSD.
lEliminate video extension cables.
lReset the monitor to Factory Settings.
lChange the video resolution to the correct aspect ratio (16:9).
Shaky/Jittery Video
Wavy picture or fine
movement
lPerform Auto Adjust via OSD.
lAdjust the Phase and Pixel Clock controls via OSD.
lReset the monitor to Factory Settings.
lCheck environmental factors.
lRelocate the monitor and test in another room.
Missing Pixels
LCD screen has
spots
lCycle power on-off.
lPixel that is permanently off is a natural defect that can occur in LCD technology.
lRun the built-in diagnostics
Stuck-on Pixels
LCD screen has
bright spots
lCycle power on-off.
lPixel that is permanently off is a natural defect that can occur in LCD technology.
lRun the built-in diagnostics
Brightness Problems
Picture too dim or too
bright
lReset the monitor to Factory Settings.
lAuto Adjust via OSD.
lAdjust brightness & contrast controls via OSD.
Geometric Distortion
Screen not centered
correctly
lReset the monitor to Factory Settings.
lAuto Adjust via OSD.
lAdjust brightness & contrast controls via OSD.
NOTE: When using 'DVI-D' or 'HDMI', the positioning adjustments are not available.
Horizontal/Vertical
Lines
Screen has one or
more lines
lReset the monitor to Factory Settings.
lPerform Auto Adjust via OSD.
lAdjust Phase and Pixel Clock controls via OSD.
lPerform monitor self-test feature check and determine if these lines are also in self-test mode.
lCheck for bent or broken pins in the video cable connector.
lRun the built-in diagnostics
NOTE: When using 'DVI-D'or 'HDMI', the Pixel Clock and Phase adjustments are not available.
Synchronization
Problems
Screen is scrambled
or appears torn
lReset the monitor to Factory Settings.
lPerform Auto Adjust via OSD.
lAdjust Phase and Pixel Clock controls via OSD.