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
fourth
button 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 Experience
Possible Solutions
No Video/Power LED off
No picture
l
Ensure that the video cable connecting the monitor and the computer is properly
connected and secure.
l
Verify that the power outlet is functioning properly using any other electrical equipment.
l
Ensure that the power button is depressed fully.
No Video/Power LED on
No picture or no brightness
l
Increase brightness & contrast controls via OSD.
l
Perform monitor self-test feature check.
l
Check for bent or broken pins in the video cable connector.
l
Run the built-in diagnostics.
Poor Focus
Picture is fuzzy, blurry, or
ghosting
l
Perform Auto Adjust via OSD.
l
Adjust the Phase and Pixel Clock controls via OSD.
l
Eliminate video extension cables.
l
Reset the monitor to Factory Settings.
l
Change the video resolution to the correct aspect ration (16:9).
Shaky/Jittery Video
Wavy picture or fine movement
l
Perform Auto Adjust via OSD.
l
Adjust the Phase and Pixel Clock controls via OSD.
l
Reset the monitor to Factory Settings.
l
Check environmental factors.
l
Relocate the monitor and test in another room.
Missing Pixels
LCD screen has spots
l
Cycle power on-off.
l
Pixel that is permanently off is a natural defect that can occur in LCD technology.
l
Run the built-in diagnostics.
Stuck-on Pixels
LCD screen has bright spots
l
Cycle power on-off.
l
Pixel that is permanently off is a natural defect that can occur in LCD technology.
l
Run the built-in diagnostics.
Brightness Problems
Picture too dim or too bright
l
Reset the monitor to Factory Settings.
l
Auto Adjust via OSD.
l
Adjust brightness & contrast controls via OSD.
Geometric Distortion
Screen not centered correctly
l
Reset the monitor to Factory Settings.
l
Auto Adjust via OSD.
l
Adjust brightness & contrast controls via OSD.
NOTE:
When using 'HDMI', the positioning adjustments are not available.
Horizontal/Vertical Lines
Screen has one or more lines
l
Reset the monitor to Factory Settings.
l
Perform Auto Adjust via OSD.
l
Adjust Phase and Pixel Clock controls via OSD.
l
Perform monitor self-test feature check and determine if these lines are also in self-test
mode.
l
Check for bent or broken pins in the video cable connector.
l
Run the built-in diagnostics.
NOTE:
When using 'HDMI', the Pixel Clock and Phase adjustments are not available.
Synchronization Problems
Screen is scrambled or appears
torn
l
Reset the monitor to Factory Settings.
l
Perform Auto Adjust via OSD.
l
Adjust Phase and Pixel Clock controls via OSD.
l
Perform monitor self-test feature check to determine if the scrambled screen appears in
self-test mode.
l
Check for bent or broken pins in the video cable connector.
l
Restart the computer in the
safe mode
.
Safety Related Issues
Visible signs of smoke or
sparks
l
Do not perform any troubleshooting steps.
l
Contact Dell immediately.
Intermittent Problems
Monitor malfunctions on & off
l
Ensure that the video cable connecting the monitor to the computer is connected
properly and is secure.
l
Reset the monitor to Factory Settings.
l
Perform monitor self-test feature check to determine if the intermittent problem occurs in
self-test mode.
Missing Color
Picture missing color
l
Perform monitor self-test feature check.
l
Ensure that the video cable connecting the monitor to the computer is connected
properly and is secure.
l
Check for bent or broken pins in the video cable connector.
Wrong Color
Picture color not good
l
Change the Color Setting Mode in the Color Settings OSD to Graphics or Video
depending on the application.
l
Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color
Settings OSD if the Color Management is turned off.
l
Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.
l
Run the built-in diagnostics.
Downloaded from ManualMonitor.com Manuals
