Manual
50 Troubleshooting
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 •Ensure that the video cable 
connecting the monitor and the 
computer is properly connected and 
secure.
•Verify that the power outlet is 
functioning properly using any other 
electrical equipment.
•Ensure that the power button is 
depressed fully. 
•Ensure that the correct input source 
is selected via the Input Source Select 
button. 
•Check the “Power LED Button” option 
under Energy in OSD Menu.
No Video/Power LED 
on
No picture or no 
brightness
•Increase brightness & contrast 
controls via OSD.
•Perform monitor self-test feature 
check.
•Check for bent or broken pins in the 
video cable connector. 
•Ensure that the correct input source 
is selected via the Input Source Select 
menu. 
•Run the built-in diagnostics. 
Poor Focus Picture is fuzzy, blurry, 
or ghosting
•Perform Auto Adjust via OSD.
•Adjust the Phase and Pixel Clock 
controls via OSD.
•Eliminate video extension cables.
•Reset the monitor to Factory 
Settings. 
•Change the video resolution to the 
correct aspect ratio (16:9). 
Shaky/Jittery Video Wavy picture or fine 
movement
•Perform Auto Adjust via OSD.
•Adjust the Phase and Pixel Clock 
controls via OSD.
•Reset the monitor to Factory 
Settings.
•Check environmental factors.
•Relocate the monitor and test in 
another room. 










