User Guide
3 Support and troubleshooting
Solving common problems
The following table lists possible problems, the possible cause of each problem, and the recommended 
solutions.
Problem Possible Cause Solution
Screen is blank or video is 
ashing.
Power cord is disconnected. Connect the power cord.
Power button is o. Press the front bezel power button.
NOTE: If pressing the power button has no eect, press and 
hold the power button for 10 seconds to disable the Power 
Button Lockout feature.
Video cable is improperly connected. Connect the video cable properly. See Connecting the cables 
on page 6 for more information.
System is in sleep mode. Press any key on the keyboard or move the mouse to exit 
sleep mode.
  Video card is incompatible. Open the OSD menu and select the Input Control menu. Set 
Auto-Switch Input to O and manually select the input.
Image appears blurred, 
indistinct, or too dark.
Brightness is too low. Open the OSD menu and select Brightness to adjust the 
brightness scale as needed.
Check Video Cable is 
displayed on screen.
Monitor video cable is disconnected. Connect the appropriate video signal cable between the 
computer and monitor. Be sure that the computer power is o 
while you connect the video cable.
Input Signal Out of Range is 
displayed on screen.
Video resolution and/or refresh rate 
are set higher than what the monitor 
supports.
Change the settings to a supported setting. See Preset display 
resolutions on page 28 for more information.
The monitor is o but it did 
not seem to enter into sleep 
mode.
The monitor's power saving control is 
disabled.
Open the OSD menu and select Power Control > Auto-Sleep 
Mode and set auto-sleep to On.
OSD Lockout is displayed. The monitor's OSD Lockout function 
is enabled.
Press and hold the Menu button on the front bezel for 10 
seconds to disable the OSD Lockout function.
Power Button Lockout is 
displayed.
The monitor's Power Button Lockout 
function is enabled.
Press and hold the power button for 10 seconds to disable the 
Power Button Lockout function.
Solving common problems 19










