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.
Monitor is o. Press the monitor power button.
Video cable is not connected. Connect a video cable between the source device and monitor.
Be sure that the computer power is o while connecting the
video cable. 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. Replace the video card or connect the video cable to one of
the computer’s onboard video sources.
Image appears blurred,
indistinct, or too dark.
Brightness setting is too low. Open the OSD menu and select Brightness to adjust the
brightness scale as needed.
“Input Signal Not Found” is
displayed on the screen.
Video cable is disconnected. Connect a video cable between the source device and monitor.
Be sure that the computer power is o while connecting the
video cable. See Connecting the cables on page 6 for more
information.
“Input Signal Out of Range” is
displayed on the screen.
Video resolution and/or refresh rate
are set higher than the monitor
supports.
Change the settings to a supported setting (see Preset display
resolutions on page 26).
The monitor did not enter
into a low-power sleep mode.
The monitor's power saving control is
disabled.
Open the OSD menu and select Power, select Auto-Sleep
Mode, and then set auto-sleep to On.
Button lockouts
Holding down the power button or Menu button for ten seconds will lock out the functionality of that button.
You can restore the functionality by holding the button down again for ten seconds. This functionality is only
available when the monitor is on, displaying an active signal, and the OSD menu is closed.
Solving common problems 19