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.
Table 3-1 Common problems and solutions
Problem Possible cause Solution
Screen is blank or video is
ashing.
Power cord is disconnected. Connect the monitor power cord.
Monitor is turned o. Press the monitor power button.
NOTE: If pressing the power button has no eect, press and
hold the power button for 10 seconds to disable the Power
Button Lockout feature.
Video cable is not connected. Connect a video cable between the source device and monitor.
Be sure the computer power is o when 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 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.
Monitor video cable is disconnected. Connect the appropriate video signal cable between the
computer and monitor. Be sure that the computer power is o
when connecting the video cable.
“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 for more information.
The monitor is o but it did
not seem to enter a low-
power sleep mode.
The monitor's sleep mode is disabled. Open the OSD menu and select Power Control, select Auto-
Sleep Mode, and then set auto-sleep to On.
“OSD Lockout” is displayed
on the screen.
The monitor's OSD Lockout function
is enabled.
Press and hold the Menu button for 10 seconds to disable the
OSD Lockout function.
“Power Button Lockout” is
displayed on the screen.
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.
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 is not active.
22 Chapter 3 Support and troubleshooting