User Guide

B 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 on front panel of the
monitor is turned o.
Press the front panel 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 improperly connected. Connect the video cable properly. Refer to Setting up the
monitor on page 5 for more information.
NOTE: If using DisplayPort input, make sure the cable is
connected to the DisplayPort IN connector located at the rear
center of the monitor. The monitor will not function if the
cable is connected to the DisplayPort OUT connector.
Screen blanking is active. Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
Video card compatibility. Open the OSD menu and select the Video Input menu. Set
Input Auto-Switch Source to Disable and manually select the
input.
Monitor will not turn on. Master power switch on rear panel of
the monitor is turned O.
Turn the master power switch to On.
Image appears blurred,
indistinct, or too dark.
Brightness is too low. Open the OSD menu and select Color Space > Adjust
Luminance to adjust the luminance scale as needed.
Sharpness is too soft. Open the OSD menu and select Image Adjustment >
Sharpness to select a sharpness level.
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 connecting 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 33).
The monitor is o but it did
not seem to enter into a low-
power sleep mode.
The monitor's power saving control is
disabled.
Open the OSD menu and select Management > Auto-Sleep
and set auto-sleep to Enable.
OSD Lockout is displayed. The monitor's OSD Lockout function
is enabled.
Press and hold the bottom Menu button 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 unlock the
power button function.
34 Appendix B Support and troubleshooting