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
flashing.
Power cord is disconnected. Connect the power cord.
Power button is turned off. Press the front panel power button.
NOTE: If pressing the power button has no effect, 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 7 for more information.
System is in sleep mode. 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 Input Control menu.
Set Auto-Switch Input to Off 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 off 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
Recognizing preset display resolutions on page 26).
The monitor is off 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 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 panel 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.
28 Appendix B Support and troubleshooting
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