User Manual

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 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. See Connecting the cables
on page 8 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 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 display. 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 display
supports.
Change the settings to a supported setting (see Recognizing
Preset Display Resolutions on page 26).
The display is o but it did
not seem to enter into a low-
power sleep mode.
The display’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 display’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 display’s Power Button Lockout
function is enabled.
Press and hold the power button for 10 seconds to unlock the
power button 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 display is powered on, displaying an active signal, and the OSD is not active.
28 Appendix B Support and troubleshooting