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Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the recommended
solutions.
Table 4-2:
Solving common problems
Problem
Screen is blank or
video is blinking.
Image appears
blurred, indistinct, or
too dark.
"Check Video Cable"
is displayed on the
screen.
"Input Signal Out of
Range" is displayed
on screen.
The monitor does not
enter into a low-
power sleep state.
"OSD Lockout" is
displayed.
"Power Button
Lockout" is
displayed.
18
Problem
Power cord is disconnected.
Monitor is off.
Video cable is improperly
connected.
System is in Auto-Sleep Mode.
Video card is incompatible.
Brightness setting is too low.
Monitor video cable is
disconnected.
Video resolution and/or refresh
rate are set higher than the
monitor supports.
The monitor's power saving
control is disabled.
The monitor's OSD Lockout
function is enabled.
The monitor's Power Button
Lockout feature is enabled.
Problem
Connect the power cord.
Press the monitor power button.
NOTE:If pressing the power button has
no effect,press and hold the power
button for 10 sec to disable the Power
Button Lockout feature.
Connect the video cable properly.
Press any key on the keyboard or move
the mouse to inactivate the screen
blanking utility.
Open the OSD menu and select the
Input menu. Set Auto-Switch Input to
Offand manually select the input.
Or Replace the video card or connect
the video cable to one of the computer's
on-board video sources.
Open the OSD menu, and select
Brightness+ to adjust the brightness
scale as needed.
Connect the appropriate video signal
cable between the computer and
monitor. Be sure that the computer
power is off while connecting the video
cable.
Change the settings to a supported
setting.
Open the OSD menu and select Power,
select Auto-Sleep Mode, and then set
auto-sleep to On.
Press and hold the Menu button for 10
seconds to disable the OSD Lockout
function.
Press and hold the Power button for 10
seconds to unlock the power button
function.
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