17
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
Screen is blank or
video is flashing.
Power cord is disconnected.
Power the 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.
Press any key on the
keyboard to exit Sleep
mode.
Video card is incompatible.
Open the OSD menu and
select the Input menu.
Set Auto- Switch Input
to Off and manually
select the input.
or
Replace the video card or
connect the video cable to
one of the computer’s on-
board video sources.
Image appears
blurred,
indistinct, or too
dark.
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 you
connect 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.
The monitor does
not enter into a
low-power sleep
state.
The monitor’s power saving control is disabled.
Open the OSD menu and
select Power, select Auto-
Sleep Mode and set auto-
sleep to On.
“OSD Lockout” is
displayed.
The monitor’s OSD lock function is enabled.
Press and hold the Menu
button for 10 seconds to
disable the OSD lockout
function.
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