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Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the recommended solutions.
Problem
Screen is blank or
video is flashing.
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.
Touch function is not
working (select
products only)
"OSD Lockout" is
displayed
"Power Button
Lockout" is displayed.
22
Possible cause
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 what the monitor supports.
The monitor's power saving control is disabled. Open the OSD menu and
The touch screen function is enabled only if
the USB Type-B port on the monitor is
connected to the USB-Type-A port on the
computer via a USB Type-B-to-A cable.
The monitor's OSD lockout function is
enabled.
The monitor's Power Button Lockout feature
is enabled.
Solution
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 seconds 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 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.
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.
select Power, select Auto-
Sleep Mode, and then set
auto-sleep to On.
Connect the appropriate
cables.
Press and hold the Left button
for 10 seconds to disable the
OSD Lockout function.
Press and hold the Power
button for 10 seconds to
unlock the power button
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