21
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 is
off, but it did not
seem to enter
into 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.
On-Screen Menus
are Locked is
displayed.
The monitor’s OSD lock function is enabled.
Press and hold the Menu
button on the front bezel to
10 seconds to disable the
OSD lockout function.
Power Button is
Locked is
Displayed
The monitor’s power button is locked.
Press and hold the power
button for 10 seconds to
disable the power button
lock function.
