12 3 Support and troubleshooting
3 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
flashing.
Power cord is disconnected.
Connect the power cord.
Monitor is off.
Press the Power button.
NOTE:
If pressing the Power button has no effect,
press and hold the Power button for 10 seconds to dis-
able the Power button lockout feature.
Video cable is improperly connected.
Connect the video cable properly. See Connecting the
cables on page 6 for more information.
System is in sleep mode.
Press any key on the keyboard or move the mouse to
exit sleep mode.
Video card is incompatible.
Open the OSD menu and select the
Input Control
menu.
Set Auto-Switch Input
to
Off
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 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. See Preset
display resolutions on page 19 for more information.
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
.
OSD Lockout
is displayed.
The monitor’s OSD Lockout function
is enabled.
Press and hold the Menu button on the bottom side
of the front bezel for 10 seconds to disable the OSD
Lockout function.
Power Button Lockout
is
displayed.
The monitor’s Power Button Lockout
function is enabled.
Press and hold the Power button for 10 seconds to dis-
able the Power Button Lockout function.
Summary of Contents for 54.61 cm/21.5-inch
Page 1: ...User Guide ...
