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3
Support and troubleshooting
If your monitor is not working as expected, you might be able to resolve the issue by following the
instructions in this section.
Solving common issues
The following table lists possible issues, the possible cause of each issue, and the recommended solutions.
Table 3-1
Common issues and solutions
Issues
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.
Image on monitor displays in
low contrast and low
saturation. There are no solid
blacks. Only dark grays
appear.
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 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.
The Video Level setting in the OSD
menu is not set appropriately for your
monitor configuration.
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. For more information, see
Connecting the cables on page
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 (see
resolutions 63.5 cm (25 in) model on page 30
display resolutions 68.6 cm (27 in) model on page
Open the OSD menu and select Power, select Auto-Sleep
Mode, and then set auto-sleep to On.
Press and hold the left button on the front of the monitor for
10 seconds to disable the OSD Lockout function.
Press and hold the
Power
button for 10 seconds to unlock the
power button function.
In the OSD menu, select Image, and then select Video Level.
Change the setting to Limited Range (64-940).
Solving common issues
9.
Preset display
or
Preset
31).
25
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