This chapter contains information about how to
troubleshoot your LCD Monitor. If you have tried all
of the items listed below, check your warranty and
contact Support. Go to http://www.hp.com and
click the Support link.
My display doesn't work, even
though the computer appears
1 Make sure the power cable is securely plugged
into the display.
2 Make sure the display is turned on.
3 Try turning the display off and then turning it on
4 Make sure the display's power cord is plugged
into a power outlet and into the AC power
adapter. Check to see whether the outlet works by
plugging another device (such as a lamp) into the
outlet. (If the light on the front of the display is
lighted, it is getting power. Try the next item on
5 Check the cable connection between the display
and the computer. The cable connectors must be
pushed in all the way.
The message "Check Cable" appears
on my display.
This message appears when the video cable is not
properly connected to the computer.
1 Make sure the analog video cable is plugged into
the Analog Video Input port on the back of the
2 Make sure the other end of analog video cable is
plugged into the PC's video port.
The message "No Sync." appears on
This message appears when there is no video signal
from the computer with cable already connected.
1 Make sure that the computer's power is turn on.
2 Make sure that your graphic card has its output.
The message "Signal Out of Range"
appears on my display.
This message appears when the input signal is
beyond the display's capability.
Set your PC to a supported video mode, preferably
1024 x 768 at 60 Hz. See "Setting the Video Mode" on
The image is very unstable.
1 Set your PC to a supported video mode,
preferably 1024 x 768 at 60 Hz. See "Setting the
Video Mode" on page 7.
2 Restore the original factory settings by choosing
Factory Recall in the OSD "Factory Recall"
3 Perform the Auto Setup function. See "Auto
Setup by Direct Key" on page 15.
Even if your PC's setting is out of the range
of video modes that are supported by your LCD
monitor, it may still be displayed with reduced
quality. This provides you with an opportunity to
change your PC's setting to a correct one.