Problem Possible Cause Solution
Check signal cable message appears. Signal cable is not connected. The signal cable between the PC and
monitor is not connected.
Check the signal cable.
Press the INPUT button on the remote
control to check the input signal.
“Unknown Product” message appears
when the monitor is connected.
Monitor driver is not installed. Install the monitor driver, which is
provided with the monitor or download
from the HP Web site
(
http://www.hp.com).
See if the plug & play function is
supported by referring to the video
card’s user manual.
“Key Lock On” message appears when
pressing the Menu button.
Key Lock function is turned on. The control locking function prevents
unintentional OSD setting change due
to careless usage. To unlock the
controls, simultaneously press the
Menu button and ► button for several
seconds. (You cannot set this function
using the remote control buttons. You
can set this function in the monitor
only.)
The screen looks abnormal; screen
position is wrong.
Screen is out of adjustment. D-sub analog signal - press the AUTO
button on the remote control to
automatically select the optimal screen
status that fits into the current mode. If
the adjustment is not satisfactory, use
the Position OSD menu.
Check that the video card resolution
and frequency are supported by the
monitor. If the frequency is out of range,
set to the recommended resolution in
the Control Panel > Display > Setting
menu of the operating system.
Lines appear on the background
screen.
Screen is out of adjustment. D-sub analog signal - press the AUTO
button on the remote control to
automatically select the optimal screen
status that fits into the current mode. If
the adjustment is not satisfactory, use
the Clock OSD menu.
Horizontal noise appears or the
characters look blurred.
Screen is out of adjustment. D-sub analog signal - press the AUTO
button on the remote control to
automatically select the optimal screen
status that fits into the current mode. If
the adjustment is not satisfactory, use
the Phase OSD menu.
The screen displays abnormally. Using an incorrect Input signal. The proper input signal is not
connected to the signal port. Connect
the signal cable that matches with the
source input signal.
An after image appears when the
monitor is turned off.
Using a fixed image too long. If you used a fixed image for a long
time, the pixels may be damaged. Use
a screen-saver function.
34 Appendix A Troubleshooting ENWW
