HP CV7540 - Page 31

Troubleshooting
Problem Possible Cause Solution
“No Signal” is
displayed on screen.
Monitor video cable is
disconnected.
Connect the 15-pin
monitor video cable
to the computer. Be
sure that the
computer power is
on.
“Out of Frequency” is
displayed on screen.
Video resolution and/or
refresh rate are set higher than
what your monitor supports.
Restart your computer
and enter Safe
Mode. Change your
settings to a
supported setting (see
“Technical
Specifications”).
Restart your computer
so that the new
settings take effect.
Monitor is There is not enough air space Leave at least 3
overheating. to allow proper ventilation. inches (76 mm) of
ventilation space
around the monitor,
and do not place
objects on top of the
monitor.
User Guide A–3