Humidity Operating
Storage
Shipping
10% to 80%
5% to 95%
5% to 95%
Troubleshooting

If you have a problem setting up or using your monitor, you might be able to

solve it yourself. Before calling your dealer or Lenovo, try the suggested actions

that are appropriate to your problem.

Table3-2. Troubleshooting
Problem Possible cause Suggested action Reference
The words ″Out
of Range″are
shown on the
screen, and the
power indicator
is flashing green.
The system is set
to a display
mode which is
not supported by
the monitor.
vIf you are replacing an
old monitor, reconnect
it and adjust the
display mode to within
the specified range for
your new monitor.
vIf using a Windows
system, restart the
system in safe mode,
then select a supported
display mode for your
computer.
vIf these options do not
work, contact the
Customer Support
Center.
“Selecting a supported
display mode” on page
The image
quality is
unnacceptable.
The video signal
cable is not
connected with
the monitor or
system
completely.
Be sure the signal cable is
firmly plugged into the
system and monitor.
“Connecting and turning
on your monitor” on
The color
settings may be
incorrect.
Select another color
setting from the OSD
menu.
“Adjusting your monitor
image” on page 2-3
The automatic
image setup
function was not
performed.
Perform automatic image
setup.
“Adjusting your monitor
image” on page 2-3
The power
indictator is not
lit and there is
no image.
vThe monitor’s
power switch
is not
switched on.
vThe power
cord is loose
or
disconnected.
vThere is no
power at the
outlet.
vBe sure the power cord
is connected properly.
vBe sure the outlet has
power.
vPower on the monitor.
vTry using another
power cord.
vTry using another
electrical outlet.
“Connecting and turning
on your monitor” on
3-2 L1940p Wide Flat Panel Monitor User’s Guide
Table3-1. Monitor specifications for type-model 4424-Hxx (continued)
2-6
page 1-4
page 1-4