3-2
ThinkVision Pro2820 Flat Panel Monitor User’s Guide
Temperature
Operating
0
° to 40°C (
32
° to 104° F)
Storage
-20° to 60°C (-4° to 140° F)
Shipping
-20° to 60°C (-4° to 140° F)
Humidity
Operating
8
% to
9
0%
Storage
5
% to 9
5
%
Shipping
5
% to 9
5
%
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.
●
If you are replacing an old
monitor, reconnect it and adjust
the display mode to within the
specified range for your new
monitor.
●
If using a Windows system,
restart the system in safe mode,
then select a supported display
mode for your computer.
●
If these options do not work,
contact the Customer Support
Centre
.
“
Selecting a supported display
mode
”
on page 2-6
The image quality is
unacceptable.
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
page 1-4
The color settings
may be incorrect.
Select another colour 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 indicator
is not lit and there is
no image.
●
The monitor’s
power switch is
not switched on
.
●
The power cord is
loose or
disconnected.
●
There is no power
at the outlet.
●
Be sure the power cord is
connected properly.
●
Be sure the outlet has power.
●
Power on the monitor.
●
Try using another power cord.
●
Try using another electrical
outlet.
“
Connecting and turning
on your monitor
” on
page 1-4
