Lenovo ThinkVision T22v-20 21.5" 16:9 VoIP IPS Monitor - Manual (Page 31)

3-3 T22v-20 Flat Panel Monitor User’s Guide
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 white.
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
2-10
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 1-7
The image quality
is unacceptable.
The color
settings may be
incorrect.
Select another colour setting
from the OSD menu.
“Adjusting your monitor
image” on page 2-6
The image quality
is unacceptable.
The automatic
image setup
function was not
performed.
Perform automatic image
setup.
“Adjusting your monitor
image” on page 2-6
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 1-7