Lenovo ThinkVision LT2423 24-inch FHD LED Backlit LCD Monitor ThinkVision LT24 - Page 21

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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. Table 3-2. 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 image quality is unacceptable. The system is set to a display mode which is not supported by the monitor. The video signal cable is not conneced with the monitor or system completely. • 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 Support Center. "Selecting a supported display mode" on page 2-5 Be sure the signal cable is firmly plugged into the system and monitor. "Connecting and turning on your monitor" on page 1-3 The color settings may Select another color setting from the be incorrect. OSD menu. The automatic image Perform autormatic image setup. setup function was not performed. "Adjusting your monitor image" on page 2-3 "Adjusting your monitor image" on page 2-3 The power indicator is not lit and there is no image. The monitors 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 1-3 Chapter 3. Reference information 3-3

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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.
Table 3-2. Troubleshooting
Problem
Possible cause
Suggested action
Reference
The system is set to a
display mode which is
not supported by the
monitor.
The words“Out
of
Range” are
shown on the
screen, and the
power indicator
is flashing
green
• 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 Support Center.
“Selecting a
supported
display
mode” on
page 2-5
The image
quality is
unacceptable.
The video signal cable
is not conneced 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 1-3
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 autormatic image setup.
“Adjusting
your monitor
image” on
page 2-3
The power
indicator is not
lit and there is
no image.
The monitors 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 1-3
Chapter 3. Reference information
3-3