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Troubleshooting
3-3 L24m-40 Flat Panel Monitor User's Guide
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
The words "Out
The system is set to a
of Range" (Out of
display mode which is
Range) are shown
not supported by the
on the screen, and
monitor�
the power indicator
is flashing white�
The image quality
The video signal cable
is unacceptable�
is not connected with
the monitor or system
completely�
The color settings may
be incorrect�
The automatic image
setup function was not
performed�
The power
• The monitor's
indicator is not
power switch is not
lit and there is no
switched on�
image�
• The power
cord is loose or
disconnected�
• There is no power at
the outlet�
Screen is blank and
The monitor is in
power indicator is
Standby/Suspend
amber�
mode�
Suggested action
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�
Be sure the signal cable
is firmly plugged into the
system and monitor�
Select another color setting
from the OSD menu�
Perform automatic image
setup�
• 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�
• Press any key on the
keyboard or move the
mouse to restore operation�
• Check the Power Options
settings on your computer�
Reference
"Selecting a supported
display mode" on
page 2-7
"Connecting and
turning on your
monitor" on page 1-5
"Adjusting your
monitor image" on
page 2-3
"Adjusting your
monitor image" on
page 2-3
"Connecting and
turning on your
monitor" on page 1-5
"Understanding power
management" on
page 2-8
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