Lenovo 2120-HB1 User Manual - 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
The words "Out
of Range" are
shown on the
screen, and the
power indicator
is flashing blue
The image
quality is
unacceptable
The power
indicator is not
lit and there is
no image
Screen is blank
and power
indicator is
steady amber or
flashing blue
Possible cause
Suggested action
The system is set to a
If you are replacing an
display mode which
old monitor, reconnect it
is not supported by
and adjust the display
the monitor
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
The video signal cable
Be sure the signal cable is
is not connected with
firmly plugged into the
the monitor or system
system and monitor
completely
The color settings
Select another color
may be incorrect
setting from the OSD
menu
The automatic image
Perform automatic image
setup function was
setup
not performed
•
The monitor's
•
Be sure the power
power switch is
cord is connected
not switched on
properly
•
The power cord is
•
Be sure the outlet has
loose or
power
disconnected
•
Power on the
•
There is no power
monitor
at the outlet
•
Try using another
power cord
•
Try using another
electrical outlet
The monitor is in
•
Press any key on the
Standby/Suspend
keyboard or move
mode
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 1-3
"Adjusting your
monitor image" on
page 2-3
"Adjusting your
monitor image" on
page 2-3
"Connecting and
turning on your
monitor" on page 1-3
"Understanding
power management"
on page 2-8
3-3
Chapter 3.