Troubleshooting - Lenovo R25f-30 User Manual

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 white
The image quality
is unacceptable
The power
indicator is not
lit and there is no
image.
Screen is blank
and power
indicator is amber.
The power
indicator is amber,
but there is no
image
3- 3-3 R25f-30 Flat Panel Monitor User's Guide
Possible cause
The system is set to a
display mode which is
not supported by the
monitor
The video signal cable
is not connected with
the monitor or system
completely.
The color settings may be
incorrect.
The automatic image
setup function was not
performed.
• The monitor's
power switch is
not switched on.
• The power cord is
loose or disconnected.
• There is no power
at the outlet.
The monitor is in Standby
/ Suspend mode
The video signal cable
is loose or disconnected
from the system or
monitor
The monitor brightness
and contrast are at the
lowest setting.
Suggested action
• If you are replacing an old
monitor, reconnect it and
adjust the display mode to
within the specified rang
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.
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. "Adjusting your
• 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.
Be sure the video cable is
connected with the system
properly
Adjust the brightness and
contrast setting on the OSD
menu.
Reference
" Selecting a
supported display
mode" on page 2-7
"Connecting and
turning on your
monitor" on page
1-4
"Adjusting your
monitor image" on
page 2-3
monitor image" on
page 2-3
"Connecting and
turning on your
monitor" on page
1-4
"Understanding
power management"
on page 2-7
"Connecting and
turning on your
monitor" on page
1-4
"Adjusting your
monitor image" on
page 2-3