Lenovo ThinkVision L171p User Manual page 21

Table 3-2. Troubleshooting
Problem Possible cause
The image The video signal cable
quality is is not connected with
unnacceptable. the monitor or system
completely.
The color settings
may be incorrect.
The automatic image
setup function was
not performed.
The power • The monitor's
indictator is not power switch is
lit and there is not switched on.
no image.
• The power cord is
loose or
disconnected.
• There is no power
at the outlet.
Screen is blank The monitor is in
and power Standby/Suspend
indicator is mode
steady amber or
flashing green
The power The video signal cable
indicator is is loose or
green, but there disconnected from the
is no image. system or monitor.
The monitor
brightness and
contrast are at the
lowest setting.
One or more of This is a characteristic
the pixels appear of the LCD
discolored technology and is not
an LCD defect.
Suggested action
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.
Be sure the video cable is
connected with the
system properly.
Adjust the brightness and
contrast setting on the
OSD menu.
If there are more than five
pixels missing, contact
the IBM Support Center.
Reference
"Connecting and
turning on your
monitor" on page 1-4
"Adjusting your
monitor image" on
page 2-3
"Adjusting your
monitor image" on
page 2-3
"Connecting and
turning on your
monitor" on page 1-4
"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
Appendix A,
"Service and
Support," on page
A-1
3-3
Chapter 3.