Chapter 3. Reference Information; Manual Image Setup - Lenovo 2448HB6 User Manual

Table 3-2. Troubleshooting (continued)
Problem
Screen is blank
and power
indicator is
steady amber or
flashing green
The power
indicator is
green, but there
is no image.
One or more of
the pixels appear
discolored
v Fuzzy lines in
text or a
blurry image.
v Horizontal or
vertical lines
through the
image.

Manual image setup

If automatic image setup does not establish the image that you prefer, perform
manual image setup.
Note: Have your monitor powered on for about 15 minutes, until the monitor
warms up.
1. Press
2. Use or
3. Use or
Possible cause
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.
This is a
characteristic of
the LCD
technology and
is not an LCD
defect.
v Image setup
has not been
optimized
v Your system
Display
Properties
setting have
not been
optimized.
at the bottom of the monitor to open the OSD menu.
to select and press
to select Clock and Phase adjustment.
Suggested action
v Press any key on the
keyboard or move the
mouse to restore
operation.
v 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 Customer
Support Center.
Adjust the resolution
settings on your system
to match the native
resolution for this
1440 x 900
monitor: at 60
Hz.
Perform automatic image
setup. If automatic image
setup does not help,
perform manual image
setup.
When working in the
native resolution, you
may find additional
improvements by
adjusting the Dots Per
Inch (DPI) setting on
your system.
to access.

Chapter 3. Reference information

Reference
"Understanding power
management" on page
2-6
"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
"Adjusting your monitor
image" on page 2-3
"Manual image setup"
"Selecting a supported
display mode" on page
2-6
See the Advanced section
of your system's display
properties.
3-3