Manual Image Setup - Lenovo LS1922 User Manual

Table 3-2. Troubleshooting
Problem
The power
indicator is
green, but there
is no image
One or more of
the pixels appear
discolored
• Fuzzy lines
in text or a
blurry
image
• 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.
2.
3.
4.
5.
3-4
LS1922 Wide Flat Panel Monitor User's Guide
Possible cause
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
• Image setup has
not been
optimized
• Your system
Display
Properties setting
have not been
optimized
Press at the bottom of the monitor to open the OSD menu.
Use or to select and press
Use or to select Clock and Phase adjustment.
• Clock (pixel frequency) adjusts the number of pixels scanned by one
horizontal sweep. If the frequency is not correct, the screen shows vertical
stripes and the picture does not have the correct width.
• Phase adjusts the phase of the pixel clock signal. With a wrong phase
adjustment, the picture has horizontal disturbances in light picture.
When the image no longer looks distorted, save the Clock and Phase adjustments.
Press to leave the OSD menu.
Suggested action Reference
Be sure the video cable is "Connecting and
connected with the turning on your
system properly monitor" on page 1-3
Adjust the brightness and "Adjusting your
contrast setting on the monitor image" on
OSD menu page 2-3
If there are more than five Appendix A,
pixels missing, contact "Service and
the Support Center Support," on page
A-1
Adjust the resolution "Adjusting your
settings on your system monitor image" on
to match the native page 2-3
resolution for this
"Manual image
monitor: 1366 x 768 at 60
setup"
Hz
Perform automatic image
"Selecting a
setup. If automatic image supported display
setup does not help, mode" on page 2-6
perform manual image
setup
When working in the See the Advanced
native resolution, you section of your
may find additional system's display
improvements by properties
adjusting the Dots Per
Inch (DPI) setting on your
system
to access.