Manual Image Setup - Lenovo ThinkVision D186 User Manual

Table 3-2. Troubleshooting

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
D186 Wide Flat Panel Monitor User's Guide
Problem Possible cause
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
• Fuzzy lines • Image setup has
in text or a not been
blurry optimized
image
• Your system
• Horizontal Display
or vertical Properties setting
lines have not been
through the optimized
image
Press at the bottom of the monitor to open the OSD menu.
Use or to select
Use or to select C C lock and P P hase adjustment.
• C C lock (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.
• P P hase 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
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 Support Center
Adjust the resolution
settings on your system
to match the native
resolution for this
monitor: 1366 x 768 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
and press to access.
Reference
"Connecting and
turning on your
monitor" on page 1-3
"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