Manual Image Setup - Lenovo LI2821wA User Manual

Table 3-2. Troubleshooting
Problem
The power
indicator is
orange, 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. Press
2. Use or
3. Use or
4. Use or
• 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.
5. When the image no longer looks distorted, save the Clock and Phase adjustments.
6. Press
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.
at the bottom of the monitor to open the OSD menu.
to select and press
to select manual and press
to select Clock and Phase adjustment.
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: 1920 x
1080 at 60 Hz(VGA),3840 x
2160 at 30Hz(HDMI), 3840
x 2160 at 60Hz(DP)
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.
to access.
Reference
"Connecting and
turning on your
monitor"on page 1-6
"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
"Selecting a supported
display mode"on page
2-8
See the Advanced
section of your
system's display
properties.
3-4
Chapter 3.