Lenovo 3833-HB3 Benutzerhandbuch - Seite 24
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Table 3-2. Troubleshooting
Problem
The power indicator is
amber, 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
at the bottom of the monitor to open the OSD menu.
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.
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.
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 1-4
"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
"Selecting a supported
display mode"on page
2-7
See the Advanced
section of your system's
display properties.
Chapter 3. 3-4