Lenovo L215 用户手册

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页码 33
 3-4
L215 Wide Flat Panel Monitor User’s Guide
 
 
 
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 
 
 to select 
 
 and press   to access.
3. 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.
4. When the image no longer looks distorted, save the Clock and Phase adjustments.
5. Press 
 
 to leave the OSD menu.
The power 
indicator is blue, 
but there is no 
image.
The video signal cable 
is loose or 
disconnected from the 
system or monitor.
Be sure the video cable is 
connected with the 
system properly.
The monitor 
brightness and 
contrast are at the 
lowest setting.
Adjust the brightness and 
contrast setting on the 
OSD menu.
One or more of 
the pixels appear 
discolored
This is a characteristic 
of the LCD 
technology and is not 
an LCD defect.
If there are more than five 
pixels missing, contact 
the Support Center.
Fuzzy lines 
in text or a 
blurry 
image.
Horizontal 
or vertical 
lines 
through the 
image.
Image setup has 
not been 
optimized
Your system 
Display 
Properties setting 
have not been 
optimized.
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.
See the Advanced 
section of your 
system’s display 
properties.
Table 3-2. 
Troubleshooting
Problem
Possible cause
Suggested action
Reference