Lenovo ThinkVision E20-30 User Manual page 28

Problem
•Blurred lines or images
in text
•Horizontal or vertical
lines are present in the
image.
Manual Image Settings
If the automatic picture setting does not provide a picture you are satisfied with, you can
perform a manual picture setting. (VGA [Analog] only)
Note: Turn on the power to the display and wait for about 15 minutes to allow the display
to warm up.
1. Press
2. Use
3. Use
4. Use
Clock: (pixel frequency) adjusts the number of pixels that can be scanned in one horizontal
scan. If the frequency is incorrect, vertical bars may appear on the screen and the picture
width may be incorrect.
Phase: adjusts the phase of the pixel clock signal. When the phase is not adjusted correctly,
horizontal disturbances may appear in the bright picture.
5. When the image no longer looks distorted, press Enter to save the Clock and Phase
adjustments.
6. Press
Possible Causes
•Image settings are
not optimized
•The system's display
property settings are
not optimized.
to open the OSD menu.
or to select "Advanced Settings", and press
or to select "Auto Settings", and press
or to select Clock or Phase, and then use
to exit the OSD menu.
Recommended
Operations
Adjust the system's
resolution setting to the
resolution of this display:
1600x900 @60 Hz.
Perform the automatic
image setting. If the
automatic image setting
does not work, perform
the manual image setting.
When using its
resolution, adjusting the
Dots Per Inch (DPI, dots
per inch) setting on the
system can further
improve it.
.
to access.
or to adjust the value.
Chapter 3. Reference Information 3-4
Refer to
"Adjusting the
Display Image"
on pages 2-3
"Select Support
Display Mode"
on pages 2-7
See the
Advanced
section of
System Display
Properties.