Chapter 3. 3-4
Table 3-2.
Troubleshooting
Problem
Possible cause
Suggested action
Reference
The power indicator is
amber, 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�
"Connecting and turning
on your monitor"on
page 1-4
The monitor brightness
and contrast are at the
lowest setting�
Adjust the brightness
and contrast setting on
the OSD menu�
"Adjusting your monitor
image"on page 2-3
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�
Appendix A�"Service
and Support"on page
A-1
•
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: 2560 x 1440 at
60 Hz�
"Adjusting your monitor
image"on page 2-3
Perform automatic
image setup� If
automatic image setup
does not help, perform
manual image setup�
"Selecting a supported
display mode"on page
2-7
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�
Manual image setup
If automatic image setup does not establish the image that you prefer, perform manual image setup�
(For VGA [analog] only)
Note:
Have your monitor powered on for about 15 minutes, until the monitor warms up�
1� Press to open the OSD menu�
2� Use or to select
and press to access�
3� Use or to select manual and press to access�
4� Use or to select
Clock
and
Phase
adjustment�
5�
When the image no longer looks distorted, press Enter to save the adjustments of
Clock
and
Phase
�
6� Press
to leave the OSD menu�
• 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�
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