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50 Troubleshooting
Troubleshooting
Frequently asked questions (FAQ)
Imaging
The image is blurred.
• Read the instructions on the link
"Adjusting the Screen Resolution"
on the CD, and then
select the correct resolution, refresh rate and make adjustments based on these instructions.
• If a VGA extension cable is used, remove the extension cable for the test. Is the image now
in focus? If not, optimize the image by working through the instructions in the
"Adjusting
the refresh rate"
section on the link
"Adjusting the Screen Resolution"
. It is normal for
blurring to occur due to conduction losses in extension cables. You can minimize these
losses by using an extension cable with better conduction quality or with a built-in booster.
Does the blurring only occur at resolutions lower than the native (maximum) resolution?
Read the instructions on the link
"Adjusting the Screen Resolution"
on the CD.
Select the
native resolution.
Pixel errors can be seen.
One of several pixels is permanently black, one or more pixels are permanently white, one or
more pixels are permanently red, green, blue or another color.
• Clean the LCD screen.
• Cycle power on-off.
• These are pixels that are permanently on or off and is a natural defect that occurs in LCD
technology.
The image has a faulty coloration.
It has a yellow, blue or pink appearance.
Go to
Picture
and
Reset Color
, and then choose
YES
to reset the color settings to the
factory defaults.
If the image is still not correct and the OSD also has faulty coloration, this means one of the
three primary colors is missing in the signal input. Now check the signal cable connectors. If
any pin is bent or broken off, please contact your dealer to get necessary support.
The image is distorted, flashes or flickers.
Read the instructions on the link
"Adjusting the Screen Resolution"
on the CD, and
then
select the correct resolution, refresh rate and make adjustments based on these instructions.
You are running the monitor at its native resolution, but the image is still distorted.
Images from different input sources may appear distorted or stretched on the monitor running
at its native resolution. To have the optimal display performance of each type of input sources,
you can use the
Display Mode
function to set a proper aspect ratio for the input sources. See
Aspect Ratio
on page 40
for details.