Samsung LA32E420 E-Manual page 187

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Issues
Plasma TV is
making humming
noise.
for PDP TV
Image Retention (Burn
In) Issue.
for PDP TV
Solutions and Explanations
Plasma TVs typically make a soft humming sound. This is normal. It's
caused by the electrical charges that are used to create the images on
the screen.
If the humming sound is loud, you may have set the brightness on the
TV too high. Try setting the brightness lower.
You can also have loud humming if the back of your Plasma TV is too
close to a wall or other hard surface. Also try rerouting your connection
cables.
Improper installation of wall mount can create excessive noise.
To minimize the possibility of screen burn, this unit is equipped with
Pixel Shift screen burn reduction technology. Pixel Shift lets you set the
picture so it moves slightly up and down (Vertical Line) and side to side
(Horizontal Dot). The regular, slight movement of the picture reduces
screen burn in.
English

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