LG 55EC930T Owner's Manual page 5

Generated Sound
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Cracking noise A cracking noise that occurs when watching
or turning off the TV is generated by plastic thermal
contraction due to temperature and humidity. This noise
is common for products where thermal deformation is
required.
Electrical circuit humming/panel buzzing A low level noise
is generated from a high-speed switching circuit, which
supplies a large amount of current to operate a product. It
varies depending upon the product.
This generated sound does not affect the performance and
reliability of the product.
Take care not to touch the ventilation openings. When
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watching the TV for a long period, the ventilation openings
may become hot. This does not affect the performance of
the product or cause defects in the product.
Do not install this product on a wall if it could be exposed
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to oil or oil mist. This may damage the product and cause it
to fall.
If the TV feels cold to the touch, there may be a small
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flicker when it is turned on. This is normal, there is nothing
wrong with TV. Some minute dot defects may be visible
on the screen, appearing as tiny red, green, or blue
spots. However, they have no adverse effect on the TV's
performance. Avoid touching the LCD screen or holding
your finger(s) against it for long periods of time. Doing so
may produce some temporary distortion effects on the
screen.
Preventing Image burn or Burn-in on your TV screen
If a fixed image displays on the TV screen for a long period
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of time, it will be imprinted and become a permanent
disfigurement on the screen. This is image burn or burn-in
and not covered by the warranty.
If the aspect ratio of the TV is set to 4:3 for a long period of
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time, image burn may occur on the letterboxed area of the
screen.
Avoid displaying a fixed image on the TV screen for a long
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period of time (1 or more hours for OLED) to prevent image
burn.
Preventing Screen Burn
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Displaying still images, such as a station's logo, subtitle,
screen menu, video game or computer screen, for a long
time may damage the screen, causing screen burn which
can remain for a long time or never disappear. Do not
display still images for over an hour.
IMPORTANT SAFETY INSTRUCTIONS
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