LG 55EA980T Owner's Manual page 5

Dot Defect
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The Plasma or LCD panel is a high technology product with
resolution of two million to six million pixels. In a very few
cases, you could see fine dots on the screen while you're
viewing the TV. Those dots are deactivated pixels and do
not affect the performance and reliability of the TV.
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 on 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.
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.
IMPORTANT SAFETY INSTRUCTIONS
5