LG 43LF5710.APH Owner's Manual page 8

Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power
supply cord or plug is damaged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
If the product feels cold to the touch, there may be a small "flicker"
when it is turned on. This is normal, there is nothing wrong with
product.
The panel is a high technology display product with resolution of two
million to six million pixels. You may see tiny black dots and/or brightly
coloured dots (red, blue or green) at a size of 1 ppm on the panel. This
does not indicate a malfunction and does not affect the performance
and reliability of the product.
This phenomenon also occurs in third-party products and is not subject
to exchange or refund.
You may find different brightness and color of the panel depending on
your viewing position(left/right/top/down).
This phenomenon occurs due to the characteristic of the panel. It is not
related with the product performance, and it is not malfunction.
8
Displaying a still image (e.g., broadcasting channel logo, on-screen
menu, scene from a video game) for a prolonged time may cause
damage to the screen, resulting in retention of the image, which is
known as image sticking. The warranty does not cover the product for
image sticking.
Avoid displaying a fixed image on your television's screen for a
prolonged period (2 or more hours for LCD, 1 or more hours for Plasma).
Also, if you watch the TV at a ratio of 4:3 for a long time, image sticking
may occur on the borders of the panel.
This phenomenon also occurs in third-party products and is not subject
to exchange or refund.
Generated Sound
"Cracking" noise: A cracking noise that occurs when watching or turning
off the TV is generated by plastic thermal contraction due to tempera-
ture 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.
Do not use high voltage electrical goods near the TV (e.g. electric
mosquito-swatter). This may result in product malfunction.