LG Electronics 50PJ340, 50PJ350, 50PJ250, 42PJ350 Dot Defect, ANTENNAS Outdoor antenna grounding

20 ANTENNAS

Outdoor antenna grounding

If an outdoor antenna is installed, follow the precautions below. An outdoor antenna system should not be located in the vicinity of over- head power lines or other electric light or power circuits, or where it can come in contact with such power lines or circuits as death or serious injury can occur.

Be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges.

Section 810 of the National Electrical Code (NEC) in the U.S.A. provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna dis- charge unit, connection to grounding elec- trodes and requirements for the grounding electrode.

Antenna grounding according to the National Electrical Code, ANSI/NFPA 70

NEC: National Electrical Code

21 Cleaning

When cleaning, unplug the power cord and scrub gently with a soft cloth to prevent scratching. Do not spray water or other liquids directly on the TV as electric shock may occur. Do not clean with chemicals such as alcohol, thinners or benzene.

22 Moving

Make sure the product is turned off, unplugged and all cables have been removed. It may take 2 or more people to carry larger TVs. Do not press against or put stress on the front panel of the TV.

23	Ventilation
	Install your TV where there is proper ventila-
	tion. Do not install in a confined space such as
	a bookcase. Do not cover the product with
	cloth or other materials (e.g.) plastic while
	plugged in. Do not install in excessively dusty
	places.
24	Take care not to touch the ventilation open-
	ings. When watching the TV for a long period,
	the ventilation openings may become hot.
25	If you smell smoke or other odors coming from
	the TV or hear strange sounds, unplug the power
	cord contact an authorized service center.
26	Do not press strongly upon the panel with
	hand or sharp object such as nail, pencil or

pen, or make a scratch on it. Do not allow a impact shock onto the panel.

27	Keep the product away from direct sunlight.
28	Dot Defect
	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’reviewing the TV. Those dots are deactivated pixels and do not affect the performance and reliability of the TV.

29 Generated Sound

“Cracking” noise: A cracking noise that occurs when watching or turning off the TV is gener- ated by plastic thermal contraction due to temperature and humidity. This noise is com- mon 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 generat- ed sound does not affect the performance and reliability of the product.

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