Panasonic TU-IRD20 manual Iii

12 Outdoor Antenna Grounding—If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/ NFPA No. 70-1984 (Section 54 of Canadian Electrical Code, PartÊ1) 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- discharge unit, connection to grounding electrodes, and requirements for the grounding electrode. See example below.

16Lightning—For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product due to lightning and power line surges.

Service

17	Servicing—Do not attempt to service this product
	yourself as opening or removing covers may
	expose you to dangerous voltage or other
	hazards. Refer all servicing to qualified service
	personnel.
18	Conditions Requiring Service—Unplug this
	product from the wall outlet and refer servicing

ELECTRIC SERVICE EQUIPMENT

A N T E N N A

LEAD IN

WIRE

GROUND CLAMP

ANTENNA DISCHARGE UNIT (NEC SECTION 810 - 20)

GROUNDING CONDUCTORS (NEC SECTION 810 - 21)

GROUND CLAMPS

POWER SERVICE GROUNDING ELECTRODE SYSTEM

(NEC ART 250, PART H)

to qualified service personnel under the following

conditions.

A. When the power-supply cord or plug is

damaged.

B. If liquid has been spilled, or objects have fallen

into the product.

C. If the product has been exposed to rain or

water.

D. If the product does not operate normally by

following the operating instructions. Adjust

Example of Antenna Grounding

13 Power Lines—An outside antenna system should not be located in the

vicinity of overhead power lines, other electric light or power circuits, or where it can fall

into such power

lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching or approaching such power lines or circuits as contact with them might be fatal. Installing an outdoor antenna can be hazardous and should be left to a professional antenna installer.

Use

14Cleaning—Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.

15Object and Liquid Entry—Never push objects of any kind into this product through openings as they may touch dangerous voltage or “short-out” parts that could result in a fire or electric shock. Never spill liquid of any kind on the product.

	only those controls that are covered by the
	operating instructions. Improper adjustment
	of other controls may result in damage and
	will often require extensive work by a qualified
	technician to restore the product to its normal
	operation.
E.	If the product has been dropped or the cabinet
	has been damaged.
F.	When the product exhibits a distinct change
	in performance, such as the inability to
	perform basic functions—this indicates a need
	for service.
19 Replacement Parts—When replacement parts
are required, have the service technician verify
that the replacement parts he uses have the same
safety characteristics as the original parts. Use of
replacements specified by the product
manufacturer can prevent fire, electric shock, or
other hazards.
20 Safety Check—Upon completion of any service
or repairs to this product, ask the service
technician to perform safety checks recom-
mended by the manufacturer to determine that
the product is in safe operating condition.

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