Outdoor Antenna Grounding, Attachments

VCD-311M 5/23/03 9:12 Page 5

OUTDOOR ANTENNA GROUNDING

•If an outside antenna is connected to the antenna terminal, be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges.

•In the U.S.A section 810 of the National Electrical Code, ANSI/NFPA No. 70-1984, 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 the figure below.

ATTACHMENTS

•Do not use attachments not recommended by the video product manufacturer as they may cause

hazards.

ANTENNA

LEAD IN WIRE

GROUND

CLAMPANTENNA DISCHARGE UNIT (NEC SECTION. 810-20)

SAFETY CHECK

•Upon completion of any service or repairs to this video product, ask the service technician to perform safety checks to determine that the video product is in proper operating condition.

DAMAGE REQUIRING SERVICE

•Unplug this video product from the wall outlet and refer servicing 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 video product.

c. If the video product has been exposed to rain or water d. If the video product does not operate normally by

following the operating instructions. Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the video product to its nor- mal operation.

e. If the video product has been dropped or the cabinet has been damaged.

f.When the video product exhibits a distinct change in performance - this indicates a need for service.

ELECTRIC	GROUNDING CONDUCTORS
SERVICE	(NEC SECTION 810-21)
EQUIPMENT	GROUND CLAMPS
	GROUND CLAMPS

POWER SERVICE GROUNDING ELECTRODE SYSTEM

(NEC ART 250, PART H)

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.

REPLACEMENT PARTS

•When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or having the same charac- teristics as the original part. Unauthorized substitutions may result in fire, electric shock or other haz- ards.