Symphonic SC513DF owner manual S2 8 9 8 a

FIGURE A

EXAMPLE OF ANTENNA GROUNDING AS PER

NATIONAL ELECTRICAL CODE

				ANTENNA
				L EAD I N
				W I R E
	GROUND
	C L A M P
				ANTENNA
				DI SCHARG E UN I T
				(NEC SECTION 8 10 -2 0)
EL ECTRI C
SE RV I CE
EQ U I PMEN T
				G RO UNDI NG CO NDUCTORS
				(NEC SECTION 8 10 -2 1)
			G RO UND CL AMPS
NEC - NATI O NAL EL ECTRI CAL CO DE		POWER SERVI C E G RO UNDI NG
		EL EC TR O DE SYSTEM
S2 8 9 8 A		(NEC ART 2 50 , PART H)

13.Outdoor Antenna grounding - If an outside antenna or cable system is connected to the unit, be sure the anten- na or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA No. 70, provides information with respect to proper grounding of the mast and supporting struc- ture, grounding of the lead-in wire to an antenna dis- charge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding elec- trodes, and requirements for the grounding electrode. (Fig. A)

14.Lightning - For added protection for this unit receiver 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 unit due to lightning and power-line surges.

15.Power Lines - An outside antenna system should not be located in the vicinity of overhead power lines or 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 such power lines or circuits as contact with them might be fatal.

16.Overloading - Do not overload wall outlets and exten- sion cords as this can result in a risk of fire or electric shock.

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

18.Servicing - Do not attempt to service this unit yourself as opening or removing covers may expose you to dan- gerous voltage or other hazards. Refer all servicing to qualified service personnel.

19.Damage Requiring Service - Unplug this unit from the wall outlet and refer servicing to qualified service per- sonnel under the following conditions:

a.When the power-supply cord or plug is damaged or frayed.

b.If liquid has been spilled, or objects have fallen into the unit.

c.If the unit has been exposed to rain or water.

d.If the unit does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions, as improper adjustment of other controls may result in damage and will often require extensive work by a qualified techni- cian to restore the unit to its normal operation.

e.If the unit has been dropped or damaged in any way.

f.When the unit exhibits a distinct change in performance, this indicates a need for service.

20.Replacement Parts - When replacement parts are required, be sure the service technician has used replace- ment parts specified by the manufacturer that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, injury to persons or other hazards.

21.Safety Check - Upon completion of any service or repairs to this unit, ask the service technician to perform routine safety checks to determine that the unit is in proper operating condition.

22.Heat - This unit product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat.

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