9
15.
Outdoor Antenna Grounding - If an outside antenna is connected to the receiver, 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, ANSI/
NFPA No. 70, 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 Figure 1.
16.
Nonuse Periods - The power cord of the appliance should be unplugged from the outlet
when left unused for a long period of time.
17.
Object and Liquid Entry - Care should be taken so that objects do not fall, and liquids
are not spilled, into the enclosure through openings.
18.
Damage Requiring Service - The appliance should be serviced by qualified service
personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled, into the appliance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or exhibits a marked change in
performance, or
E. The appliance has been dropped, or the enclosure damaged.
19.
Servicing - The user should not attempt to service the appliance beyond that described
in the operating instructions. All other servicing should be referred to qualified service
personnel.
