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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.
