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ing 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).
15. Lightning: For added protection for this product, unplug it from the
wall outlet and disconnect the antenna or cable system during a
lightning storm or when it is left unattended and unused for long pe-
riods of time. This will prevent damage to the product due to lightning
or power-line surges.
16. Power Lines: An outside antenna system should not be located in the vi-
cinity 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 out-
side antenna system, extreme care should be taken to keep from touch-
ing such power lines or circuits, as contact with them might be fatal.
17. Overloading: Do not overload wall outlets, extension cords, or integral
convenience receptacles as this can result in a risk of fire or electric shock.
18. Object and Liquid Entry: Never push objects of any kind into this prod-
uct 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 product.
19. Servicing: Do not attempt to service this product yourself as open-
ing or removing covers may expose you to dangerous voltage or other
hazards. Refer all servicing to qualified service personnel.
20. Damage Requiring Service: Unplug this product from the wall outlet
and refer servicing to qualified service personnel under the follow-
ing conditions: a) when the power-supply or plug is damaged; b) if
liquid has been spilled or if 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
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 technician to restore the
product to its normal operation; e) if the product has been dropped or
damaged in any way; f) when the product exhibits a distinct change in
performance—this indicates a need for service.
21. Replacement Parts: When replacement parts are required, be sure
that your service technician has used replacement parts specified
by the manufacturer or have the same characteristics as the original
part. Unauthorized substitutions may result in fire, electric shock, or
other hazards.
22. Safety Check: Upon completion of any service or repairs to this
product,ask the service technician to perform safety checks to
ensure that the product is in proper operating condition.
23. Wall or Ceiling Mounting: The product should be mounted to a wall or
ceiling only as recommended by the manufacturer.
Summary of Contents for NF-900
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