19. Outdoor antenna grounding
If an outside antenna is connected to the product, 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 Electric Code ANSI/ NFPA 70
provides information with respect to proper grounding of the mast and
supporting structure, grounding of the lead- in wire to an antenna discharge
product, size of grounding conductors, location of antenna- discharge product,
connection to grounding electrodes and requirements for the grounding
electrodes.
20. Service
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.
21. Replacement parts
When replacement parts are required, be sure the service technician uses
replacement parts specified by the manufacturer or those that have the same
characteristics as the original parts. Unauthorized substitutions may result in
fire or 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 determine 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.
24. Damage requiring service
Unplug this product from the wall outlet and refer service to qualified service
personnel under the following conditions.
a)When the power- supply cord or plug is damaged.
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