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voltage points or short out parts that could result in
fire or electric shock. Never spill or spray any type
of liquid on the product.
17. OUTDOOR ANTENNA GROUNDING
If an outside antenna is connected to the prod-
uct, 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 dis-
charge product, size of grounding conductors,
location of antenna discharge product, connec-
tion to grounding electrodes and requirements
for grounding electrodes.
18. SERVICING
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.
19. 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 part.
Unauthorized substitutions may result in fire,
electric shock or other hazards.
20. 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.
21. WALL OR CEILING MOUNTING
The product should be mounted to a wall or ceil-
ing only as recommended by the manufacturer.
22. DAMAGE REQUIRING SERVICE
Unplug the product from the wall outlet and refer
servicing to qualified service personnel under
the following conditions:
a. When the power-supply cord or plug is
damaged.
b. If liquid has been spilled or 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 an 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 the
cabinet has been damaged.
f. When the product exhibits a distinct change
in performance this indicates a need for
service.
23. HEAT
The product should be situated away from heat
sources such as radiators, heat registers, stoves
or other products (including amplifiers) that pro-
duce heat.
24. NOTE TO CATV SYSTEM INSTALLER
This reminder is provided to call the CATV sys-
tem installer's attention to Article 820-40 of the
NEC that provides guidelines for proper ground-
ing and, in particular, specifies that the cable
ground shall be connected to the grounding sys-
tem of the building, as close to the point of cable
entry as practical.
ANTENNA
LEADIN
WIRE
ANTENNA
DISCHARGEUNIT
(NECSECTION810-20)
GROUNDINGCONDUCTORS
(NECSECTION810-21)
GROUNDCLAMPS
POWERSERVICEGROUNDING
ELECTRODESYSTEM
(NECART250,PARTH)
NEC-NATIONALELECTRICALCODE
ELECTRIC
SERVICE
EQUIPMENT
GROUND
CLAMP
S2898A
EXAMPLE OF ANTENNA GROUNDINGAS PER
NATIONAL ELECTRICAL CODE
SAFETY INSTRUCTIONS