5
INTRODUCTION
IMPORTANT SAFETY INSTRUCTIONS (Cont’d)
14. Outdoor Antenna Grounding
If an outside antenna or cable system is con-
nected to the product, be sure the antenna 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 (U.S.A), ANSI/NFPA
70 provides information with regard to proper
grounding of the mast and supporting struc-
ture, grounding of the lead-in wire to an anten-
na discharge unit, size of grounding conduc-
tors, location of antenna-discharge unit, con-
nection to grounding electrodes, and require-
ments for the grounding electrode.
15. Lightning
For added protection for this product (receiver)
during a lightning storm, or when it is left unat-
tended 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 product due to lightning and
power-line surges.
16. 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 cir-
cuits. When installing an outside antenna sys-
tem, extreme care should be taken to keep
from touching such power lines or circuits as
contact with them might be fatal.
17. Overloading
Do not overload wall outlets and extension
cords as this can result in a risk of fire or elec-
tric shock.
18. Object and Liquid Entry
Never push objects of any kind into this prod-
uct through openings as they may touch dan-
gerous 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 opening or removing covers may expose
you to dangerous voltage or other hazards.
Refer all servicing to qualified service person-
nel.
20. Damage Requiring Service
Unplug this product from the wall outlet and
refer servicing to qualified service personnel
under the following conditions:
a. If 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 improper adjust-
ment 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 cabi-
net has been damaged.
f. If the product exhibits a distinct change in
performance.
21. Replacement Parts
When replacement parts are required, be sure
the 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 per-
form safety checks to determine that the prod-
uct is in proper operating condition.
23. Heat
The product should be situated away from heat
sources such as radiators, heat registers,
stoves, or other products (including amplifiers)
that produce heat.
Antenna Lead in Wire
Antenna Discharge Unit
(NEC Section 810-20)
Grounding Conductors
(NEC Section 810-21)
Ground Clamps
Power Service Grounding
Electrode System
(NEC Art 250, Part H)
Ground
Clamp
Electric Service
Equipment
NEC - NATIONAL ELECTRICAL CODE
EXAMPLE OF GROUNDING ACCORDING TO
NATIONAL ELECTRICAL CODE INSTRUCTIONS