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antenna-discharge unit, connection to
grounding electrodes, and requirements for
the grounding electrode.
14. Lightning — For added protection for this
TV/VCR 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
TV/VCR due to lightning and power-line
surges.
15. Power Lines — An outside antenna sys-
tem 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 out-
lets and extension 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 TV/VCR
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 TV/VCR.
18. Servicing — Do not attempt to service this
TV/VCR yourself as opening or removing
covers may expose you to dangerous volt-
age or other hazards. Refer all servicing to
qualified service personnel.
19. Damage Requiring Service — Unplug this
TV/VCR from the wall outlet and refer ser-
vicing to qualified service personnel under
the following conditions:
• When the power-supply cord or plug is
damaged or frayed.
• If liquid has been spilled or objects have
fallen into the TV/VCR.
• If the TV/VCR has been exposed to rain
or water.
• If the TV/VCR does not operate normally
by following the operating instructions.
Adjust only those controls that are cov-
ered 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 TV/VCR to its
normal operation.
• If the TV/VCR has been dropped or the
cabinet has been damaged.
• When the TV/VCR 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 replacement 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 TV/VCR, ask the
service technician to perform routine safety
checks to determine that the TV/VCR is in
proper operating condition.
22. Heat — This TV/VCR product should be
situated away from heat sources such as
radiators, heat registers, stoves, or other
products (including amplifiers) that produce
heat.
GROUND CLAMPS
NEC - NATIONAL ELECTRICAL CODE
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE
S2898A
WIRE
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTOR
S
(NEC SECTION 810-21)
ELECTRODE SYSTEM
(
NEC ART 250
,
PART H
)
SERVICE
EQUIPMENT
CLAMP
ANTENNA
LEAD IN
ANTENNA
POWER SERVICE GROUNDING
GROUND
ELECTRIC
FIGURE A
16-429.fm Page 5 Tuesday, July 20, 1999 3:50 PM