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Important Safeguards (continued)
E-3
ELECTRIC
SERVICE
EQUIPMENT
GROUND CLAMP
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)
NEC – NATIONAL
ELECTRICAL CODE
FCC Warning: Any unauthorized changes or modifications to this equipment would void the user’s
authority to operate.
11. Grounding or Polarization — This video unit may be
equipped with either a polarized 2- wire AC
(Alternating Current) line plug (a plug having one
blade wider than the other) or 3-wire grounding type
plug, a plug having a third (grounding) pin.
The 2-wire polarized plug will fit into the power outlet
only one way. This is a safety feature. If you are unable
to insert the plug fully into the outlet, try reversing the
plug. If the plug still fails to fit, contact your electrician to
replace your obsolete outlet. Do not defeat the safety
purpose of the polarized plug.
The 3-wire grounding type plug will fit into a grounding
type power outlet. This is a safety feature. If you are
unable to insert the plug into the outlet, contact your
electrician to replace your obsolete outlet. Do not defeat
the safety purpose of the grounding type plug.
12. Power-Cord Protection — Power-supply cords should
be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
particular attention to cords of plugs, convenience
receptacles, and the point where they exit from the
unit.
13. Outdoor Antenna Grounding — If an outside antenna
or cable system is connected to the video unit, be sure
the antenna or cable system is grounded so as to
provide some protection against voltage surges and
built-up static charges. Part 1 of the Canadian
Electrical Code, in USA Section 810 of the National
Electrical Code, provides information with respect to
proper grounding of the mast and supporting 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.
14. Lightning — For added protection of this video unit
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 video unit due to lightning and power-line surges.
15. 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 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 outlets and
extension cords as this can result in a risk of fire or
electric shock.
17. Objects and Liquids — Never push objects of any kind
into this video unit 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 onto the video unit.
18. Servicing — Do not attempt to service this video unit
yourself as opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.
19. Damage Requiring Service — Unplug this video unit
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 any liquid has been spilled onto, or objects have
fallen into the video unit.
c. If the video unit has been exposed to rain or water.
d. If the video unit does not operate normally by
following the operating instructions.
Adjust only those controls that are covered by the
operating instructions, as an improper adjustment of
other controls may result in damage and will often
require extensive work by a qualified technician to
restore the video unit to its normal operation.
e. If the video unit has been dropped or the cabinet has
been damaged.
f. When the video unit 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 or
have the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric
shock or other hazards.
21. Safety Check — Upon completion of any service or
repairs to this video unit, ask the service technician to
perform safety checks to determine that the video unit
is in safe operating order.
For U.S.A. and Canada