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9.Ventilation-Slots and openings in the cabinet and the back
or bottom are provided for ventilation and to ensure reliable
operation of the unit and to protect it from overheating, and
these openings must not be blocked o1"covered. The open-
ings should never be blocked by placing the unit on a bed,
sofa, rug, or other sindlar sud'ace. This unit should never be
placed near or over a radiator or heat register. This unit
should not be placed in a built-in installation sucb as a
bookcase or rack unless proper ventilation is provided or
the manulacturer's instructionshave been adbered to.
10.Power Sources-This unit should be operated only from the
type of power source indicated on tbe marking label. If you
are not sure of tile type of power supply to your borne, con-
sult your appliance dealer or local power company. For the
units intended to operate flora batte W power, or other
somves, refer to the operating instructions.
ll.C, rounding or Polarization-This
unit is equipped with a
polarized alternating-current lille plug(a plug having one
blade wider than tbe other). This plug will fit into the
power outlet only one way. This is a safety t)atule. If yon
are unable to insert the plug fully into the outlet, try revers-
ing the plug. If the plug should still fail to fit, contact your
electrician to replace your obsolete outlet. Do not defeat the
safety purpose of the polarized plug.
12.Power-Cord Protection-Power-supply
cords should be
muted so that they are not likely to be walked on or
pinched by items placed upon or against them, paying par-
ticular attention to cords at plugs, convenience receptacles,
and the point where they exit from the appliance.
13.Outdoor Antenna grounding-If an outside antenna or
cable system is connected to the unit, be sure the antenna
or cable system is grounded so as to provide some protec-
tion against voltage surges and built-up static chai_.es.
Article 81(t of the National Electrical ('ode, ANSI/NFPA
No. 70, provides information with respect to proper
grounding of the mast and supporting structure, grounding
of the lead-in wire to an antenna discbarge unit, size of
grounding conductors, location of antenna-dischai_ze unit,
connection to grounding electrodes, and requirements flor
the grounding electrode. (Fig. A)
FIGURE
A
EXAMPLE
OF ANTENNA
GROUNDING
AS PER
NATIONAL ELECTRICAL CODE
ELECTRIC
SERVICE
GROUND
CLAMP_,
LEADIN
WIRE
ANTENNA
DISCHARGE
UNIT
{NEC SECTION
810-20)
GROUNDING
CONDUCTORS
(NEC SECTION
810-21)
14.Lightning-For added protection for this unit receiver dur-
ing a lightning storm, or when it is left unattended and
unused for long periods of trine, unplug it from tile wall
outlet and disconnect the antenna or cable system. This will
prevent damage to the unit due to lightning and poweMiue
surges.
l&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 cilv'UitSas contact with them
might be fatal.
16.Overloading-Do
not overload wall outlets and extension
cords as this call result in a risk of fire or electric shock.
17.Object and Liquid Entry-Never push objects of ally kind
into this unit tbrough openings as they may touch danger-
ous voltage points or short out parts that could result in a
fire or electric shock. Never spill liquid of any kind on tbe
unit.
18.Servicing-Do not attempt to service this unit yourself as
opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified
service
persolmel.
19.Damage Requiring Service-Unplug this unit fl'om the wall
outlet and refer selwicing to qualified service personnel
under the following conditions:
a. Wben the power-supply cord or plug is damaged or fi'ayed.
b. If liquid has been spilled, or objects have fallen into the
unit.
c. If tbe unit has been exposed to rain or water.
d. If tbe unit does not operate normally by following the oper-
ating 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 won by a qualified tecbnician to restore
tbe unit to its normal operation.
e. If tbe unit has been dropped or damaged in any way.
f. When the 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 tile manufacturer that have tbe same character-
istics as the original part. Unauthorized substitutions may
result in fire, electric shock, injury to persons or otber baz-
ards.
21.Safety Check-Upon completion of any service or repairs to
tbis unit, ask the service technician to perform routine sat)-
ty checks to determine that the unit is in proper operating
condition.
22.Heat-This unit product should be situated away fl'om heat
sources such as radiators, beat registers, stoves, or other
products (including amplifiers) that produce heat.
NEC- NATIONAL ELECTRICALCODE
$2898A
ELECTRODE
SYSTEM
{NEC ART 250,
PART N)
- 3 -
EN
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