4
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.
POLARIZATION
This video product is equipped with a polarized
alternating current line plug (a plug having one blade
wider than the other.) This 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 should still fail to fit, contact your
electrician to replace your obsolete outlet. Do not
defeat the safety purpose of the polarized plug.
OUTDOOR ANTENNA GROUNDING
•
If an outside antenna is connected to the
antenna terminal, be sure the antenna system
is grounded so as to provide some protection
against voltage surges and built-up static
charges.
•
In the U.S.A section 810 of the National
Electrical Code, ANSI/NFPA No. 70-1984,
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.
See the figure below.
ATTACHMENTS
Do not use attachments not recommended
by the video product manufacturer as they may
cause hazards.
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.
REPLACEMENT PARTS
When replacement parts are required, be sure the
service technician has used replacement parts
specified by the manufacturer or having the same
characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock or other
hazards.
SAFETY CHECK
Upon completion of any service or repairs
to this video product, ask the service technician to
perform safety checks to determine that the video
product is in proper operating condition.
DAMAGE REQUIRING SERVICE
Unplug this video 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 video product.
c. If the video product has been exposed to rain
or water
d. If the video product 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 product to its normal operation.
e. If the video product has been dropped
or the cabinet has been damaged.
f. When the video product exhibits a distinct
change in performance - this indicates
a need for service.
HEAT
This video unit should be situated away from heat
sources such as radiators, 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
PREP
ARA
TION
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