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12
Outdoor
Antenna
Grounding--It
an outside
antenna
or
cable system
is connected
to the video product,
be sure
the antenna or cable system is grounded
so as to provide some
protection
against voltage surges and built-up static charges. Sec-
tion 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 example
below.
EXAMPLE OF ANTENNA GROUNDING
1 6
Lightning--For
added protection for this video product
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 product due to lightning and
power-line surges.
LEAD
IN
WI_E
• GROUNOING
CONDUCTORS
(NEC
SECTION
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ELECTRIC
SERVICE
EQUIPMENT
NEC
-
NATIONAL
ELECTRICAL
CODE
ELECTRODE
SYSTEM
(NEC
ART 250, PAR3" R)
13
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 fatl into such power
lines
or circuits.
When
installing an outside
antenna
system,
extreme care should be taken to keep from touching
or approach-
ing such power lines or circuits
as contact
with them might be
fatal. Installing
an outdoor antenna can be hazardous
and should
be left to a professional
antenna
installer.
USE
1 4
Cleaning--Unplug
this video product
Irom the walt outlet
before
cleaning.
Do not use liquid
cleaners
or aerosol
cleaners.
Use a damp
cloth for cleaning.
1 5
Object
and Liquid Entry--Never
push objects of any kind
into this video product 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 on the video
product.
SERVICE
1 7
Servicing--Do
not attempt
to service
fhis video product
yourself as opening or removing covers may expose you to
dangerous
voltage or other hazards.
Refer al! servicing
to quali-
fied service personnel.
1 8
Conditions
Requiring
Service--Unplug
this video product
from the wall outlet and refer servicing
to qua(tried 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.
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.
L When
the
video
product
exhibits
a
distinct
change
in
performance--this
indicates a need for service.
19
Replacement
Parts--When
replacement
parts
are
re-
quired,
have the service technician
verily that the replace-
ments he uses have the same safety characteristics
as the orig-
inal parts. Use of replacements
specified
by the video product
manufacturer
can prevent
fire, electric shock or other hazards.
20
Safety
Check--Upon
completion
of any service or repairs
to this video product,
ask the service technician
to perform
safety checks recommended
by the manufacturer
to determine
that the video product
is in sale operating condition.
-4--
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