13.Lightning
For added protection for this TV 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 receiver
due to lightning and power-line surges.
14. 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.
15. Overloading
Do not overload wall outlets and extension
cords as this can result in a risk of fire or
electric shock.
16. Object and Liquid Entry
Never push objects of any kind into this TV
receiver 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 TV
receiver.
17. Outdoor Antenna Grounding
If an outside antenna or cable system is
connected to the TV receiver, be sure the
antenna or cable system is grounded so as to
provide some protection against voltage
surges and built-up static charges.
EXAMPLE OF ANTENNA GROUNDING
ENNA
LEAD IN WIRE
NEC -- NATIONAL ELECTRICAL CODE
NNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING
CONDUCTORS
~(NEC SECTION 810.21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
ii
Section 810 of the National Electrical
Code, ANSUNFPA No.70, provides infor-
mation with regard to proper grounding of
the mast and supporting structure,
groundling of the lead-in wire to an an-
tenna discharge unit, size of grounding
conductors, location of antenna discharge
unit, connection to grounding electrodes,
and requirements for the grounding
electrode.
18.
Servicing
Do not attempt to service this TV :receiver
yourself as opening o:r removing covers
may expose you to dangerous voltage or
other hazards. Refer all servicing to
qualified service personnel.
19.
Damage Requiring Service
Unplug this TV receiver from the wall
outlet and refer se_icing to qualified
service personnel under the following
conditions:
(a) When the power-s_pply cord or plug is
damaged.
(b) If liquid has been spilled, or objects
have fallen into the TV receiver.
(c) If the TV receiw_r has been exposed to
rain or water.
(d) If the TV receiver 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 con-
trols may result in damage and will
often require exLe_]sive work by a
qualified technician to restore the 'IW
receiver to its notarial operation.
(e) If the TV receiw_r has been dropped or
the cabinet has been damaged.
(f) When the TV receiver exhibits a distinct
change in perfo_zn ance- 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 manu-
facturer or have the same characteristics
as the original part. Unauthorized substi-
tutions may result in fire, electric: shock or
other hazards.
21.
Safety Check
Upon completion c,f any service or repairs
to this TV receiver, ask the service techni-
cian to perform safety checks to determine
that the TV receiver is in safe operating
conditions.
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