Zenith B27A34Z, Operating Manual

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206-3481
P A G E 4
(Continued from previous page)
14. Outdoor Antenna Grounding
If an outside antenna or cable system is connected to the
product, be sure the antenna or cable system is grounded
so as to provide some protection against voltage surges
and built-up static charges. Article 810 of the National
Electrical Code (U.S.A.), ANSI/ NFPA 70 provides
information with regard 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.
15. Lightning
For added protection for this product (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 product due to lightning and power-line
surges.
16. 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.
17. Overloading
Do not overload wall outlets and extension cords as this
can result in a risk of fire or electric shock.
18. Object and Liquid Entry
Never push objects of any kind into this 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 product.
19. 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.
20. Damage Requiring Service
Unplug this product from the wall outlet and refer servic-
ing to qualified service personnel under the following
conditions:
a. If the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen into
the product.
c. If the product has been exposed to rain or water.
d. If the 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 product to its normal operation.
e. If the product has been dropped or the cabinet has
been damaged.
f. If the product exhibits a distinct change in
performance.
21. 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.
22. Safety Check
Upon completion of any service or repairs to this product,
ask the service technician to perform safety checks to
determine that the product is in proper operating
condition.
23. Wall or Ceiling Mounting
The product should be mounted to a wall or ceiling only as
recommended by the manufacturer.
24. Heat
The product should be situated away from heat sources
such as radiators, heat registers, stoves, or other products
(including amplifiers) that produce heat.
Antenna Lead in Wire
Antenna Discharge Unit
(NEC Section 810-20)
Grounding Conductor
(NEC Section 810-21)
Ground Clamps
Power Service Grounding
Electrode System (NEC
Art 250, Part H)
Ground Clamp
Electric Service
Equipment
Example of Grounding According to National Electrical
Code Instructions
NEC - National Electrical Code
IMPORTANT SAFETY INSTRUCTIONS