4
14. Ventilation — Slots and openings in the cabinet provide
ventilation, ensure reliable operation, and protect from
overheating. Do not block or cover these openings, and do
not place the product on a bed, sofa, rug, or other similar
surface. Do not place the product in a built-in installation
such as a bookcase or rack unless it provides proper
ventilation as specified by the manufacturer.
15. Power Sources — Operate this product using only the
power source indicated on its marking label. If you are not
sure of your home's power type, consult your product
dealer or local power company.
16. Polarization — This product is equipped with a polarized
AC line plug (a plug having one blade wider than the
other). This plug will fit in the power outlet only one way.
This is a safety feature. If you cannot insert the plug fully
into the outlet, try reversing the plug. If the plug still
doesn't fit, contact your electrician to replace your
obsolete outlet. Do not defeat the safety purpose of the
polarized plug. If you need an extension, use a polarized
cord.
17. Power-Cord Protection — Route power-supply cords so
they are not likely to be walked on or pinched by items
placed on or against them, paying particular attention to
cords at plugs, convenience receptacles, and the point
where they exit from the product.
18. Lightning — For added protection for this 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 product due to lightning and
power-line surges.
19. Overloading — Do not overload wall outlets, extension
cords, or integral convenience receptacles, as this can
result in a risk of fire or electric shock.
20. Objects and Liquids — 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.
21. 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.
22. Damage Requiring Service — Unplug this product from
the wall outlet and refer servicing to qualified service
personnel under the following conditions:
• When the power-supply cord or plug is damaged.
• If liquid has been spilled or objects have fallen into the
product.
• If the product has been exposed to rain or water.
• 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 qual-
ified technician to restore the product to normal opera-
tion.
• If the product has been dropped or damaged in any way.
• When the product exhibits a distinct change in
performance.
23. Replacement Parts — When replacement parts are
required, be sure the service technician uses 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.
24. Safety Check — Upon completion of service or repairs to
this product, ask the service technician to perform safety
checks to determine that the product is in proper
operating condition.
25. Wall or Ceiling Mount — The product should be mounted
to a wall or ceiling only as recommended by the
manufacturer.
26. Heat — The product should be situated away from heat
sources such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat.
27. Non-use Periods — Unplug the system’s power cord when
you will not use it for extended periods.
28. 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, 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.
Note to CATV System Installer
This reminder is provided to call the CATV system installer’s
attention to Section 820-40 of the NEC which provides
guidelines for proper grounding and, in particular, specifies
that the cable ground shall be connected to the grounding
system of the building, as close to the point of cable entry as
practical.
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.
