tion 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
– 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 lines surges.
– An outside antenna system
should not be located in the vicinity of over-
head 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
– Do not overload wall outlets,
extension cords, or integral convenience
receptacles as this can result in a risk of fi re or
19 Object and Liquid Entry
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 fi re or electric shock. Never spill
liquid of any kind on the product.
– 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 quali-
Damage Requiring Service – Unplug this
product from the wall outlet and refer servic-
ing to qualifi ed service personnel under the
When the power-supply cord or plug is
If liquid has been spilled, or objects have
If the product has been exposed to rain or
If the product does not operate normally
by following the operating instructions. Ad-
just 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 qualifi ed technician to restore
the product to its normal operation,
If the product has been dropped or dam-
When the product exhibits a distinct
change in performance – this indicates a
parts are required, be sure the service techni-
cian has used replacement parts specifi ed by
the manufacturer or have the same charac-
teristics as the original part. Unauthorized
substitutions may result in fi re, electric shock,
23 Safety Check – Upon completion of any 23 Safety Check
service or repairs to this product, ask the
service technician to perform safety checks
to determine that the product is in proper
24 Wall or Ceiling Mounting
should be mounted to a wall or ceiling only
as recommended by the manufacturer.
– The product should be situated away
from heat sources such as radiators, heat
registers, stoves, or other products (including
amplifi ers) that produce heat.