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13.Lightning—For added protection of this product
during a lightning storm, or when it is left unattended
and unused for long periods of time, disconnect it
from the wall outlet. This will prevent damage to the
product 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.Objects 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. Be
careful not to spill liquid of any kind onto the
product.
17.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.
18.Damage Requiring Service—Disconnect the product
from the wall outlet and refer servicing to qualified
service personnel under the following conditions:
a. When the power-supply cord or plug is
damaged.
b. If any liquid has been spilled onto, 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 even if
you follow the operating instructions, adjust
only those controls that are covered by the
operation instructions. 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. When the product exhibits a distinct change in
performance. This indicates a need for service.
19.Replacement Parts—When replacement parts are
required, be sure the service technician has used
replacement parts that are specified by Canon or
that have the same characteristics as the original
part. Unauthorized substitutions may result in fire,
electric shock or other hazards.
20.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 safe operating order.
Example of antenna grounding
as per National Electrical Code
Antenna lead-in wire
Ground clamp
Antenna discharge unit
(NEC section 810-20)
Grounding conductors
(NEC section 810-21)
Electric Service
Equipment
Ground clamps
NEC—National Electric Code
Power service grounding
electrode system
(NEC art 250, part H)
Fig. 1