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Onkyo CR-N1 Manual

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14. Outdoor Antenna Grounding – If an out-
side antenna or cable system is connected
to the appliance, 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 sup-
porting 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. See Figure 1.
15. Lightning – For added protection for the
appliance 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 appliance 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 out-
lets, extension cords, or integral conve-
nience receptacles as this can result in a
risk of fire or electric shock.
18. Object and Liquid Entry – Never push
objects of any kind into the appliance
through openings as they may touch dan-
gerous voltage points or short-out parts
that could result in a fire or electric shock.
Never spill liquid of any kind on the appli-
ance.
19. Servicing – Do not attempt to service the
appliance yourself as opening or remov-
ing covers may expose you to dangerous
voltage or other hazards. Refer all servic-
ing to qualified service personnel.
20. Damage Requiring Service – Unplug the
appliance form 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 liquid has been spilled, or objects
have fallen into the appliance,
C. If the appliance has been exposed to
rain or water,
D. If the appliance does not operate nor-
mally by following the operating
instructions. Adjust only those con-
trols 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
appliance to its normal operation,
E. If the appliance has been dropped or
damaged in any way, and
F. When the appliance exhibits a distinct
change in performance – this indicates
a need for service.
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 the appliance, ask the
service technician to perform safety
checks to determine that the appliance is
in proper operation condition.
23. Wall or Ceiling Mounting – The appliance
should be mounted to a wall or ceiling only
as recommended by the manufacturer.
24. Heat – The appliance should be situated
away from heat sources such as radiators,
heat registers, stoves, or other appliances
(including amplifiers) that produce heat.
FIGURE 1:
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE, ANSI/NFPA 70
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC – NATIONAL ELECTRICAL CODE
ELECTRIC
SERVICE
EQUIPMENT
GROUND
CLAMP
ANTENNA
LEAD IN
WIRE
S2898A
3 …


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