Kenwood KR-A57R Instruction Manual page 4

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11. Magnetic fields — Keep the units away from
a source of magnetic fields such as TV sets,
speaker systems, radios, motorized toys or mag-
netized objects.
12. Cleaning — Do not use volatile solvents such as
alcohol, paint thinner, gasoline, benzine, etc. to
clean the cabinet. Use a clean dry cloth.
13. Nonuse periods — The power cord of the unit
should be unplugged from the outlet when left
unused for a long period of time.
14. Abnormal
smell — lf an
abnormal
smell
or
smoke is detected, immediately turn the power
OFF and pull out the power cord. Contact your
dealer or nearest service station.
POWER
OFF!
BOO.
eT
ee
15. Damage requiring service — The unit should
be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been
damaged: or
B. Objects have fallen, or liquid has been spilled
into the unit: or
C. The unit has been exposed to rain; or
D. The unit does not appear to operate normally
or exhibits
a marked change in performance; or
E. The unit has been dropped, or the enclosure
damaged.
16. Servicing -— The user should
not attempt
to
service the unit beyond that described in the
operating instructions. All other servicingshould
be referred to qualified service personnel.
17. Outdoor antenna grounding - If an outside
antenna is connected to the receiver, be sure the
antenna
system
is grounded
so as to provide
some protection against voltage surges and built
up static charges. Section 810 of the National
Electrical Code, ANSI/NFPA
No. 70 - 1984,
provides
information
with
respect
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. See Figure.
o
Use
No.10
AWG
(5.3 mm?)
copper,
No.8
AWG
(8.4
mm?)
aluminum, No.17 AWG {1.0 mm?) copper-clad steel or bronze wire.
or larger, as a ground wire.
s
Secure antenna lead-in and ground wires to house with stand-off
insulators spaced from 4 - 6 feet (1.22 - 1.83 m) apart.
°
Mount antenna discharge unit as close as possible to where lead-in
enters house.
a
Use jumper wire not smaller than No.6 AWG
(13.3 mm?) copper,
or the equivalent, when a separate antenna-grounding electrode
is used. See NEC Section 810-2 1(j).
18.
Power lines — An outdoor antenna should be
located away from power lines.
Notes:
POWER LINES
SERVICE ENTRANCE
CONDUCTORS
STANOOFF
INSUIA TORS?
MAST
SERVICE
ENTRANCE
EQUIPMENT
ANTNINA
LEADING WIRE
ANTENKA
DISCHAKG E
UNITS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(e.g. interior metal water pipe}
BONDING JUMPER®
GROUND CLAMPS
OPTIONAL ANTENNA GROUNDING
ELECTROIE
DRIVEN 8 FEET (2.44 m) INTO THE EARTH
\F REQUIRED BY LOCAL CODES. SEE NEC
SECTION 810-21(f).
FIGURE
EXAMPLE OF ANTENNA GROUNDING
ACCORDING
TO
THE NATIONAL ELECTRICAL CODE INSTRUCTION S
CONTAINED
IN ARTICLE 810 -"RADIO AND
TELEVISION EQUIPMENT"
1. Item 3 is not required except for grounded or polarized equipment.
2. Item
10 is not required except for units provided with AC outlets.
3. item
17 and 18 are not required except for units provided with antenna terminals.
4
KRAS7A IK)

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