3
Venti lati on
The slots and openings in the cabinet and in the back or bottom are
provided for necessary ventilation. To ensure reliable operation of
the set, and to protect it from overheating, these slots and openings
must never be blocked or covered.
❑Never cover the slots and openings with a
cloth or other materials.
❑Never block the slots and openings by
placing the set on a bed, sofa, rug or other
similar surface.
❑Never place the set in a confined space, such
as a bookcase, or built-in ca binet, unless
proper ventilation is provided.
❑Do not place the set near or over a radiator
or heat register, or where it is exposed to
direct sunlight.
Power Cord Protection
Do not allow anything to rest on or roll over the
power cord, and do not place the set where the
power cord is subje ct to wear or ab use.
AntennasOutdoor Antenna Grounding
If an outdoor antenna is installed, follow the precautions below. An
outdoor antenna system should not be located in the vicinity of
overhead power lines or other electric light or power circuits, or
where it can come in contact with such power lines or circuits.
WHEN INSTALLING AN OUTDOOR ANTENNA SYSTEM,
EXTREME CARE SHOULD BE TAKEN TO KEEP FROM
CONTACTING SUCH POWER LINES OR CIRCUITS AS
CONTACT WITH THEM IS ALMOST INVARIABLY FATAL.
Be sure the antenna system is grounded so as to provide some
protection against v oltage surges a nd built-up st atic charges.
Section 810 of the National Electrical Code (NEC) in USA and
Section 54 of the Canadian Electrical Code in Canada provide
information with re spect 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.
Antenna Grounding According to the National Electrical Co de, ANSI/NFPA 70Lightning
For added protectio n for this tele vision receiver d uring a lightni ng
storm, or when it is left unattended and unused for long periods of
time, unplug it from the wall outlet and disconnect the antenna.
This will prevent damage to the receiver due to lightning and
power line surges.
ServiceDamage Requiring Service
Unplug the set from the wall outle t and refer serv icing to qualifi ed
service personnel under the following conditions:
❑When the power cord or plug
is damaged or frayed.
❑If liquid has been sp illed into
the set or objects have fallen into the
product.
❑If the set has been exposed to rain or
water.
❑If the set has been subject to excessive
shock by being dropped, or the cabinet
has been damaged.
❑If the set does not operate normally when
following the operating instructions.
Adjust only those controls that are
specified in the o perating instru ctions.
Improper adjustment of other controls
may result in damage and will often
require extensive work by a qualified
technician to rest ore the set to no rmal
operation.
❑When the set exhibits a distinct change in performance, it
indicates a need for service.
Servicing
Do not attempt to service the se t yourself sinc e
opening the cabinet may expose you to dangerous
voltage or other h azards. Refer al l servicing to
qualified service personnel.
Replacement Parts
When replacement parts are required, be sure the
service technician certifies in wr iting that he ha s
used replacement parts specified by the
manufacturer that ha ve the same charact eristics as
the original parts.
Unauthorized substitutions may result in fire, electric shock or
other hazards.
Safety Check
Upon completion of any service or repairs to the
set, ask the service tech nician to perform routi ne
safety checks (as specified by the manufacturer) to
determine that the set is in safe operating
condition, and to so certify. When the set reaches
the end of its useful life, improper disposal could
result in a picture tube implosion. Ask a qualified
service technician to dispose of the set.
Ground clamp
Antenna lead-in wire
Antenna discharge unit
Grounding conducto rs
Ground clamps
Power service grounding electrode
NEC: National Electrical Code
Electric service
(NEC Section 810-20)
system (NEC Art 250 Part H)
equipment (NEC Section 810-21)