4

Venti lation

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, so fa, rug or othe r similar
surface.
❑Never place the set in a confined space, such as
a bookcase or built-in cabinet, unless proper
ventilation is provi ded.
❑Do not place the set near or over a radiator or
heat register, or where it is exposed to direct
sunlight.

Power-Cord Protect ion

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.
Antennas

Outdoor 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 provides
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 70

Lightning

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.
Service

Damage 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.
❑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. A djust
only those controls that are
specified in the operating
instructions. Improper
adjustment of other controls
may result in damage and
will often require e xtensive
work by a qualifi ed technic ian
to restore the set to normal operat ion.
❑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 technician to perform routine safety
checks (as specified by the manufacturer) to determine
that the set is in safe operating co ndition, 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 serv ice technician t o dispose of th e 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)
DA4X.book Page 4 Tuesday, April 23, 2002 2:48 PM