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16.
17.
:SERVICE
ENTRANCE
EQUIPMENT
Object
and Liquid
Entry
Never
push
objects
of any kind
into this
Projection
TV through
openings
as they may
touch dangerous
voltage points or short-out
parts that could
result
in a fire or electric
shock. Never spill liquid of any kind on the
Projection
TV.
Outdoor
Antenna
Grounding
If an
outside
antenna
or
cable
system
is
connected
to the Projection
TV be sure
the
antenna
or cable
system
is grounded
so as to
provide
some
protection
against
voltage
surges
and
built-up
static
charges.
18.
Section
810 of the
National
Electrical
Code,
ANSI/NFPA
No. 70-
1984,
provides
informa-
tion
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
19.
grounding
electrodes,
and
requirements
for
the
grounding
electrode.
EXAMPLE
OF ANTENNA
GROUNDING
ACCORDING
TO NATIONAL
ELECTRICAL
CODE INSTRUCTIONS
CONTAINED
IN
ARTICLE 810 - "RADIO AND
TELEVISION
EQUIPMENT"
SERVICE
ENTRANCE
CONDUCTORS
/
GROUND
CLAMP
STAND
OFF
INSULATORS
°
/
20.
ANTENNA
LEAD-tN
W!#E
POWER
SERVICE
GROUNDING
ELECTRODE
SYSTEM
/'
(e
g
_nterl_
metal
water
pipe)
,//
/
BONDfNG
JUMPER
_
ANTENNA
DISCHARGE
UNIT:
T'O
EXTERNAL
ANTENNA
TERMINALS
OF
PRODUCT
_--I
,
GROUND
WIRE
_ e
GROUND
CLAMPS
OPTIONAL
ANTENNA
GROUNDING
ELECTRODE
8
FEET
(2
44m)
INTO
THE
EARTH
IF
REOUIRED
BY
LOCAL
CODES
SEE
NEC
SECTION
810
21(f)
a Use No. 10 AWG (5.3 mm2) copper, No. 8 AWG
(8.4 mm2) aluminum.
No. 11' AWG (1.0 mm 2)
copper-clad steel or bronze wire, or larger, as a
ground wire.
b Secure antenna lead-in and ground
wires to
house with stand-off insulators spaced from 4-6
feet (1.22-1.8"1m) apart.
c Mount
antenra
discharge
unit as close
as
possible to where lead-in enters house.
Use jumper wire not smaller than No. 6 AWG
(13.3 mm2) copper, or the equivalent, when a
separate antenna-grounding
eleclrode is used.
Servicing
Do not attempt to service
this Projection
TV
yourself as opening
or removing covers
may
expose
you
to dangerous
voltage
or other
hazards. Refer all servicing to qualified service
personnel.
Damage requiring
Service
Unplug this Projection TV from the wall outlet
and refer servicing to qualified service personnel
under the follcwing
conditions:
(a) When the power-supply
cord
or plug is
damaged.
(b) If liquid has been spilled, or objects have
fallen into the Projection TV.
(c) If the Projection TV has been exposed to rain
or water.
(d) If the Projection TV does not operate nor-
mally by following the operating instructions.
Adjust only those controls 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 clualified technician to restore the
Projection FV to its normal operation.
(e) If the Projection TV has been dropped or the
cabinet has been damaged.
(f) When the Projection
TV exhibits a distinct
change in performance
--- this indicates
a
r_eed for service.
Replacement
Parts
When replacement
parts are required, be sure
the service technician
has used replacement
parts specified by the manufacturer or have the
same character stics as the original part. Unau-
thorized substitutions
may result in fire, electric
shock or other hazards.
Safety Check
Upon completion of any service or repairs to this
Projection
TV ask the service
technician
to
perform
safety checks to determine
that the
Projection TV is in safe operating
conditions.
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