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q-
Precautions
Before using
this unit
please read these
operating
instructions
carefully.
Take
special care
to
follow
the warnings
indicated
on
the
unit
itself
as
well
as the
safety suggestions listed below.
Aftenrvards keep
them handy lor future reference.
t
Safety
1.
Power Sourca
-
The
unit should be connected
to
power supply
only
of
the type
described
in
the
operating instructions
or
as
marked
on
the
unit.
2.
Polarization
-
lf the
unit is equipped
with a
polarized
AC
power
plug (a plug having one blade wider than the other),
that
plug will
fit
into the AC outlet only one way. This is a safety feature.
lf
you
are unable
to
insert
the
plug
lully
into
the
outlet, try reversing the
plug.
ll
the plug should still
lail
to
fit,
contact your
electrician
to
replace your obsolete
outlet.
Do not defeat the safety purpose of
the polarized
plug.
3.
Power
Cold Plotection
-
AC
power supply cords should
be
routed so
that they are not
likely
to
be walked
on or
pinched
by
items placed upon
or
against them. Never take hold of the plug or
cord if your hand
is
wet, and
always
grasp the plug
body when
connecting
or
disconnecting
it.
4.
Nonuse Periods
-
When the unit
is
not used,
tum
the power off.
When left
unused
for
a
long period
of
time,
the
unit should
be
unplugged from the household AC outlet.
Insta!!ation
Environmeht
1. Outdoor Antenna Grounding
-- lf
an
ouiside antenna
b
connected
to
the
receiver,
be
sure
the
antenna system
b
grounded
so as
to
provide some
protection against
voltage
surges and built-up static charges. Section 810
of the
Natbnal
Electrical
Code, ANSI/NFPA
No.
70-1990,
provides
inlormatbn
with
respect
to
proper grounding
of
the
mast
and
supportirg
structure, grounding
ol
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 below.
POWER SERVICE GROUNDING
ELECTROOE SYSTEM
(NEC ART
2sO,
PABT H)
NEC-MTEI"AL
ELECTRICAI. CODE
2.
Wabr
ad
loisture
-
Do not use this unit near
water-for
exampb,
near
a
bathtub, washbowl, swimming pool,
or the
like.
Darp
basements should also
be
avoided.
3.
Hc.t
-
The unit should be situated away trom heat sources such
as
radabIs
and
the
like.
It
abo
strould
rct
be
flaced
in
temperatures less than 5"C (41"F)
agrE*rthan
35t
(95'F).
A C*rfion
-
Moisture
may
form
on
the lens
in
the following
calEs
---
o'rrmedaleNy
after a
heater
has
been turned
on
.
h
a steenty
q
rery
trrnil
room
o
when
the
mit
is
s.tffiy
rnoved
from
a
cold environment to
a
warn
dre.
lf
rnoisture
,oflns
irsb tis
l.rlil, it
may not operate
properly.
To
@rrect
this
prdetrl' tnn
qr
lfp
power
and
wait
about one
turr
for
the moisture
lo
eYaporde.
Placement
1.
Ventilation
-- The
uln
sfiouad
be
situated
so that its
location
or
position does not interfure
rlh
ils proper ventilation.
Allow
10 cm
(4")
clearance
from
ttp reardthe
unit.
2.
Foreign
Material
--
Carc
stELS
be
taken
so that objects
do
not
tall into and liquids are not
spfed irto
the unit. Do not subject this
unit to
excessive smoke,
dst
ncdanical
vibration, or shock.
3.
llagnetlsm
-
The
unit should be
strrated
away
lrom
equipment
or
devices that generate
stong
,nagrEtism.
a.
$acfhg
-
Do not
place
heavy
otiecfs,
other than
system
components,
on top of
the
unit.
Surlace
-
Place
the
unit on
a
flat, level surface.
Carts
and
Stands
-
The
unit should be used only
with
a cart or
stand
that is
recommended by
the
manufacturer.
The
unit
and
cart
combination should
be
moved
with
care.
Quick stops,
excessive
force,
and
uneven
surfaces may cause
the unit and cart
combi-
nation
to
overturn.
7.
Wall or Ceiling
Mounting
-
The unit should not be mounted to a
wall
or
ceiling, unless specified
in
this operating instructions.
5.
6.
4
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