21
.
Replacement
parts
-
When
replacement
parts
are
required
,
be
sure
the
service
technician
uses
replacement
parts
specied
by
t
h
e
manufacturer
or
those
that
have
the
same
characteristics
as
the
original
part
.
Unauthorized
substitutions
may
result
in
re
or
electric
shock
or
other
hazards
.
22
.
Safety
check
-
Upon
completion
of
any
service
or
repairs
to
this
product
ask
the
service
technician
to
perform
safety
checks
to
determine
that
the
product
is
in
proper
operating
condition
.
23
.
Damage
requiring
service
-
Unplug
the
product
from
the
wall
outlet
and
refer
servicing
to
qualied
service
personnel
under
the
following
conditions
:
A
:
when
the
power
-
supply
cord
or
plug
is
damaged
.
B
:
if
liquid
has
been
spilled
or
objects
have
fallen
into
the
product
.
C
:
if
the
product
has
been
exposed
to
rain
or
water
.
D
:
if
the
product
does
not
operate
normally
by
following
the
operating
instructions
.
Adjust
only
those
controls
that
are
covered
by
the
operating
instructions
as
improper
adjustment
may
result
in
damage
and
will
often
require
extensive
work
by
a
qualied
technician
to
restore
the
product
to
its
normal
operation
.
E
:
if
the
product
has
been
dropped
or
the
cabinet
damaged
in
any
way
.
F
:
when
the
product
exhibits
a
distinct
change
in
performance
-
this
indicates
a
need
for
service
.
24
.
The
marking
information
is
located
at
the
bottom
of
the
apparatus
.
Warning
Please
refer
the
information
on
exterior
bottom
enclosure
for
electrical
and
safety
information
before
installing
or
operating
the
a
pparatus
.
Caution
:
1
.
Use
of
control
and
adjustments
or
performance
of
procedures
other
than
those
specied
here
may
result
in
hazardous
radiation
exposure
.
If
t his
product
develops
trouble
,
contact
qualied
service
centers
,
and
do
not
use
the
product
in
a
defective
state
.
age
1
.
Before
use
,
choose
unit
installation
location
carefully
.
Avoid
placing
in
direct
sunlight
or
close
to
a
source
of
heat
.
Also
avoid
locations
subject
to
vibrations
and
excessive
dust
,
cold
or
moisture
.
Keep
away
from
sources
that
hum
,
such
as
transformers
or
motors
.
2
.
Do
not
open
the
cabinet
as
this
might
result
in
damage
to
the
circuitry
or
electrical
shock
.
If
a
foreign
object
should
get
into
the
set
,
contact
your
dealer
.
3
.
When
removing
the
power
plug
from
the
wall
outlet
,
always
pull
directly
on
the
plug
,
never
pull
the
cord
.
4
.
Do
not
attempt
to
clean
the
unit
with
chemical
solvents
as
this
might
damage
the
nish
.
Use
a
clean
,
dry
cloth
.
5
.
In
order
to
shut
off
the
power
to
this
product
completely
,
unplug
the
power
cord
from
the
wall
outlet
.
Be
sure
to
unplug
the
unit
if
you
do
not
intend
to
use
it
for
an
extended
period
of
time
,
such
as
while
on
vacation
.
6
.
Keep
this
manual
in
a
safe
place
for
future
reference
.
2
.
Us
2
G: A warning that batteries(battery pack or batteries installed) shall not be exposed to excessive heat such as
sunshine, fire or the like.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
25
.
RF
warning statement: The device has been evaluated to meet general RF exposure requirement. The device
can be used in portable exposure condition without restriction.
Summary of Contents for ITSB-421
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