Yamaha RX21 - Precautions

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PRECAUTIONS
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T
ee
e
Avoid
placing
the
RX21
in
locations
exposed
to
direct
sunlight
or
high
temperatures,
excessively
high
or
low
humidity,
high
dust
concentration,
or
vibration.
e
Be
sure
to
connect
the
RX21
to
an
AC
power
supply
that
meets
the
power
supply
specifications
listed
on
the
rear
of
the
unit.
Ideally,
you
should
use
the
PA-1
power
supply
unit
supplied
with
the
RX21.
e
if
there
is
any
danger
of
lightning
occurring
nearby,
remove
the
power
plug
from
the
wall
socket
in
advance.
e
Be
sure
to
make
all
connections
properly,
as
illustrated
in
the
CONNECTIONS
diagram.
e
To
avoid
damaging
your
speakers
and
other
playback
equipment,
turn
off
the
power
of
all
related
equipment
before
making
connections.
e
Do
not
use
excessive
force
in
handling
control
switches
and
knobs.
e
To
avoid
broken
cords
and
short
circuits,
be
sure
to
unplug
all
connectors
by
grasping
the
respective
plugs—NOT
the
cords.
e
Remove
the
power
plug
from
the
AC
mains
socket
if
the
unit
is
not
to
be
used
for
an
extended
period
of
time.
e
Remove
all
plugs
and
connections
if
the
unit
is
to
be
transported,
to
prevent
damage
to
the
cords
and
jacks.
e
Do
not
use
solvents
such
as
benzene
or
paint
thinner
to
clean
the
unit.
Do
not
use
insecticides
or
other
pressurized
spray
products
in
proximity
to
the
unit.
Wipe
off
the
exterior
with
a soft
cloth.
The
RX21
memory
has
a
Lithium
backup
battery
so
that
patterns
and
songs
are
not
lost
when
you
turn
the
power
off.
This
battery
has
a
life
of
about
5
years.
When
its
voltage
level
starts
to
fall
below
a
usable
level,
the
RX21's
LCD
will
display
an
Error
Message
when
you
turn
it
on
(see
the
ERROR
MESSAGES
section
of
this
manual).
In
this
case,
replacement
will
be
imminent,
and
you
should
contact
your
local
Yamaha
dealer.
EFFECTS
ON
OTHER
ELECTRONIC
EQUIPMENT:
Since
this
unit
incorporates
digital
circuitry,
simultaneous
use
of
other
equipment
such
as
TVs,
radios,
etc.
in
close
proximity
may
cause
noise
and
erroneous
operation.
If
this
occurs,
separate
the
affected
units
sufficiently
to
eliminate
the
problem.
It
is
also
a
good
idea
to
use
separate
line
filters
on
each
piece
of
equipment.