Roland w-50 Owner's Manual page 5

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Be sure
to
use only the
AC
adaptor supplied with the
unit.
Use
of
any other
AC
adaptor could
result
in
damage, malfunction,
or electric
shock.
Power
Supply
•
Before connecting
this
unit to other
deuces,
turn
oil
the
power
to
all
units; this will
help present
damage
or
mal-
function.
•
Do
not use
this unit
on
the
same power
circuit
with
anv
device
th.it
will
generate
line noise; an electric
motor
or
variable lighting
system
for
example.
•
The power
requirement
for this unit
is
indicated
on
its
nameplate
(rear
panel). Ensure
that
the voltage
in
your
installation
meets
this
requirement.
•
Avoid
damaging
the
power
cord;
do
not
Men
on
it,
olace
heavy
objects
on
it,
etc.
•
When
disconnecting
the
AC
adaptor from
the
power
outlet,
grasp the plug
itself;
never
pull
on
the cord.
•
If
the unit
is
to
remain unused
for
an extended period
of
time,
unplug
the
power
cord.
Placement
•
Do
not subject the
unit to
temperature extremes
(eg.,
direct
sunlight
in
an enclosed
vehicle).
Avoid
using or storing the
unit
in
dusty or
humid
areas, or areas
that
are subject
to
high levels
of
vibration.
•
Using
the unit
near
power
amplifiers
(or
other equipment
containing
large
power
transformers)
may
induce hum.
•
This
device
may
interfere
with
radio
and
television
recep-
tion.
Do
not use
this
device
in
the vicinity of
such
receivers.
•
Observe
the following
when
using
the
W-50's
disk drive.
For further details, refer to
"Before Using
Disks".
ODo
not
place
the unit
near devices
that
produce
a
strong
magnetic
field (eg.,
loudspeakers).
Olnstall the
unit
on
a solid, level surface.
ODo
not
move
the
unit
or subject
it
to
vibration
while
the
drive
is
operating.
Maintenance
•
For r\ervd.i\
(
leaning
wipe
the
unit
with
a sott,
dry cloth
or
one
that
has
been
slightly
dampened
ui'h water.
To remove
stubborn
dirt,
use
a
mild,
non-abrasive
detergent.
Afterwards,
lie
sure to
wipe
the
unit
thoroughly with
a soft,
dry
i
loth.
•
Never
use
benzene,
thinners,
ah oho!
or solvents of
any
kind,
to
avoid the
possibility ol
discoloration and/or
defor-
mation.
Additional Precautions
•
Protect
I
he
unit
Irom strong impact.
•
Do
not allow objects
or liquids 01
an\ kind
to
penetrate the
unit.
In
the
event
of
such an occurrence, discontinue
use
immediately. Contact
qualified service
personnel
as
soon
as
possible.
•
Never
strike
or
apply
strong pressure
to
the display.
•
A
small
amount
of heat will rarliate
from the
unit
during
normal
operation.
•
Before using the
unit in a
foreign country, consult with qual-
ified service
personnel.
•
Should
a
malfunction occur, or
if
you suspect there
is
a
problem, discontinue use immediately. Contact
qualified
service personnel as
soon
as possible.
•
A
small
amount
of noise
may
be heard from the display dur-
ing
normal
operation.
Memory
Backup
I
This
unit
contains
a
battery
which powers
the
unit's
memo-
ry circuits
while
the
main
(AC)
power
is off.
The
expected
life
of
this
battery
is
5 years or more.
However,
to
avoid
the
untimely
loss of
memory
data,
it
is
strongly
recommended
that
you change
the battery
every
5
years.
Please be aware
that the actual
life
of the battery will
depend upon
the phys-
ical
environment
(especially the temperature)
in
which
the
unit
is
used.
When
it is
time
to
change
the
battery,
consult
with
qualified
service personnel.
(When
the battery
becomes weak
the following
message
will
appear
in
the display. Please change the battery as soon
as
possible
to
avoid the
loss of
memory
data.
•
Please be
aware
that
the contents of
memory may
at
times
be
lost;
when
the
unit
is
sent for
repairs or
when
by
some
chance
a
malfunction has occurred. Important data should
be
stored
in
another
MIDI
device
(eg., a
sequencer)
or
on
floppy
disk,
or written
down
on paper
(if
possible).
During
repairs,
due care
is
taken
to
avoid
the loss of data.
However,
in
certain
cases (such
as
when
circuitry related to
memory
itself
is
out
of order),
we
regret that
it
may
not
be
possible to restore
the
data.