Roland TR-707 Owner's Manual page 5

Important
• This
unit
might not
work
properly
if
turned on
immediately
after
turned
off.
If
this
happens,
simply turn
it
off
and
turn
it
on
again a
few
seconds
later.
•
This
unit
might get hot while operating but
there
is
no
need
to
worry about
it.
• Be
sure to use the supplied
AC
Adaptor. Using
any other adaptor
may
cause trouble.
Do
not
use
this
adaptor with
any other
device,
either.
• Do
not switch the unit
on
without the
AC
Adaptor
connected.
• Operating the TR-707
near
a
neon
or fluorescent
lamp may
cause noise interference.
If
so,
change
the angle
of
the
unit.
• Avoid
using the unit
in excessive heat
or
humid-
ity
or
where
it
may
be
affected
by
direct sunlight
or dust.
• Use
a soft cioth
and
clean only with
a neutral
detergent.
•
Do
not use solvents such
as paint thinner.
• View
the Display
from
the proper
angle.
•
Please be careful
not
to
damage
the
window.
Battery Replacement
Please save the data
in
memory
on
a cartridge or
tape to prevent
accidental
loss
of
memory
during
battery replacement.
Use two 1.5V (UM-3)
batteries.
I
Remove
the battery cover
on
the
bottom
of the
unit.
2
Remove
the
batteries
from
the battery
case.
Memory
Back-up
The TR-707
features
memory
back-up system
that
retains the data
even
when
switched
off.
A
set
of
batteries
(1.5V
or
UM-3
batteries
x 2) supports
its
back-up
circuit.
Be
sure
to
keep the
batteries securely
connected
even during
AC
operation.
Always
replace with a
complete
set
of
new
batteries
once
a
year
no
matter
how
rarely
you
have used
the
unit.
Change
the
batteries
with the
TR-707
switched on,
this
way
the
memory
can
retain
the
data.
if
the
unit
is
not
to
be
used for long periods of time,
please save
the data on
a tape or -cartridge then
switch
it
off
and remove
the
batteries,
otherwise
various troubles
may
be caused by battery
leakage.
Please observe the following "Battery Replacement".
Please
be sure
that the polarities of the
batteries are
correct.
3
Place
a
new
set o* batteries taking care of the
polarities.
Use two 1.5V
(UM-3)
batteries
(2
Replace
the battery
cover.
Please be
sure to
do
the
entire battery replacing
procedure with
the
unit
switched
on.
Then
the
data
in
memory
will be retained.