Roland TR-707 - Circuit Descriptions; PCM Sound Reproduction System

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.