Technics RS-631

MAINTENANCE
(Refer
to
fig.
17.)
Because
the
head
assembly
and
the
capstan
are
in
constant
contact
with
the
moving
tape,
dirt
or
residue
f rom
the
tape on
these
parts
will decrease
the
sound
quality'
They
should
be
cleaned
after
every
10
hours
of
use,
as
shown
in
figure
17.
Timer Stand-by
When
the
Play button
is depressed
and
the
power
to the
deck
is off, the
capstan
and
the
pressure
roller
are
station-
ary
and
in
contact
with
each
other.
lf this
condition
is
maintained
for a
long time,
a
flat spot
or
other
unevenness
could
develop
on
the
roller.
The
Timer stand-by
feature
prevents this
from
happening.
lt disengages
the capstan
and
pressure
roller
contact,
when
the
power
is off,
even
though
the
Play button
is depressed.
When
power
is appli-
ed,
and
the
deck
motor starts
to turn,
it
disengages
the
Timer
stand-by
feature
and
allows
the unit
to either
record
or
playback
without
damage
to
the
pressure roller'
TIMER
RECORDING
AND
PLAYBACK
(Refer
to
fig.
18.)
*
Set
the
timer
to
the desired
time.
(Depending
upon
the
type
of
timer,
the
power
to
the amplifier,
tape
deck
and
tuner
will
then be
turned
off')
Refer
to
the operation
instructions
of
the
timer
for
{urther
information.
*
lf
preparations are
then
made
for
timer
recording
or
playback,
the
timer
will
turn on
the
power
at
the desired
time,
the
Timer
stand-by
button
will be
released,
and
the
recording
or
PlaYback
will begin.
TROUBLESHOOTING
lf operation
of
this
unit
does
not seem
normal,
check
the
following
points
before
requesting
service'
lf
the trouble
cannot
in this
way be
determined
and
corrected,
contact
the dealer
from
whom
the
unit
was
purchased'
1. After
the
tape
cassette
is
inserted,
the
tape
does
not
move
when
the
Play
button
is
pushed.
.
ls the
power cord
correctly
connected?
.
ls the
Power
switch
pushed
in
to the
"ON"
position?
.
ls the
Pause
button
released?
2. Although
the
tape
moves'
no
sound
is
heard'
.
ls the
taPe
blank?
.
Are
the
connections
of
amplif
ier
and
speaker
correct?
.
Are
connection
cords
from
this
unit
to
the
amplifier
correctlY
connected
?
.
ls the
volume
control
of
the
connected
amplifier
set
to
the correct
Position?
.
ls
the
monitor
switch
of
the
connected
amplifier
set
to
the
correct
Position?
3.
Sound
is distorted.
.
ls the
recording
level
too
high?
.
ls the
playback
output
level too
high?
.
ls the
input
impedance
of the
connected
amplifier
ap-
propriate ?
4.
The Record
button
cannot
be
pushed
down.
.
ls
the tape
cassette
inserted
correctly?
.
Have
the
recording-prevention
tabs of
the cassette
been
removed?
5,
Playback
sound
is
hoarse
or
vibrates.
Recorded
sound
is not
clear.
.
Are
the
head
surfaces
dirtY?
.
ls foreign
material
adhered
to
the
pressure
roller
and/
or
the
caPstan?