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Maintenance; Troubleshooting - JVC TD-X321 Service Manual

Stereo cassette deck

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TD-X321
,irwctltctrtt)
COMPU
LINK
CONTROL
SYSTEM
This
is a
convenient system
which
has
been
originated and
developed
by
JVC. Tha follow-
ing are the
brief
explanations
of
its
major
per-
formances:
Automatic
Source Selection
When
the
provided remote
cables
are
used
for
connecting
this unit to
other
Gomponents
which
have
COMPU
LIN
K-l
/SYNCH
RO
ter-
minals, the
switchover
of all
system
components
is possible
with
simple
one-touch
of
the
source
selector
button
of
JVC's amplifier
or
rsc€iwr.
By
doing
this, the
corresponding
@mponent
will
start
playing automatically.
The
source
select
button
of
the
remote
control
unit
or
the
activation button
of
the desired cofnponent
can
be
also
used
for
this
purpose.
When
the
components
have been
srruitched
over,
the
previous
component
will
stop
play,ing
with.
in five
seconds.
Synchronized
Record ing
Synchronized recording refers
to
the
pro@ss
in
which
the
deck
srarts recording
in
ryn-
chronism
with
the
CD player.
Perform
the ryn-
chronized recording
as
follows:
1.
Set
the
cassette
deck
to
the
record-pause
mode
in
accordance
with
the
recording pro-
cedures
on
page 19.
2. lf
you want the
programmed recording, pro-
gram
the
desired
tunes
in
any
order
you
wish
to
hear.
3.
Press
the
PLAY/PAUSE
button
óf
the
CD
player.
By
so doing,
the
cassette
dcck
is
placed in
the
record mode and
syndrronizod
with
the
CD
ptayer
for
recording. Synchro-
nized recording thus
can
be
made
po*íbto.
Notes:
o
Synchronized recording stops automatically
when
the
CD player stops playing.
o
To
cancel synchronized recording,
press the
STOP
button
of
the CD
player
or
cassette
deck.
o
Synchronized
recording does
not
start
excspt
when
the
record-;rause
mode
is set
by
simul-
taneously
pressing
the
O
REC/RE€
MUTE
arrd
l!
(pause)
buttons
in
the stop
rnode.
o
The
source
is locked
to
the
CD position
dur-
ing synchronized recording
to
avoid accldenÍal
stops
or
switch-over
to
another
corriponont.
To
switch
over
the
components,
cancel
synchronized recording
f
irst
MAINTENANCE
The importance
of
cleaning
When
the tape
is moving, magnetic powder
and
dust
naturally
accumulate on
the
heads, capstan
and
pinch roller.
When
they
become
too dirty,
o
tone quality
deteriorates.
o
the output
sound
level
drops.
othe
previous sound
is
not
erased
satisfactorily.
r
recordings
are
not
satisfactory.
Because
of
this,
clean
the
heads,
1
0
hours
of
use
so
that
optim
um
will
be
made.
E
rase
Cleaning the headr,
pinch roller
and
capstan
Wipe
the
heads,
the
capstan,
etc.
with
a
cotton
swab
with
its
tip dip@
in
alcohol.
For
effective cleaning,
use
a
cleaning
kit
avail-
able
f
rom your
audio store.
After
cleaning,
be
sure
that
the
cleaning
fluid
has
completely dried before
loading
a cassette.
etc.
every
recordings
Cotton
swab
,n
head
t
t
t,
E
roller
Capstan
TROUBLESHOOTING
What
appears
to
be
trouble is
not
always
real
troubJe, Mako
s.rre
first
. . .
.
1.
Recording cannot be performed.
*
Are the safety
tabs
of
cassette
tape broken?
lf
so,
replace
the
cassette
with
a
new one,
or
when the recording
can
be erased,
cover the
safety tab slots
with
adhesive tape.
2.
Tape
does
not
movo.
* Has
the
ll
PAUSE
button
been
pressed?
lf it
has, press
the
PLAY button
to
cancel
the
pause mode.
3.
Tape ruÍlli,
but
no sound
is heard.
*
Are the
cords connected
correctly?
lf
not,
insert
again
securely.
*
ls
the
remote
cable disconnected?
lf
so,
connect
it
correctly.
*
ls
the.
VO
LU
M
E
control
of
the
stereo
am-
plifier
set
to
MIN?
lf it
is, adjust the
con-
trol to
an
appropriate volume.
4.
Sound
is
too
low,
unstable
or
broken.
*
Are the
heads,
pinch roller and
capstan
dirty?
lf
so,
clean them.
5.
Hiss noise
is
heard, and high-frequencies
are
attenuated.
*
ls the
record/playback
head
magnetized?
lf
so, demagnetize
it.
6.
Previously recording
is not
completely
erased.
*
ls
the
erase head
dirty?
lf
so,
clean
it.
(
Becord/play
head
t,
(No.
4305)
9

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