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Sony TC-377 STEREO TAPECORDER Manual

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GUIDE
FOR
CHECKING
TROUBLES
lf
trouble
with
the
TC-377
arises,
make
the
following
simple
tests
to
determine
whether
or not
the
trouble
requires
a
pro_
fessional
engineer's
skill.
lf
the
trouble persists
after
you
have
made
these
tests,
consult your
nearest
SONy
dealer
for
further
i nstructions.
TROUBLE
Function
selector
cannot
be
locked
No
(or
less)
sound
from
recorded
tape
.
Monitor
switch
set in
SOUCE.
.
Break
in
connection
to
speakers
or in
con-
necting
cord
from
recorder
to
amplifier.
.
Amplifier
fault
or volume
control
turned
off.
.
Line
output
level
adjust
knob
set
in
MlN.
WHAT
TO
DO
ABOUT
IT
.Take
up
the
slack
of
tape.
.
The
selector
cannot
be
locked
without
threading
tape.
.
See
that
all
controls
are
in
proper
positions.
.
Check
connections.
.
Play
commercially
prerecorded
tape
to
see
if
the
fault
is
in
record
or
playback
circuit.
.ïurn
the
Line
output
level
adjust
knob
to
MAX-
PROBABLE
CAUSES
.
Automatic
shut-off
mechanism
is
activated.
t_
Recording
cannot
be
made
Low
hum
on
tape
Loss
of
high
frequencies
Slippage
of
tape;
wow
or
flutter
.
Dirty
or
oily
capstan
and
pinch
roller.
.Warped
reel.
.
Different
size
reels
for
supply
and
take_up.
.
Uneven pinch
roller.
.
lnput
connections
are
not
proper
or break
in
the
connecting
cord.
.
Amplifíer
fault.
.
Record
levers
not
locked.
.
Dirty
record
head.
.
Input (record
player
or
tuner)
or
recorder
not
properly
grounded.
.
Recorder
operating
in
electrical
field.
.
Dirty
heads.
.
Tape
threaded
improperly.
(shiny
side
contacts
the
heads)
.
Tape
twisted
or
damaged.
.
Dirty
erase
head.
.
Clean
capstan, pinch
roller
and
other
tape
path
components.
.
Replace
the
Warped
reel.
.
Check
pinch
roller
for
perfect
roundness.
.Check
input
connections
and
cords.
.
Check
Level
meters
to
see
that
signal
is
reaching
recorder.
.
See
that
all
controls
are
correct.
.
Clean
the
record
head.
(ReÍer
to
page
26)
.
Check
whether
hum
occurs
on
prerecorded
tapes
as well
as those
made
on the
recorder.
.
Check
ground
terminal
connections
of
input
or recorder.
.
Try
reversing
the
AC
power
plug
of
the
recorder
in
the
wall
outlet.
.
Clean
heads
and
tape
path.
(Refer
to
page
26)
.
Thread
tape
properly.
.
Check
the
tape.
.
Clean
the
erase
head.
(Refer
to
page
26).
Unsatisfactory
erasing
a1
… 37 …


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  • NECESITO EL MANUAL DE SERVICIO DE SONY STEREO CASSETTE-CORDER TC-121. GRACIAS Submitted on 15-4-2022 at 21:51

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