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2. If damage in the form of
a
sawtooth
or a
streak
is
1)
2)
,
3)
4)
t
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., .=,
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.
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..
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"-s
i .,.
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'
found
on
the
tape
edge
Check if a large amount
of magnetic
particles
is
adhered
to
the
exit-side
guide
roller.
If
magnetic
particles
cannot
be removed
in spite
of repeated cleaning, the guide roller must be
replaced.
Confirm
if the tape is held too tightly
by the
exit-side guide roller, or
if the
last
half
of
the
envelope
waveform
is flat.
If the
type
is found
held
too
tightly,
readjustment
should
be made
by
referring
to
6-4-4.
Recheck
if the damage is still caused on the
E-240 tape.
If similar
damage
is still
found
on the tape,
the exit-side
guide
roller should
be loosened
about
20°
counterclockwise.
Check
once
again
that
no
fluctuation
is
caused in the envelope waveform
or the audio
waveform
by
loosening
the
exit-side
guide
roller.
To
do
this,
record
and
play back the
(5)
Perform
recording
for
60 seconds
in the
SP
mode at the near end of the E-240 cassette
tape. Play back the recorded portion
and repeat
the
F. SEARCH H
R.
SEARCH
ten
times,
following
which
a
check
should
be made to
see if damage
is still
done to the tape edge.
If a damage
in the form
of a sawtooth
or a
streak
is still
occurred
on the tape edge by
the upper lounge of entrance
side guide roller,
proceed
with
the step given
below.
1)
2)
3)
E-240 cassette
tape.
4)
Check if a large amount
of magnetic
particles
is adhered
to the entrance-side
guide
roller.
If the magnetic
particles
cannot
be removed
in spite of repeated cleaning,
the guide roller
must
be replaced
with
new one.
Confirm
if the tape is held too tightly
by the
entrance-side
guide roller, or if the first
half
of the envelope waveform
is flat. If the tape
is found
held too tightly,
readjustment
should
be made by referring
to 6-4-4.
Recheck if the damage is still caused on the
E-240 tape.
If the damage is still found
on the tape, the
entrance-sideguide
roller
should
be loosened
aboud
20°
counterclockwise.
Check
once
again
that
no
fluctuation
iS
caused in the envelop waveform
or the audio
waveform
by
Iooseving
the
entrance-side
guide
roller. To do this, record
and play back the
E-240 cassette
tape.
Fixed
Tens
Pole
SuPrdY side Angle
Pole
/
Pinch 'Roller
I
Take-up
side Angle
Pole
REV Guide
Axle
Fig. 6-4-11.
. .
,,...
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. ,, ... .,
,,.
., . . .. .
–/
–79–
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