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m
5-3-4.
CHECK
AFTER
ADJUSTMENTS
(Refer
to
1)
'i
2)
3)
4)
L
5)
6)
7)
'k-
"l-
Fig. 5-3-6.)
Play the alignment
tape (NTSC-VHJ-OO06,
PAL:VHJ-
0009),
and check that the envelope
waveform
rises
immediately,
and that the envelope
waveform
and
audio output waveform
do not change.
Load the cassette tape (NTSC:T-120,
PAL: E-180), and
record and play. Check that the envelope
waveform
rises immediately,
and that the envelope
waveform
and audio output waveform
do not change.
(Input 1
KHzto the audio input terminal
during recording.
Use
an unscratched
cassette tape. Also check that when
set to the tracking
center, decrease
of the first and
second
half
is below
20°A from
the
maximum
amplitude
of the envelope
waveform.
)
After setting
to PLAY +
R-SEARCH,
R-SEARCH
+
PLAY, check
that
the
envelope
waveform
rises
immediately.
Also check that the tape does not slack
near the pinch roller.
When
set to PLAY from
the
modes
FF, REW,
F-
SEARCH, R-SEARCH,
STOP, check that the envelope
waveform
rises immediately.
Also check that the tape
does not slack near the pinch roller.
Check that during the PLAY, FF, REW, F-SEARCH,
R-
SEARCH modes, the tape does not curl nor ride over
the upper and lower flanges
of the tapes guides.
Check that the tape runs as shown in Fig. 5-3-6 during
PLAY.
Load the cassette tape (NTSC:T-160,
PAL: E-240), and
record and play. Repeat and Check the steps 3) to 5)
again.
Supply side
Take up side
"Assy, roller, guide"
"Assy, roller, guide"
c
Tape gu
BT post
ft
Fig. 5-3-6
'u-
L
-33-
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