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2) When
the tape-end is detected and the floating arm slides,
the AS arm
as shown
in Fig. 15 slides in the direction of
arrow
®
with its fulcrum at ® :
3) When the AS arm slides into the position shown in black in
Fig. 16, it engages with the AS cam under the cam gear and
slides in the direction of arrow
© .
4) When the AS arm slides into the position shown in color,
the AS lever rotates in the direction of arrow
@
and
makes the lock plate move in the direction of arrow
® .
This sliding of the lock plate causes the same conditions as
when the stop button is depressed, and each slider goes into
the stop mode.
7. Eject prevention mechanism (Fig. 17)
When
the playback
button or other operational
buttons are
depressed, the eject prevention slider slides in the direction of
arrow
2
and it turns the motor switch 'ON'. eject can be
done only under the stop mode, but if the eject button is de-
pressed and the cassette holder is open, since the eject slider is
in the convex portion as shown in ® of the eject prevention
slider, the eject prevention slider does not operate by pressing
the playback
or other operational buttons, and the playback.
recording,
fast forward
and rewind operations are prevented
from occurring.
Under the modes other than the stop mode,
the eject slider touches the point @® of the eject prevention
slider and prevents the eject operation from occurring.
When the playback button is depressed. the eject prevention
slider slides in the direction of arrow @
and at the same
time, the playback arm slides in the direction of arrow
@
;
(The playback arm slides into the playback position as shown
in
when the playback gear rotates about 1/3 of a turn).
When the stop button is depressed just before the playback
plate shaft is locked, the eject prevention slider tries to slide in
the reverse
direction
of arrow
2) but the playback
arm
prevents this sliding and the motor switch does not turn OFF.
The motor and the gear rotate until the stop mode (when the
playback arm goes into the postion shown in black) is obtained.
In this way,
the power-assisted
control
mechanism
operates,
-7T-
D-720(W, FS)
Floating arm
AS arm
Fulcrum®
Cam gear
Dunng
operation
@
~~ Tape end
Lock plate
Fig. 16
and the stopping of the playback gear halfway or the operation
of the eject mechanism during this time, when the stop button
is depressed just before the head or pressure roller is locked.
is prevented.
——
Playback mode Playback arm
=
inl ici
Eject slider
Eject prevention stider
Fig. 17
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