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OPERATIONS IN EACH MODE
Wind Mechanism
1. Forward play (FF)
1)
When electricity is supplied to the reel motor ass'y
(1B), the motor gear rotates in the direction of the
arrow.
2)
This rotates the gear ass'y (23) in the direction of
the arrow.
The force of the coiled torsion spring
(40) in the gear ass'y (23) (free cushioning force)
is applied
to the winding
lever. The force of the
motor gear rotation automatically moves the wind-
ing lever in the direction of the arrow (A).
The gear ass'y (23) is engaged with either or both
of the right-hand
and
left-hand
reel drums
(7).
The load of the reel drums (7) (SVP load) and tape
load moves the gear ass'y (23) in the direction of
the arrow (A).
Note:
Earlier
models
have no free cushioning function.
3)
This motion applies the winding load and the right-
hand reel drum (7) is rotated.
PLAY or FF is selected by the difference of voltage
applied to the reel motor ass'y (1B).
The play torque, FF time and FF torque are set by
the logic. So, they require no setting or adjustment.
(See Fig. 1).
2. Reverse play (REW)
1)
When
the direction of electricity supplied to the
reel motor ass'y (1B) is reversed, the motor rotates
in the opposite
direction
to drive the
left-hand
reel drum (7).
Play torque, REW time and REW torque are set by
the logic as in forward play mode.
3. Structure of Reel drum
1)
Fig. 3 shows the structure of the reel drum (7).
The coiled compression
spring for the reel stand
secures
backward
tension
and
provides clearance
for the hub when the cassette is loaded.
2)
!f the plain washer
(27) is not mounted
in the
mechanism
ass'y, uneven
torque will be applied
during operation.
3)
Apply
molibdenum
grease to the contact surfaces
between the reel stand collar (24) and plain washer
(26). Apply grease to the reel stand shaft.
Reel drum (7)
Motor gear
Fig. T
\
REW
REVIEW
Fig. 2
Plain washer (26) ———- ®
Apply molibdenum grease
Reel stand collar (24) ——~
a——<$ )
<j.
Coilded compression spring
SS
for reel stand (28)
Reel drum (7)
Plain washer (27) ——~.
e Apply grease.
Fig. 3
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