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4. Operation of Automatic Mechanism
Char.
evcle mechanism:
Ter:
"aying,
the notch
of the main
gear. position
relative to the turntable spindle gear is as shown in Fig.
4. As the projection is away from the engagement, the
main
gear does not rotate even though the turntable.
. As playing proceeds,
the trip slide moves toward the
center of the turntable
following the movement
of the
tonearm.
.
. The engagement
is very easy to move as it simply rests
on the lower trip. On the music section of the record
groove
the engagement
moves
so slightly that it is re-
turned
by the tip of the projection. Consequently, the
turntable
spindle gear does not engage with the main
gear and thus does not trigger the auto-return operation
as shown in Fig. 5.
. When
playing ends and the pick-up cartridge enters the
lead-out
groove
which
is paced
out, the engagement
advances
more
then
it is returned
by the projection.
Because
of this, the engagement
is pressed by the pro-
jection zs shown in Fig. 6, causing the main gear to turn
and
engage with
the turntable
spindle gear. Thus the
change cycle is started.
. During zne return operation the engagement and lower
trip which have moved
are returned
to their original
position by the reject button coming into contact with
the bottom of the lower trip. At this moment the switch
lever
operates
with
the
help
of the main
gear cam,
switching off the power just before the rotation should
stop.
This completes the automatic cycle.
Tonearm lift and return mechanism:
1.
. Unscrew the connector screw to remove the headshell,
. Remove
the two long screws on the headshell which
—_
When
the main gear starts to rotate at the end of play-
ing,
the
return
lever rotates
under
the action
of the
main
gear cam to press the elevazor cam.
The upward
movement of the elevator cam is cirectly converted into
movement of the elevator, lifting up the tonearm. (Fig.
7)
. The
tonearm
is returned by the arm lever the end of
which pressesit as the main gear rotates.
hold the cartridge. (Fig. 8)
. Connect
the lead
wires of the headshell
to the new
Cartridge, being careful to match the polarities correctly,
Polarity and wire colots are as eNews:
White (+)....... L = Red (+).
rR.
le aS
Blue (-)........ R
Green). e e RE
Ee
. Attach
the cartridge
to the headshell ran,
and
gently tighten the screws.
. Set the cueing button to "DOWN",
and then bring the
stylus tip to the optimum position by sliding the car-
tridge back and forth. See 6-(1) Cverhang Adjustment.
. After atzaching the cartridge, siide the headshell into the
tonearm. Tighten the connector screw.
. Be sure to adjust the tracking force and lead-i -in position
after reptacing the cartridge.
t
andl
P-ojection
_ Platter Spindle eee
Engagement
Platter Gear
- Fig. 4
Fig. 5
Fig. 6
Return Lever
Elevator Cam
Fig. 7
Plastic
;
Washer
D
iK,
IN/o.
4.
!
Cartridge
L-Agh
Yn
DREF
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