Dual 1010 - Shut-off; Shut-off and change cycle

Fig. 12 Change cycle
Fig. 14 Change cycle and shut-off operation
ecaM
PR M_ 136 138 140 164
10
Shut-off
Shut-off and change functions are determined by the
position of the cam follower (143). After the last record
of the stack drops, the change lever (153) guides the
cam follower lever.
To initiate shut-off, the cam follower lever is brought
into position (longer end towards the center of the
main cam) by the change lever. After the tonearm has
swung over the tonearm rest, the guide post (B, fig.
8, 9) of the main lever (194) contacts the outside of
the main cam (140), whose vertical profile causes the
tonearm to lower onto its support. The traversing of
the tonearm releases the latch (179) from its support
(BG, fig. 8, 9). However, the main cam keeps the
switch arm (125, fig. 8, 9) in its play position until the
end of the change cycle. When the main cam returns
to its null position, the switch arm drops into the
cut-out in the main cam, the line switch is operated
and the drive wheel disengaged.
Shut-off and change cycle
The dog (M) on the turntable gear (PR) and the shut-
off lever (136) actuate both the change cycle at the
end of a record as well as the shut-off after the last
record of a stack.
As a record is played, the tonearm moves towards the
center of the record dependent on the pitch of the
record groove. This motion carries the shut-off lever
(136) towards the dog (M) by means of the shut-off
slide (164). The eccentric dog pushes the shut-off
lever back at each revolution, as long as the
tonearm advance is only one record groove (fig. 14 a).
The shut-off groove with its greater pitch brings the
shut-off lever against the dog with greater force
(fig. 146). The shut-off lever (136) then engages and
causes the main cam(140) to be driven by the turntable
gear out of its null position (fig. 14 c).