Dual 1226 - Shut-off Mechanism

Fig.
Fig.
Fig.
17
18
19
Change Cycle
12
Shut-off Mechanism
The shut-off and change functions are de-
termined by the position of the cam follower
lever (166). After every start or record
drop the cam follower lever (166) is moved
to stop position by main lever (173) (longer
end of the cam follower lever towards the
center of the main cam).
As the record is dropped the cam follower
lever (166) is turned to start position by
cam rocker (A) so that the tonearm can swing
in after record drop and be lowered onto it.
If there are no more records on the spindle
its downward movement is locked and the cam
rocker cannot turn the cam follower lever,
the lever remains in stop position and cau-
ses the tonearm to lower onto its rest.
When main cam (161) returns to neutral posi-
tion the lug of shift arm (187) is able to
move into the recess provided in the main
cam, actuate power switch (140) and disenga-
ge idler wheel (150).
Trouble
Platter stops after automatic set-—down of
tonearm
Cause
5 Shift arm (187) not locked by pawl (203).
b) Power switch has interrupted power sup—
ply (has switched off).
Remedy
s By turning the eccentric pin on the paul
b) By adjusting switch slide (181) maximum
play between suitch slide and shift arm
(0.3 mm).
Trouble
The last record of a stack keeps repeating
Cause
Defective spindle
Remedy
Replace spindle