Dual 621 - Specific Adjustments and Troubleshooting; Lift, Power Switch, and Alignment Adjustments

Fig. 18
Shut-off Point
The
shut-off point (shut-off area
of record diameter
122 mm) can
be varied
with the eccentric
(E)
mounted on the
segment (208).
Tonearm vertical lift
With the adjustable sleeve (202)
the tonearm vertical lift (for
automatic Operation) can be
adjusted. Pull out the mains plug,
unlock the
tonearm, turn the cam
wheel (16)
until
the tonearm
reaches its highest point.
The tonearm should now be approxi-
mately 4 mm above the pillar stop.
Adjust by means of sleeve
(202)
, - turn left or right.
Adjust a play of 0.1 mm
between shaft pin and coupling
plate
(of the tonearm) with the sleeve (57).
(Measured at the tonearm app. 0.5 mm).
Power Switch
Turn in tonearm (48). The slide (117) of the power switch (116)
should have a play of 0.2 — 0.5
mm. Adjust by bending the
switch arm
(41).
Defect
Tonearm head
not parallel to platter.
Cause
Seat of
tonearm head on the
tonearm tube has changed during
transit.
Remedy
Remove platter. Insert
screwdriver
through the
hole
in the
chassis
mounting plate.
Align
tonearm head and
retighten
screw.
Fig. 19
Fig.
20
Fig.
21
ca.
6mm
f
114
(IP -
•
12