Dual 622 - Operation Modes and Controls; Starting Playback; Continuous Play Function; Stopping and Shut-off Procedures

Fig.
14
62
185
189
141 38
64
219 193
166
135
Fig.
15
a.)
b.)
Start
Switching the switch lever
64 into the
"start" position initiates
the follovving
sequence:
a) The start lever 219
rotates the switch
lever 180 which is
pivoted about the
notched stud. At
the same time, the
switch
arm
41 is moved
the motor 149,
via the povver
switch 116v
and
the platter
starts
turning.
b)
Operating the
switch lever 68
also releases
the start slide 38
which is
drawn toward the
cam by
means of the tension
spring
156. By that the
shut-off lever
engage vvith the
drive
pinion and
the cam
turns.
Manual
start
The
latch 215
which is
connected to
the switch
arm 41
engages
in the
four-sided
plate when
the
tonearm is
moved
manually.
The
switch arm
connects the
mains
supply to the
motor 149 via
the
power switch 116
and the
platter rotates.
.
When the
run-out
groove of the
record is
reached, the
tonearm is
lifted
and returned, the motor is
switched
off
automatically. If
the
tonearm is lifted
off the
record before the
run-out,
and re-
turned
by hand to
the pillar,
then the bolt
on the
segment 208
engages the latch
215 so that
the switch
arm is
returned to its
starting
position. This
switches off
the mains
supply.
Continuous
Play
Continuous
Play is switched on
by turning the
rotary knob 62 to
The
rotary knob 67
turns the
switch angle 185.
The
switch
rod 189
keep the change lever
180 in starting
position.
After the record
has been played
the tonearm
returns automa-
tically to
the lead-in groove
of the record.
This procedure is re-
peated until the
switch lever 68 is
brought to the "stop"
posi-
tion or the rotary knob 62 to
position "1".
Adjustment Point
Pull mains plug.
Remove platter 4. Bring rotary knob 62 to
position " oo ".
Turn cam wheel to central
position. The change
lever 180 turns the
guide lever U and the top
of the guide lever
must at
least be brought to the cam range.
Adjust by bending the
switch
rod 189.
Stopping
When control lever is set to "stop
position the start slide 38
which is pulled towards
the cam by means of tension 34, be-
comes free. As a result, the shut-off lever is moved into the range
of dogs cam. The lever
remains in its stop position.
Shut-off
The
shut-off and stop
functions depend on the position of the
guide
lever U. The guide
lever U is brought to
stop position by
the main
lever 183 after every start
(longer end of the guide
lever
towards cam
vvheel centre).
The
shut-off
bar 161 is guided
along in proportion to the mo-
vement of the
segment
208.
The shut-off procedure
is imitated after a
record has been played
by the
dog M of the platter and
the shut-off lever A.
8