Dual CS 626 Service Manual

Tonearm Control
Automatic
movement of the
tonearm is
initiated by the control
cams on the inside of the
cam wheel 5 on
rotating through 360 0 .
The
control elements for
raising and lowering
are the main lever
178
and lifting bolt for
horizontal movement
the main lever 178
with segment 185.
The
automatic tonearm set
down mechanism is
designed for
30 cm and 17 cm
records and is coupled to
the platter speed
changeover. The
setdown points of the tonearm
are determined
by the spring pin
of segment 185
contacting the slide bar 190.
Limitation of the horizontal
movement of the tonearm is
pro-
duced
by the pin of segment
contacting the stop attached
to the
slide bar 190. Only
during set-down does main
lever 178 lift the
slide bar 190 and the stop
attached to lt which, as a
result,
moves into the swivel range
of the stop pin fitted on the segment.
After
completion of set down (lowering of the
tonearm onto the
record) slide bar is released
again and returns to its neutral
posi-
tion. As a result, the slide
bar moves out of the swivel
range of
the pin, so
that unimpeded movement of
the tonearm is possible
for
playing.
Start
Switching the
switch lever
68 into the
"start"
position
initiates
the
following
sequence:
a) The
Solenoid
rotates the
switch lever
147 which
is pivoted
about
the notched
stud. At the
same
time, the switch
arm
53 is
moved the
motor 141, via
the power
switch 125, and
the
platter starts turning.
b)
Operating the
switch lever 58
also
releases the
start slide
which
is drawn
toward the
cam by
means of the
tension
spring 57. By
that the
shut-off lever
engage with
the drive
Pinion
and the cam turns.
Manual start
The latch 165
which is connected
to the switch arm
53 engages
in the
four-sided
plate when the
tonearm is moved
manually.
The switch
arm connects
the mains supply
to the motor 141
via
the power
switch 125 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 bot on
the segment 185
engages the latch
165 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
74 to
"
co ". The
rotary knob
74 turns the
switch angle
220. T he
switch
rod
219 keep the
change lever 147 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 is
brought to the
"stop" position
or the rotary knob 74 to
position "1".
Adjustment Point
Pull mains plug.
Remove platter 4.
Bring rotary knob
74 to
position
"co". Turn cam
wheel to central
position. The change
lever 147
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 223.
Stopping
When control lever is
set to "stop position
the start slide 58
which is pulled
towards the cam
by means of tension
57, 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.
Fig.
14
Fig.
15
208 219
190
144
148147
204 197
19
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 178 after every start
(longer end of the guide
lever towards cam wheel centre).
The shut-off bar 171
is guided along in
proportion to the mo-
vement of the segment 185.
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.
9

Dual CS 626 Specifications

General

Brand	Dual
Model	CS 626
Category	Turntable
Language	English