Dual 601 - Tonearm Control; Cue Control

Tonearm
Control
Fig. 14 Tonearm guide mechanism
•
Automatic
movement of the
tonearm
is initi—
ated by the control cams an the inside of
the cam
wheel (144)
an
rotating through
360 °
.
The
control elements for
raising and lower—
ing are the
control lever (154) and
lift pin
(216), for
horizontal movement of the tone —
arm control lever (154) with segment (258).
The automatic tonearm set down is
designed
for 30 cm and 17 cm
records and is coupled
to
the platter speed changeover.
The
set—
down points of
the tonearm are determined
by the spring pin
of segment (258) contac—
ting the
positioning
slide
(256).
Limita—
tion of
the
horizontal
movement of
the
tonearm is
produced by
the pin
of
segment
contacting the
stop
attached to
the
slide
bar
(256).
Only
during
set—down does
con—
trol
lever
(154)
lift
the
slide
bar
(256)
and the
stop
attached to
lt
which,
as a
result,
moves
into
the
swivel
range
of the
stop
pin
fitted an
the
segment.
After
com—
pletion
of
set
down
(lowering
of
the tone
—
arm
onto the
record) the
slide
bar
(256))
is
released
again
and
returns
to
neutral
position.
As a
result the
stop
moves
out
of
the
swivel
range
of the
stop
pin so
that
unimpeded
horizontal
movement of
the
tonearm
is
possible for
playing.
CueContnol
The
cue control permits
gentle set—down of
the
tonearm at any
desired point (outside
the shut—off range) on the
record.
By moving the layer
(41) (moving
forwards)
lift cam
(249) rotates.
The
slide bar (256)
connected to lt
transmits this movement to
the lift
pin which then raises the
tonearm.
After moving
the tonearm into the
required
position
an the
record,
the
lever is
re—
leased
by
gently
moving to
the
rear. As
Fig.
15 Tonearm
lift
tonearm raised)
173 144
203
189
163
256
225
262
154
265
a result, slide bar (256) is released
and the tonearm lowers slowly.
Lowering
of the tonearm is damped by silicone
all
in the lift tube.
The
heigt of the
stylus
above the
record
can be
varied by
turning
adjusting screw
(70
within the
range 0 — 6
mm. The
dis—
tance
is
increased by
turning clockwise
and
the
distance between
record and
stylus
can be
reduced by
turning
anti—clockwise.
249
41
256
201
70
216
258