Cue-Control
Your
Dual
player is equipped
with a
highly
precise,
silicone-damped
tonearm
lift
device
(cue
control)
that
can be
operated smoothly
and
without
vibrations.
With
it,
the
tonearm
can be set
to
the
desired
point on the
record
more
gently than
by hand, The rate
of
descent
of
the
tonearm
is
unaffected
by
temperature
changes,
The cue-control
lever
has
two
positions:
!
playing
position
V
selecting
position ltonearm
raised)
A
light touch on the
lever
starts
the controlled
desc{nt
of
the
tonearm.
The height
of
the
stylus
tip
over
the
record
in
the
raised state
V
can be varied
from
O
to
6 mm
by turning
the adjustment
screw
@.
Pitch
control
Each
of
the
three standard
speeds
(33-113,45
and
78
rpm)
can
be
varied
about 6
%
(about
a
semitone)
with
the pitch
control.
This permits
adjusting
the pitch
and tempo
of
recorded
music,
The
speed
of
the turntable can
be
adjusted
even
during play
by
observing the stroboscope.
When
the turntable
rotates
at
exactly 33-]/3
or 45 rpm, the pattern
of
lines on
the
strobos-
cope appears
stationary.
lf
the
pattern
appears
to
advance
in
the
same
direction
as
the
turn_
table,
the turntable
speed
is
too
high.
lf
the
pattern
appears
to
retreat, the
speed
is too
slow.
Adjustment
is
made
with
the pitch
control
knob @.
The
angle
of
view
of
the
strobos-
cope can be
altered
by
turning the rim of
the
stroboscope viewing
window.
50
or 60-Hz line
(mains)
frequency
Conversion
to a
different power line
fre-
quency
is
accomplished
by
exchanging
the
motor drive
pulley and
resetting
the
strobos-
cope.
To do
this, the turntable platter
must
be removed.
The motor pulley (Fig. 23
A)
can
be pulled
off
after
loosening its
setscrew,
Adjusting tonearm
set-down
point
When
the
operating
switch
is
moved,
the
tonearm lowers automatically
and the
stylus
enters
the
run-in
groove
on the
record.
Occasionally,
with
a cartridge
fitted
after
the
unit
leaves
the
factory,
the stylus may touch
down
too
far
into
the
record
or
outside
the
edge
of the
record.
Fig.23
Caution!
Handle
the pulley carefully.
,A
da-
maged
pulley
causes
rumble.
Part numbers
for
motor
pulleys:
50 Hz,
part no.218
275
60 Hz,
part
no.218
276
To
reset
the
stroboscope, loosen
the
cylinder-
head screws,
turn
the
housing
to "50"
or
"60"
and
retighten
the
screws.
Removing
the turntable platter
For
removing and reinstalling the
spring ring
that
secures
the turntable platter, the
acces-
sories
include
a
cone-shaped spreader
that
is
to
be
set into the
turntable
bearing
hole.
Fig. 25
A
Removing
the
spring ring
Fig.
25
B
Replacing the spring ring
lmportant!
Be careful, when
removing
and
replacing the
turntable platter, not to touch its
running
sur-
faces
or
those
of
the
idler wheel
or the motor
pulley.
Fingermarks
on
those
surfaces
can
cause slippage,
which
in turn
can
case
speed
variations
(wow or
flutter).
30
Fig.26
ln
such
a
case,
set
the record
size selector
to
30 cm
(12"1
. The adjustment
screw
@is
next
to
the tonearm
rest,
Place
a
3o-cm 112"1
record
on
the turntable
and start
the unit.
lf
the stylus
reaches the
record
too far in, turn
the
adjusting
screw
slightly
to
the
left;
if
it
falls too far out, turn
the
screw
to
the right.
Service
AII
lubrication points
have been adequately
supplied
with oil.
Under
normal
conditions,
your
player should
f
unction
without
diff iculty
for
many years.
Do
not
oil
any part
of
the
player.
Special
lubricants must
be used.
Should
your
player
ever require
service,
please
take
it
to
your
dealer
or
ask
him
for
the
address
of
the
nearest
authorized
Dual
service
agency.
Please
be sure
that only
genuine Dual
replace-
ment
parts are
used.
Ship
your
player
only in
the
original
con-
ta
iner.
n
v
-
Fis
)frs
Cq'W
@
Fis.25
Fig.21
Fig.24
12
22