Dual 1229 - Cue-Control Operation; Pitch Control for Speed Adjustment; Frequency Conversion (50;60 Hz); Adjusting Tonearm Set-Down Point

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