Counterbalancing of the tone arm
Adjustment of tracking and antiskating force
1, m as
adjustment knob 7 is tumed counterclockwise
ig. 3).
2. The tracking force adjustment knob 4 is set to "O".
3. The tone arm counterbalancing weight 3 is removed from the
packaging and slid over the tone arm in such a way that the visible
bronze spring is situated under the flat surface of the tone arm tube.
Beyond a distance of about 15 mm, a resistance to further motion
can be felt. From this point onward, the knurled knob is turned with
a slight pressure (fig. 4).
4. The power switch 16 is depressed. Operational stand-by is indica-
ted by the light-emitting diode in push-button 15. The cueing lift
lever 5 is swung forward, if necessary. The stylus guard 12 is
removed.
5. The tone arm is now swung into the zone between the turntable
edge and tone arm support. After about 5 s, the tone arm lowers
automatically.
6. The tone arm counterbalance 3 is turned forward or backward by
means of the knurled knob, until the tone arm floats freely in a
precisely horizontal position.
The tone arm is returned to its support and locked in place.
. The tracking force specified for the built-in pick-up system Is set by
rotating the scale 4 as required. The tracking force for the cartridge
OMB 20E, supplied as standard equipment, is 12.5 mN.
Attention! If the unit is equipped with a different cartridge, the
required tracking force is specified on the data sheet for the
cartridge concerned.
For the antiskating adjustment 7, the appropriate value is set in
accordance with the following table:
on
Tracking force
Antiskating adjustment 7
Tracking force scale 4
Dry tracking
Moist tracking
1
=10
mN
1
0.7
OMB 20E —1.25 = 12.5
mN
1.25
0.8
1.5 =15
mN
1.5
1.0
2
=20
mN
2
1.3
25
=25
mN
2.5
1.8
The unit is turned off by releasing the power switch.
Dust cover
Start
— A rotational speed of 33% min. ~ is automatically preselected.
— The quartz-controlled rotational speed is indicated by the light-
emitting diode in the corresponding push-button.
— Attention!
A special stylus must be inserted for playing 78 min. records.
— The cueing lift lever 5 is swung backward,
— The stylus guard 12 is removed by pulling toward the front, andthe
tone arm lock is released.
— The tone arm is moved by hand into position over the run-in grooves
of the record, or over any desired cut.
— The tumtable turns.
The LED blinks in the respective push-button until the quartz-
controlled rotational speed is reached.
After that, the LED is constantly illuminated.
Swing cueing lift lever 5 forward.
The tone arm lowers.
The unit can also be started without swinging cueing lift lever 5
backward.
— The tone arm remains raised over the record after it is swung into
position until the turntable reaches the quartzcontrolled rotational
speed and then lowers gently.
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Interruption of operation, tone arm lift
With the use of the cueing lift lever 5, the tone arm can be raised from
any arbitrary position - also for brief interruption of operation - and
then repositioned and lowered.
— If the tone arm is lowered, the cueing lever is directed to the front.
— Ifthe tone arm is raised, the cueing lever is directed toward the rear.
During playback operation the tone arm can also be raised by pressing
the respective rotational speed push-button and then lowered without
using cueing lever 5.
Stop
— Atthe end of the record, the tone arm is raised, and the unit switches
off automatically.
— The unit can also be switched off by raising the tone arm with the use
of the cueing lever 5 and returning it to its support.
— Itis advisable to always lock the tone arm in place after returning it to
its support.
— The unit is switched off by releasing the power switch 16.
78 min."
Attention!
A special stylus must be inserted for playing 78 min." records.
— For the built-in pick-up system, OMB 20E, supplied as standard
equipment, a stylus of type DUAL DN 167 must be employed. This
can be obtained from one's dealer.
— If a different cartridge is employed, the authorised dealer should be
consulted,
Replacement or installation of the cartridge
Instead of the built-in cartridge, or in the case of units not equipped
with a cartridge, a 1⁄2" cartridge with a mass of 2 to 10 g can be
installed. Appropriate cartridges are available from the DUAL acces-
sory assortment.