Dual CS 731 Q Instrucciones De Manejo página 16

With the cueing control in ¥ position, the height of the stylus
above the record can be varied by approximately 6 mm by tur-
ning the adjusting screw (9).
3. Record is to be played several times or once again from the
beginning
Press the START button (12).
4. Pause
Place the cueing control in X position. When this is lowered the
record continues to play. The last few notes played before the
pause are repeated.
5. Switching off
Press the STOP button (13). The tonearm returns to the post.
The unit switches itself off.
6. Automatic continuous play
Place the rotary button (6) in GO position. After the record has
finished playing, the tonearm lowers itself once again into the
run-in groove of the record. The record is played once again.
This is repeated until the switch-off function is triggered off
by depressing the STOP key or the rotary knob (6) is once
again placed in the position for single play.
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Note
In the case of records with unusual diameters, for example
25 cm records, the unit is operated manually. See ''2. Manual
operation".
After the record has been played, independently of whether the
tonearm was placed manually onto the record or whether the
unit was started automatically, the tonearm returns to its initial
position automatically and the unit is also switched off auto-
matically. After use of the record player, it is recommended to
lock the tonearm once again and to tilt down the stylus protec-
tion.
Technical information
Cartridge and stylus
Please refer to the "Information on your unit's cartridge'', en-
closed with these instructions for use.
Fitting a 1/2" cartridge (see page 3)
With extremely light ULM cartridges (ultra-low-mass), your
Dual record player develops outstanding reproduction capabili-
ties. In this case, the characteristics of the tonearm are so excel-
lent that considerably heavier 1/2' cartridges also function
under optimum conditions. Proceed as follows if you wish to
fit a 1/2" cartridge.
1) If there is one on your unit, remove the removal prevention
screw (Fig. 6/'S'').
2) Swivel the tonearm lift (15) backwards and remove the ULM
cartridge from the holder (Fig. 7).
3) Slide the short holder plate (Fig. 8) approximately 5 mm
backwards and lift it off. ;
4) Place the long holder plate onto the tonearm (Fig. 9) in
such a way, that it lies on the surface and the back and is
pointing upwards at the front at an angle of approximately
309. Shift the holder plate so that its large opening ties
above the round guide lug in the tonearm. Now carefully
swivel the holder plate into horizontal position and tightly
pull it forwards until you can feel it clicking into position.
Attach the 1/2' cartridge with the enclosed accessories to
the cartridge holder. This has been fitted correctly if the
stylus — viewed from above — is in the V-shaped recess of
the enclosed fitting template. Viewed from the side, the
stylus must bein the area of the rectangular recess (Fig. 10).
Connect the cartridge holder's connection to the cartridge.
The connections have color codes:
red R_ right hand channel
green RG right hand channel chassis
blue GL left hand channel chassis
white L left hand channel
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7) Place the cartridge holder at an angle from below onto the
tonearm head, press it fully backwards and upwards until
you can feel it clicking into position. Now carefully swivel
the tonearm lift forwards and, if you wish, lock the cartridge
and the stylus to prevent removal by screwing the described
screw.
Depending on requirements, screw on one or both of the
enclosed disk-shaped additional weights to the rear of the
tonearm counterbalance (1). Turn the smaller thread of the
special screw into the thread of the counterbalance. Screw
one additional weight onto the screw — with the knurled
marking on the outside — if the weight of the fitted cartridge
is nO more than approximately 6.5 g and a second one if it
is heavier.
Now once again carefully balance the tonearm — as described
in the section on ''Balancing the tonearm'.
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Fitting cartridges with recess-type cartridge assembly
Cartridges with a Dual recess-type cartridge assembly can be fit-
ted in the same way as 1/2" cartridges. The cartridge holder
(Fig. 11) is designed to permit fitting of such cartridges without
an additional attachment screw.
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Removal prevention
Thanks to an ingenious device, the cartridge and stylus can be
easily safeguarded against unwanted removal. For this purpose,
the self-tapping screw provided with the accessories is screwed
into the hole on the left hand side of the shining pin on the
holder plate (Fig. 6). At the same time, make sure that the tone-
arm lift (15) is vertical to the cartridge head center.
Stylus
The stylus is subjected to natural wear and tear during normal
playing. Therefore, we recommend you occasionally check the
stylus and, in the case of diamond styli, this should be carried
out after approximately 300 playing hours. Your specialist dealer
will be pleased to do this for you free of charge. Worn or dama-
ged (splintered) styli chisel the modulation from the grooves
and destroy records. Therefore, only use as replacement the
stylus types recommended in the technical data of the cartridge.
Copied styli result in audible quality losses and increased wear
and tear of records. Please remember that, for physical reasons,
the stylus holder with the diamond stylus is extremely fine and
must therefore be necessarily sensitive to impacts, shocks or
uncontrolled movement. In order to have the stylus checked,
take the complete cartridge holder (removal from the tonearm
is described above) to your specialist dealer.
Setting the tuning anti-resonator
Your Dual record player has a tuning anti-resonator which per-
mits optimum adaption of the tonearm to the cartridge being
used. Not only Dual ULM cartridges but also conventional 1/2''
cartridges with an net weight from 2 to 9 g can be optimally
adapted with this device. For the ULM cartridge fitted in the
factory, you can find the value to be set in the data sheet of the
cartridge which is enclosed with these instructions for use.
However, this can also be determined from the following dia
gram in the same way as for 1/2" cartridges.
As the example of the ULM 60 E shows, you select the own
weight of the cartridge on the horizontal scale, move vertically
upwards until you find the corresponding fine for the com-
pliance and you project this point to the vertical scale from
which you can then read off the optimum tuning value.
:n order to set the tuning anti-resonator, turn the scale ring in
clockwise direction until you see the determined scale value
above the pointer (Fig. 4).
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