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cylinder, and hereafter the piston must not be pulled up again, as the silicone fluid would then 
easily stick to the walls of the lift cylinder. If this happens the piston will "go down" much too 
slow. 
 
The tonearm is supplied with damping for the horizontal movement. Damping the vertical 
movement is not always an advantage. If desired, silicone fluid is filled into the well of the 
tonearm base. This is done through the hole, which is seen in the plexiglass on top of the arm 
base, when the arm tube is not on. Resting like this the tip of the syringe can just reach the 
well through this hole. Inject 0.2 ml (20 units) of the silicone fluid into the well, and carefully 
"wipe off" the tip of the syringe on the edge of the well, before pulling the syringe up with a 
little jerk. The plexiglass over the well must not be unscrewed. 
 
The damping of the vertical movement of the tonearm is obtained with the screw, to which the 
arm tube is attached. 
 
It goes all the way down into the silicone fluid. When the tonearm is supplied this screw is in 
its lower position, and if silicone fluid is injected, it will give maximum damping. The damping 
is reduced as the said screw is turned some revolutions up with the hexagon spanner. For 
further adjustment it should be noted, that the screw should not be forced down into the bot-
tom of the well. This will make the tonearm rock in its bearings. Be careful if you want to 
increase damping again. The screw must be at least one revolution above the bottom of the 
well. (If measured the screw must protude minimum 11.5 - 12 mm (about 15/32”) above the 
surface of the plexiglass). 
 

 

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Mounting the cartridge 

 
Using the accompanying finger lever the cartridge now can be mounted on the arm tube. If 
possible, use the accompanying aluminium screws. Provided that the tonearm is mounted, so 
that the distance from the pivot to the centre of the turntable is as indicated on the mounting 
template, the position of the stylus - to obtain correct overhang - should be: with standard arm 
tubes right under the front edge of the black plane of the arm tube - with PRECISION arm 
tubes 4 mm (5/32”) behind the front edge. Also the cartridge should be in parallel to the said 
black plane. Carefully push the terminal jacks of the wires unto the pins of the cartridge with a 
pair of tweezers. Do not squeeze the thin wiring too hard. Red and green are signal and 
ground of right channel. White and blue are signal and ground of left channel. Then fasten the 
arm tube on the arm base with the accompanying knurled not, which should be tightened well 
with two fingers. Check that the overhang is correct - 18 mm (23/32”) - and adjust if 
necessary.

  

 

 

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Adjusting the tone arm 

 
First make a coarse adjustment of the weights. The tracking force weight - and where marked 
2) also the small counterweight - should be back at the end of the counterweight rod, while 
moving the counterweight/s backwards or forwards until the arm tube is balancing in about 
horizontal position. 
 
Apply tracking force by sliding the tracking force weight and may be also the small 
counterweight forwards. Both of these weights will give ½ gram for each indentation that they 
are moved forwards. Thus together they will give 1 gram. 
 
If one of the counterweights is going to be used to apply tracking force, the tonearm should be 
balanced with the weights arranged in such a way that there is room enough to move the 
counterweight in question. 
 
It is an advantage to use as large or as many counterweights as possible. 
 
And by coarse adjustment of the weights it appears that the counterweight can not get far 
enough forwards to obtain balance, the tracking force weight can be slid forwards until 
balance is obtained. This place then will be zero point for the tracking force calibration. If the 

Summary of Contents for DP-6

Page 1: ......

Page 2: ...nting template on the packing of the tonearm is showing the position of the arm base and the arm rest as to the turntable spindle It should be noted that the position of the turntable spindle shown is just an example In order to allow for the most convenient position of the arm base the turntable spindle could have its center anywhere on the arc shown Mark the center of the arm bush and check that...

Page 3: ...l tf 2 Notes 1 Here the small counterweight is used as tracking force weight 2 Here both the tracking force weight and the small counterweight are used as tracking force weights Each of them gives 1 2 gram of tracking force when slid 1 indentation forwards With heavy cartridges or if large tracking force is needed the medium or the large counterweight should be used as tracking force weights as we...

Page 4: ...vided that the tonearm is mounted so that the distance from the pivot to the centre of the turntable is as indicated on the mounting template the position of the stylus to obtain correct overhang should be with standard arm tubes right under the front edge of the black plane of the arm tube with PRECISION arm tubes 4 mm 5 32 behind the front edge Also the cartridge should be in parallel to the sai...

Page 5: ...left side there is a red dot In the right side opposite to the red dot there is a sunk screw in which the hexagon spanner will fit By turning the hexagon spanner clockwise the arm and so the cartridge will be tilted to the left Opposite by turning counter clockwise 1 4 1 2 turn may be enough Put back the arm tube and check if further adjustment is necessary Lateral balance The direction of the cou...

Page 6: ...nsion of the spring however can be altered by loosening the screw in the center of the round black pulley By rotating the pulley with two fingers you can set to a new tension Special about PRECISION arm tubes PRECISION arm tubes are supplied in red and blue versions only They have a wide and very precisely ground mounting plane to assure a good mechanical contact to cartridges which have a similar...

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