VPI Industries VPI JMW-3D Скачать руководство пользователя страница 5

 

when playing a record.  The arm is moving in 3-dimensions and will only 

approximate the accuracy you have built into your alignment. 

 

 

Slightly loosen the screws in the alignment jig and place into position by 

sliding  the  narrow  end  with  the  “V”  cutout  against  the base of the male 

bearing uni-pivot. 

 

 

While holding the “V” against the bearing well, swing the other end (with 

the  hole)  over  the  turntables  spindle  so that the spindle holds the jig in 

place.  Lightly re-tighten the screws. 

 

 

 

 

While the arm is in its rest, loosen the screws that hold the cartridge

 

just 

enough so the cartridge can be moved back and forth. 

 

 

Carefully swing the arm over the grid at the far end of the jig and place 

the stylus as close to the dot in the center of the grid as possible.  Using a 

lighted magnifier will make this job very easy. 

 

BE VERY CAREFUL NOT TO DAMAGE THE CARTRIDGE STYLUS: 

 

 

Move the cartridge so that the stylus rests on the dot.  Now, viewing the 

cartridge  from  above,  line  it  up  so  that  its  sides  are  symmetrically 

positioned  between  the  lines  of  the  grid.    If  the  cartridge  has  parallel 

sides,  these  should  be  made  parallel  to  the  grid  lines.    Also  make  sure 

that  the  cartridge  is  centered  between  the  sets  of  lines.    Follow  picture 

below. If you can see the cantilever clearly you can align the cantilever to 

the alignment grid.  This is difficult and may produce no increase in sound 

quality. 

 

Содержание VPI JMW-3D

Страница 1: ...PI JMW 3D Printed Tonearm Manual THIS MANUAL IS GOOD FOR COMPLETE ARMS OR ARMTUBES ONLY Setup and Instruction Manual VPI Industries Inc 77 Cliffwood Ave 5D Cliffwood NJ 07721 http www vpiindustries co...

Страница 2: ...ring parts Finger oils on the bearing cup in the upper bearing housing or on the lower pivot point in the arm base assembly can cause blemishing of the bearing and possible corrosion Also the point is...

Страница 3: ...ews this is a soft material and you will damage it if you over tighten For cartridges with pass through mounting holes Use the hardware supplied with the arm Remember to use the washers under the scre...

Страница 4: ...nector Make sure the unipivot is centered in the female bearing the arm should feel free in all directions Place the arm in its rest At the rear of the arm base assembly is the connector block Plug th...

Страница 5: ...e moved back and forth Carefully swing the arm over the grid at the far end of the jig and place the stylus as close to the dot in the center of the grid as possible Using a lighted magnifier will mak...

Страница 6: ...tip as the cartridge is positioned Place the arm back in its rest Without letting the cartridge move tighten the screws holding the cartridge to the arm head Do not over do it as you will damage the J...

Страница 7: ...e arm to one side For the cartridge to properly track the record groove the stylus must be ninety degrees to the record surface Move the counterweight so a slight tracking force is applied and the sty...

Страница 8: ...as a spring and pushes the arm back without affecting the sound quality Adjust the counterweight so there is no down force on the cartridge Swing the tonearm toward the spindle and release it The arm...

Страница 9: ...f the number above the index mark and the number of complete turns taken The old wisdom which had the arm tube parallel to the record surface assumed not only that all cartridges had the same internal...

Страница 10: ...hum is present first connect a ground lead from the connector block to the preamplifier or amplifier to which the output cable is connected If this does not eliminate the hum run a ground wire from t...

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