VPI Industries JMW-9T Manual de usuario Pagina 5

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constantly moving target when playing a record. The arm is moving in 3-dimensions and will
only approximate the accuracy you have built into your alignment.
Place the Alignment Jig into position by sliding the V groove cutout against the arms
main bearing shaft. While holding the one end against the bearing shaft, swing the
other end (with the hole) over the turntable's spindle so that the spindle holds the jig in
place. If the fit is not perfect you can loosen the two screws and move the jig to make
the fit tight.
While the arm is in its rest, loosen the screws that hold the cartridge just enough so
that 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's 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.
Double check the adjustments made above. The cartridge needs to be both centered
and "square" between the gird lines and have the stylus resting on the dot.
The alignment gauge does not have a hole or dimple to hold the stylus. While the
printed dot makes it harder to keep the stylus in place, this method was chosen to
avoid the possibility of damaging the stylus cantilever or the diamond tip as the
cartridge is positioned.
Place the arm back in its rest. Without letting the cartridge move, tighten the screws
holding the platform or cartridge to the arm head. Make it tight, but don't over do it and
strip the threads or distort the cartridge body.
Double check the horizontal balance, lateral balance, and tracking force and adjust as
needed. Increase the tracking force by 1/10 of a gram above the cartridge
manufacturers highest recommended force.
ARM HEIGHT:
Place a record on the turntable, lower the arm onto it and make the arm tube parallel
to the record surface by rotating the arm-height ring as needed. Remember to loosen
the two setscrews in the base with the supplied Allen wrench.
This is a good initial setting. You may wish to vary it depending on the cartridge you
are using and or the particular record being played.
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