Kuzma Cartridge set up - Manual (Page 3)

11. Recheck alignment of the cantilever at zero point B. If cantilever is not aligned here, rotate
protractor to find where on line “x- y” the cantilever is aligned again. (Fig.18&15)
Fig. 18 Alongside line “X-Y” alignment at B
If the stylus is still in front of zero point B on the line “x-y” as before, but nearer to point B, then again
pull cartridge slightly forward for distance “S” and repeat the whole process by aligning at zero point
A until the stylus will be at zero point B.
If stylus end up behind the zero point B on line “x-y” then move cartridge in opposite direction to
before, backwards and realign it at zero point A.
If stylus is still behind the B point, the cartridge should be pushed back and realign at zero point A and
realigned again at zero point B.
12. Continue until the stylus is in alignment at both points.
REMEMBER STEPS:
a) Put stylus at zero point A and by rotation align cantilever along XY line.
b) Align cantilever along XY line at zero point B by rotating protractor and see where stylus is on the
line XY- in front or behind zero point B.
c) Move cartridge along (not rotating it) for the same distance as stylus is overhanging zero point B for
the same distance to increase the overhang.
d) Repeating these steps (a,b,c,a,b,c,…) will ensure that stylus& cantilever are in alignment at both
zero points A&B.
NOTE: Ensure that cantilever is not twisted due to bias force.
Appendix 2
Fine Azimuth Adjustment
This can be done using an oscilloscope and a test record or by using good records in a good system
and listening to the sound. Cartridges with fine profiles (VDH, Microline etc.) are more sensitive to
this adjustment. On the other hand cheaper cartridges are not made so well, making fine adjustment
more useful.
With an oscilloscope we measure the differences in crosstalk between both channel. The idea is that
on both channels this is equally small. For that we need a test record with tracks recorded for left and
right channels separately. Then we compare crosstalk from the left channel on the right channel-
which is a very small signal, to the same type of signal from the other channel. By adjusting azimuth,
crosstalk on both channels should be made equal.
Listening from LP:
Start listening with the tube in zero position, with the marking lines aligned. Listen to the sound-stage,
the focus and the stability of the instruments. Release the two locking screws and rotate the Allen key
so that tube rotates for approximately the width of the mark. Listen and then rotate tube for a similar
amount in the opposite direction and again listen. Adjust the arm to the position in which the best
sound was obtained. In this position make further adjustments by turning the Allen key for a quarter
turn in one direction, listening and then turning a quarter turn in the other direction and listening.