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Azimuth adjustment

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Azimuth adjustment

Postby nmbaumgarten » 13 Apr 2013 16:02

Hi folks! :D

I have a Technics SL-1210 MK2 with a standard tonearm / headshell and an Ortofon 2M Bronze. Unfortunately, the azimuth doesn't seem perfect :(

When I put a perfectly flat piece of pencil-lead (6 cm long) on the headshell and measure each side, there's a difference of roughly 1 mm in height above the LP.
The haedshell is btw twisted all the way to the right when viewed from front.

Now the question:
Should i worry about this or is it okay to run with azimuth a little off? :?


Regards,
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Re: Azimuth adjustment

Postby Japi Roelofs » 13 Apr 2013 17:58

Is the LP perfectly flat? What happens if you measure straight from the platter?
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Re: Azimuth adjustment

Postby nmbaumgarten » 13 Apr 2013 21:41

The LP is perfectly flat and it's the same thing when i measure from the platter :(
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Re: Azimuth adjustment

Postby Japi Roelofs » 14 Apr 2013 03:09

2 small screws under the tonearm (near the headshell socket) can be loosened to adjust azimuth, they are hard to reach though...
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Re: Azimuth adjustment

Postby nmbaumgarten » 14 Apr 2013 07:08

I know but is it worth the trouble? :)
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Re: Azimuth adjustment

Postby keiko5 » 14 Apr 2013 07:22

I've had several headshells where the tiny pin on the male end is located a bit off center. I've tweaked them a bit with needle-nose pliers to get them to align properly. I would try this before resorting to realigning the tonearm collar. If it bothers you, its worth the trouble.
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Re: Azimuth adjustment

Postby nmbaumgarten » 14 Apr 2013 08:07

How did you tweak them? :o

I really don't want to take the tonearm apart as it has had a "cable-job" done which means i will have to solder everything apart to get to the tonearm :(
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Re: Azimuth adjustment

Postby Japi Roelofs » 14 Apr 2013 11:08

Alternative is to buy a headshell with adjustable azimuth
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Re: Azimuth adjustment

Postby M520Man » 14 Apr 2013 14:56

I had the same problem with my stock Technics headshell. Rather than trying to tweak things I ended up purchasing a LP Gear Zupreme headshell and the azimuth issue was gone. It's a great headshell and an awesome value. I bought a second one to accommodate my other cartridge to make swap outs easy.
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Re: Azimuth adjustment

Postby keiko5 » 14 Apr 2013 15:43

nmbaumgarten wrote:How did you tweak them? :o

I really don't want to take the tonearm apart as it has had a "cable-job" done which means i will have to solder everything apart to get to the tonearm :(


The goal is to push on the pin so it leans slightly in the proper direction. I've found a needle-nose pliers works. Be careful, you don't want the pin to fall out or break. I don't grab the pin with the pliers, instead I use one jaw to push on the pin while the other jaw braces.
Last edited by keiko5 on 14 Apr 2013 16:11, edited 1 time in total.
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Re: Azimuth adjustment

Postby Gio_ » 14 Apr 2013 15:53

I dont think you will get much to work with, loosening these. They are not manufactured to allow any adjustment or play. Even if you could tighten them, while twistng the headshell, you will end up with some "juks" (just to throw in a bit of danish slang, for you non-danish readers) :mrgreen:

Heres a pic that shows the screws.

25461
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Re: Azimuth adjustment

Postby Gio_ » 14 Apr 2013 16:12

Stumbled over this thread on another forum.
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Re: Azimuth adjustment

Postby tomez2 » 20 Nov 2013 17:13

That LP Gear Zupreme headshell looks exactly like a Jelco or Sumiko, which is excellent and fixes the azimuth problem. It is however, much heavier than the stock Technics. Not a problem usually if you use the auxiliary counter weight. Makes the arm mass closer to medium I just recently received an AT headshell that had the pin so far off center it was redonkulus..... I mean, the only job for it is to be straight!
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Re: Azimuth adjustment

Postby T.O.S. » 20 Nov 2013 22:46

YouTube Technics azymuth adjustment. There is a film there
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Re: Azimuth adjustment

Postby jwspicer1 » 20 Nov 2013 23:21

When you say "twisted to the right" does that mean (looking straight at the front of the headshell) that the right side (the one with the finger grip) is a MM or so lower than the left side? If so, simply loosen the collar and rotate it (looking from the front) slightly to the left. A little rotational play with those sockets is common. And a common mistake is to either push it all the way to the left or right when tightening it up.

Takes a bit of practice but it can be done - holding the headshell steady when screwing the collar tight. Now if you have it all the way to the right and the LEFT side is too low, then you have a headshell that is off or an attempt to work on the arm has left the collar a bit out of alignment. Then an adjustable headshell like some have mentioned is the safest choice.
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