Question about Technics SL-1210 Turntable

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Technics 1210 MK11 - 'Click' in tone arm movement

I've had a problem with needles jumping on some records for a while now. On further investigation this seems to be linked to a click on the tone arm movement. This click is not present on my other deck which has no such problems. Basically if you move the arm from side to side it 'clicks' at a consistant point, about 2/3 across the movement range from out to in. It moves fine before and after this point. Any ideas on what this is and how it might be fixed?

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Your tonearm is damaged at the pivoting screw. Unfortunately, there is no easy way to fix this other than replacing your tonearm. The pivoting screw is a cone shape screw - aka conical screw - and this sits on 4 ball bearings, with a very thin piece of sheet metal which keeps the ball bearings in place. If this thin piece of metal is damaged - more than likely indented - it causes this sort of clicking sound you speak of. You will need to have the tonearm replaced, as this cannot be fixed. Or, shall I say, it will cost you more to try and fix the problem than it will to just replace the tonearm:

FIX = 3-6hrs @ $85/hr
or
REPLACE = 1hr @ $85 + $70 (tonearm)

You do the math.

Technics Tonearm can be purchased here, but this is not an easy replacement, and you could do more damage if you are not sure of what your doing. Professional repair is recommended. You can buy the part, then bring it to the service shop.



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Posted on Apr 30, 2009

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It's clearly a mechanical interference under the hood, so to speak. If you're comfortable with this, unplug the power and signal from the TT, remove platter and manually rotate the tonearm across its arc, listening or feeling for the drag. Maybe you will see the cause with the platter off.

If not, remove the headshell so it won't be damaged, remove the turntable from its base and lay it upside-down, being careful to keep the platter engaged so it doesn't fall off, on a thick soft fleece blanket supporting the whole thing by the platter so nothing stresses or interferes with the tonearm. Once again, rotate the tonearm and observe. I'm sure you'll hear or feel where the problem is. The next trick would be to resolve it.

I have an old Dual 1249 that had the same sympton as yours and it was a mechanical binding near the mechanical pivot area beneath the base. One of the links to the auto-eject mechanism was rubbing and you could see the wear on it. The tonearm assembly had come unseated in its cut-out and I just pressed down on it (from its normal top) and it popped back into place, about 1 mm. Voila! Fixed.

Posted on Apr 21, 2009

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