перелопатил немного форумов и вот что нарыл, очень похоже что это то-
ПРОБЛЕМА - у человека случайно тонарм сорвался и головка скользнула через пласт - после этого тушка стала очень близко к диску.
Все фотки которые я увидел по 440-ой в своём большинстве так и выглядят - низколетящими +-,
Народ говорит что даже и БЕЗ механического воздействия эти АТ со временем проседаютю.
Вот в кратце проблема основные моменты по решению проблемы -
PROBLEM:
I bumped my turntable the other day and the tonearm skidded across a record. Now the cart is riding really low, very close to the record surface. Looks like it could actually make contact with a slightly warped record.
1) Well, provided the cantiler itself wasn't bent, you might be lucky, 'cause in that case the rear part of the cantilever assembly might have just slipped forward a bit despite being intended to be held in place by the so-called "compliance adjustment screw". So you could try to open that screw, push the cantilever assembly back into the plastic holder as far as possible (by exerting a bit of pressure onto the front part) and lock it with the screw again. But of course the accident may have just as well stretched the "flexible filament", that connects the front part of the cantilever assembly with the rear part (which actually is just a kind of metal shell around the reard end of the flexible filament). In that case you could try to make a kind of u-shaped shim e.g. from a piece of stiff plastic foil to go between the damper ring and the plastic holder - this method can also be used as an alternative cure for the comparatively rare cases of shrinked damper rings...
Greetings from Munich!
Manfred / lini
2) The thing with AT cartridges is that the cantilever can slip even with normal use. It's very rare but it can happen so a bump and skid across a record could definitely do it.
I have an AT912Sa (one of several cartridges I have for CD-4 records) and, one day, I noticed the cartridge body was very close to the record surface. Upon investigating, I deduced that the cantilever had slipped out of control of the compliance screw. I loosened the screw, pushed the cantilever back a bit until it felt "right" and tightened the screw. It has been fine since.
Now granted, I have done many things with styli over the years but I believe if a person has nominal mechanical skills and dexterity, you should be able to do it. And as others have said, there's nothing to lose since you really can't use the stylus as it is.
Doug
3) I bought an AT15Sa last year with an aftermarket needle that looked very similar to the 2nd photo whilst playing a record. I thought the spring wire was broken or the suspension had collapsed, but upon removing the needle from the holder I could see that the cantilever was bent upward just forward of the suspension. Visually it no longer lined up with the back half towards the magnets.
I decided to try straightening it between my fingers, as there was nothing else to lose. Applying pressure slowly, repetitively and checking the alignment each time, I was actually able to straighten it out, and now it plays fine.
There may yet be hope for this one.
Теперь вопрос к вам уважаемые знатоки - может кто разбирал и уже знает хде этот подстроечный винт и как надо действовать из личного опыта? ж чуствую - это оно.
Понятно что буду пробовать сам но пока обрезан по времени, как только сразу отпишусь
ПРОБЛЕМА - у человека случайно тонарм сорвался и головка скользнула через пласт - после этого тушка стала очень близко к диску.
Все фотки которые я увидел по 440-ой в своём большинстве так и выглядят - низколетящими +-,
Народ говорит что даже и БЕЗ механического воздействия эти АТ со временем проседаютю.
Вот в кратце проблема основные моменты по решению проблемы -
PROBLEM:
I bumped my turntable the other day and the tonearm skidded across a record. Now the cart is riding really low, very close to the record surface. Looks like it could actually make contact with a slightly warped record.
1) Well, provided the cantiler itself wasn't bent, you might be lucky, 'cause in that case the rear part of the cantilever assembly might have just slipped forward a bit despite being intended to be held in place by the so-called "compliance adjustment screw". So you could try to open that screw, push the cantilever assembly back into the plastic holder as far as possible (by exerting a bit of pressure onto the front part) and lock it with the screw again. But of course the accident may have just as well stretched the "flexible filament", that connects the front part of the cantilever assembly with the rear part (which actually is just a kind of metal shell around the reard end of the flexible filament). In that case you could try to make a kind of u-shaped shim e.g. from a piece of stiff plastic foil to go between the damper ring and the plastic holder - this method can also be used as an alternative cure for the comparatively rare cases of shrinked damper rings...
Greetings from Munich!
Manfred / lini
2) The thing with AT cartridges is that the cantilever can slip even with normal use. It's very rare but it can happen so a bump and skid across a record could definitely do it.
I have an AT912Sa (one of several cartridges I have for CD-4 records) and, one day, I noticed the cartridge body was very close to the record surface. Upon investigating, I deduced that the cantilever had slipped out of control of the compliance screw. I loosened the screw, pushed the cantilever back a bit until it felt "right" and tightened the screw. It has been fine since.
Now granted, I have done many things with styli over the years but I believe if a person has nominal mechanical skills and dexterity, you should be able to do it. And as others have said, there's nothing to lose since you really can't use the stylus as it is.
Doug
3) I bought an AT15Sa last year with an aftermarket needle that looked very similar to the 2nd photo whilst playing a record. I thought the spring wire was broken or the suspension had collapsed, but upon removing the needle from the holder I could see that the cantilever was bent upward just forward of the suspension. Visually it no longer lined up with the back half towards the magnets.
I decided to try straightening it between my fingers, as there was nothing else to lose. Applying pressure slowly, repetitively and checking the alignment each time, I was actually able to straighten it out, and now it plays fine.
There may yet be hope for this one.
Теперь вопрос к вам уважаемые знатоки - может кто разбирал и уже знает хде этот подстроечный винт и как надо действовать из личного опыта? ж чуствую - это оно.
Понятно что буду пробовать сам но пока обрезан по времени, как только сразу отпишусь
"Деньги есть, а времени нет" - Михаил Жванецкий