Question about Stanton STR8-150 Turntable

1 Answer

Pitch adjust doesnt lock between 0% and +50%

I swear i have tried every damn forum on the net but i still cant find a solution to this!.....
i have a problem with my stanton str8.150.
the pitch adjust doesnt seem to be workin properly.
it doesnt lock. it seems to be playing at a slow speed between 0% and 50% when i go past that it kicks in.
The blue led doesnt come on either (although it works as it lights up if you press the pitch lock button)

I have tried cleaning it using a cotton wool bud and a solvent based cleaner but i still have no luck

Posted by on

  • leemt Jun 30, 2009

    stanton str8.150

  • Aaron Tonning May 11, 2010

    what is it?

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1 Answer

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  • Master
  • 767 Answers

There is a chip in the unit called a
phase lock loop ,( P.P.L )its use as station loc
for stereo turner. But the same applies.
Its drifting and unable to hold/lock
the signel is noisy that its trying to
lock on to (open ground) or the VCO
is out eather way it probley needs
to be replaced.

Hope that help a little

Posted on Jun 30, 2009

  • Audio Service Clinic Nov 21, 2013

    As I read the owner's manual, I see this is a Direct Drive turntable, so my first question is, what are you using the cotton swab and solvent on? Are you saying that the speed is fine when you're a +50%? From what you described, your issue is much different than a pitch control circuit with a Phased Locked Loop circuit bad. If that were the case, you should be able to get it up to speed, with the exception of the speed drifting and unable to lock. I would say you either have a power supply issue or a bad Direct Drive motor. For more information, please visit my website at audioserviceclinic.com. Thank you.

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Posted on Jan 02, 2017

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