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PostPosted: Sun Aug 05, 2018 11:38 pm 
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Joined: Wed Dec 13, 2017 5:38 pm
Posts: 3
Location: port coquitlam, BC, CA
Hi all,
hope this is the right section for my inquiry. I identified speaker channel cut out issues when spinning vinyl being a result of an aged cable kink that had been straightened (who knows when } on my Sanyo model TP-1012 . This unit is also now slowing down frequently when playing, and the auto return has stopped working. Death rattle and new turntable time? or..get new cable and soldier on. Where do In find a RCA with ground open ended one end to solder in place?
Thanks


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PostPosted: Mon Aug 06, 2018 6:06 am 
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Joined: Tue Jun 14, 2016 8:33 am
Posts: 1836
Location: Kingston, ON, CA
The potentiometers for the speed control might need to be cleaned, and that will probably take care of the speed slow down when playing.

Or the power supply capacitors are drying out in combination with that problem. or the bearing needs oiling, or most likely, all three.

There are apparently two sets of potentiometers on this specific table.

One for each speed's main centering of the speed (and are on the main power supply board, internally), and then the second one for each speed, which is the one you can turn on the top of the unit with the small thumb wheels.

If there is a separate speed switch, it can also be dirty.

~~~
Dried out caps, main platter bearing that needs oiling, dirty potentiometers, dirty switches.

Not working on audio return could be broken plastic components or dried out grease of the return mechanism.
~~~

Forgive this inexpensive deck, it is about 40+ years old, so it has done well for it's time, so far.


Looks like it was probably made by micro seiki

https://www.google.com/search?q=Sanyo+m ... l6BhdOfH-M:

It may also need new capacitors on the main motor circuit itself.

It probably needs a full service job, by the sounds of it.

_________________
(Ken Hotte, of) Teo Audio


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