Technics SL-5310 DD slowing down in pitch

turning japanese
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jscott909
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Technics SL-5310 DD slowing down in pitch

Post by jscott909 » 22 Sep 2019 21:43

Slows down in 33 and 45 mode. Owned the table since 95 with no oiling or maintenance done to it. help?

Tom_Technics
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Re: Technics SL-5310 DD slowing down in pitch

Post by Tom_Technics » 23 Sep 2019 13:50

Try cleaning the pitch control pot with some contact cleaner from the inside. Spraying from outside won't do much. Also, remove the motor assembly by removing the 3 screws with arrows pointing towards them and re-solder the 3 joints in a triangular formation. Replace the solder and don't just re-flow as these joints are known to degrade.

jscott909
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Re: Technics SL-5310 DD slowing down in pitch

Post by jscott909 » 14 Oct 2019 19:50

I’m not experienced enough to carry out such repairs. Can anyone suggest a Technics repair center in the Midwest for such services? Thanks in advance.

kuja
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Re: Technics SL-5310 DD slowing down in pitch

Post by kuja » 21 Oct 2019 18:17

SL-5310 is a Quartz controlled turntable, so the pitch should be stable?

It has a switch that can defeat the quartz speed control if you wish to use the pitch control wheel in order to manually adjust the speed.

Does your SL-5310 slow down in both pitch switch positions, "quartz" and "adj."?

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