Technics SL-BD20D

turning japanese
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Machinenoid99
United States of America
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Joined: 06 Jan 2019 15:19

Technics SL-BD20D

Post by Machinenoid99 » 06 Jan 2019 15:30

Happy Sunday folks!

I’ve got a Technics SL-BD20D
bought it New in 1998. This thing has NEVER given me an issue until now. I bought a new belt and stylus recently, and that’s all well and good. However, the speed fluctuates slightly. I’ve adjusted from the bottom, but not long after you do that, it starts getting wavy again. I’ve never opened one of these up, and I’m assuming this is something minor, like cleaning something. Just don’t want to destroy this! Anyone else had this issue and know a good fix? Thanks so much!

Electone
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Re: Technics SL-BD20D

Post by Electone » 07 Jan 2019 02:05

The pitch control pot needs cleaning. A product like Caig Deoxit sprayed directly into the pot and the exercised back and forth to distribute the product will do the trick. It is best to take off the bottom of the turntable to access the pot. Spraying willy-nilly at the pitch control from the outside will not get the product where it needs to go.

Machinenoid99
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Joined: 06 Jan 2019 15:19

Re: Technics SL-BD20D

Post by Machinenoid99 » 07 Jan 2019 02:36

Thank you! I will give this a try. I figured it’s probably pretty dirty in there. It’s a good 21 years old. Part of me would love something new, but the price tag has me saying, let’s keep this one going as long as possible! Ha.

Machinenoid99
United States of America
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Joined: 06 Jan 2019 15:19

Re: Technics SL-BD20D

Post by Machinenoid99 » 08 Jan 2019 02:19

Well hell. It didn’t work. I noticed that the capstan seems to have a snag maybe? It doesn’t spin a whole revolution smoothly.

Electone
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Re: Technics SL-BD20D

Post by Electone » 11 Jan 2019 00:25

If by "capstan", you mean spindle, there is the possibility that you have a gummed up spindle bearing. The spindle can be removed from the bearing well and both parts cleaned with alcohol and then fresh oil applied. There is probably a retaining nut or screw underneath that needs to be removed first. Some spindles have a small ball bearing on the bottom - be careful not to lose it. Apply several drops of oil into the bottom of the bearing well and a few drops to the spindle, then re-insert.

OldMusicOnVinyl1
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Re: Technics SL-BD20D

Post by OldMusicOnVinyl1 » 30 Aug 2019 14:19

I know this thread is a half year old, BUT...

If all else fails, give the base of the motor spindle (where the belt is attached) a few drops of oil.

Did the trick instantly for my SL-BD20A purchased new in the very early 90's. Had some speed issues from about 2008, until the spring of 2011 - when I lubed the motor as described.

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