I need stylus for sl-bd20 .what model ? and where online ?

Hello Jim, for what you say, the arm of your tray returns before you finish reading the disc?
If so, it may be that the return system of the arm is stuck or missing cleaning or lubrication, if you have the knowledge, should review the operation of said system, suggestion, remove the lower cover of the tray and aopye the tray in four high legs, which allow you to see the operation of the mechanism and see if it is working free or stuck
If not, go to a specialized technical service
Greetings Franco Dosil

Hola Jim, por lo que expresa, el brazo de su bandeja retorna antes de que termine de leer el disco?
Si es asi, puede ser que se encuentre trabado o falto de limpieza o lubricacion el sistema de retorno del brazo, si tiene los conocimientos, deberia revisar el funcionamiento de dicho sistema, sugerencia, retire la tapa inferior de la bandeja y aopye la bandeja en cuatro patas altas, que le permitan ver el funcionamiento del mecanismo y ver si esta trabajando libre o atascado
si no, concurra a un servicio tecnico especializado
Saludos Franco Dosil
https://www.manualslib.com/products/Technics-Sl-Bd20-Service-2611757.html

Absolutely ,without problems

The proper stylus is the best you can afford. However the cartridge itself will only take certain types. To find which simply enter the cartridge make and model number into Google and see what comes up.
Actually most hi-fi buffs say it's the cartridge and stylus combined that gives the best sound, since many cartridges fit only one stylus it's often the cartridge that is the real choice. Most turntables will take a wide range of cartridges, so you pay your money and take your pick.

It's 'TechnicS' and 'stylus'. Wouldn't a web search have been faster?

"TECHNIC SL-3350 stylus"

But even 'technic" and 'needle' would have worked.

http://www.lptunes.com/Technics-SL-3350-turntable-stylus-replacement-p/tstsl3350.htm

Earth cable available here :-

http://cgi.ebay.co.uk/TECHNICS-GROUND-WIRE-SL-BD20-SL-BD22-BD22-NEW-PART-/300419439062?cmd=ViewItem&pt=Turntable_Parts_Accessories&hash=item45f264d9d6

just get any small speaker wire and use that as your ground , attach that to the reciever you are using

Try adjusting the tone arm weight so that the arm will be slightly heavier.

If this does not help, see if the tone arm manual lift handle is operational and fully released when the arm sits on the record.

Another possible cause are the tone arm position sensors inside the unit.

Hope you can fix it.

regards

Triarcuate

go to this site http://www.needledoctor.com/Online-Store/Turntablete? they may stock it?

Well, the motor itself is completely separate from the sound. The path of the sound is basically

Styli -> Cartridge -> Tonearm -> RCA Cables -> Input Source

I would say start from the beginning. Check your stylus. If it's ok, then that means your Cartridge is probably ok. Make sure you have a secure connection from the tonearm to the cartridge assembly.

There really isn't much else to it.

If you cannot get it to work, I would suggest taking it to a service center for assistance.

- OPTiC
Electronic Repairs & Service
A DJ Pro Audio Co.

http://www.lptunes.com/Teac-SL-A100-SL-A100-SLA100-turntable-stylus-p/teacttala100.htm