PS-6750 motor

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Daveydguk
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PS-6750 motor

Post by Daveydguk » 27 Dec 2019 17:55

Hi. Is it possible to refurbish the motor on Sony PS-6750 deck. There are no instructions in service manual. I think my motor has issues. Had to remove a little bit of metal from top of motor thinking it's part of power supply brush..

I love second hand hifi and would like to keep this TT going. Everything else seems in good shape.

Thank you.

Deck is spinning but very slight clicking noise.

Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 03 Jan 2020 18:25

Ok. Opened motor up. The brushes around spindle are gone. Little brushes connected to copper spring have disconnected. Have pictures. How do I post on forum ?

Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 03 Jan 2020 20:45

Motor Pics
Attachments
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DSC_0004.JPG
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Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 03 Jan 2020 20:49

As you can see underside of top motor casing lid. One side missing metal bush, other side metal bush is loose so no power getting to motor.

Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 07 Jan 2020 17:31

Ok. Getting bloke to look at repair. Will report back and take more pics and replacement part catalogue numbers if I can. Hopefully help others with similar issue for the record. Bad joke. ;o)

Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 18 Jan 2020 14:08

Cut some small carbon bushes, super glued either end and soldered in the middle. Motor now working again.

Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 18 Jan 2020 14:09

DSC_0025.JPG
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Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 18 Jan 2020 14:10

Wasn't easy. Turntable keeps better speed now.

Daveydguk
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Re: PS-6750 motor

Post by Daveydguk » 01 Feb 2020 21:17

If I had to do a better job I would shape brushes smaller on contact, replace copper spring and tie brushes onto copper with single thread copper wire soldering on the back. Need the correct tools. Anyway. Ps deck it working great and I think brushes will bed in more with time.

I'm a bit disappointed that had no advice from Sony owners. But I know how to strip the motor down now.

Don't if it's working. Thanks

Legrace
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Re: PS-6750 motor

Post by Legrace » 02 Feb 2020 12:02

You have generated a useful resource for others, well done.

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