VPI SDS help


I bought a VPI SDS here on Audiogon for my townshend rock 7 turntable. According to my research The rock 7 is ac motor 110 volt.

I installed the SDS with the TT but the TT motor is spinning very slowly at the 33rpm setting. I changed the default sds voltage from 72 to 115 but it's still slow and increasing the frequency from 60 to 65 did not get it working right either.

Am I doing something wrong or does the SDS not work with this TT
radioheadokplayer
I emailed VPI based on that good suggestion here.

VPI responded:

Check the capacitor on your motor, if it is less than .68 microfarads you need to change it for a .68.  Less than that value and the SDS looks at it like it is a short.

MY Question now is how easy is it to change capacitors on a turntable motor?

Thanks

Mike
You may need patience trying to reach VPI - they often don't answer the phones or respond to e-mail for days at a time. There is no excuse given the size of their customer and dealer base.
I should have thought of that, the Classic has to have a capacitor changed to prevent a loud pop or to use the SDS. On the Classic it was very easy, I have never has a Townsend so don't know. I suspect it is not too hard. On the Classic the cap is in the AC line attached with wire nuts [ wire nuts ARE NOT those members given to buying $2000 ICs and $3500 PCs, but I digress]. Try to take the bottom cover [if it has one] off and see if you can see a cap. Unplugged of course.
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I have never heard of needing to open the motor of the turntable and replace a part to be able to use an external motor controller. I am going to contact Townshend regarding the ease and viability of doing so?