Help VPI SDS Issue

I had this exact problem after I upgraded my TNT to a superplatter, ring clamp and SDS. In my system, it was caused by the SDS - the SDS does not provide enough start-up torque with the older SAMAs. In my case, I had a 14 year old SAMA. I changed the SDS voltage and VPI even sent a capacitor, but nothing helped. The solution was to purchase and install the VPI 300rpm motor upgrade kit. Check it out here:

http://www.elusivedisc.com/prodinfo.asp?number=HW-SCOUTM

It was very easy to do and competely took care of the issue. I run the SDS at the factory set voltage and my TNT is quiet and starts up each and every time.

Brent

Hello,
Have you gone into calibration mode on the SDS and adjusted the settings? You should be able to correct this.
If you don't know how, go to the VPI website and select "Manuals". There is a word document explaining calibration mode for the SDS.
Hopefully, that's all you need to do.

Cheers.

Tom

Tfkaudio-

If I'm not mistaken, the only voltage adjustment available for the SDS is for the 'steady state' voltage, i.e. the SDS always starts at 115v (for maximum motor torque), and after a few seconds drops to whatever 'run', or 'steady state' voltage you've selected (for a more quiet motor).

I've got a feeling that the issue is the 600rpm motor-I've never had a problem with my Aries 2.

Same thing when we added the SDS to my friends Clearaudio Champion. Just give the platter a little shove. BTW- we needed to up the Hz on 33.33 and lower on 45 RPM from factory setting. Once we dialed it in using the strobe the sound was absolutely astonishing. Pace, rhythm and timing are not just audiophile and reviewer buzz words. The sound took on a CD-like quality, and I mean that in the best sense. Tight bass, quieter background and just an overall rightness to the music.

Johnbrown,
Yes, you are correct. I hadn't dealt with those settings in so long that I forgot what could be customized.
Please ignore my prior post.

That does lead me to ask a question. Do SDS users leave the motor turned on, so that the table starts spinning when the SDS is turned on? Wouldn't you have to do it this way to take advantage of the ramped up voltage at turn-on? Or does the SDS ramp up the voltage when it senses that the motor has been turned on?
Cheers.