TT stopping in midstream of playback? Perplexed.

I'm new to Audiogon. On March 20th, I posted a thread describing the recent power supply issues I've had with my AVID Volvere TT, and that I'm now having with my Sequel. Refer to: Anyone else had power supply issues with AVID TT? That thread contains all of the details regarding this interesting little quagmire. My Sequel has now inexplicably stopped in mid-playback 4 times (and counting) in the first month that I've owned it. The reply I keep hearing is that this issue must be related to my AC power. However, I measured my AC voltage over a three day period (Thurs. - Fri. - Sat.) and the fluctuation noted was between 117-122 volts. Throughout these TT interruptions, the Sequel power supply remains 'ON' and only 'playback' - the TT's spinning platter - is being affected (different than what the problem was with the Volvere). AVID had informed me that "the only thing that we can think of that is causing this is that the electrical supply to the power supply is being interrupted. This would affect the DSP section on the PSU, and not the power supply, hence it remains on". I was recommended to use my mains filter, hence I now have the Sequel plugged into a Shunyata Alpha 6 line conditioner, and still the issue persists - it stopped playing inexplicably again last night!. This is the most unique experience. I'm well aware of AVID's solid reputation, and that's one reason I bought the product. I also love this table and I do want to resolve this, but I find I honestly cannot think of anything that is happening on my end that may be causing this to occur. The fridge is on an entirely different breaker, as are the digital lines for both my computer and TV, and I always unplug the fridge when listening to music anyway. I've measured my voltage. Now I'm trying to identify a pattern between occurrences. I've plugged the Sequel's power supply into the Shunyata, as per AVID's recommendation, and still it stopped. I plan to continue to monitor this in the next two weeks, and if the issue persists, then I may have to return it to AVID - it's still under warranty. This is embarrassing. The customer service where I shop has been great, as has AVID. I feel like a nagging old ninny, but I swear, the damn thing keeps stopping in mid playback and it seems like there's absolutely nothing I can do about it. I'm a little stunned with it all. I made the investment of course with the hope that anything like this would never happen, and that I could have a great table for a least 5 -10 years or so. ARE THERE ANY OTHER TURNTABLE OWNERS OUT THERE WHO'VE EXPERIENCED A SIMILAR PROBLEM? I've heard about the static issue - thank you. ANYONE ELSE? Any suggestions?
PS: AVID has been great, and I made the Sequel upgrade for a reason: the incredible sound - to my ears - is undeniable. I'm simply fishing for a solution from anyone owning any turntable who may have had the same experience. Thanks for any replies.
I feel bad about your experience. I am an analog diehard for over 20 years and have owned a few turntables. However, I have never had any experience remotely related to yours. All the tables I owned and the one I still own never stops during music playback. I don't think voltage fluctuation will stop the table. It may affect the spinning speed. All my tables are plugged to the wall directly and never see any power treatment.

Since it is still under warranty, I would send it back for repair or exchange if I were you. The time you spend monitoring it or diagnosing the problem should be spent on listening to music. Hope you find a solution very soon.
Are you able to push the platter a bit to get it going again when it stops?
No. I need to reinitiate the turntable 'play' mode again by pressing the play button. The table always starts up again and continues to play beautifully without any issues for an undetermined amount of time and then, however many days or hours later, it stops again. As stated, in the month now that I've owned it, it has only occurred four times, but it's distressing nonetheless, especially when I'm almost 100% positive it can't be my AC.
I think it is a component in the turntables power supply that is overheating and makes the turntable stop. It isn't your ac voltage.
A couple of thoughts/guesses that occur to me based on the fact that the power supply uses digital signal processing to control the motor:

1)Are the power supply, or its power cord, or its output cable, located in close physical proximity to something that might be radiating significant RFI (radio frequency interference) into it or them? Things like digital audio components, plasma TV's, computers, etc.? If so, try to put as much distance as possible between the power supply and its cables and those devices. Conceivably a burst of RFI occurring at just the wrong time could be causing the DSP circuitry to "crash."

2)As a diagnostic measure, and if readily practicable, you might try running the power supply with its top cover removed. Sometimes marginal conditions in or affecting digital circuitry can be temperature sensitive. Removing the top cover will reduce the operating temperatures of the digital devices.

Hope that helps. Regards,
-- Al
Thanks everyone for your suggestions. I won't attempt to remove the cover of the power supply, but I might try turning the computer off, unplug it, and disconnecting the modem when listening. I'd love the solution to be something that simple. Thanks again.
If I understand this correctly, your turntable is behaving much like a computer that momentarily loses power; it shuts down and does not come back up after AC power is restored until you hit the "on" switch. Thus I bet you have an intermittent open circuit somewhere on the AC input side of the power supply. Does your AC cord fit very tightly into the IEC receptacle? If not, look there first. If no problem right at the IEC receptacle, open the case and see whether there is a loose AC wire, poor or broken internal soldering to the IEC could do this. And of course do try a different AC cord, but sounds like you already have had the phenomenon occur with each of at least two power cords.
The power to the power supply has never gone out - in other words, the power supply has always remained 'ON' when the table automatically stops itself during playback - the AC has always remained intact to the unit - the power and speed lights have always remained 'ON'. The AC cords I've ensured have always been securely fitted into the IEC receptacle, and they've varied between the Shunyata Black Mamba and Venom 3, and a Nordost VIschnu. At this point, I'm turning the breaker 'OFF" that serves my computer and phone, as well as unplugging the only coaxial cable into my home serving any digital device - I don't have a TV, only a computer. I'm doing this prior to listening every time, in addition to unplugging the fridge. The fridge I know is not the issue - I have always unplugged it prior to listening. Having the power supply plugged into the Alpha 6 Shunyata line conditioner, I know is also not the issue because it's occurred whether plugged directly into the wall, or the conditioner. Now, I'm turning the breaker 'OFF' that serves any digital device I own. If it happens now, well, what can I say - I guess I can try turning 'OFF' the only other two breakers I have that feed AC into my home. I'm still keeping my fingers crossed that whatever might be causing this is happening on my end, and not the device itself. Thanks to all for any input.
Harlem- I'm not so sure that Lewm's hypothesis and your observations are inconsistent. The momentary interruption that might "confuse" the power supply might be so brief that it does not shut down the power and speed lights, but could affect any microprocessors that are present.