I know there are a number of threads for the PowerPro RPS where errors are discussed, and that some folks think it is a Shopsmith engineering issue they can resolve internally.
If it were a Mark V A.O. Smith centrifugal motor start switch I would ask if they still thought it to be a Shopsmith engineering issue they can resolve internally.
The answer is obvious for the A.O. Smith example: the motor was made by A.O. Smith external to Shopsmith.
The answer may not appear as obvious for the PowerPro DVR motor example using DVR Motor made by a company Teknatool International Limited in Auckland, New Zealand even though they have a Teknatool USA Inc. in St. Petersburg, FL.
The NOVA DVR Galaxi 1644, DVR 2024 and DVR Voyager all use the same technology as the Shopsmith PowerPro DVR Mark 7 although the frame end-bells vary in design.Yes it is the same Nova that makes the Nova Chucks that fit Shopsmith and other lathes, including their own.You guessed it, the NOVA lathes are also from time to time experiencing the same problems with RPS Errors of their own, just like Shopsmith.Teknatool DOES NOT SUPPORT SHOPSMITH DIRECTLY - Don’t bother trying to get them to answer Shopsmith Questions, however, very much of what they write in support of the various NOVA Lathes that exhibit EXACTLY the same errors, and there is relevancy in knowing what they say.The end bells and other housing variances exist, but they are similar, and have the same functions. Disassemble at your own Shopsmith Warranty Peril. If Shopsmith tells you to…. You are ok. If you are out of warranty, you are ok.
Teknatool is pretty specific with some of their support bulletins. Here is what they say:
RPS0 means the connection is open from the 5 pin ribbon cable on the board to the sensor board.
The cable is usually zip tied to the sensor board so that connection is not like a problem, just the one on the board.
RPS1 means something obstructing the optics (dusty).
RPS State Error relates directly to the sensor.
The "Low Voltage" error is typically caused by very simple problems, e.g. loose wire connection.
How to fix clicking noise and “Low Voltage” message – see PDF for relevancy; Two methods – one will eliminate the “Low Voltage” allowing it to run; the second eliminates both issues (Again NOVA)
You can find a number of the Teknatool service PDF’s in My Google Drive under the Future PowerPro folder in a Nova Teknatool sub folder. viewtopic.php?p=185690&sid=07c634e86df83c89dfecdb435ec3fe00#p185690
Once I find, or we create Shopsmith photos that are illustrative of the same areas inside, we can create some documentation to go in the PowerPro side.
I am going to Dayton for a week in May and meeting with folks on a completely unrelated project but I will see what I can find out when I am there.Again, these are not Shopsmith documents, but when you look at the nature of the errors they also are throwing, the causal issues are essentially identical.