Proton AM-656 integrated revolving door long shot

Hello all, I have a nice Proton integrated amp that I had a question about. It has a revolving door that I got operation by changing the belt. The only thing now is that it won’t shut off when reaching its end stop. The schematic shows limit switches and I was wondering if anyone had worked on anything like it.
Worth a try.
I think this thing went bad early, looks like new.

Thanks, Rick
 

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