Hello,

I have a Bridgeport TC22 from 1995, and have recently been having the "spindle not at speed in time" error. I’ve done some testing with an oscilloscope and found that phases A and B pictured below are working fine, however phase I doesn’t output anything, and I’m not sure why or how to rectify it. Attached is the schematic pinout and picture of the traces of A and B; any assistance would be greatly appreciated!

Thanks,
Vincent

Attachment 508316
Attachment 508318


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