Motor Controller 29

As I continue to learn VEX and try to expand my ability to help my students troubleshoot issues I’m now wondering about Motor Controllers. Do they do anything besides bring power and the signal from the 3 pin cortex and convert it 2 pin to go to the 393 motor? What would be some of the symptoms a motor controller has failed? Why / how does one fail? Thanks

I asked the same question last July in a slightly different manner. And guess who answered it? @jpearman We need to make a best of post collection from him…

Which referred back to this one.