OK, I borrowed a voltage tester. If it can do the job I won't have to buy any electrical testing equipment. Attached is a photo of it. I have no idea how to use it. I'd like to test the SM cord and the cord of the foot controller.
Does anyone know if this device can be used for this? And can you fill me in on how to do this? I'm more comfortable with mechanical stuff and I'm clueless about electrical stuff. Thanks for the tips!