We are operating in the dark here. I have no idea what your setup is now, what you are doing or how you are doing it. A schematic drawing of your connections and a description of the steps that you are doing would help get us on the same page.
We are operating in the dark here. I have no idea what your setup is now, what you are doing or how you are doing it. A schematic drawing of your connections and a description of the steps that you are doing would help get us on the same page.