I went ahead and bought a broken unit because I thought I would have to swap the transformer out. ? It wasn’t very expensive, but I feel kinda stupid now.
Is that what’s going on here then? In the top configuration, the middle two taps on the device side legs are also going to ground, but on the bottom the middle two taps are no connection? I believe that my current configuration looks like the top one, so does that mean I have to cut off the 2nd and 5th legs of the transformer to get it to work?

Thanks
Location: baltimore