We have had recurrent phasing problems on our setup. We have a Z-1000 which is out of phase with our Z-4000. We solved that problem by switching the prongs of the Z-1000's plug.
Now, I want to use the 14v accessory tap of the Z-1000 for accessory power, and I think I have a problem. When I test for phasing and put a multitester on the center pin from the Z-1000 track power and the hot screw of the 14 volt accessory output, I get a reading of 14 volts. When I test the center pin of the z-4000 track power and the common of the Z-1000 accessory screw, I get 0 volts.
Based on the recommendations for checking phasing, that is the opposite of what I would expect. Is my logic wrong, is my transformer out of phase with itself, or did I miss a step?
I didn't tie the grounds together, as they are coming from the same Z-1000.
Thanks in advance.