I have a Bobby Orr Power play that I just did a playfield swap on. The switch test tells me I have errors on the outlanes. Removed and completely separated the switches, no joy. I have another BOPP and swapped playfield, no errors, not a board problem. Obviously I have a short somewhere. What is the best way to troubleshoot this problem? The right drop bank resets with only 3 targets down, The up post won’t raise or lower. All these items are connected by the white/green wire back to the MPU. Like I mentioned, the other playfield works perfect.