Looking for suggestions for next steps. Game starts fine but at ball zero (before ball 1 is served) Playfield already has power. Flippers work and some scoring works. However, if a relay comes into play it only buzzes. Checked with a DMM and it gets only a fraction of voltage it normally gets. Once ball 1 is launched scoring is normal until end of game. After ball 5 drains normal game over comes up (XB triggers) but balls continue to be served. Scoring goes back to the way it was at ball zero. It appears Playfield somehow gets limited power from an unknown source. I’ve looked at all switches and am running out of ideas. Has anyone had this issue in the past?