We have a Viridian on our floor that was powered off by a floor attendant, we were told it had a cashbox tilt. When it was powered back on, nothing came back on. The player tracking that is plugged into the power supply still has power. Power supply was swapped out with a known working power supply, did not correct problem. Removed all peripheral devices from the back plane, still no power. Tried carrier board in another game, it works. tried another carrier board/CPU in problem game, it would not work. Tried different backplane in problem game, still no good. Power harness continuity check is good for P/S harness from back plane to P/S. Any one experience a problem like this, or if any of you can think of anything else to check, I'm sure there is something we are overlooking... thanks in advance!