Whilst you are waiting for a tech try this -
Turn off the machine.
1. Open the backbox.
2. Go to right hand side of the power driver board (largest green board) and locate connector J101.
3. Unplug it and plug it back in a couple of times.
4. Reboot the machine, hit the flippers and see it you still get resets.
Also plug the machine directly into the power outlet, don't use an extension cord or multi adaptor outlet.