I was playing my Firepower the other day, and suddenly my right flipper quit. Left flipper still works fine. I decided to replace the coil and the cabinet swith, since the old coil looked original and the switch looked pretty sad. Didn't fix the problem. Now the coil shows its only getting 4 volts. I did confirm that the orange/blue wire from the switch to the MPU board has continuity. I recently replaceedthe caps on the power board. What should I be looking at/for?