hackbar
Active member
I'm getting the usual WPC reset when both flippers are hit. I've gone through the usual diagnostic steps, and all the connections look good. The + terminal on the bridge rectifier showed 8.8V DC and about 120 mV AC.
However, the 5V test point TP2 shows only 4.8V. This seems like a problem. Is this a symptom of a bad regulator, or something else?
Another thing to note is this machine is on a very low voltage AC circuit. I get a reading of 107V. I've adjusted the butterfly molex connector to put it on 103.5V though, so I don't think that's a problem.
However, the 5V test point TP2 shows only 4.8V. This seems like a problem. Is this a symptom of a bad regulator, or something else?
Another thing to note is this machine is on a very low voltage AC circuit. I get a reading of 107V. I've adjusted the butterfly molex connector to put it on 103.5V though, so I don't think that's a problem.

