Last night I went to play my HG for the first time in a couple months. The first game went fine and on the 2nd ball of my next game all of the computer controlled playfield and backbox lights quit working. I hit the self-test button once and nothing flashed like it should.
Today, I pulled up pin wiki and did a little digging. I went through some diagnostics per their guide and came up with the following results: 1.) all of the fuses are good on the rectifier board 2.) I have 5.3vdc at test point 1 on the light board 3.) I have continuity for ground on the lamp board on connector J4 pins 1,2, and 11.
At this point I'm not sure what else to look at. Anyone have any suggestions?