Quoted from docquest:I had similar ball locating issues with mine. The trough opto board was flaky. It worked great when I first got it than it intermittently seemed to think a ball was missing. I discovered that as I gently poked at the receiving opto board with my finger while in diagnostics the display would toggle between detecting and not detecting the ball. I removed the board and re-flowed the solder around the connector and LED and it seems to be okay for now.
THanks for the ideas for the opto board. I went in and if memory serves me correctly the molex connector didn't come loose, but it appears to have unseated 1/8". Certainly not enough to lose connection you wouldn't think, but who knows. I hate any connnector where you slide/pull the wire between the metal to gain connection. I tweaked/yanked/pulled the wires into that connector and tried to seat that molex very firmly, been good since. At this point I'm working on the premise it was a connection issue. I may go in there if it happens again, and actually strip the wires prior to seating them in the molex and reflow the solder at that point. Solder looks good though. I've done a ton of soldering rebuilding arcade monitors, power supplies, opto boards in the past.
thanks once again for the insight guys, it definitely helps.
I'm a little mad my 93,000,000 point score got deleted with teh update, lol.
After what seemed like 50-10,000,000 point games on the new update, I finally got my na me on the board with 40million.