Hey, I got a new RR WOZ built 12/1/2016 and the first twenty or so games on it were fine. Now I'm having weird issues where the flippers will randomly go dead for a few seconds. This will happen maybe one to even three times per game if it's a long game. Usually when the flippers stop working the video screen will show something like the RESCUE animation or the emerald city locks, even though no balls were in those areas to trigger them. I did a visual scan of these switches, checked them in the test mode, and nothing seems wrong. However obviously something major is wrong because this is making the game unplayable. Sometimes this occurs during multi ball and sometimes during single ball.

I tried googling to see if I could find others with a similar issue but couldn't find anything exactly like this. Probably won't be able to do heavy testing and debugging for a week but was hoping I might get some ideas from this thread. Thanks for any help!

Okay so I'm noticing that before the flippers will die all the lights go off too. It's like something momentarily shorts out then resets.

I spent some time checking and re-seating the opto connectors that might be involved. I then noticed when checking the switch matrix that the two Witch switches would get stuck. I tinkered with it a bit and then was able to play several games with no issues. On maybe the 5th game the flippers stopped working and the game started multiball even though i hadn't locked more than one ball. Went to check switches and both Witch switches were stuck on again. Could this be what's causing the problems? Will have to do some tinkering to get her switches setup properly.

I'll open a ticket with JJP if I can't get it figured out but I've found most of the times some Pinsiders or LTG can help with a quick comment or two.

Thanks for the quick reply LTG ! I had messed with those nuts when I first detected the problem but they can't be pushed back because the LED board is in the way. Probably have to make a notch in the LED board like I saw the other guy do.

Don't have time to mess with it more this week but looking forward to the debugging adventure that awaits

Thanks for the tip, will get a chance this weekend to investigate further.

It turns out the crystal ball connector for the video display was vibrating and getting loose and causing the resets. Thanks to JJP support for being very helpful in debugging this!