This may be helpful to those still running the older boards with the little board piggy backed onto the LED boards. The other day I found a dead short on one of my smaller LED boards. What I found was the header pins for the jack on the little board which piggy backs onto the LED board dead shorting to the bracket which mounts the LED. The header pins were so long they had broken through the sticky adhesive material they use to secure the little piggy back boards to the LED board. Dead short to the bracket. Came out of nowhere while I was working on something else. I had lowered the playfield, fired up the game and most of my lights were freaking out. It took me a while to find it but good thing it did not take out any boards. I wasn't even working anywhere near this LED. I have a few others that have these boards attached that I need to check.

I am not sure when I will get back to it but when it do I will see if I can get a picture. Its the header pins for the jack that your cables get plugged into. These pins can short to the mounting bracket.

Sorry it took so long to get a picture. These header pins have been trimmed and soldered already but this is the area I am talking about. These header pins in some cases (depending on mounting orientation) can be long enough to break through the LED board mounting compound and make contact with the mounting bracket.

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