I completed a playfield swap on Medusa a few weeks back. All was working, no issues.
I recently removed/adjusted the zipper flippers, added some Mylar and re-installed. After a few games, the F1 20A fuse blew on the 2518-54 power module board. I checked to make sure I didn’t accidentally short something during the flipper fix.
I swapped the fuse and played about 20 normal games when the fuse blew again. I don’t have the schematics, unfortunately. The F1 fuse is for switch illumination (all inserts went dark after it blew). Yet the first time it blew, the zipper flipper coil wouldn’t engage. Weird.
Anyway, it seems I shorted or snagged something while the playfield was up. Can someone with a schematic or better understanding help me trace the issue?
Picture attached. The J5 connector is hacked, but I have replacement connectors and a new board on the way. I plan to overhaul when I re-stencil the cabinet in the next few weeks. Thanks!
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