I think you’re looking at the result of a bad fuse clip and possible over fusing in that board’s past.

While it’s working now, you’re putting virtually all the current through only part of that fuse clip. If you want to make it better, I would suggest replacing that clip and using stitch wire through the holes for the clip. You’re wanting to split the amount of current equally to each of the prongs of the fuse clip.

It looks like there was overheating on the other clip - I would replace it at the same time. You can get the fuse clips from GPE.

Another school of thought is if it ain’t broke, don’t fix it.

I would order a new power module. I had to get one for my Xenon is was around $80.

It seems to me I thought I saw a reproduction board which had split the GI circuit into TWO 10 amp fuses instead of the one 20 amp fuse.

New Power Supply Rectifier Module Board - Bally Part AS-2518-54 This the number that I ordered. It was $80 off ebay. Gulf shore pinball is stamped on it.

Late models of the -54 rectifier from bally even did this and for sure a better implementation. One fuse for the head (and cab?) the other fuse for the PF.

The high current BC fuses for whatever reason tarnish and corrode faster than whatever metal the low current ones are. Eventually enough resistance and this can happen. Your F1 fuse holder looks rough too.

You could try and rebuild that trace some how with foil but may also need to reinforce the PCB material as inserting and pulling a fuse takes some force which might rip out an adhesive pcb foil replacement type stuff.

I have a working prototype in my black pyramid but i am in over my head right now. Too many products (already out of stock) and not enough time. Working on automating some assembly steps so I can increase supply and finish lingering products like the -54 rectifier power supply board.

My issues are with production and supply. Since I can't even keep up with people that want to buy direct there is no point in sharing profits using a distributor model. If my issue was with selling the item, then it would make sense. thanks!