I've been working on a vs super mario brother's. Put a few fuses in and cleaned up caked up power supply . And it worked!!! Had lines in screen adjusted that a little fixed for the most part. But now the sound is humming awfully. Tried to pull the tiny adjustment board. The board looked good no solder traces so now I'm stumped. Someone plz help. Plus I'm bidding on a 60 in one not sure how to connect but hopefully I'll figure it out
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