https://youtu.be/Em98GoLLHeI
Got this from a thrift store, sound seems totally fine on Super Mario World and Donkey Kong Country (for the most part) certain parts of the songs in Donkey Kong Country sound messed up. Super confused by this, any ideas?
Also I put in an RGB bypass mod, but because I only played Super Mario World which sounded fine before *and* now, I didnt notice the audio issue. Heres some pics of the mod and a third pic of the only questionable spot on the board with some sort of oxidation: http://imgur.com/a/Ol7vu