Three years ago... I came across a SNES 1CHIP with no sound. It had a physical hole blown through the S-MIX chip. That unit has since been given away long ago. The board in question was a SNSP-CPU-1CHIP-01. Today I have finally righted that wrong. To get sound working I bypassed S-MIX by tapping directly into the 6379A (U6). To do this I tied pin 1 (right audio) of U6 to pin 12 of the multi-AV out and pin 4 (left audio) of U6 to pin 11 of the multi-AV out. However, to my surprise, the audio seems loud and clear! Any suggestions on what circuitry should be added? An amp of some sort? Caps? Given that I've just bypassed S-MIX altogether, surely there's something about to go wrong, right? Nothing I do should ever work this easily... any advice welcomed! Also while we are talking SNES and SFC, has anyone with a 1CHIP came across this issue personally or known of someone who has? Out of the five SNES units that have been through my hands, 3 have been 1CHIP and two of them had a no sound issue that wasn't capacitor related! Curious to say the least.