it looks like you're using Smash TV, but for anyone else reading make sure the JAMMA harness is wired for -5V. my Total Carnage was a prototype that lacked said wiring. I had to add JAMMA pins for it. I never used a 2-in-1 switcher even though I bought one at a swap meet for that purpose. I switched it to Smash TV back in 2014 and just never ran Total Carnage again until I sold it to the place I work for now.