Small update: So I was fiddling around with the MPU and I pressed the red test button on the MPU after I got flash #1. When I did this, I got either 5 or 6 flashes. When this happened, I had all the connectors but J1 unplugged as not to burn anything up, so I couldn't tell if it booted all the way. I then plugged everything in with the machine off. Now, when I press the red test button nothing happens. Progress is being made little by little.