Replaced the 40 pin connector and the scanbes on my Sys6 Laser Ball, but left the RNs because they were so tight I had trouble getting the proms out even with tools. Had it out on a bench for testing (not booting right now), and noticed that the top left PROM (#3) is getting warm, which doesn't seem normal (none of the others are doing it). Checked all the pins, had 5V and 0V in the right places, signals coming in from the CPU fine, not sure what could cause that. Also, when I turn on the game, both LEDs come on, then turn off, then come on again and stay on. It's my understanding that during the normal boot process, they should just come on one when power is applied, then be shut off by the CPU, and won't do anything else unless I press the diagnostic switch. Pressing the switch seems to do nothing.