Did you mean to attach a picture?

The blanking gets disabled by the CPU strobing the displays, so if it's not booting then blanking will stay on. Pin 4 of IC18 to be precise. If that's not strobing it can explain the blanking. I'd focus on getting your board to boot (leds turn off) first before worrying about the rest.

Have you tried a test rom? That can help narrow down the issue, but on a system 6 board with acid damage it could be a lot of things, they're a pain to track down. Luckily you've already done the bulletproofing.

I'm the one who usually burns roms for Bruce when he needs them.

scupbucket I've got all the test roms and a burner, could make you one. Are you in any of the buffalo leagues by any chance, or do you ever come out to rochester?

PMd you.

Are you sure your other chips are good?