"The computer looks sound enough, save for “One chip at B12 incorrectly inserted”"
Don't expect to ever have this functioning again. Ever. Someone's had a "play" with it, meaning, half the logic is blown sideways, and the other half, well, good luck with that.
I used to get (more modern) gear like that on occasion. If it looks like someone's had a play, I won't touch it. My sanity is worth more than that.
Biting the hand that feeds IT
