All I get on the screen is a flashing image that looks sorta like the ship. The voltage at the board is reading 5.27 volts, which I assume to be okay. I replaced the big blue and capped the AR and reseated all socketed chips. Help?
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5.27 volts
It was C86 and C87. I was testing voltages and accidentally connected the negative lead of 86 to the positive lead of 87.
Update: I swapped the roms with a known good set and tested the sockets by testing continuity between each leg on each socketed chip to the pad on the other side of the board. I'm still getting the same issue. I found this website: https://sites.google.com/site/asteroidsrepairlog/
On there, I found one detailing my problem and it says that the 74LS244 chip at B2 was the fix in that situation, so I think I'm gonna try that. Any input?