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Hey,

I booted up my Asteroids cabinet today, and while it played fine, I noticed that the graphics had faint dark lines through them, like it was being drawn with discrete dots... almost like playing on a color CRT with a shadow mask or something (mostly noticeable on moving objects like the asteroids). I quickly grabbed my DMM and checked the voltage... 5.05V at the chips, so probably OK.

To me, it looks like a PCB problem, not a monitor problem - but it'll be a few days before I get time to grab the scope and dig in. This is an Owl Eye Asteroids cabinet w/ G05-801 monitor, running the Braze Asteroids Multi. It claims to pass the self-test.

My initial impression is a bad LSb of both X and Y DACs, but that seems strange that both would go out at the same time. Maybe there's a shared X/Y counter, bus, etc. upstream?

It's been quite a few years since I've worked on an Asteroids PCB, so figured I'd drop a post here and see if anyone has ideas where I should look first.

Thanks,
DogP
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