Galaga freezing

Wolfinator

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My Galaga board has just recently started freezing up once in awhile. Other times when I fire, I can't see the missiles. Another time, it went into a super high-speed mode. Most of the time it is fine. I have a spare partly working board I can steal parts off of if need be.

Any ideas where to start?
 
Has the board been rebuilt? If it's still got the original printed resistor packs, that would be a good place to start. Similarly, the sockets on these boards are notorious for going bad. I assume you've already tried reseating everything?

-Ian
 
Clean the legs on the custom ICs. After that, it's time to start replacing sockets and resistor packs.
 
I have a PCB rebuild kit for the Galaga boardset i have never used. If you are interested send me a PM and i'll sell it to you for what i paid.
 
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