galaga/galpus help

tim6820

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I have a galaga 3 that has a few burnt chips in it, I also have a galaga board, I read somewhere that the chips were interchangable. Has anyone out there done this or know which chips are interchangable?

The cpu and ram are kinda obvious but its the eproms I am not too sure about.
 
I doubt it. If you had a Gaplus board, they probably would be, as I think they only changed the graphics on the title screen. But if it's Galaga, that would be completely different code.
 
I have a galaga 3 that has a few burnt chips in it, I also have a galaga board, I read somewhere that the chips were interchangable. Has anyone out there done this or know which chips are interchangable?

The cpu and ram are kinda obvious but its the eproms I am not too sure about.

None of the custom IC's on Gallaga 3/Gaplus are swappable with an original Galaga boardset. The CPU's are also different between the boards. Only a couple of the SRAM and the TTL logic are swappable, even the EPROMs are different size.

- James
 
if your looking to buy new eeproms, i think u can buy them from mikesarcade.com and tell him what you need programmed on them, just make shure that you match up the #'s on the eeproms to the ones you buy
 
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