Prg and chr chips interchangable for nes and famicom?

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Mrkunio
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Joined: Sat Mar 10, 2018 10:18 pm

Prg and chr chips interchangable for nes and famicom?

Post by Mrkunio » Tue Apr 03, 2018 10:01 am

I have an nes copy of faxanadu and a famicom copy of faxanadu. Can i swap the internal chips to make the famicom version english?

Are the mmc3a and b pcbs compatable for a swap? Anyone ever done this?

Both games are pretty cheap and common, just wanting to know if this can be done or not.

Thanks!

lidnariq
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Re: Prg and chr chips interchangable for nes and famicom?

Post by lidnariq » Tue Apr 03, 2018 11:53 am

I'm pretty certain that should work.

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rainwarrior
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Re: Prg and chr chips interchangable for nes and famicom?

Post by rainwarrior » Tue Apr 03, 2018 12:04 pm

Faxanadu is CHR-RAM so you don't even need to swap the CHR part, only PRG.

You could use a regular EPROM though with a little bit of rewiring, instead of taking the mask ROM from another cartridge.

Mrkunio
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Re: Prg and chr chips interchangable for nes and famicom?

Post by Mrkunio » Tue Apr 03, 2018 4:46 pm

rainwarrior wrote:Faxanadu is CHR-RAM so you don't even need to swap the CHR part, only PRG.

You could use a regular EPROM though with a little bit of rewiring, instead of taking the mask ROM from another cartridge.
Thanks! Im not setup with any eprom prog stuff yet so i was gonna give this method a shot! I can always swap it back when i get everything

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