Recent content by Misos

"Salva Chips" or "Solda de Baixa Fusão". Same thing as Chip Quik.

There's a replacement by Mourix: https://github.com/mourix/CRE401

Well, I'm no expert by any means but I've seen it being made in two ways in bootlegs: a bunch of TTL or an altera max CPLD. They used EPM7128SQC100, epm7128ati100, Epm7128elc84.

Would be nice to design the PCB in a way to use a CPLD instead of the original chip, I have a bunch of PROG boards with good eproms but bad PCMS.

Hi, it seems you are not using v3 carts anymore to make those. Would you mind sharing how you managed to program the P-roms since the version you have uses a single F0095HO instead of 3 MSP55LV100S Fujitsu chips?

I've never owned one of those before, but I guess the wires were once attached to some sort of switch, and you were supposed to press it so you could change games or call a menu to choose a different game, I'm not sure. Be careful with those types of bootlegs because the PCB is thicker than a...

That's just a kof 2002 multicart it has nothing to do with Samurai Shodown 2.

Do you still have the gerbers? The link is dead.

Yeah, seems to be a clone of the original. At least you can cannibalize it if you have a v3 and need an extra chip for the fullset.

So, are those carts being sold right now still using the same board that the v3 used? Can they be used to make a vortex cart? https://aliexpress.com/item/1005004225829143.html

Probably someone replaced the cart slot with a third party one. Original cart slots don't do this, either on MVS or AES.

If you get a black screen or checkboard it means something is wrong with the p-rom. Metal Slug X in particular has an Altera Chip that has to be functional too in order to the game to boot. You can always transplant the chips to a new board, and use a decrypt p-rom...

The Unibios skip calendar errors. Side effect is that you can't save any game settings you change. Try the backup ram tests in the diag bios.

There's corrosion on the far right and left pins, use a fiberglass pen or a very fine sandpaper and see if gets any better.

Are all the SMD capacitors in the PCB 100nf? I remember it being mentioned here that it's better to replace them with better ones.