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AFAIK Tovar and Snax has two different BIOSes. Tovar's requires a physical switch; Snax's does not, you just hold TEST on startup. To my knowledge, Snax's BIOS is not public. See here where st3ncil says holding TEST did nothing - this seems to confirm they are not using a cart with Snax's...

No attitude or bad manners from my perspective! I think Xodara and I are just trying to point you to the resources (schematics!) on the neodev wiki which you can use to try and troubleshoot. If you get stuck after looking at them and probing around, let us know what you've done and we'll see...

Board looks original, sticker on the CPU is original. That's almost certainly a custom CPU. No battery seems to suggest it has a Darksofted BIOS (but it could also be a 2I BIOS). Repro cartridges have a STANDARD CPU and a Darksoft BIOS. When you start the system with that cartridge, do you see...

Black screen/freeze after region select usually indicates a mismatch between the image used for install, and the CPU being used. If it's a repro I can't imagine they used a custom CPU instead of standard., so you should be using the standard image. Best way to know for sure what is inside the...

I am pretty sure It's all on neodev wiki which I linked in a previous post.

Sorry, I slammed all the pics into one Imgur link because I was far too busy to do multiple uploads at the time. I have another sale post in the general Arcade section for that.

Updated sold items, added some parts AES consoles.

AES is sold, will upload pics of the carts shortly (and update OP).

And this post says that Excellentcom, a vendor based in Hong Kong, also was offering the same service. Did they have the hardware too? The poster you linked to is probably just sharing what they were told by the middleman, which was either a misunderstanding by the poster, or a misrepresentation...

If you don't like the prices, PM ME offers. I am a little flexible since I am selling due to unexpected life events (nothing bad, just unpleasant). I might add more stuff as I go. PHOTOS HERE. I have for sale the following: CPS3 Darksoft Complete PCB Setup. Max SIMMs, CD-ROM drive, Cables...

All sold. Thanks everybody.

I may be wrong, but IIRC those JST connectors were there to allow for debugging purposes on the early PCBs; you only see them on the boards with the SRAM and the backup battery under the white cap. Reprogramming most likely happens on a separate interface connected to a computer, similar to...

A person in Ontario, probably sending carts to Capcom Asia for reprogramming... my spidey sense tells me it was probably Yaton. In fact I seem to remember Yaton's Canadian era shipping from Ontario... If there's anyone enterprising enough, I suspect home ownership records in Canada may be...

I think I vaguely remember this, AFAIK it was a service tech for Capcom Asia (not JP) that was providing the service; they could only do Asia NO CD reprogramming, but interestingly I think they had the ability to change any cart to Asia NO CD. The guy I spoke to said he could only do same...

Maybe he means the heat shrink (looks like heat shrink to me)? I'm gonna guess that's just to bundle the wires together, not to "hide" anything (doesn't even look like heat was applied to shrink it).

Mods removed it from here. I think rewrite is referring to the same information posted on other forums.

You're a wizard! Thank you so much. Going to try and see if I can find an equivalent locally; if not, will just order off DigiKey I guess!

Trying to fix a busted cartridge that's missing a few components; one of them is located at Q2 on the back of the cartridge PCB. The component has "AEY" silkscreened on it; looking it up, I found a few possibilities, but there seems to be enough of a difference to my amateur eyes that I'm not...

Same. I'll get one for sure. Happy to prepay to make it happen. Not without a Darksoft BIOS, no.

The power wires terminated into either a Molex connector (I forget which) or a JST VL (?) which take far larger wire gauge. The Sega and Sanwa harnesses I had both used 16 or 18 gauge wire for the power on my harnesses, and the ones he sent me were using a single 22 gauge wire. That's why I sent...