Super Famicom Game PCBs, a question

[Giov3]

Hi,
I collect Japanese Super Famicom games, and I have a question concerning PCBs, and differences between american Super Nintendo Games, and japanese Super Famicom Games.
I bought some time ago, Hagane and Wild Guns, japanese version. The games are obviously legit, I opened the plastic case to verify it.
I have noticed something I never noticed before: the games are mounted in different pcbs.
The Japanese version of Wild Guns, is mounted on a 1A0N-20 board, the american on a 1A0N-30.
Hagane Jap is on a 1J0n-10 board, Hagane usa on a 1J0n-20 board.
The CIC is different to: D411A on the jap versions, D411B on the usa.
I have some problem to attach pictures, I hope to have explained well what I am saying.
I wanted to ask: I have read around the web that this is normal, and many japanese games are mounted on a different board respect the us couterparts.
Do you know if this is right, if everything is normal, and what are these games?
Thanks to everyone will solve my doubt, because I was unable to find any japanese pcb picture of hagane e wg around the net, and I am sorry for my bad english, is not my language.

[Giov3]

Update: I found surfin' around an Image of an Japanese Hagane pcb, and it mount an 1J0n-10 pcb, so, i assume that it is normal..I hope to find some picture of a japanese wild guns pcb..anyway. if everyone knows more about the subject, is welcome

[byuu]

This is common, yes. Even in the same country with the same ROM revision, the same game can have multiple PCBs.

It's mostly a cost/on-hand issue. They use whatever's cheapest and will work.

Aside from the major issue of how to treat A22 (what homebrew devs call HiROM and LoROM), the boards are mostly compatible. They just mirror data differently in areas that few commercial games ever rely on.

[Niku-Sama]

I could imagine both the PCB and support cic having different numbers based on what region they came from it just a simple revision to them

[Giov3]

I could imagine both the PCB and support cic having different numbers based on what region they came from it just a simple revision to them

Not always..for example, Demon's blazon and Demon's crest, mounts the same pcb and the same cic in both versions, the only change is (of course) the code impressed on the mask rom.But probably, this is something that changes game by game.Thanks to everyone answered my question, I think it's useful to share knowledge about these topics, in this particular moment, with a lot o fakes disguised and sold as legit.It will be useful to have a database containing as much pcb's pictures as possible (japanese and us)..maybe, when my collection will grow up again, I will share pictures of the pcb of the games I own, it would be useful for many people, I think.

[SparTonberry]

One other Capcom game that I wonder if the PCBs could be different is Mega Man X1.

From what I read, MMX1 v1.0 used a fairly standard ROM access speed copy-protection check that pirates even then were pretty used to hacking out. Then v1.1 changed it to a memory-mapping based copy-protection that I guess was harder for them to hack. But strangely enough that made 1.1 easier for emulators to support.

[JamieEvan]

This is normal. There's a nothing suspicious about slightly different revisions of general purpose parts being used in games between two different regional releases of the same game that had a localization applied to it from the original country.