IC: Laseractive Sega S1 /S10 Dual bios and Region mod

[bust3dstr8]

I'm looking into modding my S10 Pac with an internal circuit that will switch regions and Bios without any external modifications.

So....I was wondering if this is a mod the community would be interested in?

[thesteve]

im somewhat interested
i only have 1 JP pac, between 2 systems

[BlueBMW]

I've seen it done using two bios chips and a switch on the enable pin.  Are you going to do like a multibios chip?  Sounds cool though.  I dont need it since I have both pacs but I'm sure some people might want it just for the sega cd / mega cd compatibility.  It doesnt really matter for LD games.

[thesteve]

1 chip, bank switched

[xcrement5x]

Seems like a cool idea to me.  There are two layers for the region check though right?  The bios chip itself and a jumper on the board?

[thesteve]

Correct

[bartre]

that's a sweet thing, if you ask me.
i'd like to play some JP Cd games.

[BlueBMW]

I wonder if there is room to mount a switch inside the cart slot door housing.  So youd just slip your finger in, flip the switch and go.

[thesteve]

there is room, but switchless is doable too

[PunkCryborg]

i like the reset button switch, very cool

[bartre]

just slip your finger in, flip the switch and go.

That's the way you like it, isn't it?

[BlueBMW]

Bwahahahah!