> Fine, let me try to find a filter board from the net...
>
> Another, Guru, could you take some detailed pictures of (Or scan) step 2.x boards, as
> I'm studying it?
>
> And 2 more questions:
> What are those small blue parts in row, on a filter board?
> and,
> do all model-3 games need security/protection chips to boot up? The very common "Scud
> Race", for example?
Check the MAME driver for details, but Scud Race is generally not protected.
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Re: Model-3 interface board & stepping compatibility?
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