Re: Williams system 9 & system 11 compatibility

On Mar 31, 9:59 pm, EvilOompaLoompa <jukin...@xxxxxxxxxxxxx> wrote:
Hello all,

I was wondering if William's System 11 machines were backward
compatible.  Long story short, if I have a Williams Pinbot (which is a
System 11 game) and I obtained a Space Shuttle MPU and Playfield,
would they swap out?  Or better yet can the Roms swap out into the
System 11 MPU?

I know this would be the case if the two machines were the same
System, but I am not 100% sure how it works with or if there is
backward compatibility.

Thanx,

E.

Yes and no. complete description of
this is in the system11/9 repair guide at
http://www.pinrepair.com/sys11/index1.htm
.

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