Marble Madness LSI Cartidge question

shilmover

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Anyone have one of these? I have a TTL one, but I am helping someone get an LSI one working. My LSI cartridges all have either 27C256 or C512 chips on them, while my TTL one has 27C128 chips. Looking to see what numbers (on the chips) go in which slots.
 
I have both carts right now, but I am too busy to deal with it. I can take pics of the boards after CAX.

I thought I did look at both and they used the same roms just put into different spots on the pcb.

I think Atari did use larger eproms and jumpers. So that might be what your looking at.
 
I have both carts right now, but I am too busy to deal with it. I can take pics of the boards after CAX.

I thought I did look at both and they used the same roms just put into different spots on the pcb.

I think Atari did use larger eproms and jumpers. So that might be what your looking at.

after CAX is fine.
That is exactly what I am looking for.. location, number and size

Ive got the white bar edition. I have no idea which is which. If you need pics of that one let me know.

I believe that is the TTL version...
 
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