(Topic ID: 149305)

Williams CPU Swap?

By Zukboy2002

3 years ago

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  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 3 years ago by barakandl
  • No one calls this topic a favorite


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#1 3 years ago

Can i put a system 6 cpu out of a time warp into a system 3 world cup? the connectors are the same just asking before i try it and fry something else.

#2 3 years ago

6 and 6A MPUs are backwards compatible without requiring any modifications other than swapping in the appropriate ROMs.

#3 3 years ago

Top board is the sys 3 and bottom is sys 6. Can you explain which ones I would need to swap? Thanks for the help so far


#4 3 years ago

That label that says the board is experimental gives me pause.

I would carefully compare it to a production system 6 board for differences before attempting to use it. It might be a pre-production board.

As for the ROMs, they are labeled on the assembly drawing of the MPU. The six sockets in the lower left house the game ROMs and flipper ROMs. However, without labels, there's no guarantee that they are in the correct positions. To verify, you would have to read each ROM with a burner and compare them to known ROM files.


#5 3 years ago

I have done a few of the "experimental" sys 6 boards. I think they are essentially a 6A MPU that is still labeled 6. I think these came from BLACKOUT? Or whatever the game right before firepower was.

Best guess it was when they where playing around with getting rid of the data buffers.

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