Hi everyone. I recently got an old Williams Tri-Zone from 1979. It's a System 6 machine.

I have not yet got it running as it had severe batteri acid damage on the driver board.

But my question is regarding the required Roms on the CPU board. I actually don't have a chip in the IC14 spot, which as i understand it is the game rom. But the seller told me it was working fine some years ago, and can't tell me anything about why a rom should be missing.

So i was hoping someone could tell me if it looks like i either have all of the required IC's, or if i am indeed missing one or more?

I have attached a picture of the lower left corner of the CPU board.

received_346278150804019 (resized).jpeg

Thank you for your feedback. Yes, i did indeed pull the missing PIAs and connectors. As I mentioned the board had severe acid damage.

I will have a look at the link. Thank you.

So as i understand it, the game could very well have run with the pictured chip combination, but i should burn a new game rom for The IC14 slot?