Author Topic: Williams Flash Restoration  (Read 11588 times)

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Offline johnwartjr

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Re: Williams Flash Restoration
« Reply #45 on: September 03, 2012, 12:47:15 PM »
Curious how the CPU works with the RAM chip at IC13 missing? Is there some sort of Sys 6 mod I'm not aware of?

I have 2 waiting for me on the bench, so I'm curious.

You use a 6802 processor , remove  jumper J1 and install a 4.7K resistor at R4.
This enables the 6802's internal ram and you don't need the 6810 at ic13 anymore.

Good info, thanks :) I will remember this!