I have a working Squawk & Talk in my Fathom. I picked up a spare Squawk & Talk that has original ROM’s from SPECTRUM. It does get 5 flashes on the LED on the bench, but I want to confirm the board works completely, so looking to swap game ROMs and try the spare board in FATHOM.
My FATHOM has no chip in U12. SPECTRUM board does have a chip at U12.
I will correct the jumpers for the game ROMs. What about U12? Should I remove it if I install the board in FATHOM, or does it matter?
Also curious, what would or wouldn’t work if the board was installed in SPECTRUM without the U12?