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Working on a Joust ROM board. SG roms.

Mainboard is known good (also have spare known good ROM board).

I made a new ribbon cable (and verified it ohm's out) and all the ROMS now pass signature check using Fluke.

It was still failing to boot, nothing on the LED error display. Some debugging indicated bad sockets on the customs (which test good in the other ROM board).

Replaced the 2 sockets on the customs. Now it boots into a 2-0-1 error which repeats twice before it displays 0 and the board boots. Only the text is totally garbage.

The good ROM board boots to the white "all systems good" message but this bad board displays two lines of red text I can't read before the board boots. It's running attract mode and the Joust logo renders perfectly but all the text is garbage.

At this point I can break out of RUN UUT and re-test ROM 01 it passes fine.

I'll update as I debug more .....
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