Hello all,

I have removed the ROM and socket from the logic board. None of the traces look obviously eaten so I started to test continuity between where the ROM would be and vias.

All of these points test good for continuity apart from one. It is the fifth pin on the right side of the ROM if the ROM was closest to you.

I'll track down its corresponding via and solder a wire to where the fifth pin would be. Hopefully this will provide a solution.

Uniserver, thanks for the video link. It was quite informative!