I’ve successfully transplanted a SGB CPU into my DMG.
Everything seems to be working fine only hang up is that there is no audio coming from the speaker.
I was wondering if this might have something to do with SGB CPU lacking speaker capabilities?
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Chicago
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the SGB is identical so it has full sound support. check your solder connections, one thing i always had to redo when swapping CPUs was the link port, those pins always needed a second run with the soldering iron.
otherwise check your front board does actually work, the wires to the speaker are very bad
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Chicago
Figured it out, I had accidentally traced back the ground lead instead of the speaker switching mechanism lead.