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MacRorie

Can you identify the point of this modification?

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Although, I presume it could be standard, but I do not recall seeing it before in other Mega STs I have owned.

 

The System boots fine, but I have not delved deep into it yet. I just replaced the floppy and it boots fine, hard drives work without issue (so far . . )

 

Thanks for the help!

 

Brace yourself, the picture is LARGE.

post-16779-0-50068600-1487755101_thumb.jpg

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This is the so called blitter patch. It's usually on a small board soldered to the cpu, this one was done with the chop (flip-flop) on top of another one then wired to the cpu.

Rodolphe

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