Mark_W's latest activity
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MMark_W replied to the thread (2) Macintosh SE/30's - Full Restoration.Btw this should be the correct position for t2 marker, to measure the end time of a complete cycle: Assume 50% duty cycle, the...
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MMark_W replied to the thread (2) Macintosh SE/30's - Full Restoration.Grabbed my friend's se30 and removed rom, here's the result: Early revision with socketed cpu and pals. A2 is also 1.3mhz. And I...
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MMark_W replied to the thread (2) Macintosh SE/30's - Full Restoration.I took another look at the repair guide: And on page 46 the scope shows square wave with 50% duty cycle, and its measurement is indeed...
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MMark_W replied to the thread (2) Macintosh SE/30's - Full Restoration.I opened my se30 again tonight as I noticed some of the smd 74hc logic ic legs are still a bit tarnished and reflowed all of them. While...
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MMark_W replied to the thread (2) Macintosh SE/30's - Full Restoration.Hello @GreenBar0n, I have an se30 motherboard behaving just like your first one. Leaked capacitors didn't cause any damage but it was...
