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Home Forums 68kMLA Mac SE/30 to SCSI chip pinouts — #11
Post #11 by phreakout
Source Forum68kMLA
Category68k
Post DateFri, 5 Oct 2012 - 05:16
Original URLhttps://68kmla.org/bb/threads/mac-se-30-to-scsi-chip-pinouts.26313/
Post
Personally, I'm all for reliability over speed. But if you can squeeze out more MB/s of speed, more power to you.

No, what I've posted is for reference. The whole idea is that we can confirm that the chip was bad or put the blame on badly corroded pads/traces. I say, if the latter, you can save yourself the need to swap chips by simply recreating the paths affected.

Now, some of you are probably wondering how I was able to map all that out. Well, I had help. Someone, a while back posted somewhere on this forum the complete schematics of the SE/30. So that became my reference after I saved a copy for myself. It seemed difficult, but in fact, it's not that bad; there are listed descriptions of which and how many pages are linked together for each connection. But I still took the time to verify using a continuity tester and probing around on a board.

Incidentally, if interested in a copy of the schematics, send me a PM.

73s de Phreakout. :rambo:

mp.ls