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Unfortunately I haven't. Still on my workbench and I come back to it every so often. I sort of resorted to toning out traces in sections and touched up a few areas while crossing my fingers. I plan to get my hands on a scope and pick this project back up soon though. Curious as to what you may...

Yeah, I figured if I can't get it working, a reloaded board would probably be in my future. I was optimistic about resurrecting this one because the board doesn't look bad at all. Certainly looks can be deceiving though. I guess before I go that route, I'd like to rule out any bad chips, because...

Hi All, Trying to coax a IIcx back to life and figured I'm come to the group if anyone has any suggestion. For some background, this machine had an extreme case of leaky capacitors with corrosion mainly focused in the area of the startup circuit. After an initial recap of the entire board, the...

Hi All, Update time again. So since the last post, I went through everything to make absolutely sure that each component in the suspect areas were making the proper connections. After the latest round, the 26LS chips were good; surrounding chips like sound chip, also good. For sanity, I checked...

Will do. Initially I only checked 26LS30 since I was going off the bomarc schematic and suspected the SCC chip. That one at least checked out ok and reading proper voltage as well. Without a scope my testing is somewhat limited. If there was a suspect component that didn't quite pass the eye...

@Kai Robinson, Welp, it's not the SCC chip. Every single connection matched. While I'm here, might as well go and test the others. I suppose it could be anything at this point...

Awesome, thanks @Kai Robinson, I'll check it out and report back with my findings.

sorry, meant to add the other two. Pins 19 (DCDA) and 21 (DCDB) are also in the same area

Thanks @Kai Robinson, I have verified the connections from the the SCC chip, except for the pins 14/18 (CTSA), 22/26 (CTSB), 13 (RxDA), and 27 (RxDB). These pins appear to go to the area in the schematics from my first post that I don't quite understand. I even swapped in a new filter at U4B...

On the test bench I use a bluescsi with a generic 7.1 install, and I've stuck a system 6.0.8 disk in the drive, but I don't even get to the point of seeking a boot device. For what its worth, the bluescsi does receive power and I do hear the floppy drive initial power up.

Hi All. Figure I'd provide a bit of an update in case there's anyone following along still. After doing a bit more research, I'm now to believe that the error message previously stated was actually normal behavior when pressing the interrupt button. I then turned to trying to trace back...

Hello fellow tinkerers! Resurrecting a battery bombed SE, a tale as old as time. What I thought might be straight forward turned out, as often is the case, was't. That's why I’m coming to the experts :) To make a long story somewhat short, I have an SE that suffered some battery damage, and...