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I have one annoying quirk left in my reborn SE/30: It seems the anode cap prongs don't always hold a perfect connection inside the hole in the CRT. Subtle bumps or the usual thermal expansion/contraction are sometimes enough to upset the connection, introducing a sort of visual noise where the...

I've had to put a desoldering gun over bent legs and then unbend or jiggle them with heat before, but this risks lots of cosmetic damage to the solder mask and holes, so it's absolutely not what I'd recommend. I only do it on scrap boards or as a final resort, in the opposite situations where...

Looks like your auto-eject gear blew up within mere days of mine doing the same. Always with that funky green spot, too... It sure was thoughtful of those plastics to hold off on breaking down until 3D printing became widespread.

Good call on the FPU, that was right where my eyes went... After staring at the off-axis resistor pack with its legs eaten off. I'm a relative newcomer to this level of rework, but the Reloaded board is surprisingly manageable in terms of complexity, so for you it should be a piece of cake...

I've got one where I can fully boot, but not long after, I get a bad F-line instruction bomb dialog. It's similarly washed and recapped. I use an accelerator anyway, but it would feel lousy if I ever had to resell or trade my IIci and couldn't include a working 32k cache to make it authentic for...

Judging from the dark stains under the caps and the green corrosion on some of the ICs, that logic board's going to need a thorough bath to neutralize it, not just a brief wiping down. Hopefully you've also got some way to drive out any lingering electrolyte from under the affected chips, unless...

The flux itself should not be acidic. I've caused cosmetic damage to masks even on careful jobs, usually from the abrasion and heat of copper braid while undoing a mistake, or from an iron's tip momentarily scuffing a dry area of the PCB during dragging. I would not think that typical...

I was poking at 7.1.1 Pro out of curiosity, since one of my disk images had it for some reason. (I'm already sold on 7.1 with the System Update and everything, very aware of Pro's reputation and status.) However, I noticed that the startup time is abysmal, even on zero-wait Mac II-family...

Personally, I had to do my zero-track position with trial and error, and repeatedly plug the drive into a IIsi for testing. I did not have any kind of special equipment, so it was extremely tedious. The Larry Pina "Macintosh Upgrade & Secrets SE" book claims that being unable to fully initialize...

Is the zero-track position on drive 1 properly aligned? Not exactly a trivial question, but I only ask because it was the issue for 3 in every 4 auto-injecting drives I've cleaned, and seems to be a common problem.

The discharge with the alligator clip and flathead is pretty safe and straightforward, if you don't trust the bleed resistor. You don't have to put your actual hand anywhere near the conductor, just the screwdriver and alligator clip sending current straight into the ground lug, assuming it's...

This thread's turning into more of a build log, with the only fault removed. Finished putting the rest of the components on and cleaning residue. Not going to install the buttons despite having them, since they're salvaged and have some kind of dried up glue on them, and I don't have the right...

I thought this was what was happening to me, but it was a red herring. I actually had a data line short to Vcc, which was holding up the whole bus since that bit was stuck high. Even on working machines, I am not able to see ROMN going low on my scope. Are you using one of the auto settings to...

This is all a bit surreal. I still need to pop a SCSI header and an ADB port in here to check it out a bit further, but I am very pleased at how much sense this made, in the middle of a seemingly impossible puzzle. I did reason pretty quickly that the bus walk and lack of data transfer meant...

I'd agree with this, unless you have a personal preference or special use case for the PLCC sockets, or another machine/SIMM adapter to test them in and rule them out. I'd also tried building mine with the sockets, but realized that since there's a proper coin cell clip for a less volatile...

At the time of writing, the "Simasima" PDF guide I was using to troubleshoot lists incorrect address bus frequencies. I also did not realize that the processor eventually stopped walking the bus (I think) after enough time has passed, hence why I was not seeing anything on the address lines when...