Recent content by SpocksBeer

Yep, 2 for 2. Second SE/30 chassis also had a flyback with surface corona discharge visible. Cleaned this one up too and it went away, solving the noise issue. This one was also exhibiting a full screen rhythmic rolling effect (the original issue in the first post was far more random). It...

Ruled out the logic board again by taking the SE LB and putting it in the SE/30 chassis (result: video noise), and taking the "noisy" logic board and putting it in the SE chassis (result: rock solid video output). then I looked at the flyback while it was running. Oh. Well, there's your...

Cold starting it tonight showed the issue still there, perhaps a little better, perhaps not. I have two complete SE30 units, and now that I'm looking, both are showing the problem to varying degrees. :( In both, the analogue boards are already recapped. The SE ABs seem to be better built than...

Well, OK, I'm back on-board with it being an analogue board problem. I reflowed the yoke pins again, but it made no difference. So I swapped the logic boards over again, confident that the problem would follow it, but nope the "clean" LB did the same, but worse. This time there was a lot of...

Ok, I'll spend a little more time swapping boards and reflowing things. I could have sworn I reflowed the yolk on this one already, but perhaps not. I've only got two of the mid-gen (I guess?) SE/30 LBs, so no factory bodge wire but socketed CPU, to test with. Could try my SE board too I...

Wondering if anyone has encountered this before. My SE/30 exhibits some subtle analogue video noise on cold boot, which seems to clear up shortly after its reached the desktop, or at least reduce to the point of rarely being noticeable. It's a rolling distortion that seems exacerbated by or...

Looks to be 9mm of spring, or 15mm including both hooks. I'm sure there's more technical terms for both those things. Diameter looks to be somewhere around 2.5 to 3mm You should have a crack at making your own, plenty of good guides like this one.

Chip quik

A wire back to the intact trace, then twisted into a little spiral shape where the pad should be is an option. Solder-soaked desoldering braid, if narrow enough, can also work.

Is the speaker good? Should be somewhere around 55 to 64 ohms (my working ones usually measure 58ohms).

Well, good news. I reset the spring and tried Bruce's method, but it made little difference either to the clamping force (which looked ok both ways), or to the results. Then I went back to the known good drive with the same disks and lo, same errors. I was just dealing with failing media...

Thanks, I'll give that a shot too. Just have to disassemble everything again, I got too excited. Sigh.

Spoke too soon. It reads some floppies some times, usually just as far as opening the disk and showing the files. IO errors when actually reading the files. Guess I'll look into spring making...

Win! Found the spring, figured out how to disassemble the head assembly (seek motor out, couple of extra screws, then the whole head assembly is free). There were three notches, and the spring was already in the optimal position for tension: So I carefully cut a fourth notch with a blade...

Ah, cool, I didn't notice a spring on either the working or not working drive back there. Will look closer tonight, thanks. Might be a reason to figure out how to make a new spring. :)