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Sign me up for one set as well!

So, I replaced UA9 which now doesn't get hot anymore, but the video chips (the U*6 ones and especially UG7) do still get quite hot. I don't know how normal this is, but I don't think it is. Also I've still not been able to track down the static sound over the speaker problem. A clue to me that...

@dochillidid you end up fixing this?

Thanks techknight, I’ll add it to my list! Straying even more off topic, do you (or anyone else here) happen to know the value of C62 on the back of the board, near the floppy connector? It broke off and shattered in a million pieces when I touched up the solder on it.

Also, the sound issue went away after putting a thermal pad on UA9, but returned after I had it running with the case closed for a few minutes. I decided to test the thermal pad option because UA9 gets very hot, anyone know if that's normal?

Took off UE8, cleaned everything around there and re-soldered it and that seems to have solved this issue.

My problem came back, I had it running for maybe 10 minutes now (booted into the OS and was browsing around the folders) and then the display started to twitch and I started to smell the electric burning odor (is that ozone?). So I switched it back off, will troubleshoot again coming weekend maybe.

To add to your post @apm, mine also shows the compression on the right side (though less so).

Thanks for your reply @apm, I'll take another look at those ICs. Their contacts seemed ok, but I'll do a few more thorough measurements. I'm getting the idea this board is more corroded than it seemed visually. @techknight gave me a few ideas with his recent Mac Portable troubleshooting vid.

Am I correct in assuming that pin 1 (and pin 8 ) is not connected? In trying to locate an issue with my sound I decided to cleanup this part of the board and the pads for pin 1 and 8 came off. Looking at the LB schematics I don't see them mentioned, and looking at the datasheet for TL071B I see...

Update: it seems to be stable now. I re-soldered above connector and replaced the ceramic disc capacitors on the CRT neck board as well as re-flowed some more solder joints on there. No idea if anything I did fixed it or that it's some other factor, but I'll leave this as it is now. A new...

Just now realized I read your reply wrong @just.in.time :) But no, I don't have another logic board (well, a classic, but that's not P4 compatible right?) Anyway, I've measured the flyback connections according to the diagram on Figure 2. in the Classic Mac Tech Docs, v1.1 PDF and they're...

Thanks for the reply @just.in.time, that would be great if that's the case. I've not worked up the courage yet to try again, but when I do I'll report back here. The second A/B I tried was indeed a non "30" SE one.

Hi all, I received a dead SE/30 that I’m trying to bring back to live. When I first switched it on it started without a chime and on screen was just a vertical line. To fix the audio I did a manual cleaning and re-cap of the logic board. For the vertical line I read that it’s probably C15...