I just made my first attempt at recapping and it's not gone well.
I bought this SE/30 in November 2020 and it was in good working order except that the sound was very faint, a sign that the capacitors were failing. I hadn't used it much since then because I kept putting off recapping it. Fast forward to last months, I turned it on because I had an itch to do something with it. It booted up, but there were black vertical lines every 8 pixels across the screen.

I knew it was time to bite the bullet so I bought a cap kit from Console5 and set to work.
When I removed the logic board, one of the capacitors fell right off and there was nasty crud on the board where it was. I somehow managed to remove the rest of the caps without lifting any pads, and there was crud under a few others, C3 being the worst. I cleaned them off as best I could and soldered the new caps on.


I checked all my work as closely as I could and did not see any glaring faults, so I plugged everything back in and turned it on. The result was unpleasant: The speaker was crackling with no apparent startup chime, and I only had a bright horizontal line across the screen.

The line flickered off or got brighter if I moved the machine. Curiously the line seemed to have the same gap every 8 pixels that the display did before, so I didn't even fix that problem.
I got suggestions on the Discord to try reflowing the analog board solder joints next. Any other suggestions for how I should go about to diagnosing and fixing my issues?
I bought this SE/30 in November 2020 and it was in good working order except that the sound was very faint, a sign that the capacitors were failing. I hadn't used it much since then because I kept putting off recapping it. Fast forward to last months, I turned it on because I had an itch to do something with it. It booted up, but there were black vertical lines every 8 pixels across the screen.

I knew it was time to bite the bullet so I bought a cap kit from Console5 and set to work.
When I removed the logic board, one of the capacitors fell right off and there was nasty crud on the board where it was. I somehow managed to remove the rest of the caps without lifting any pads, and there was crud under a few others, C3 being the worst. I cleaned them off as best I could and soldered the new caps on.


I checked all my work as closely as I could and did not see any glaring faults, so I plugged everything back in and turned it on. The result was unpleasant: The speaker was crackling with no apparent startup chime, and I only had a bright horizontal line across the screen.

The line flickered off or got brighter if I moved the machine. Curiously the line seemed to have the same gap every 8 pixels that the display did before, so I didn't even fix that problem.
I got suggestions on the Discord to try reflowing the analog board solder joints next. Any other suggestions for how I should go about to diagnosing and fixing my issues?