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And winner winner chicken dinner, it was the 2n3904 transistor on the neckboard. Now have a nice usable image (please ignore the tilt). Thanks so much for the tip, zigzagjoe

Thanks, I'll check that first. Would make sense that something on the neckboard got damaged due to the arcing.

Thanks, forgot to mention that it responds normally to brightness controls (in that the image gets brighter and darker as it should), both via the front pot, and the sub-brightness adjustment on the AB, but the retrace lines do not change.

Hi everyone, I have an SE that came to me with a destroyed tube - the end of the neck had snapped off. It spent a little time powered on and arcing spectacularly before I'd realised what was wrong with the tube. After sourcing a replacement tube, it's now looking like this: The machine...

How clean did you get the board after the recap? Cap juice is both corrosive and conductive, so any left on the board can give variable results.

I do and I can, though I'm no expert. Looks like lots of potential for melty bits, so I'll have a think about this. Real pain of a board to diagnose since it has to be fully installed in the case to run.

No worries at all - just wasn't going to do it right then as I'd only just stuffed everything back into the box and tucked it under the monitor! Have pulled the DOS sound card, and yep, no static at all. Usually happens within the first few minutes, and has been running for about 10-15 so far...

I'll give that a try tomorrow

In a similar boat with my LC630 DOS Compatible. Scratchy static noise, on and off, shortly after boot. Clears up when the DOS card is booted and the sound card is initialized. Given the lack of caps on the sound card, perhaps it's the opamps.

I just think it's great there's a modern replacement which is coincidentally an almost perfect fit. I've had this half-fixed TDK unit for ages now which would randomly just go into protection and shut down, even after a recap. Now it's a rock solid replacement that fits perfectly in the...

I found that the original adapter that AEChadwick designed didn't seem to be suitable for TDK PSUs. Or at least, I couldn't see how to make it work. I designed a new version (my first 3D printed part that I actually designed - woo!) that addresses that, attached for anyone else to use and...

Excellent timing, I need to rebuild at least one TDK power supply. Is there anything under the new power supply to protect it from shorting against the metal of the casing? It looks like it's just hanging in space based on the picture.

It likely needs a wash. I have one that I periodically does the same after a recap (went from totally dead). If it's still covered in cap goo, there's possibly a short somewhere and the ticking is the protection circuit kicking in. You might also need to test it under load. I think mine...

Super. Well, this won't be quick, but I'll update my progress as I go.

Hello all, Before I embark on a journey of self discovery, would anyone be able to comment on the feasibility of using the MacSD with an LC630? I have a plan in my head that involves designing an enclosure that effectively drops into where the CD drive would normally live, but also a simple...

475 needs a PRAM battery to work. Will just chime and black screen without one. Alternatively you can quickly turn it off and on again and 9 times out of 10 it'll boot without a PRAM battery.