Bang & Olufsen Beovision 1: X2 Safety Cap Magic Smoke

So today I went to pick something up for my CRT collection. I'm very pleased with this one. Any tips or tricks @consoledated? #CRT #retrogaming

Here's a short video of it in action.

And another one of it performing its party trick.

That was interesting.............. My B&O Beovision 1 made a fizzing noise and then smoke started to come out but the TV was still working, still displaying a picture and still playing audio. WTF!!! 😱😨

Even with the window open for a while the smell is lingering. I got a notification on my phone from the purifier in the bedroom. Moved it to the living room and set it on full blast.

Does anyone know where the hell this piece of paper is supposed to be glued to? It just fell off when I took the cover off of my Bang & Olufsen Beovision 1. #CRT

What the hell!? Why is there so much stuff disconnected in here? Is this normal?

Ah, so that's where that paper belongs...

That was a dirty boy...

On a totally unnecessary detour... I just recapped the neck board, cleaned it and reflowed some solder joints. So that checks one maintenance item off the list.

Since I'm pretty much coming up empty. I took another unnecessary detour and reflowed the SCART ports.

And another one to clean oxidation from the CRT pins and apply DeoxIT.

I'm at a loss here. I found nothing that I could say justified what I saw. I tested a bunch of caps with ESR meter. I looked everywhere with a flash light. I thought C25 might have gone, it was the only film cap that didn't come up as OL on the multimeter. Took it out and got OL.

I took some diode readings, found nothing suspicious. Even tried the HOT which wouldn't make sense because picture was still working. It was fine. So, I closed it for the day because I can't have this opened up with my little one home.

Just out of morbid curiosity, I powered it up and...

If anything, it looks even better now, since I disabled Velocity Scan Modulation by disconnecting that plug (yellow) from the neck board.

I don't see any charring anywhere or any liquid from a vented cap, or any black lines from any arcing that could have struck something on the PCB. I didn't see anything cracked or pierced. 🤷‍♂️

I wonder if some bit of 1 of the balloons that we put up for my kids birthday, that have been exploding over time, made its way in through the slits at the top and got zapped. Or maybe I'm just missing something and if I continue to use it, overtime the stress will cause failure.

There we go, thanks @TheRetroHQ for nudging me on this. Found the culprit, the X2 cap. Hard to see without removing the board, which I didn't because of all the connectors and the anode but I thought I'd seen a sliver of metal on the side I could see. What a nuclear disaster! 🤣

Armageddon cleanup. That left a lot crap around and under the cap's footprint.

The end of the saga. Came away with a cleaner TV, some solder joints refreshed, some maintenance items checked off the list and a new safety cap. Ended up going with the KEMET instead of the Wima, for ease of placement. Both are over spec. Time for some Eliminate Down.