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Karaoke PSU blown

Posted: Fri May 09, 2025 6:08 pm
by Tyxy
Hi everyone! So yesterday I got my Dreamcast Karaoke (SegaKara), and as you can imagine, i was pretty excited. As I live in Europe, I had to get a converter from 220V to 100V, which is what the SegaKara uses.

Well, today I plugged the power on the SegaKara, only to realise (too late) that I connected the 220V regular cable... And the SegaKara exploded.

After opening it up, I can see that what looks like a capacitor (see image) has blown, and got everything messy with some kind of liquid. And judging by the photo that retrostuff.com uploaded some time ago (see image), I can safely confirm that (at least) the capacitor has exploded. As for the rest of the board, it looks fine, nothing is burnt and nothing seems to have broken, so maybe the capacitor took one for the team? Idk.

The thing is: does anybody know about this? Can it be saved? My plan is to just change the capacitor for another one with the same specs and pray.

Re: Karaoke PSU blown

Posted: Sat May 10, 2025 5:24 am
by xzer0PL
You can measure the other parts with multimeter. Check diodes, stabilisers and other. Do you see picture? It says 200V. You can replace it with same value 47uF but use 400V.