Re: Korg - Microkorg

R_J,
Thanks for the quick and detailed response! I thought we [I]did[/I] use the correct polarity power supply--the nine-volt center-negative is pretty much the only type lying around. I should be able to bring just the board in to be repaired then, without putting it back together? Can those things be replaced?Re: Korg - Microkorg

R_J,
Thanks for the quick and detailed response! I thought we [I]did[/I] use the correct polarity power supply--the nine-volt center-negative is pretty much the only type lying around. I should be

Enclosed are a couple pictures. We plugged the wrong-polarity power supply (I think) into the keyboard, instantly heard a pop, smelled electronic burn, and the keyboard is now dead. I took it apart and found the blown item. I'm not sure what it is. Can anyone identify this, and let me know if it's worth saving?
The picture of the blown link or whatever it is shows the legend "C38", and the thing is directly to the left of that. It appears to have popped open, or blown in half, like a fusible link, though I don't think that's what it is. On the opposite side of the board, directly...

Re: Behringer Eurorack UB2442FX-PRO Bad Capacitors

I wound up taking the power supply in to an electronics repair place and the guy replaced four caps only (presumably because these were the only bad ones), for $66.00. He looked at the thing and instantly said "bad caps" before I could even say anything. It's back in the mixer, and all is right again.

Re: Behringer Eurorack UB2442FX-PRO Bad Capacitors

Great--thanks for the quick replies.

Re: Behringer Eurorack UB2442FX-PRO Bad Capacitors

Yeah, I was going to do that replacement by the effects dsp as well--but do I need to replace the big 150 uf one in the power supply? A poster upstream said that that one might not be bad--it's the ones near the 3 transistors and the directly behind the low voltage supply wires.

Re: Behringer Eurorack UB2442FX-PRO Bad Capacitors

Well, thank God I did a search for Behringer--I have the exact same issues as the OP, but I have the newer Xenyx 2442 FX. The desk hasn't worked right in months; the led meter section, whenever a signal hotter than -7 db or so was introduced, would simply flash or pulse on and off, all the lights going off at once. I finally took the thing apart, and the exact same caps in the power supply are bad--though the big one looks fine. Four caps are bulging on top; there are eight in all. Should I replace them all, to be safe? I'm going...