@amesie2:
sorry you (and the 2 A4000's and the Apollo) had to go through all this so we all learn :-(
But to tell you the truth, I was _almost_ a victim of the same. I was testing PC floppy drives with cable hacks to see if they worked on Amiga, and I was using a PC power supply. I forget what happened next, except this: I ended up plugging my High Density (!!!) Chinon (for testing?) to an Amiga power supply, with the blue/orange cables. I think I mistook the orange for yellow (or red), and aligned it as I did with the PC power supply. Turn it on, and I immediately smell something. Flick! Power off. Then I noticed a small plume of smoke coming from an SMD cap or resistor, I forget. Luckily no pop for me. Plug it in the other way. Turn it on again and hold me breath. A few seconds later I hear the grinding!! BIG EXHALATION!! The drive was OK! Damn Chinons are made of ROCK! I almost fried that sucker...
Good recuperations amesie2
Oh, I forgot: I suggest you do what X-Ray said. Tell Belkin you sent it in for repairs and get a receipt or something from the French fellow (I've heard only good things about him). If you tell'em it's an Amiga, I really don't think you'll get a break. There are no "good companies" anymore.