Hi guys, i have a problem with my beta22 board. I connect it on sigma22 and after few seconds i see a little smoke outside the board, in fact the heatsink were very very hot. So i close the button immediatly. I controlled the circuit and i see that the trimmer is mounted in inverse mode, with initial check up I turn it "fully counter-clockwise" so I think I made a short circuit and i put a big bias current into the mosfet, is right this my thought?
Now i must change the mosfet or can be still good? how can i see if the mosfet are broke or don't function at 100%? There may be other components damaged? How can i see it?
Thanks a lot, and sorry for my poor english.