Hello guys. This is my first post. I recently got these speakers for free, and right away i notices the speakers have no output sound at all, completely silent. First thing i did was a inspection of the board, which looked perfectly fine. After i plugged the original adapter i hear a small pop on the board and the blue led is on. Everything works fine, i even tested with the multimeter (im not an electronic specialist, just a regular guy trying to fix stuff). I tried everything to get a sound - but nothing. Can someone help me please, i need those speakers. Cheers!