They are powered from a wall transformer, which apparently is working because when I push the "ON" button, the light lights up, and I hear a slight click in the speakers.
But they dont play the sound coming from the computer. (Yes, they are in the correct plug on the computer). Thinking there was a problem with the computer audio, I plugged these speakers into another computer (which I know has working audio). Still no sound. I also know that normally, touching the tip of the cord (speaker input wire that goes to the computer), that a hum is heard. Now, there is no hum.
I'm assuming that there is an amplifier board inside the speakers, and it must have somehow died. I have not yet attempted to open them. It looks like there is a screw on the bottom, hidden behind the stand. Whether that will open it, is questionable.
I suppose I should just buy new speakers, but these were good sounding and quite expensive, so I'd like to see if they can be fixed. Have any of you ever repaired these things? Is there an actual amplifier board, or is it just a chip? I have my doubts about finding any replacement parts, unless it's just a capacitor or power supply diode. Or, might there be a fuse???