My older Harman Kardon computer speakers have developed a loud hum, which is not affected by the volume control -- the hum is just as loud when the volume is set low as it is when the volume is turned up. Could this be a problem with the wires, or are these speakers shot?
Most probably it's an internal problem with their power supply (a capacitor with broken soldering).
It can be quite easily repaired by a person knowing which side of a soldering iron to grip ;) If you have a friend that's familiar with electronics, you can ask to take a look. If you don't, the repair shop will most probably want a flat charge, which will not be feasible.
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Thanks! I'm keen to try to solder it. (Why not try?) I removed the only 2 screws I can see, but can't get them open! Any suggestions?
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