Why is it definitely not a hardware (bad socket or headphone) problem?ģ.
If you do mess with it, and you create a hardware problem by incorrectly applying meter probes or by some other method, then you will have a hardware problem and you won't have a warranty any more either. Secondly, you have a warranty and you should be taking your machine to an Apple authorized service centre if you still don't believe me, not tinkering with it yourself. Firstly, it's pointless - this is nothing to do with hardware. Hey night4cat: if you don't know how to measure impedance I strongly recommend you don't do it.
