I suspect there's a problem with the microphone cable.
I just noticed today -while on a Skype call- some static sound registering while using the build-in microphone of my MacBook. I installed LineIn (in order to have some microphone pass-through) and found out that while tilting the display, the static was becoming worse or disappearing altogether on certain angles. Hence, I am suspecting damage at the microphone cable.
Is there any way of fixing this issue, without taking the whole computer apart?
Also, the static seems digital in texture; is there a chance it's not the cable, but something else? Mind you, did all software/firmware tricks I could think of.
I could also attach a recording of the issue.