Thanks for the quick reply!! I already tried cleaning with isopropyl / compressed air but didn't seem to work. Will look at cutting out the volume control. Can I do this by soldering each wire to the corresponding wire directly or would i need something in between (sorry im a novice with...

Hi, I have a PC 350 and it's been working great for a few years now but the mic has started to give out. I think it might be down to the volume control section, as if i push the volume control slider up to the max and hold it there with some pressure the mic sound comes through, but anything...