No headphone sound, just static noise and alarm sound
Hi guys, I have an issue with my 2012 iMac
I'm running 10.8.5 OSx.
My headphone jack started acting really weird.
When I plug in my headphones in headphone jack I can hear static noise, as soon as I attempted to play anything: iTunes, Youtube or whatever, I can hear really loud alarm sound.
Any ideas?
FYI, built-in speakers are work just fine.
I ran Hardware test (no issues were found)
PRMA didn't help
iMac (21.5-inch, Late 2012), iOS 8, null