Skip navigation

Internal mic stopped working on my 27/2010

103 Views 1 Reply Latest reply: Dec 3, 2012 5:35 PM by den.thed RSS
MyMacBytes Calculating status...
Currently Being Moderated
Dec 3, 2012 4:28 PM

Probably asked a lot ...But none very technical.


Need far more reasoning before I open my machine.


For some reason, the internal microphone has stopped working on Snow Leopard. I iChat mainly, and has been flawless up till now.

Reset PRAM, SMC blah blah.


The line input works ok (mic in) in syspref using headphones as a mic (heads are a basic mic, so no need for you to have a microphone).


This maybe specific to hardware, possibly the actual mic socket? A loose cable or line connector, rare, I think. Has anyone come across this?



iMac (27-inch Mid 2010), Mac OS X (10.6.8), 2T/8Gb - MBP17/500G/4Gb
  • den.thed Level 7 Level 7 (23,325 points)
    Currently Being Moderated
    Dec 3, 2012 5:35 PM (in response to MyMacBytes)

    There is a micro switch inside both the Audio Input and Output jacks that sometimes gets stuck. The switch is used to switch from Internal Input to External Input and if indeed is stuck, then you will not get any input from the Internal Mic. Once in awhile it can be unstuck by plugging in a mini jack plug, jiggling, twisting and unplugging. If not then the iMac will need to be taken in for service.


    Also note that, the Audio Input Port is for amplified (Line Level) devices such as iPods, Stereo Receivers, etc. and it will not pickup the weak signal from an un-amplified microphone. 

    iMac, Mac Mini, iPad, iPods, Mac OS X (10.6.8), (10.8.2), Safari, iTunes, iPhoto


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.