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  1. #1

    Member Since
    Jul 05, 2007
    No Sound & A Red Light
    hello fellow mac-users,
    i'm hoping someone can help me out here. i am unable to hear anything through the internal speakers of my powerbook G4, unless i have earphones or external speakers plugged in. since the moment i became aware of this problem, i also noticed that there is now a red light shining from within the headphones jack.
    has anyone else had this problem or have any insight as to what this may be and how i may resolve the issue?
    my machine is applecare protected...
    thanks all!

  2. #2

    Oneironaut's Avatar
    Member Since
    Feb 23, 2009
    21" iMac * 2.8 Ghz Intel Core i7 * 16GB 1333 Mhz DDR3 * 1TB HD *AMD Radeon HD 6770M 512 MB
    This might sound obvious, but did you try the volume control buttons on your F keys?

  3. #3

    walkerj's Avatar
    Member Since
    Feb 13, 2005
    New Orleans, LA, USA
    13" Macbook Pro 2.26Ghz Unibody 4G RAM 160G HDD Superdrive
    Hate to be bearer of bad news, but you're either going to need a new logic board or just live with it because the microswitch in the jack is stuck on 'external'. I had this happen to my old Macbook and sure enough it needed a logic board. $1250 which was fortunately covered by Apple Care.

    There is a trick you can try though, if you can get something in there tiny to flip the switch you might be able to fix it. Or rapidly plug-in unplug a jack might free the switch. If not, oh well.

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