Is My Sound Card Fried ?

Discussion in 'MacBook Pro' started by Geoff J, Apr 4, 2007.

  1. Geoff J macrumors newbie

    Joined:
    Apr 4, 2007
    #1
    PowerBook
    G4 167 MHz bus speed
    10.2.8 Jaguar (6R73)
    1024 RAM
    55.89 HD total capacity, 16.57 available
    No peripherals

    I was using audacity freeware to edit mp3 files
    I then burnt a CD out of I tunes and then

    No sound at all (web streaming or on Itunes)

    No chime even at startup

    No sound through headphones or w/ external speakers

    tried repeatedly jiggling the headphone and speaker out jacks to no avail

    there is no optical light on this model

    The USB out to a griffin via speakers worked

    Ran Disk Utility to no avail

    The permissions buttons were grayed out and unclickable

    All I could do was verify the Mac HD

    it read that it needed repair

    So I clicked repair disk and it said that it was repaired, but the same problem w/no sound


    Ran the Hardware Extended Test from the CD , and everything checked ok, but there is still no sound coming from the speakers when on the web or w/I-tunes

    Here's more of what I have done so far (to no avail)

    1.the keyboard volume key

    2.the speaker settings from the icon in the upper right corner

    3.The "sound" tab in the system preferences

    4.shut it down for about 45 minutes and re-booted to no avail

    I noticed that there was no chime volume at startup so

    5.I shut down rather than restart

    I hit the "on" button and waited for the boot sound(since the chime is silent)

    I waited 2 seconds and then hit the PRAM key combo

    I got the chime sound, but it didn't ring out as long as it usually does and it got cut short

    (now I get no chime when I do PRAM) I even hold it down and let it churn 3 or 4 times and nothing

    I then proceeded to the music selections in Itunes, and still no sound

    I rebooted from the Install CD in order to do the Archive / Install (A/I) , but when I got to the destination Drive Screen, no drives appeared in order to select. It was blank with a message saying to choose a drive.

    I then tried rebooting from the DVD holding both C and there was no option for A/I

    I them tried it holding down opt, and no choice for A/I

    I later found out that Jaguar doesn't have this feature

    As far as reproducing the problem, it is reproduceable as far as that the volume consistently doesn't work no matter what I try

    There are no error messages coming up
     
  2. S2NINJA macrumors member

    S2NINJA

    Joined:
    Oct 10, 2006
    #2
    Yep sounds very similar to my problem when i first got my mbp....

    no sound from ext, or internal speakers... no chime.

    1 more thing though: does your sound card show up in "about this mac" (more info)? if not, then i would say your sound card is fried for sure.

    I had to take mine to the apple store to get mine repaired. (under warranty). If you're out of warranty, i can tell you that it took 8 business days to get repaired, and the cost of the part+labour would be about $200 (out of warranty). this price assuming the mbp and powerbook are similar to repair...

    good luck!
     
  3. Geoff J thread starter macrumors newbie

    Joined:
    Apr 4, 2007
    #3
    yup, the SC does not appear in the profile, hence the fried SC assumption
     
  4. mpw Guest

    Joined:
    Jun 18, 2004
    #4
    Rub it against a piece of paper, if the paper turns transparent it probably is.
     

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