barreaar

Q: Powerbook G4 Speaker Issues

The internal speakers for my powerbook g4 have stopped working. When i go to the sound panel to select them for audio output, they do not show in the options to select. Please, someone help, i cant afford another laptop.

PowerBook, Mac OS X (10.5.8)

Posted on Apr 17, 2015 3:43 PM

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Q: Powerbook G4 Speaker Issues

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  • by K Shaffer,

    K Shaffer K Shaffer Apr 17, 2015 10:49 PM in response to barreaar
    Level 6 (14,279 points)
    Desktops
    Apr 17, 2015 10:49 PM in response to barreaar

    You could try & reset the PRAM (parameter random access memory) since that may have a

    bearing on built-in audio volume and other settings in a PowerPC Macintosh; this reset is

    similar to the NVRAM (non-volatile random access memory) used by Intel-based Macintosh.

     

    Some support articles tend to mix these, so you can find PRAM discussed in Mavericks 10.9

    for unknown reason, and NVRAM discussed in reference to earlier Intel-based OS X, too. Both

    use the same keyboard shortcuts, and appear to perform similar reset functions.

     

    •OS X Mavericks: Reset your computer’s PRAM - Apple Support

    •How to Reset NVRAM on your Mac - Apple Support

     

    Another reset that may help, unless the problem relates to logic board issue, is PMU reset:

    •Resetting PowerBook and iBook Power Management Unit (PMU) - Apple Support

     

    So to try the PRAM or NVRAM type of reset first, as the settings may be corrupt; as last resort,

    Power Management Unit. In the PowerBook G3/G4 and iBook G3/G4 utilizes different instruction

    on how to reset this, read to be sure you choose the correct method for the computer hardware.

    Desktop models use different instructions, some have a process while others include a button...

    Later hardware, such as PPC G5, & more recent Intel-based Mac, have a different named process.

     

    Has there been any headphone jack of incorrect proportion been inserted into the audio port, which

    may have damaged the micro-switch inside the jack - and cause speakers to not get the signal?

     

    The answer may be software or hardware.

    Good luck & happy computing!

  • by barreaar,

    barreaar barreaar Apr 19, 2015 10:09 AM in response to K Shaffer
    Level 1 (0 points)
    Apr 19, 2015 10:09 AM in response to K Shaffer

    Resetting the PRAM did help! Thank you!

  • by K Shaffer,

    K Shaffer K Shaffer Apr 20, 2015 12:02 AM in response to barreaar
    Level 6 (14,279 points)
    Desktops
    Apr 20, 2015 12:02 AM in response to barreaar

    Glad to hear you were able to resolve the issue...!