G4 PowerBook external sound stopped

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PowerBook

Apple's line of PowerBook laptops was intended for the professional and power users. The PowerBook line includes the PowerBook 100, Duo, 500, and 5300 Series; the PowerBook 1400, 2400, 3400; the PowerBook G3, G4 Titanium, and G4 Aluminum.

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bounce @bounce90404

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发帖于: 2010年5月10日

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G4 PowerBook external sound stopped

I have 2 g-4 PowerBooks, a 667 and a 867 and the external sound in both stopped working. The sound is turned on and sound works thru headphones. Any ideas how to fix the internal sound. In an apple discussion group others had the same problem and no one knew why the sound stopped

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lemerise @lemerise

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发帖于: 2010年5月10日

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- try PMU and PRAM reset.

- try repair permissions

- To know if the issue is hardware or software try to boot from another source than your internal HD (use firewire target mode with a compatible Mac with working sound or use a firewire external drive)

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