Air's don't offer combo audio analog/digital output/input ports so you won't see the red glow from LED.
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Have you used the headphone socket to connect ear-buds, headphones or external speakers extensively to? Did you loose the sound after using the headphone socket?
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Have you used the headphone socket to connect ear-buds, headphones or external speakers extensively? Did you loose the sound after using the headphone socket?
Have you tried hitting the Mute hotkey F3 (older kbd) /F10 (newer kbd) and the hotkey volume up button F5/F12 a few times. Does the speaker Icon show up on the screen and have the maximum waves shown? Any sound coming out of the speakers when you do this? Check the system Prefs > Sound make sure you have Headphones selected and the volume control and Mute settings are correctly set.
If that doesn't work you may want to try to reset the SMC
See Apple Tech Note: http://support.apple.com/kb/HT3964
At this point it sounds like the headphone socket switch is broken and will need repairs
Air's don't offer combo audio analog/digital output/input ports so you won't see the red glow from LED.
Have you used the headphone socket to connect ear-buds, headphones or external speakers extensively to? Did you loose the sound after using the headphone socket?
Have you tried hitting the Mute hotkey F3 (older kbd) /F10 (newer kbd) and the hotkey volume up button F5/F12 a few times. Does the speaker Icon show up on the screen and have the maximum waves shown? Any sound coming out of the speakers when you do this? Check the system Prefs > Sound make sure you have Headphones selected and the volume control and Mute settings are correctly set.
If that doesn't work you may want to try to reset the SMC
See Apple Tech Note: http://support.apple.com/kb/HT3964
At this point it sounds like the headphone socket switch is broken and will need repairs