No audio from my macbook pro

[soduno]

I've had a problem with my MacBook Pro (2008) for a while.
If I connect a headset or external speakers, there will be no sound from the Macs audio output. The built in speakers is working perfectly.

Do you have any idears what could be the reason? I tryed do reset the Pram but with no luck. If it helps there is no red ligt coming out of the macs output.

The problem occurred when I connected a mini-jack for my speakers.
Maybe the output thinks it's a S/PDIF and not a normal audio output?

Regards
Simon Duun

 

[Macchino]

If its under warranty, take it in for repair, if not... Dont.
Since the audio is wired to the logic board, it requires a brand new logicigboard wich is... well.. expensive

 

[soduno]

If its under warranty, take it in for repair, if not... Dont.
Since the audio is wired to the logic board, it requires a brand new logicigboard wich is... well.. expensive

Hmm. Found out something interesting. When I plug a headset or other into the Macs audio out - it detects it just fine - but still no red light and no sound. If i take the output from my iphone and plug in to Audio In in my mac - there is perfect signal. :S