My sound system is not working after my last updates on my imac,what shall i do to get fixed?

Hello any body who can help me out here?
My sound system is not working on my imac after the last updates,
WHAT SHALL I DO FOR????

apollos211,
You marked this as solved, so chances are no one else will respond.
You can try going Applications>utilities>audio MIDI set up, output tab and check to see if built in is selected.
Also check in system preferences>sound >output and see what is selected there.
If you look in the headphone port and see a red light (this means it is in digital mode), try taking a set off headphones and plugging them in and out several times also wiggle them around gently. There is a micro switch that sometimes gets stuck.
Hope this helps, if still no joy try reposting so that more contributers might check it, as once checked as solved it reduces the number of people checking.
All the best

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Nazia2011 wrote:
I have HP pavillion dv 1000. After formatting the laptop, sound system is not working. I can't hear any video sound; stand by and hibernate options are no more available. Please help me.
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My sound system is not working after my last updates on my imac,what shall i do to get fixed?

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