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Windows 7: Sound won't work form Speakers but works in headphones

08 Dec 2010   #1

Windows 7 home premium
Sound won't work form Speakers but works in headphones

Hi everyone,

I have Sony Vaio CW26. Yesterday Sound stopped working from Speaker, it's still working from headphones. I tried to restore the system but the farther point I found was done 3 hours ago......

anyway, I found out too that the USB port ( which is next to the audio output) is not working too.

I checked the Device Manager and nothing is wrong, any ideas?


My System SpecsSystem Spec

08 Dec 2010   #2

Windows 7 Ultimate x86

Hi Ezom and welcome to SF!
That is most likely no driver problem. The way you described it makes me think it's a hardware issue.
Inside the headphone jack is a "micro switch that cuts the connection to the build in speakers as soon as anything is plugged in there. Sometimes those switches get stuck (especially if one uses headphone jacks that are slightly thicker than 3.5mm.
You could try plug/unplug the headphones (or a similar plug) several times to "unstuck" the switch

My System SpecsSystem Spec
18 Oct 2012   #3

64 Bit Windows 7
Still reading this thread?

I had this same problem, and your suggestion worked! Thanks for that. But someone from HP told me this could indicate a problem that might create a "short" in other components. Do you think this is true--that is, do you think this could go from an isolated (and apparently fixable) problem with the headphone jack to something bigger? I kind of just want to leave this alone...

In any case, thanks for the advice.
My System SpecsSystem Spec

28 Oct 2012   #4

Windows XP

Hi SledgeDG, I signed up to these forums to say thank you. Your solution of plugging and unplugging the headphone jack solved my problem! TRODD
My System SpecsSystem Spec

 Sound won't work form Speakers but works in headphones

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