I have a hp pavillion dv6000 series laptop.Its speaker suddenly stopped working yesterday.But the headphone is working fine.Sometimes sound is coming from internal speakers.I think its a loose connection some where inside.Can you help me fixing the problem myself.
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How can you say that it is the internal speaker that is defective? Have you tried another sound output, like headset or external speakers? If you have, and it works then the problem is definitely the speakers. You will need to have it serviced/replaced. If even the external speakers do not dork, then the problem is the sound card which is embedded on the motherboard. That means you will need to have the motherboard replaced.
But before anything else, try to check the sound playback if it is properly set to default. Sometimes we may have installed an application or clicked on something that changes the default output of our speakers. Check it first and hopefully it fixes it. Make sure that you have the right default sound output.
The sound power comes through a ribbon cable to the
power button,along with the power supply switch wiring. This "power ribbon cable"( part # 431437-001) has frayed where it connects to the motherboard. The new cable will cost you about $5 with free shipping on ebay and takes about 10 minutes to replace. You can find step by step instruction on the repair by searching "dv6000 power ribbon removal".
Brieftly speaking, my internal speaker stopped producing sound, but when I plug earphones in, there is sound in the earphones.
Just plug in-and-out ur earphones several times (it took me 5 tries) and voila internal speakers work again!
I think there is a mechanical sensor inside the sound output (plug for the earphone) so that once it senses a plug getting in, it shuts internal speaker.
Maybe the mechanical sensor was jammed (spring problem i guess) and it still believe that u have ur earphones plugged-in. "Clogging" the hole for the earphones would allow the spring to spring back to initial position...
Find a pair of headphones and plug them into the laptop and see if the buzzing continues in the headphones. If it does, it's a driver problem. Uninstall Audacity (which I don't think works too well with Vista, unless they've released a new version) to see if the problem goes away. If the buzzing is only occuring on your laptop speakers, but not in the headphones, then you may have blown them by using the wrong impedance out of your amp...
I rather suspect it's an audio driver problem. What happens when you remove Audacity?
First of all, check if the issue is with the Microphones of your Notebook.
Try disabling or turning off the Microphone of the Notebook to check this.
Additionally, try reinstalling the Audio Drivers of the notebook if possible by checking the Notebook driver page.