HP dc7900SFF - Intel Core 2 of: 10 Windows - no sound on internal speakers
Unfortunately, that was the only help that HP has been for me. You can get this on the HP customer care site. If you want to DIY then I suggest you download the maintenance and the Guide Service for laptop HP Pavilion dv6000. Check the maintenance and Service of Guide for your model. Not sure if the same manufacturer for other portable model. Search for part # 431437-001, and you should be able to find the flat cables and the power button. The power button has been about $ 17 and 2 ZIF (flat) cables are about $9. From what I can tell, it's the combination of the power button and the 2 ZIF cables. I'm sure that stakeholders were not the problem, since I put the old ones back in and they work. Changed the button of power and LED board ZIF cables (BINGO) Changed the power button (did not see a change) Changed the internal speaker Altec (did not help) If you are not comfortable with this, you can obtain the necessary parts and get them in a store of the computer (such as Micro Center) and see if they can change the parts to you.
Unfortunately, it was a hardware problem, which means that you need to open your laptop. You don't have to bother with downloading drivers, I tried them all and none of them worked. Lots of hit and accuracy to get there, but its working now. Well believe it or not, I had my speakers work again. No one knows if I fake road with the power button? The microphone is also connected on the power button, but that seems to work well. The internal speakers are plugged into the power button card and I thought that this is where the problem is maybe as putting in a new internal speaker doesn't seem to work. It of really a sup Board and seems to have only the external ports for microphone and speakers, as well as the infra-red port. I'm not sure of the sound card because I don't know how its connected in speakers AND plug in external speakers work. My next step is to replace the sound card or the power button. I read the articles of troubleshooting on the HP Support pages, but nothing has worked so far. The device driver said his works very well, but I have no confidence in it, so I did a restore of the HP driver and give the original that came with the laptop. I went to the Control Panel, Device Manager and there is no red Xs anywhere. I can test the sound and the Visual looks like his work, but there is nothing that comes out of loudspeakers. Its does not display a red X or error at all.
The speaker in the tray icon works exactly as it did before. I can plug external speakers into the speaker port and they work fine.
I thought for sure the speakers just died, so I ordered a replacement on EBay and just am and successor yesterday. First of all, it was the left speaker, then both. Recently, my speakers Altec Lansing internal has stopped working. I have a laptop DV6-265us running MS Vista SP2.
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