My laptop’s right side internal speaker has stopped working. My headphones still work fine when plugged in, so it’s the speaker. What can I do to repair it? Is it possible to get a new speaker and replace it?
How to Replace Speakers on a Laptop
Laptop are notorious for having low-quality speakers. These speakers do not have the ability to get very loud. In addition, laptop speakers are not known to have a very long shelf life. Whether you are trying to replace broken laptop speakers or simply would like to upgrade them, replacing laptop speakers is a very easy process to perform.
Purchase a set of laptop speakers that are compatible with your brand of laptop. Every set of speakers will not fit every laptop, so make sure your laptop is listed on the package.
Open the laptop safely to replace the internal speakers. To begin this, first remove all of the battery components, both the external on that plugs into the wall as well as the internal battery pack. The internal pack is removed by holding down the release tab located on the bottom of the laptop and slide the battery pack from from its port.
Remove the hard drive from its housing by unscrewing it and sliding it out by the pull that that is attached to it. Be sure to make a note of the proper way it comes out. If you put it back upside down, the computer will not function correctly.
Unscrew all of the screws that hold the laptop's body in place. After the screws are removed, lift up on the laptop screen and separate it from the computer's body. There will be two wires that connect the screen to the motherboard; make sure not to disconnect these wires from their connections.
Separate the two pieces of plastic body frame to view the inside of the laptop. Once inside the laptop, identify where the two speakers are located. This will be different for each brand of laptop. If you can not find it, just follow where the holes on the outside of the body are located; this is where the speakers will be resting internally.
Unscrew the speakers from the spots and make a note of where they connect to the motherboard. Locate these connection on the new set of speakers to make sure that the new set will work properly before you remove anything. Then disconnect the old speakers and connect the new ones to the same location as the old speakers were removed.
Reconnect all of the components at the exact places from which they were removed. Re-Screw all of screws into the proper spots, power on the computer and test the new speakers to make sure they work properly.
Source : http://www.ehow.com/how_4970088_replace-speakers-laptop.html
If you would like the service manual for your laptop, Google search "(enter laptop name and model) service manual". Most times the service manual is available for free download. If it seems too difficult to replace (usually older models require taking almost the entire laptop apart in order to access the speakers and speaker wires), then purchase a USB powered laptop screen attachable speaker. One like this would be good, and may be louder and better sounding: http://www.amazon.com/gp/product/B0036VO6IC?ie=UTF8&force-full-site=1&ref_=aw_bottom_links. Also, if the speaker is blown and a replacement needs to be purchased, it may be difficult to find the part. http://www.ascendtech.com has many different replacement parts for laptops, including some speakers, but not for all models. Good luck.
Without checking it hands-on, it's impossible to be 100% sure. That said, it's most likely to be a loose contact, either at the speaker end or at the headphone socket end (the headphone socket as a "push to break" contact to disable the speakers when you plug in a jack. You could open the laptop, check the headphone jack first (with a multimeter/continuity tester) and then either replace it or resolder the wires which lead to the loudspeaker.
It could also be the loudspeaker itself or the software and even the audio chip, but the chance of any of these going wrong is vanishingly low (I've been in IT for over 20 years and don't remember ever encountering those components going wrong, nor can I remember driver problems only affecting one speaker while not affecting the headphone).
I would check for a youtube video of how to open and get to the speaker. A guide with pictures might do it as well. Than, just as Chris said, I would check the wire first. Maybe you film yourself, so you can be sure to get it back together.
You would have to get into the case. Open it up and just replace it. Is it in the top? With the monitor? Or bottom with the keyboard. Of its on the bottom, it will be easier to get to. As for the part, just Google it. speaker replacement.
But, before you replace, check and make sure its not just a loose wire.
if you have valid retore point, try it to revert back just before the problem started.
sometime factory settings can help the solution.
control panel -> hardware and sound -> sound
In the playback tab , enable and set your laptop speakers as the default device
also on the playback tab right click on empty space and choose 'Show Disabled Devices' then right click on the disabled device and choose enable.
try to reinstall the driver, go to device manager locate soud driver, right click on it and choose uninstall, reboot Windows will reinstall the driver.
if it is hardware problem then software will not fix it.