My lenovo y 550 ideapad laptop sound is not working headphone jack inside ared led is bliging

www.pchub.com/uph/brand/-93/HannStar-part-spare.html

Reinstall the driver

plug headphones and play a video or music file

if you hear it ok then the driver is installed ok

Laptops and netbooks IdeaPad Series laptops IdeaPad Y430 Lenovo Support...


check your settings

1. Click Start and type "sound" into the search bar. A list of search matches is displayed.
   
2. In the search results, click Sound under the Control Panel list.
   

The Sound screen is displayed.

That's pretty normal with built in connectors. For a workaround grab a cheap USB sound card from eBay or somewhere else. It worked for me.
High Quality External USB 2 0 3D Virtual 7 1 Channel Audio Sound Card...

If the head phone jack works its more likely to be the problem, if you use the headphone jack a lot the connections inside it can get worn or bent out of shape--engaging the headphone jack should shut the speakers in the unit off.

Other possible reason is a bad speaker or connections.

Check the DC Power Jack where the Power Cord Plugs into the laptop.

Maybe your DC Power Jack which is where the power cord plugsinto the computer is bad. Take an ink pen and push the tip inside thejack and see if the little pin wiggles, if so the jack is bad. You'll have totake the laptop apart to fix it. Most times it is soldered onto themotherboard, so you will have to desolder the old and solder a new one.

see if this video helps

https://www.youtube.com/watch?v=kisXGxK52N4

Go to this link: http://consumersupport.lenovo.com/us/en/DriversDownloads/drivers_list.aspx?CategoryID=13

This is where you can find audio drivers which are compatible with Win7.

The jack for the charger has come loose inside the laptop. How do I repair it?

You need to take the unit apart down to the system board. Sorry, I do not have the sefrvice manual.

The link below shows how to resolder the connector on the system board.

http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309