Lenovo Thinkpad x230 no sound on speakers

[Andreasbest]

Hello!
A friend sent me a faulty x230 with no sound on speakers, headphones work great both channels.
Speakers are good (7.8Ω each) but no sound comes on their pins, i tested this with oscilloscope.
Any suggestions?

Thank you in advance!

[Andreasbest]

Re: Lenovo Thinkpad x230 no sound on speakers

someone? anyone?

[Andreasbest]

Re: Lenovo Thinkpad x230 no sound on speakers

Bump

[SMDFlea]

Re: Lenovo Thinkpad x230 no sound on speakers

Do you have continuity between L15,L16,L17,L18 and CN10.

[Andreasbest]

Re: Lenovo Thinkpad x230 no sound on speakers

Do you have continuity between L15,L16,L17,L18 and CN10.

Thank you for the help my friend!
Yes there is continuity between CN10 and both pins of all L.