Latitude 3440 microphone buil-in and headphone's didnt work

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  • bbanana
    Father Land
    • Oct 2021
    • 164
    • Vietnam

    #1

    Latitude 3440 microphone buil-in and headphone's didnt work

    My 3440 detect build-in micro but have no signal, the sound output is nomarly with internal speker and headphone, but i use headphone the microphone not detect too. tested with other webcame and build-in micro but not working.
    this board use ALC3223 IC

    DMIC_CLK, and DMIC_CLK is 3.3v,

    i have no this ic, and dont know how to resolve this issue.

    thanks for your advance!

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