Macbook M3 A2991 Speaker Audio Amplifier IC

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  • silver60618
    Member
    • May 2021
    • 36
    • United States
    #1

    Macbook M3 A2991 Speaker Audio Amplifier IC

    Im working on a 2023 Macbook Pro M3 A2991, that had a liquid spill, has no sound. Corrosion found near Speaker Audio Amp IC. Chip ID SN012776B0,
    I did find a SN012776B0 on A2442 model, but the sub and replaced it, no go. Anyone know if these audio amp IC's are cross compatible between 2021-2023 models?
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    • mon2
      Badcaps Legend
      • Dec 2019
      • 14615
      • Canada
      #2
      I would confirm with the vendor on how you plan to use the device before ordering. From our experience on other macbook audio repairs, the audio amplifiers appear to have unique I2C bus addresses. Also be sure to PRAM reset whenever you disconnect the battery. Otherwise, you will not hear the boot chime.

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