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I had this module on my raspberry CM4 IO board: Adafruit MAX98357 I2S Class-D Mono Amp The module works perfectly on my IO board, but when I made my board (see diagram) it just keeps on grunting when I boot the CM module and if I turn on e.g. music via mplayer the speaker stops grunting and is silent, if I turn off the music it just grunts again. I can't seem to get it to work. I did the installation using this guide:https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp/raspberry-pi-usage Thank you for your advice schematic

PanFiluta
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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. – Vadim Oct 06 '23 at 06:58

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It is possible that there had been some manufacturing error with your own board. Try to troubleshoot your PCB. See if there is a short circuit. Test with a multimeter.

liaifat85
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