2024-12-11, 11:36 PM
Hi!
Can I ask what your process is for soldering the QFN components on these boards? They can certainly be very challenging to solder correctly, and it does sound like most of your issues so far have stemmed from soldering faults on the QFN packages. e.g. even for a lack of audio output, it could be either a fault on the mute pin of the PCA8575, or a separate fault on the amplifier (U1).
Can I ask what your process is for soldering the QFN components on these boards? They can certainly be very challenging to solder correctly, and it does sound like most of your issues so far have stemmed from soldering faults on the QFN packages. e.g. even for a lack of audio output, it could be either a fault on the mute pin of the PCA8575, or a separate fault on the amplifier (U1).
