ETMoody3
Well-known member
Hey there. I have been building a project around the teensy 3.1 and the audio shield. In the process of increasing the complexity of the system the audio shield stopped sending any audio to the line out jack but still sends generated tones out of the headphone jack. Additionally, line input seems to have stopped working. However...when the unit is not powered the signal from line in to line out is passed through. Powering the system cuts off the signal. It is noteworthy that this happens regardless of code or teensy used as I have a second uC handy and have tried various example programs on both processors in addition to my own code. I'm honestly unsure how this may have happened as I have checked my circuit for problems and found none. My first conclusion is that I have damaged the chip on the audio shield. Posting here due to puzzling pass-thru function. Something still works... thoughts? The behavior is the best description of the apparent problem I can offer. I am already planning to replace the unit, any information on this will help me decide what happens to the old one.
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