I have 2 Hifiberry DAC boards and both were working fine.
A couple of days ago one of my setups stopped having output from the phono connectors.
I tried the working HifiberryDAC on the Raspberry Pi that the silent one was attached to and it stopped working too and won't work on it's original Pi now! So now I think I have 2 faulty HiFiBerryDACs and I think it has damaged 2 Raspberry Pis.
Is this possible? Is there a fuse or something?
Is there a couple of points I can put a meter on to check things?
2 faulty HiFiBerry DACs?