I have a DAC+ standard. with RCA jack.
I have previously had the DAC+ working using picoreplayer on RPi2B.
Recently I've tried using this again, but the DAC+ does not appear to be recognised.
I've now purchased a RPi3, and am getting the same problem.
I tried installing the plain Raspbian from :
This too does not recognise the DAC+.
aplay -l still says no soundcard.
Any suggestions? Thank you.