AV receiver no S/PDIF

[james434]

Hello to all. This is my first post hope to do it right.
I own a VSX-324 I use it to listen from PC music and films audio with S/PDIF connection recently stop working, the o/p from PC is ok checked signal to ADC (pcm9211) pin is ok coax I/P works ok. Hope that is only setup problem. Can anyone help please. Thanks.