Eleven Rack problem

Hello,



I know that this kind of problem is easy to solve but not for me so I need Your help. I bought used Eleven Rack and I cannot setup it properly.

When I plug guitar and headphones there is no sound. I tried different settings but nothing change even reset.



Can someone of You dear Avid Comunnity write to me point to point how to setup this machne properly. I think my problem is in Output or Input settings.



Thanks



Paul