After reading all this forum in searching to resolve this problem i decide to ask someone.
The problem is signal. After I plug in turntables and mixer,led responsible for signal should have light up on the midi controller but there is nothing, only power led is working.Midi knobs seem to work, when i push them light flashes, effect knobs and track control are working too, vinyl is calibrated and sniping as it should but is NO Sound.

I installed it like in manual, I update it all , software and drivers.
What can I do to make it work?

Thank you