Hi guys, First of all Happy new years! I want to make my nye mix but my damn source button doesnt work in my mixer! I dont know why.. it was working fine before. Both source A and B dont work. Is there any solution for this? 
PS: source button is the button you press when you want to listen to the other side. example you are hearing A and want to hear B, you click source B. PLEEASE Help me! 
