Rane ttm 56s set up
Just bought this rane ttm 56s from ebay. Cant figure out how to set it up. I have 2 turn tables plugged in but it only plays one out loud unless I press the reverse button. So it’s either one or the other but not both at the same time. The cross fader and volume faders do not controll anything. Nothing happens when I slide any of them. Is it detected and should i send it back ?