Problem with my mixer

[soleyDF]

Ok so i have a Vestax PMC-05 Pro 2, and its having this problem when say Im playing the right table and im cueing up the other table in my headphones, you can hear it out loud on the speakers, and when i turn up the head phones volume it also turns the table im cueing up out loud up on the speakers, but if i unplug the headphones or turn down the headphones volume then you cant hear it.
some help would help me out a lot.
thanks guys

 

[DME-CEO]

that whole scenario soundz mad crazy, how long have you had the mixer? if it'z still under warranty I'd send it in and if not, if you want to keep it soundz like it needs to be serviced for some sort of short or something. I've never heard of anything like this, normally it'z the crossfader but that'z an easy fix and soultion. Good luck!