DJM-V10 Decks 1 & 2 are way Louder than Decks 3 & 4

Hey Everyone,

So I just noticed this last week and my volume level on Decks 1 & 2 are significantly louder than Decks 3 & 4.  I have (4) CDJ 3000X and a DJM-V10 Mixer.  All connected digitally, and have new Korg DMX cables coming out of the Master L and R to the Sub, PA, PA on each side.  I believe I have all the setting correct and didn't find anything in the settings I notice was different in the CDJ's.  Has anyone else had this issue or am I missing something?  I tried the Channel Fader on the mixer on all 3 settings and it is the same throughout.  Don't get much time to play so maybe that's how it is and I am missing something.  Appreciate the feedback!  Thank you