Help regarding clipping with trim around 10oclock position

hi so my set up is 2 Pioneer DJ PLX-1000 & DJM-750 MK2 Mixer with ortofon dj mk2 cartridges , having set up today and wanted to spin some of my old vinyl and the chanal gains are in the red around 10o clock position , is this normal ? i have checked the wiring the ground ect .. am i missing anything and has anyone else ran into this issue?