When playing vinyl there is a little tone ( piep tone )

Does anybody have a solution to this problem .
You only hear it when no record is on my tt and when setting my mixer on vinyl os bypass in vinyl mode . It is al little bit better when i bypass it whit the software .
GRTZ
You only hear it when no record is on my tt and when setting my mixer on vinyl os bypass in vinyl mode . It is al little bit better when i bypass it whit the software .
GRTZ