This unit has a built-in Phono preamplifier (Phono Stage), so if your turntable does not possess its own Phono Stage, you may connect the record player to the input on the rear of the unit marked 'Phono'.
If your turntable does have a built-in Phono stage or you are using an external version, you should connect to any of the other analogue inputs, as the 'Phono' input may produce an unwanted distortion.
Note: Do not connect a non-phono source to the phono input.