That is a receiver, with a built-in phono amp.
So, in one box you have a phono preamp for connecting a turntable, a preamp (for volume control, tone control, source selection, etc), a tuner, and a power amp (to drive your speakers).
If you plan to use it with a separate phono preamp (instead of using its built-in phono amp), the separate phonoamp should be connected to any input jacks OTHER THAN phono.