Some say that digital equipment emits a "noise" that can affect analog. Obviously in your system it does. I have seen many power conditioners that isolate the analog from digital for this reason.
Does digital affect analog sound??
By turning off your CD player, will your analog sound be better???? I always have my CD player on while listening to my record player. Last night I had it off and my record player seemed to sound better. Am I hearing things?????