Hey guys, Newbie poster to this forumn.My kenwood 5700 amp functions fine on all input selections (aux,tuner,tape mon. A & B) except the phono one where I am experiencing a noticeable power loss and quite noticeable distortion. I searched some older posts but didnt find any with quite this problem. I cleaned everything suggested in other posts(pots, switches,input jacks) with a contact cleaner I have since I havent found any deoxit yet.I've been using a cd player for my source and all other input sources are clear and strong with it hooked up. Do I have to have a turntable hooked up to this input or is the source not the problem. Any suggestions would be great. Thanks ,Dan.