The power turns on, but there's no sound. How about for repair, modification, or parts? Please note that this is junk, so no claims or returns are accepted. MM Cartridge Dedicated Phono Equalizer Cambridge Audio Azur 551P This is an entry-level model that can be operated with one-touch controls on the front panel. It features a Class A amplification circuit and discrete components, making it a cost-effective phono equalizer. Includes the main unit and adapter only.