Preamplifier works, has DIN and RCA connectors, which are not connected. Therefore, it can not amplify on the DIN connector RCA my old LENCO turntable. Apparently, only DIN to DIN and RCA to RCA, but not crossed. So then one needs an adapter DIN to RCA. What is this? Are there any receiver with DIN input? So why the DIN input and output on the preamplifier?