1) miswiring, please check wiring appear on kenwood player 2) pull out the main power connection. 3)press button 3 and 6 at the player then connect back the power 4) when DC error appear, press button 1. 5) when DC1 OK appear on the display, press button 2 and wait till DC2 0 display on screen 6)Turn off the player den turn back on 7) player is ok.. no more miswiring appear. Here's a link to see how it's done! https://youtu.be/F7N0hjraN80