Jwin JK-777 Nostalgic Stereo System with Turntable, CD Changer, Cassette Deck, and AM/FM Tuner Shelf System "kenwood cd changer working" Questions

Kenwood stereo system XD 550. When I turn it on, the display works, and appears like the FM will start, but in 2-3 seconds, it just displays ------------ And the set stops working. After switch on-off