What is frustrating is that I have fixed this before but can not for the life of me find the web page or forum that I found the fix again. My child pushed in the tray instead of using the eject button and this model specifically states you can not do that or you have to send it in to get it serviced. When I turn on the unit I hear a humming sound, 1st the door opens 1/4 of a inch then it opens 1 inch, then opens all the way, then closes to the 1 inch position, then tries to close, then finally opens all the way then stops. Before I seem to remember there was a setting to reset the player at it's home position. Something like with the power off push the tray to the closed position then when turning on the power hold down the CD1 button the play button and the eject button at the same time and the player would initialize / reset to the home position and then the carousel tray would work as it should. Can someone please tell me what the sequence is to realigning the carousel tray? I was shocked that the service repair manual does not mention anything about aligning the carousel tray but has tons of pages on aligning the laser and trouble shooting circuit boards.