My panasonic SC-PT460 players dvd draw keeps opening on its own whenever I switch it on the draw opens and everytime I close it , it just opens again .
This will be caused by a faulty microswitch internally, seems a fairly common complaint, rather than describe the remedy, use this link as it has a photo:
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix dvd players.