Might be the socket, fuse or power cord but you've probably already checked those which points to the internal power supply of the machine - unlikely to be the on/off switch but you never know.
Good luck...
Peccavi
September 2009
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix dvd players.