NAD 5000 CD player

The NAD 5000 single disk cd player will not play most cds or only plays about 1 minute or so of music on the ones it does play. I inserted a cd cleaner and it will not play that. Many times when a cd is inserted it will not read the tracks. It does read perhaps 1 in 5 tracks, then plays for 1 minute, then stops. The other scenario is that it won't read any tracks and won't play at all. Any ideas other than sending it back to the factory? Thanks