Usually you are told to seek a service center.

by R. Proffitt Moderator - 11/8/12 9:12 AM

In Reply to: Help with KPF-E60A20 by kparker93542

The KDF-E60A20 is another one of those RPTVs that you see failing out there. If the unit works for say half an hour then goes out I suggest you do your yearly cleaning of the vents and fans. If it's just dead, you'll find repair costs exceed what a new set can be.
Bob