As this customer said on the phone, this unit appears powered up and the front LED indicator is green, I suppose indicating good signal input. I think it sounds like the back light is out. (or associated circuitry) It's about two yrs old. Anyone do one of these L510B1 models? parts available? Average customer repair charge range? Samsung TV parts dept carry the parts? Or where to go? Thanks, Phil Bader -- Philip Bader Jan Phyl TV Inc. (estab. 1976) 3420 Recker Hwy. Winter Haven, Fl. 33880 Fax (863) 299-8821 email: tjanphyl@xxxxxxxxxxxxxxx ***************************************************************************** Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/