Is there anyway that we could purchase replacement parts for 6000 series smart panels? We have quite a few that are getting black screens. Back light will work, but no image. Yes, they are out of warranty, but we feel its within our means, and right to repair issues of this nature. The unfortunate problem is that you don't offer parts. Anyone willing to discuss this may contact me at blawson@wisek12.org Many thanks for your time.