The color intermittently dropped out of the video. It got progressively worse until there is no color at all. The color for the input select dislplay and the volume, mute and menus are still okay. The video looks good exept for the lack of color. I lhad a previous problem with the power supply that was corrected by the installation of a fan which could be related. I lost my schematic for the set so I cannot trouble shoot much more than I have.