TV wont turn on,no sound ,no picture - Televison & Video

Your convergence chips likely failed and shorted out. This will cause many project TV sets to shut down to protect themselves from any damage. Take a look at this fixa page for more details or goto the site www.TvRepairKits.com for parts and instructions. Here is the fixya link http://www.fixya.com/support/r11932741-convergence_repair_dull_video_repair