Chosen Solution
Watching tv and the screen just went black have tried turning off and on and unplugging audio still works fine I can change channels and hear different audio but no pictures through cable component or hdmi.
Purnima Kuniyal could be a backlight failure, bad power board, bad main board or bad panel. Shine a flashlight at an angle against the screen while the TV is on and you are on a channel that has sound. If you can make out shapes and silhouettes it is your backlight. If not then you will have to take a closer look at the boards on the inside of your TV. We will need to know the make and exact model so we can try to help you further. If you can, post some good images off your boards with your question so that we can see what you see. Adding images to an existing question
