White stand by light just flashes

White stand by light just flashes

The stand by white light just flashes but tv will not come o, it did take 15 to 20 mins to start or come on but will not come on now ?any one know whats wrong

ANSWERS:

atbrodie14  sounds like a bad power board or main board. We would need to know the exact model and would need to see the boards etc. Post some good pictures of those with your question. Adding images to an existing question