when I turn my tv on I have a picture then it turn black

when I turn my tv on I have a picture then it turn black

I'm having the same problem..when I turn my tv on I have a picture then it turn black....

ANSWERS:

@eaj123 sounds like an inverter/powerboard issue. Let us know what model your TV is and let's see if we can figure it out. It will help if you can provide us with some images of your boards so we can see what you see. Use this guide to add images to your question.