appears with logo and then tv immediately turns off.

@karolynannel does it turn off, turn off or is it just your screen that turns black? Does the power LED light turn off as well? What exact model is your TV?

First unplug everything that is plugged in the back of your TV. unplug the TV and push the power button for about one minute, then plug it back in. See if that resets your TV.

If your TV screen remains dark then use a flashlight and shine the beam at an angle against the screen (in a darkened room). See if you can make out shadows or shapes. If you do, then it is your backlight that has failed. If you do not see anything, unplug your set and remove the back cover. Then visually check the boards for any obvious damage like domed or leaking capacitors. Check all the wiring and unplug the wires and plug them back in, make sure they are properly seated. Post some images of all of your boards with your question. Use this guide iFixitでの質問に画像を追加する方法 for that so we can see what you see. It is possible that this is either a power board issue or a T-con board issue.