Solved! My Mitsubishi TV when I turn it on the light blinks 3 times and will not turn on, I have tried to reset it, unplug it nothing

Solution
Most broken things work fine until they break. Try unplugging it, waiting a few hours then trying again. May need a new power board or system board. Depending on the TV it is probably cheaper and easier to just replace it.
Most broken things work fine until they break. Try unplugging it, waiting a few hours then trying again. May need a new power board or system board. Depending on the TV it is probably cheaper and easier to just replace it.
 
Solution