Chosen Solution

There was a power surge from a lightning strike and the tv popped and went off. No power and no standby light. I replaced the power board but still no power or standby. Have tried multiple outlets to make sure that it wasn’t the outlet that was bad. Not sure what else to check. Thanks for any help.

@dfd6691 since you already replaced the power supply I suggest you use a multimeter and check the outputs from the PSU to the mainboard. If your power supply works properly your main board is the most likely candidate for replacement. Post a picture of your boards with your question so that we can see what you see. Adding images to an existing question

First check the wall plug for power. Check the fuse next. Here’s how to diagnose it: https://www.youtube.com/watch?v=PjIUKlVW