Model 47WXC43C older Panasonic HDMI goes to curb if I cannot figure it out. Wife!

Power button blinking, but nothing on screen, no sound. Tried checking fuse and taking
Back off to check for burn or signs of board distress. Nothing. Tried hooking up DVD player.
Nothing.

Something says it is simple problem like another fuse somewhere!

It sounds like there's more to it than just a fuse or something like that. It's possible the power supply has failed, and it's possible that the power supply is fused. You'll have to look inside the set as it's probably soldered in place.