on my 60" elite it is about 1/2" up from the bottom and 3" from the right edge.
maybe a little different on your 5020 but you should be able to take a flashlight and see it pretty easily, then place your IR emitter over the round sensor eye.
maybe a little different on your 5020 but you should be able to take a flashlight and see it pretty easily, then place your IR emitter over the round sensor eye.