Hi, if you want to know if your IR flasher on the MX-3000 or any other remote in the world works, all you have to do is to point the ir window at a video camera, such as the one on your cell phone for example and then press a button that has a ir code attached to it, if you flasher works, you will see a bright white light comming out of the window, if it doesn't work, well, not bright white light and everthing stays black.

Hope this info is usefull

John