Hey Cack, thanks for your message. As noted by Keith above, we are able to test if there's a physical fault with single buttons.
When each button is pressed on the remote, an IR signal is sent from the remote. We can visually see if a signal is being sent by using a cell phone's front-facing camera. Are you able to try this out for us?
Grab your remote, and grab your cell phone, launching the front-facing camera. If you point the remote directly at the camera and press the "AM/FM" button, you will see a light flash on the screen. This is the IR signal being sent. As we know that this button works correctly, we should successfully see the light on the screen.
Next, press the "Power" button. Do you still see the flashing light on your cell phone's screen through the camera? If not, then there is a physical fault with the remote. If the light does flash, then the remote is still operating correctly. Let us know how you get on, or if you experience any difficulties with this at all.
