Infrared Led
Does my remote controll have an infrared LED?
I am wondering: How can the signal of my remote controll reach the TV if it is actually an infrared signal? Do I have some different technologie? Can I not buy one of these fancy remote controller that work with every TV?
Thanks for helping out, you save my Xmas
I am willing to bet (but am not completely sure) that the LED pulses, which can be interpreted digitally, to perform the different actions (how else would the TV "know" to adjust volume, channel, ect?). The universal remotes would simply have all those different coding systems preprogrammed into it (notice how you have to select one with a universal remote). You could probably figure it out for sure by probing the input trace to the LED with an oscilliscope and enter in various commands, but who has the time right?