LEDs, or Light-Emitting Diodes, have been around for a half-century as of this writing. They have gotten more popular over the last years due to their long-lasting efficiency — sometimes outlasting normal fluorescent lights. Many people consider the use of LEDs in their products as new. However, they have been used in the businesses such as manufacturing for decades. In fact, if you look at the remote control for your television or garage, you’ll notice an LED which does something special. It gives off an infrared signal to activate or open a product.
Sometimes, even when the unit is powered up, this LED light doesn’t do what it is supposed to. This is when someone needs to do a test infrared LED procedure to make sure the problem is not located there. And, there are actual tools to accomplish this. Companies like Finn Test Electronics have sensors to track issues and resolve them.
These sensors look like writing implements with three prongs at the top. These sensor nodes are hooked to the infrared LED and, within milliseconds, can detect an LED activation. Many of these sensors now have the ability to block out ambient light from other sources in order to provide a more accurate reading.
This is done for color and brightness as well as placement. Why placement? Think of those times you couldn’t change pull up your favorite Nexflix episode because you were sitting in a position where the infrared light of your remote didn’t reach the target. Misplacement of the LED would cause this to happen no matter where you sat.
Infrared LED testers are utilized in the manufacturing process prior to distribution. The tests are part of a quality control to ensure complete accuracy and to make sure the light is bright enough to send the infrared beam to the target.
But what if the LED fails after you start using the remote? Replacing the batteries to see if that’s the problem is one solution. Another is to replace the infrared unit with a new one. If all else fails, look to replace the infrared LED itself to get things working again.