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Impressive CASESA Tool with a SYRINGE that you have to know!! In this video tutorial we are going to see how to make an Intelligent logic tip for LCD televisions, audio equipment or mini components, monitors, computers ETC, for this we are going to use a syringe or syringe that we can buy at the pharmacy, we can order the largest one, with its sewing needle we are going to solder an electrical cable to the sewing needle that will serve as a test lead, we are going to use 3 LED diodes of different colors, in my case blue, green and red, we are going to use two electrical cables recycled from any other device electronic and we are going to place 2 crocodile or alligator clips, in the video I leave you the electrical or electronic diagram of how the circuit is assembled and to solder all the electronic components we are going to use 1mm thick tin, a pencil or soldering iron, a case heat shrink, hot hot melt glue to glue the entire assembly, and at the end of the video we are going to measure electrical signals on a Philips brand LCD screen with our smart logic test probe, it is a very useful and easy to do homemade tool since if We do not have an oscilloscope, we cannot see those electrical pulses or electrical signals to know if everything is correct when viewing the image on our screen or television. If you like the video, don't forget to leave your like, thank you.