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Awesome CASESA Tool with a SYRINGE that you have to know!! In this video tutorial we are going to see how to make a Smart logic tip for LCD TVs, 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 ask for the largest one, with its sewing needle we are going to solder an electric cable to the sewing needle that is going to serve as a test tip, we are going to use 3 LED diodes of different colors, in my case blue, green and red, we are going to use two recycled electric cables from any other electronic device 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, heat shrinkable sleeve, hot hot melt glue to glue the whole set, 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 tip, it is a very useful and easy to make homemade tool since if we do not have an oscilloscope we cannot see These are electrical pulses or electrical signals that let us 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.