A mini stereo jack is also called a 1/8-inch jack or a TRS connector. TRS stands for "tip, ring, sleeve." A TRS plug has three metal connectors separated by plastic insulators, and each connector contacts a different pin in the jack. The tip is stereo left, the ring, or centre part, is stereo right, and the sleeve, the lowest part of the plug, is the common or ground connection.
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Things you need
- Soldering iron
- Copper wire
Plug in your soldering iron and set it in its stand while it heats up. In the meantime, dampen a sponge, squeezing out the excess water.
Wipe the soldering iron tip on the damp sponge to clean it. There may be some smoke. Don't worry, this is normal. Clean the tip quickly, without leaving it on the sponge long enough to burn.
Melt a little bit of solder onto the tip of the iron. This is called "tinning" the iron, and will help it transfer heat.
Solder the ground connection to the terminal closest to the jack. This is the terminal which will connect to the sleeve of the plug.
Solder the ring terminal to the right stereo connection. Find the ring terminal by looking at your jack's data sheet. If the data sheet is unavailable, look at the jack and find which terminal connects to the pin between the face of the jack and the outermost pin.
Solder the left stereo connection to the tip terminal of the jack. The tip terminal is the outermost pin on the jack, furthest from the face. This terminal will connect to the tip of the plug.
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