ESS 9280C Pro chip type c Android fever-level earphone audio plug solder joint connection method is as follows: First, we can remove the sheath at the top of the plug to check the copper wire in the rubber at the root of the plug, because the bullet-proof wire contained in the earphone cable is relatively strong, so at this time we can break the bullet-proof wire with scissors, and then carefully cut the plastic at the root of the plug to expose the solder joint.

Then peel off the plastic glue of the earphone cable at the other end to expose four wires, two yellow wires are common ground (G-), the red wire is the right (R+) channel, and the green wire is the left (L+) channel, and then connect the earphone plug. The headphones connected by soldering are slightly different, with an extra wire inside.

Next, the enameled wire is plated with soldering iron and soldered with flux such as rosin or solder paste. You can learn by referring to relevant materials and carefully weld the end of tin-plated wire to the plug. Solder joints shall not be short-circuited. The solder joint should be moderate and the welding time should not be too long. The solder joints of the plug are separated by plastic, which is easy to "short circuit" after a long welding time.

Then weld the earphone plug with hot sol. Then the wrapped hot sol is baked and melted with a lighter, the sleeve is instantly sleeved on the back of the socket, and then the hot melt adhesive is allowed to cool, and the redundant hot sol is peeled off, thus completing the simple repair of poor contact of the earphone wire at the whole earphone plug.