First prepare a temperature-controlled soldering iron with a grounding wire. The width of the soldering iron should be the same as the metal end of the chip component. The temperature of the tip must reach 320 degrees Celsius. In addition, prepare a pair of tweezers, except for tin (copper braided wire or multi-strand core wire).
First prepare a temperature-controlled soldering iron with a grounding wire. The width of the soldering iron should be the same as the metal end of the chip component. The temperature of the tip must reach 320 degrees Celsius. In addition, prepare a pair of tweezers, except for tin (copper braided wire or multi-strand core wire). Use a fine low temperature rosin wire for welding, proceed as follows:
1. Place the tip directly on the upper surface of the damaged component. When the solder on both sides of the component and the underlying adhesive melt, the component is removed with tweezers.
2. Use the tin strip to remove the residual tin on the board. Then wipe off the adhesive and other stains on the original pad with alcohol.
3. Only apply a proper amount of solder to one side of the board.
4. Use tweezers to place new components on the pads. Quickly heat the new tin on the pad, let the tin contact the metal end of the chip, and gently "stick" it. Never use a soldering iron tip to access new components.
5. The newly replaced chip element has been fixed at one end and the other end can be welded. Carefully heat the pads on the board and add a proper amount of new solder to create a bright curved surface between the pads and the component ends. It must be noted that the solder should not be too much, and if the solder flows under the component, the pad will be short-circuited. When soldering, only the molten tin can be immersed in the metal end face of the component, and the soldering iron tip cannot be touched. After one end of the component is soldered, the other end is soldered. The solder should be completely adhered to both end faces of the component. In these two steps, the right amount of solder is the key to success.
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