The FFC jumper connector is a new type of data cable made of PET insulation material and extremely thin tinned flat copper wire, which is laminated through the production line of high-tech automated equipment, so it is also called a flexible flat cable connector. It has the characteristics of softness, free folding and bending, thin thickness, small volume, and so on.
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Because the ffc flexible cable is in a position where it is often bent, it is prone to breakage over time. Therefore, it is very important to master the repair method after the ffc jumper connector is broken. The repair of the ffc jumper connector is divided into four steps.
One, find the breakpoint.
The fracture of the ffc flexible cable is mostly caused by creases. It can be found visually or by using a high-power magnifying glass to place the soft cable under strong light. Under strong light, the breaking point can generally be clearly seen.
Second, deal with breakpoints.
Use a razor blade to gently scrape off the film on the surface of the broken line. The ffc cable is thin and the conductor is thin. This step must be done very carefully and with moderate force. When the ffc cable has a metallic luster and the thin cable is not broken, it can be completed.
Third, the welding breakpoint.
Preheat the soldering iron. Dip a proper amount of solder with the tip of a soldering iron, touch the solder joints, and solder the broken points of the ffc cable. In this step, you can sprinkle a little rosin powder to help solder. The welding time should not be too long, otherwise the ffc flat cable will be burnt easily. Welding can be repeated many times until it is connected with a multimeter.
Fourth, strengthen the breakpoint.
After the welding is completed, apply a layer of 703 silicone rubber evenly on the front and back of the solder joints and creases. After the coated 703 silicone rubber is air-dried naturally (about one or two hours), apply 703 silicone rubber once or twice, and wait until After the silicone rubber is completely air-dried again, it can be installed and tested. Since 703 silicone rubber is air-dried, it is elastic, so this treatment can not only fix the conductor solder joints, but also protect the ffc flexible flexible cable at the crease, avoiding the risk of it being disconnected again.
