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The use of LED bulbs has been very common, energy saving is its biggest feature, but compared to incandescent and energy-saving lamps are expensive. For bad LED bulbs, many people simply throw the trash cans and buy new bulbs. Market on the brand led light bulb Dozens of, a motley also want seven or eight pieces.
If you can repair these bulbs, in addition to save a little spending, but also to make a contribution to environmental protection, the most important thing is to be able to experience the fun of churn. First we'll disassemble a damaged LED bulb. You can open a hemispherical lampshade with a fingernail or a tool such as a word, and then we can see a circuit board inside.
The front is a number of yellow light beads and other SMD components, with two different types of capacitors on the back. First of all, we need to see if the two wires from the lamp socket are disconnected, and then look at the back of the two capacitor there is no breakage and drum kit. If you don't see any problems with the appearance, look at the appearance of the front light beads and other components. Do not find the problem, you need to use a multimeter to measure. If measured is the back of the two capacitance problem, you can buy the same model of the online replacement of accessories, very cheap, a few yuan can buy dozens of. If there is a problem with the patch components, then the light bulb is not worth repairing, very troublesome.
Perhaps many readers see here will be impatient, so complex also say simple, do you want to go to the Blue Xiang further study? The following question is more common, then you can solve it yourself. If you notice that one of the light beads has a point on it, the light bead is damaged because as long as a light bead is out of order, it is like a wire breaking from the middle, causing the whole light to turn off.
By using a sharp-nosed clamp to clamp off a transparent shell above the lamp bead, the base of the lamp bead will be leaked. Then prepare the soldering iron and solder the base with a tin of wire. (the author is the first time to use electric iron, so the process is too ugly, we do not take offense). And then use a multimeter to measure the buzzer, is not already the LED lamp bead base on both sides of the connection.
When you're done, put the lamp on the lampholders and you'll find the lights are on again. If you don't have these tools, you can go to the shop where you repair your phone and ask someone to help you weld it. But now the multimeter and electric iron online is very cheap, a spare set of home, will give you a lot of convenience, perhaps you will become a master maintenance.