How to repair a group of LED living room lights that do not light up

Updated on Living room 2024-03-25
2 answers
  1. Anonymous users2024-01-23

    First of all, you need to find out the cause of the fault in order to prescribe the right medicine.

    Generally, the LED light does not light up in the following situations:

    Insufficient heat dissipation leads to burning of the lamp beads In this case, the lamp beads need to be replaced.

    Poor line contact during installation, resulting in open circuit Troubleshooting the line fault, the driving power supply of the LED lamp, and replacing the power supply.

  2. Anonymous users2024-01-22

    Answer: The reason why the LED light is not lit is generally the following two situations: first, the leakage current of the LED is too large and causes the PN junction to fail, so that the LED light is not lit, which generally does not affect the work of other LED lights; Second, the internal connection lead of the LED lamp is disconnected, resulting in no current passing through the LED and a dead lamp. This will also happen if the line has been aged for a long time and there are quality problems with the luminaire itself.

    Again, a specific examination is needed to determine what the problem is.

    1. To overhaul the LED lamp, you can first use a slotted driver to carefully pry open the plastic joint between the metal screw of the LED bulb and the main body of the bulb along the metal screw of the LED bulb lamp, and keep it intact for recovery after repair. After opening, check all the electronic components of the conversion part, if there is no problem, then power on to check its output voltage, if it is a 2W LED bulb, the output DC voltage measured with a multimeter is, indicating that the fault is in the LED light-emitting component part.

    2. If the LED bulb light-emitting component is disconnected from the power supply part, then try to separate the plastic bulb made of plastic from the plastic body connected to it. Since this part is glued firmly, it may not be able to separate it completely, and it will damage the plastic bulb, but even if it is broken, it does not matter. After repair, it doesn't affect the glow, it's just not good-looking.

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