Led light belt does not shine how to repair _led lights with maintenance methods

LED light strips have gradually emerged in the decoration industry because of their light weight, energy saving, softness, long life and safety. So what should I do if the LED light does not shine? The following is a brief introduction to the maintenance method of the LED light strip.

1, high temperature damage

The high temperature resistance of the LED is not good. Therefore, if the soldering temperature and soldering time of the LED are not well controlled during the production and maintenance process, the LED chip will be damaged due to the ultra-high temperature or the continuous high temperature, resulting in the LED strip. The phenomenon of suspended animation.

Solution: Do the temperature control of reflow soldering and soldering iron, implement special person responsible, special file management; soldering iron adopts temperature-controlled soldering iron to effectively prevent the soldering iron from burning the LED chip at high temperature, it should be noted that the soldering iron can not stay on the LED pin for 10 seconds. Otherwise it is extremely easy to burn out the LED chip.

2, static burnout

Because the LED is an electrostatic sensitive component, if the electrostatic protection work is not done well during the production process, the LED chip will be burned out due to static electricity, resulting in a suspended animation of the LED light strip.

Solution: Strengthen the static electricity protection, especially the soldering iron must use anti-static soldering iron. All employees who come into contact with LEDs must wear anti-static gloves and electrostatic rings in accordance with regulations. Tools and instruments must be grounded.

Anti-static packaging

3. Moisture bursts at high temperatures

If the LED package is exposed to the air for a long time, it will absorb moisture. If it is not dehumidified before use, the moisture in the LED package will be thermally expanded due to excessive temperature and long time period during reflow soldering. The LED package bursts, which indirectly causes the LED chip to overheat and be damaged.

Solution: The storage environment of the LED should be constant temperature and humidity. The unused LED must be placed in an oven of about 80° for 6~8 hours before dehumidification to ensure dehumidification. Moisture absorption.

4, short circuit

Many LED lights have poor illumination because the LED pins have a short circuit. Even if the LED lights are replaced, they will be short-circuited again when the power is turned on again, and the LED chips will be burned out.

Solution: In time to find out the real cause of damage before maintenance, do not rush to replace the LED, found that the cause of the short circuit after repair or directly replace the entire LED strip.

LED light strip short circuit

It is still more troublesome to repair the LED light strip. If it is only used in a small range, it is better to replace a light strip directly. The price of the LED light on the market is only about 20~30 yuan/meter. I hope this article can help everyone.