Self-maintenance and troubleshooting of common minor faults in led lamps

Self-maintenance and troubleshooting of common minor faults in led lamps Common small faults of led lamps can be repaired and eliminated by yourself. If it is obvious that water has entered or short-circuited and burned, you can replace it with accessories by yourself. In this case, a shell is valuable. If the shell is expensive or the whole set is ugly, such as floodlights and street lights, then the light source and driver must be replaced, and you can replace it yourself with some sealant. The suggestion is to find a manufacturer that does this and buy a matching set, measure the size and take photos, and don’t put the light source in it when you buy it, especially don’t buy it separately, don’t think it’s cheap! If it is suddenly off or dark, but other circuits are intact, that is to say, other electrical appliances are fine. In this case, the lamp itself is nervous, that is, it is broken. This situation is more common. We first remove the lamp and slowly analyze! Take a simple LED bulb as an example, open the cover first, and pick it along the edge gap with a blade. After opening, see what driver the light uses, whether it is a board connected to the light panel or the components are soldered to the light panel. That is, the independent IC and DOB scheme, the independent IC is a little troublesome. The first point of troubleshooting: first check whether the lamp beads are in good condition. If there are black spots in the middle of the lamp beads, it is basically broken. If there are only one or two bad ones, you can fix it yourself. If it's too bad, just replace it! Lamp bead burned out Troubleshooting two points: whether the lamp line connector of the led street light is off, especially the line on the lamp head, the line here is easy to fall off, try to pull it out gently with your hands to see if it is not in good contact, the maintenance is also simple, the nail on the lamp head can be lifted with a blade Lose.

The third point of troubleshooting: If it is a DOB solution, that is, the one where the components are all on the panel, check if there is any gap in the soldering of the components, you can turn on the power, and try to press them one by one with an insulated screwdriver to eliminate the fault point . If it is driven by an independent IC, it is more common that the connecting wires on both sides are broken or the contact is poor, and the copper sheet is warped. You can solder it yourself and use it. If there are no apparent problems above, you can only buy another one for DOB. You can try to change the driver for IC to determine whether it is a driver problem or a light source problem. No driver? Remove another lamp and replace it! If you are cheap, you will be cheap to the end! If the driver is not turned on, it is a problem with the light source, and if the driver is turned on, it is a problem with the driver! Simple maintenance of LED light source It is relatively simple to test with a multimeter. If there is no multimeter, you can first install the lamp on the lamp holder, turn on the switch, and use tweezers or the like to connect the two ends of the burned out lamp bead. (The voltage of the lamp bead here is only 2- 3 volts is not dangerous) If the light can be on after connecting, then poke it off, solder a similar lamp bead yourself or directly solder it with tin wire.

If it does not light up after connecting, then the problem is not limited here. First, replace the faulty lamp bead with a lamp bead and solder it with tin wire before continuing to try other lamp beads. You can span multiple lamp beads Let's test in sections together to find out the range of faulty lamp beads until all bad lamp beads are found and replaced. Simple maintenance of LED driver The damage related to electronic components cannot be repaired. Here we can only find some places where the solder joints fall off for simple repairs. Please note that not all drivers of the same manufacturer and the same specification and model are not universal, and the same cannot be said for electronic components. Universal, but it's already broken anyway, and it might be good to solder one in a place that you can understand if you have the conditions.