Lighting problem, half of the light is not on?

It may be that there is a problem or damage to the drive circuit, remove it for inspection.

If you can't disassemble it yourself, it is recommended to send it to a professional for repair.

The first reason: there is a problem with the circuit of the living room light. Generally, the circuit of the living room lamps is in parallel, and the parallel circuit has two situations that will cause the lamp to be half on and half not to be on, one is that there is a bulb in the parallel circuit that is broken, and the other bulbs will strike, this situation can be directly observed by observing which lamp is not lit and then replacing the bulb on it, it should be noted that the power needs to be cut off when replacing the bulb to avoid dangerous events such as electric shock in the replacement process.

The second is that one of the circuits in the lamp circuit is broken, and in this case, it is necessary to detect the part of the wire that is broken first, and then carry out maintenance. The second reason: the wire connected inside the living room lamp is disconnected, resulting in no current passing through the part, and the bulb does not light up.

In this case, you need to open the lamp for overhaul first, and you can use a tool to gently pry open the joint between the metal mouth of the lamp and the inside of the bulb, and you need to be careful to prevent it from being damaged by excessive force. After a series of work is completed, the first is to check the electronic components in the lamp, if the electronic components have no problem for so long to start checking the circuit, the circuit problem can be detected by disconnecting the power supply of the components in the bulb, and then disconnecting the round plastic of the bulb and the connected plastic, and then carry out a simple repair, generally after the repair of the lamp will be lit on the lamp, if it is not lit, then it needs a professional maintenance person to check and replace. The third reason:

The quality of the lamps and lanterns. Generally, the quality of lamps and lanterns is not good, and if it is caused by the quality of lamps and lanterns, half of the lights are on and half are not on, you can directly contact the dealer to replace the lamps. Of course, when buying lamps and lanterns, we need to take these issues into account and choose good lamps.

There are several principles for the selection of general lamps and lanterns, first of all, the manufacturer of lamps and lanterns, production batch numbers and other information, if the imprint is not clear, do not buy. The second is that you can buy well-known brands, generally well-known brands have a good reputation, if the product has quality problems, there will be after-sales to solve it in time, even if it is not in the warranty period, you can spend a little money to let it help to check.

1. The line is loose.

2) First of all, check and confirm whether the serial port cable used to connect to the controller is loose or abnormal, or there is a phenomenon of falling off. If it goes black at the beginning of the loading process, it is likely that the screen is blacked out due to a loose communication cable during the communication process.

2) Check and confirm whether the HUB distribution board connected to the LED screen and the main control card is tightly connected and reversed.

2. Power supply problems.

Make sure that all hardware, including the control system, is powered on correctly. Whether the power lamp is flashing, whether the power supply is faulty, it is worth noting that the use of inferior power supply is usually prone to this phenomenon.

3. Connection problem of LED unit board.

1) If the longitudinal direction of several boards in a row does not light up, check whether the power supply of this column is normal. (2) If the horizontal direction of several consecutive boards is not lit, check whether the wiring connection between the normal unit board and the abnormal unit board is connected; Or whether chip 245 is normal.

4. Problems with software settings or lamps.

If there is a clear demarcation between the two, it is more likely to be caused by software or settings; If there is an even transition between the two, it may be a lamp problem. The above is the reason and solution for half of the LED display to be half bright and half not to be lit. If the problem is due to a hardware failure or cannot be identified, please contact the service provider for technical support.

1. Make sure that the control system hardware is properly powered on.

2. Check and confirm that the serial port cable used to connect the controller is a straight line, not an intersecting line.

3. Check and confirm that the serial port connection cable is intact and there is no loosening or falling off at both ends.

4. Select the correct product model, the correct transmission mode, the correct serial slogan, the correct wave standby rate according to the LED display control software and the control card selected by yourself, and correctly set the address bit and baud rate on the control system hardware according to the DIP switch diagram provided in the software.

5. Check whether the jumper cap is loose or falling off; If the jumper cap is not loose, make sure the jumper cap is oriented correctly.

The lamp beads on the LED strip are generally connected in series, and one lamp bead will not light up all the lamp beads. There are also some parts that are not lit, and the other part has a faint light, there are two possibilities, one is that all the lamp beads that are not lit are broken, and the other is that the connection line between this part of the lamp beads and the other part of the lamp beads is disconnected.

The lights in the living room are half on, half on, half not, and the warm light is all on, what is the reason.

The LED light in the living room is half bright and half is not bright, and the warm light is all bright, what is the reason for your dear, 1. If the LED light in the living room will be half bright and half not bright, it may be caused by damage to one of the small lamp beads in the living room LED light. The LED lights in the living room are generally connected together in series, and when one of the small lamp beads in the living room LED lamp is damaged, the whole group of small lamp beads will be affected. 2. We can check in detail whether there are small lamp beads damaged in the living room LED lamp, under normal circumstances, there are generally black spots on the surface of the damaged small lamp beads, if there are damaged small lamp beads, then it must be because the small lamp beads are damaged and the whole group is not lit, so that the living room LED lights appear half bright and half not bright.

3. When you find that the LED lights in the living room are half bright and half not on, you must find a professional electrician to help you with testing and maintenance in time, and replace the damaged small lamp beads with new ones, so as to avoid affecting the normal use of the owner.

The low beam light is on and the bulb is not on.

The advantages and disadvantages of car headlights are related to safe driving at night, once a common failure occurs, it will produce a greater safety risk to safe driving, and it must be repaired on time.

There are various reasons for the low beam light to turn on and not to light up, it may be that the tungsten wire of the bulb is burned off, or the fuse wire of the low beam lamp is broken, or it may be that the bulb route is difficult or the power socket is in poor contact, which must be checked one by one.

If the low beam light is not on, it is more likely that the bulb is burned, and it can be replaced with a new one. For maintenance and replacement, the general halogen headlights are lower, and the LED lights with higher chromaticity are more expensive, and the actual ones are related to the well-known brands, models and specifications of the bulbs and their car series. In addition, there is a certain amount of labor cost to arrive at the store.

The reason why the low beam light is on and not on

1. It may be caused by poor line contact of the bulb on the side that is not lit, and you only need to reinstall the bulb once.

2. If the bulb does not light up when it is reinstalled, it may be that the base of the bulb is damaged and needs to be replaced with a new bulb base.

3. It is also possible that the fuse of the bulb on the side that is not lit is broken, and a new fuse needs to be replaced at this time.

4. It may be that there is a problem with the line on the side that is not lit, and at this time, it is necessary for a professional car repairer to repair it.

Check if it is two sets of lights itself, if so, the power adapter of one group is damaged, or the power supply is disconnected, and then the LED lights are damaged.

Because a light like LED, if it is a strip of light, it will not only be half bright.

If it's broken by half, the zero half won't light up.

Check if it is two sets of lights itself, if so, the power adapter of one group is damaged, or the power supply is disconnected, and then the LED lights are damaged. Because a light like LED, if it is a strip of light, it will not only be half bright. If it's broken by half, the zero half won't light up.

In this case, most of the two groups of LEDs in series are connected in parallel, sharing a power supply unique fault phenomenon, as long as one of the LEDs in series has an open-circuit fault, the series chain will all be not lit. The LEDs should be measured one by one in the unlit half, and after finding the damaged LED and replacing it, the lamp can be repaired.

Depending on the design of the circuit in the light, the bright half can be the circuit design is divided into two halves in parallel by two groups, and the LEDs of each group are connected in series, if one or more LEDs in a group are burned out, this group will not light up only the other half; It can also be that the circuit power supply is designed to supply two halves of independent power supply to two groups independently, and only the other half is bright if one half of the power supply fails

Half of it is on and half of it is not lit, it may be because the LED itself is burned out, or the power supply of the part is abnormal. The voltage of the mall is AC 220V, which is relatively stable and will not be affected!

LEDs are connected in series, and the question is where they are in the middle and not in the light. The treatment method is that the contact is poor, not enough contact, so the light is not sufficient. It was half-bright during the day and full at night.

Hello dear, there is a light that is not on, the relevant reasons and deal with the digging rubber letter method are as follows. First, the light bulb of the vehicle is damaged, and the bulb needs to be checked first, and if there is a problem, it needs to be replaced. The second is that there is a problem with the relevant bulb base, and you need to check the headlight plug and bulb base.

The third is the problem of the relevant fuse, which leads to the need to check the relevant fuse accordingly for this phenomenon. Hello, I wish you a happy family, if necessary, you can continue to consult, I will always wait for your reply I wish you good luck, everything goes well, and a happy life! Kiss kiss kiss.

Two low beams suddenly stopped, probably because of the following:1. The bulb itself is broken (e.g. the filament burns out).

2.The fuse blew. 3.

There is a problem with the relay. 4.There is a problem with the wiring of the low beam.

5.There is a problem with the headlamp assembly. If the low beam and high beam are the same bulb, they are usually split into two groups of filaments.

If the low beam is not on and the high beam is on, it is likely that the low beam filament is burned out. The distance between the low beam and the local front cavity is about 30-40 meters. According to the experiment, when driving at a speed of 55 kilometers per hour at night, it was found that the car stopped immediately, and the parking distance was just 30 meters.

That is, when such a condition is detected within the irradiance range of the low beam, the vehicle stops immediately, and there is no gap between the vehicle and the object. Of course, this is the case when the car is in good condition, the road conditions are good, and the driver reacts well. If the speed of the vehicle is higher than this, the vehicle condition and road conditions are poor, and the driver has a long fatigue reaction time, and the result is obvious.

Always control your speed when driving at night. Moderate acceleration when using high beams on flat, wide roads with good visibility; In case of complex conditions, such as uneven roads, turns, bridges, narrow roads or intersection subgrade stool openings, etc. The vehicle should slow down, and the speed is usually controlled within 40 km/h.

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