What is the problem with some of the lights next to the LED display when the words are on? 10

Two scenarios. One is that the bright spot next to the word is not fixed and walking around with the word, in this case, the control card is a little problematic, and then send the data to try.

The second situation is that the bright spot next to the word does not move with the word, it may appear on the whole screen, or it appears on a certain piece, if the whole screen has this kind of dot, it is a problem with the unit board, if a certain area appears, it is the problem of that area unit board.

In particular, the light next to it is horizontally bright, and the feeling of mirroring the normal word is that the single unit board is broken and broken! IC hangs.

There are many reasons for such a problem, first see if there is a problem with the later IC, and then there is a problem with the system. Generally, when the IC is burned, there will be more such phenomena as it will always turn on.

First of all, let's see if the whole screen is all or if there is only one or two pieces that have this problem.

If the whole screen is full, it may be that the control card or the software settings are incorrect!

If you have a few pieces, you can test them with a substitution method.

Change the cable first before changing the unit board.

Or swap the position of the unit board.

Short circuit. 1. IC short circuit.

2. Short circuit of the resistance.

3. The lamp foot is short-circuited.

If you know how to solder the iron, you will solder it yourself, and you will not mail it back to the manufacturer for repair, and you will be guaranteed.

If there is a problem with the program settings, you can reset it.

First of all, judge whether the power supply is damaged or not, and whether it can be used normally. Because one power supply controls several cell boards at the same time. You can measure whether the output voltage is in between. If it is not within this range, it is likely that the power supply is broken.

Then check if the control card is in normal use. Turn on the power first and see if the indicator light of the control card is on; If it is not lit, check whether there is 5V voltage power supply, whether the LED electronic screen can display the content, if the content can be displayed, it means that the control card display content function is good; Then use the control card software to find the control card, if it can be found, it means that the control card sends the content of the function is good; If you can't find it, check whether the communication cable is connected, if it is connected, it is likely that there is a problem with the card. As long as these two functions are good, the control card is good, otherwise the control card will have to be replaced.

Finally, see if the unit board is good. The signals of the LED display are all transmitted from one board to the input of another. Therefore, if there is a problem with one board, it will affect the board behind it. So you have to check whether the unit board is normal one by one.

Hello. This situation is due to a problem with the screen. The screen belongs to the capacitive screen. This screen is malfunctioning. If it does not affect the use. Replacement is not recommended. Hope.

It may be a circuit problem, the frame frame is not open, causing a bright line. It's also possible that the display is broken. It is recommended to ask a professional maintenance personnel to check the repair for reference.

Usually the reasons for half of the LED display are as follows, and the troubleshooting methods are as follows:

1. The line is loose.

1) 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 LED screen connected to the LED screen and the HUB distribution board connected to the main control card are tightly connected and plugged in backwards.

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 cause is a hardware failure or the problem cannot be identified, please contact your service provider for technical support.

The LED electronic advertising screen shows half of the words, and the general reason is the problem of power supply inside, it is powered by multiple groups of power supply to the display module, and one of the problems cannot be passed.

If the backlight is on, it should be that the LVDS line is loose;

If the backlight is not lit, it may be an internal hardware problem, such as the lamp line is not in good contact or broken, the power board hangs up, and the control circuit between the motherboard and the power board is wrong.

LED display (LED display) is a flat panel display, which is composed of small LED module panels, which is used to display various information such as text, images, video signals, etc. LED, Light Emitting Diode (Light Emitting Diode abbreviation). It is a display method that controls semiconductor light-emitting diodes.

Diodes made of compounds of gallium (Ga) and arsenic (As), phosphorus (P), nitrogen (N), and indium (In) can emit visible light when electrons and holes are recombined, so they can be used to make light-emitting diodes. It can be used as an indicator light in circuits and instruments, or as a text or digital display. GaAs diodes glow red, GaN diodes glow green, silicon carbide diodes glow yellow, and indium gallium nitrogen diodes glow blue.

The luminous color and luminous efficiency of LED are related to the materials and processes of making LED, the light ball is all blue light at the beginning, and then phosphor, according to the different needs of users, adjust out different light colors, widely used red, green, blue, yellow four. Due to the low working voltage of LED (only, it can actively emit light and has a certain brightness, and the brightness can be adjusted by voltage (or current), and it is also impact-resistant.

Summary. Secondly, we need to judge whether the power supply is good or not. If the power supply is broken, it will directly cause several boards to not light up or be abnormal at the same time, because one power supply controls several boards at the same time.

If the LED electronic display is not displayed or the display is not normal in several boards in the same small area, it should be considered whether the power supply is broken. The most direct detection method is to take the DC voltage of the 10,000 meter and measure whether the output voltage is in between. If this is not in this range, it is time to consider replacing the power supply.

Finally, we need to judge whether the LED unit board is good or not. The LED display signal is the input signal transmitted from the output header of one unit board to another board, so if there is a problem with one board, it will cause the whole row behind it to be unlit or abnormal. Therefore, when there are problems in a row of LED electronic displays, we should replace the board that is not normal at the beginning of this row, or jump this board directly with a long row of wires, and then see if the board behind it is displayed normally.

How to deal with the bright lines when the LED display is displayed.

Hello, I have seen your question and am sorting out the answer, please wait a while

First of all, let's judge whether the control card is good or not. Turn on the power first and see if the indicator light of the control card is on; If it is not lit, then check whether there is a 5V voltage power supply, whether the LED display can display the content, if the content can be displayed, it means that the control card display content function is good; Then use the control card software to find the control card, if you can find it, do the dust, it means that the control card sends pure Zen content with good function; If you can't find it, check whether the communication cable is connected, if it is connected, it is likely that there is a problem with the card. As long as these two functions are good, the LED control card is good, otherwise the control card will have to be replaced.

Secondly, we need to judge whether the power supply is good or not. If the power supply is broken, it will directly cause several boards to be unlit or abnormal at the same time, because one power supply controls several boards of Liang Chang at the same time. If the LED electronic display is in the same small area of several boards do not display or the display is not normal, it should be considered that the power supply is broken.

The most direct detection method is to take the DC voltage of the 10,000 meter and measure whether the output voltage is in between. If this is not in this range, it is time to consider replacing the power supply. Finally, we need to judge whether the LED unit board is good or not.

The LED display signal is the input signal that is transmitted from the output header of one unit board to the input signal of another board, so if there is a problem with one board, the mountain will cause the whole row behind it to be unlit or abnormal. Therefore, when there are problems in a row of LED electronic displays, we should replace the board that is not normal at the beginning of this row, or jump this board directly with a long row of wires, and then see if the board behind it is displayed normally.

What is the reason why the LED light is half on and half is not? Only the red dots appear on the board at the back.

The pro-LED lamp is half on and half is not on, which is usually caused by the fault of the lamp bead or circuit. Among them, the lamp bead failure may be the lamp bead aging, damage, or poor contact, while the circuit failure may be the power supply problem, the drive circuit problem, or the soldering problem, etc. For the board at the back, only the red dot appears, which may also be a part of the LED lamp beads or circuits that are faulty, and the light beads cannot be lit normally.

If only the red dot appears, it means that the fault part may be the LED lamp bead or the circuit related to it. The faulty part needs to be inspected and repaired, or the damaged lamp bead or circuit needs to be replaced to ensure that the LED lamp word is working properly.

What is the reason why the LED light is half on and half is not? Only the red dots appear on the board at the back.

Hello, dear. The LED light word is half on and half is not on, and only the red dot appears on the board at the back, which may be due to several reasons: 1

Lamp bead failure: It may be that the lamp bead is damaged or aged, resulting in the lamp bead not working properly. 2.

Driver circuit failure: The driving circuit of the LED lamp fails or the circuit components are damaged, and the power supply cannot be supplied normally, resulting in uneven light tease lines emitted by the LED lamp finger stool. 3.

Environmental impact: Surrounding environmental factors, such as too low or too high voltage, poor wire contact, etc., may also affect the normal operation of LED lights. In view of this situation, you can check the lamp beads first, and if you find that it is damaged or aging, it should be replaced in time.

If the lamp bead is normal, it is necessary to detect the driving circuit and the surrounding environment to ensure that the corresponding circuit and power supply are not faulty. If none of the above solutions solve the problem, you need to have a professional travel repair.