FAQ

The LED Display Does Not Work, the Processor is Working Properly and Malfunctions

1. The display has no power supply: check whether the power supply is normal

2. The display screen network cable is not connected properly: check and reconnect the network cable

3. The receiving card has no power supply or the power supply voltage is too low: make sure that the DC output power supply of the power supply has a voltage of 5V

The LED Display Does Not Work, No Input Signal from the Processor Troubleshooting

1. DVI or HDMI cable is not connected properly: check whether the DVI or HDMI cable connector is in close contact;

2. The copy or extended mode is not set in the control panel of the graphics card: reset the copy mode or extended mode;

3. Input signal source selection error: correctly set the corresponding signal source in the processor

Troubleshooting of the Whole Screen of the LED Display

1. The connection network cable or DVI/HDMI cable between the computer and the screen is too long: shorten the length of the network cable and DVI/HDMI;

2. The DVI/HDMI cable connecting the computer and the processor is damaged: replace it;

3. Computer graphics driver failure: reinstall the graphics driver or replace;

Each Display Unit of the Entire Display Shows the Same Content

The display connection file parameters were not sent: reset the parameters of sending the connection file.

The brightness of the LED display is very low, and the display image is blurred

The processor program error: set the minimum brightness value of the display monitor to be above 80.

Some Modules (blocks 1-6) Do Not Display Faults

1. Power protection or damage: check to confirm that the power supply is normal;

2. The AC power cord is in poor contact: reconnect the power cord;

3. Module and receiving card cable failure: unplug the cable or replace;

The Entire Cabinet of the LED Display Does Not Show Faults

1. The 220V power supply line is not connected properly: check the 220V wire;

2. Network cable transmission failure: re-plug or replace;

3. The receiving card is damaged: replace the receiving card;

4. The switching power supply is damaged: replace the power supply;

Troubleshooting of Shaking or Ghosting of the Entire Screen of the LED Display

1. Check the communication line between the computer and the large screen: re-plug or replace the communication line;

2. Check the DVI/HDMI cable of the processor: re-plug the DVI/HDMI cable to reinforce;

3. Processor failure resolution: restart the machine

Full color LED display screens are composed of the most modular led display panels, not only full color LED display screens, but also other conventional display screens. If there is a problem with the modular led display panels, it will directly lead to the display effect of the entire full color LED display, or even a black screen. Therefore, it is of vital importance to effectively distinguish the quality of the full color LED display unit board. How to distinguish the quality of the modular led display panels has also become an important issue that many buyers are concerned about. HTJ provides some suggestions for reference

1. IC Device

The brand of IC devices is quite important. What type of IC involves the amount, more or less used, will greatly affect the quality of the modular led display panels. In order to save costs and costs, a few LED display manufacturers will deliberately reduce the number of IC devices when producing cell boards, or use irregular IC devices of other brands, which will cause the panel to be unstable or even unable to work.

2. LED Lamp Beads

As for the good or bad of LED lamp beads, our naked eyes can not judge, only by long-term multiple tests can judge. For informal display manufacturers, the products will be powered on to check whether the display can work normally before leaving the factory, but they will not undergo a long-term aging test, because the long-term aging test will affect the manpower and material resources of the manufacturer. Before the product is shipped, HTJ will perform a lighting aging test for at least 3 days (24 hours uninterrupted) to ensure that each product can be delivered to the customer intact.

3. Welding Quality

Soldering refers to checking whether there are any missing components, mis-sticking, component pin burrs and short circuits on the patch, and checking whether the solder joints of the straight plug-in unit are smooth and round, whether the board surface is clean and tidy, and there is no missing solder. Also check the flatness of the luminous dot matrix and the consistency of the ink color.

4. LED Unit Board Material

In order to compete with more customers at low prices, modular led display panels manufacturers will use cheap flame-retardant paper board materials or single-sided fiberboard as the PCB circuit board for LED lights. If it is a ignorant person, it may not feel any difference, because it will not be any different when you first use it. However, after a few months of use, various problems such as moisture, ultraviolet damage, oxidation, oxidative fracture, etc. are prone to occur, which will easily lead to the scrap of the entire modular led display panels. The regular display unit board uses a double-sided full glass fiber PCB board. Although the cost is relatively higher, it is more safe for users in the future.

The glass curtain wall is a major modern architectural decoration, it decorates the city and makes the city more beautiful. The transparent glass led display used with the glass curtain wall is even more sought after by the market. Its high transparency, invisible installation, and excellent performance of green energy saving make it stand out from many display products. So, how to make the glass curtain wall LED display achieve better display effect?

First of All, Standardize Glass Design

  Glass is an important carrier for the installation of transparent led display screens, and its size and shape directly affect the display effect of the transparent glass led display screen. Irregular and peculiar glass when installing the display screen, not only the screen needs to be customized, it is difficult, but also the cost is high; the owner should try to use uniform size glass when designing the glass curtain wall of the shop and building, and reduce the use of special shapes. This can reduce the difficulty of installing the glass curtain wall LED display, reduce the keel, further improve the permeability, and make the screen display more transparent and beautiful.

Secondly, Choose the Right Resolution

  Definition is the resolution referred to in the industry, and it is also the loading point of the led display. The definition of the transparent glass led display is mainly affected by its screen area and pixel pitch. The larger the screen area, the smaller the pixel pitch, the higher the definition. The proprietor can choose the appropriate definition according to the actual audience range and viewing distance of the advertisement to achieve an economical and applicable effect.

Again, Brightness Adjustment

  Although the glass curtain wall LED display screen broadcasts advertising information, it is essentially a kind of indoor LED display screen and is installed in an indoor environment. Because outdoor advertising requires high brightness during the day and low brightness at night, brightness adjustment is very necessary at this time. The conventional glass curtain wall LED display screen also uses the light sensor and cooperates with the related software to adjust the brightness, so as to ensure the comfort of the tourists watching the screen, and then become interested in the product and increase sales.

Contact Info

Website: https://www.htj-led.com

Email: [email protected]

After the Indoor LED Display Screen controller is properly connected to the computer and the HUB distribution board and the display, you need to provide +5V power to the controller to make it work normally (at this time, do not directly connect to the 220V voltage).

At the moment of power-on, a bright line or “fuzzy screen” will appear on the display for a few seconds. This bright line or “fuzzy screen” is a normal test phenomenon and reminds the user that the display is about to start working normally. 3 E9 H9 d* X1 R5

Within 2 seconds, the phenomenon will be automatically eliminated, and the display will enter normal working status.

Shenzhen HTJLED Technology Co., Ltd. is a Chinese LED Display Manufacturer specializing in the production of, Indoor Fixed LED Display,Outdoor LED Display, Transparent LED Display, Outdoor Transparent LED display, Floor LED Display, and Rental LED Display. It is a professional display manufacturer integrating R&D, production, sales and service.

The company was established in 2009 and has more than ten years of experience in the production of display screens.

The company is located in Shenzhen, China, with a total area of 15,000 square meters, a production workshop of 10,000 square meters, and an office area of 2,000 square meters. The company has large-scale anti-static current water lines, SMD automatic surface mount equipment, wave soldering and other technical equipment. Relying on advanced management mode, strong technical research and development capabilities and abundant raw material resources, the company has carefully built a professional production platform. modern industry.

Contact Info

Website: https://www.htj-led.com

Email: [email protected]

For the Outdoor LED Display control system, the prompt “Please connect to the Outdoor LED Display controller” will appear after running for 20 minutes after installation. This is because the system has not detected the control system hardware during the test period. 7 G5 k$ r2 w: 9 D) L

At this time, please connect one end of the Outdoor LED display control system hardware you purchased to the computer, and the other end to the HUB distribution board. Connect the cable socket of the HUB distribution board to the interface of each unit of the Outdoor LED display. ‘C, v$ u& & {2 M

After the connection is completed, you can enter the “Settings Screen Parameters” in the “Settings” to set the relevant parameters, and then close and reopen the software after completion. At this time, the word “Connected successfully” will appear on the top of the software. At this point, the system has detected the display screen control system hardware and can be used normally without time limit. 

Shenzhen HTJLED Technology Co., Ltd. is a Chinese LED Display Manufacturer specializing in the production of indoor LED Display, Outdoor LED Display, Transparent LED Display, Outdoor Transparent LED display, Floor LED Display, and Rental LED Display. It is a professional display manufacturer integrating R&D, production, sales and service.

The company was established in 2009 and has more than ten years of experience in the production of display screens.

The company is located in Shenzhen, China, with a total area of 15,000 square meters, a production workshop of 10,000 square meters, and an office area of 2,000 square meters. The company has large-scale anti-static current water lines, SMD automatic surface mount equipment, wave soldering and other technical equipment. Relying on advanced management mode, strong technical research and development capabilities and abundant raw material resources, the company has carefully built a professional production platform. modern industry.

Contact Info

Website: https://www.htj-led.com

Email: [email protected]

A. Ensure that the control system hardware has been powered on correctly. (+5V)

B. Check and confirm that the serial cable used to connect to the controller is a straight-through cable, not a crossover cable.

C. Check and make sure that the serial port cable is intact and the two ends are not loose or falling off.

D. Compare the LED display control software and the control card you choose to select the correct product model, correct transmission method, correct serial port number, correct baud rate, and correctly set the control system hardware according to the dial switch diagram provided in the software. The address bit and baud rate on the. 2 [. x/ X2 b; g: A’X” Z; n

E. Check whether the jumper cap is loose or falling off; if the jumper cap is not loose, please make sure that the direction of the jumper cap is correct.

F. If it still fails to load after the above inspection and calibration, please use a multimeter to measure whether the serial port of the connected computer or control system hardware is damaged. To confirm whether it should be returned to the computer manufacturer or the control system hardware for testing.

Shenzhen HTJLED Technology Co., Ltd. is a Chinese LED Display Manufacturer specializing in the production of indoor LED Display, Outdoor LED Display, Transparent LED Display, Outdoor Transparent LED display, Floor LED Display, and Rental LED Display. It is a professional display manufacturer integrating R&D, production, sales and service.

The company was established in 2009 and has more than ten years of experience in the production of display screens.

The company is located in Shenzhen, China, with a total area of 15,000 square meters, a production workshop of 10,000 square meters, and an office area of 2,000 square meters. The company has large-scale anti-static current water lines, SMD automatic surface mount equipment, wave soldering and other technical equipment. Relying on advanced management mode, strong technical research and development capabilities and abundant raw material resources, the company has carefully built a professional production platform. modern industry.

Contact Info

Website: https://www.htj-led.com

Email: [email protected]

After the display controller is properly connected to the computer and the HUB distribution board and the display, you need to provide +5V power to the controller to make it work normally (at this time, do not directly connect to the 220V voltage). At the moment of power-on, a bright line or “fuzzy screen” will appear on the display for a few seconds. This bright line or “fuzzy screen” is a normal test phenomenon and reminds the user that the screen is about to work normally. 3 E9 H9 d* X1 R5 Within 2 seconds, the phenomenon will be automatically eliminated, and the display will enter normal working status.

Shenzhen HTJLED Technology Co., Ltd. is a Chinese LED Display Manufacturer specializing in the production of indoor LED Display, Outdoor LED Display, Transparent LED Display, Outdoor Transparent LED display, Floor LED Display, and Rental LED Display. It is a professional display manufacturer integrating R&D, production, sales and service.

The company was established in 2009 and has more than ten years of experience in the production of display screens.

The company is located in Shenzhen, China, with a total area of 15,000 square meters, a production workshop of 10,000 square meters, and an office area of 2,000 square meters. The company has large-scale anti-static current water lines, SMD automatic surface mount equipment, wave soldering and other technical equipment. Relying on advanced management mode, strong technical research and development capabilities and abundant raw material resources, the company has carefully built a professional production platform. modern industry.

Contact Info

Website: https://www.htj-led.com

Email: [email protected]