Seven Common Sense Of Using LED Display Control Card?

Publisher: Supplier of LED Display Time: 2017-09-27 14:30 Views: 2026

With the rapid development of the LED industry, the demand for the LED display control card market is also increasing, and the wireless LED control card can well meet the needs of customers in the unified management and cluster delivery market. For example, community publicity LED screens, car screens, government projects, mobile, telecommunications, and bank door head screens, are installed in batches, are easy to manage, and reach a state that does not require maintenance. This is the best choice for users. In order to avoid unnecessary losses when using the control card, the user should pay attention to the following points:
 

 
   

1. Please keep the control card working in a dry, relatively stable environment. Excessive temperature, humidity, and dusty environment are extremely unfavorable to the control card.

 

2. It is strictly forbidden to plug and unplug the serial port without power failure, so as not to damage the serial port of the computer and the serial port of the control card due to improper operation.

 

3. It is strictly forbidden to adjust the input voltage of the control card when the system is working with power, so as to avoid damage to the computer serial port and the control card serial port due to improper adjustment and excessive voltage. The normal working voltage of the control card is 5V. When adjusting the power supply voltage, you should remove the control card and use a multimeter to measure and adjust slowly.

 

4. It is strictly forbidden to short-circuit the ground terminal of the control card with the display frame, otherwise, once static electricity accumulates on the display frame, it is very easy to damage the computer serial port and the control card serial port, resulting in unstable communication, and the control card and the screen body will be burned when the static electricity is serious. On the display unit. Therefore, when the outdoor screen or the communication distance is long, it is recommended that the user must use a serial isolator to avoid damage to the computer serial port and the control card serial port due to harsh environments such as ground loops, surges, induced lightning strikes, and hot plugging.

 

5. The correct connection between the control card and the computer serial port must be ensured to avoid damage to the control card serial port and the computer serial port due to incorrect input signals.

 

6. Do not connect the control card to the unit board. Directly lead to the switching power supply as much as possible, the voltage of the unit board is extremely unstable during the working process. It will cause the control card to be fast and slow, severely unable to communicate or program runaway, and need to be repaired, especially the U disk control card, in the case of unstable voltage, it may not be able to read the disk or read the disk error.

  

Seven, indoors, 16-scan unit boards should not be connected to the whole screen for debugging. Many indoor single-color or dual-color, or even full-color, and then directly connect to the control card and power on without debugging, which may burn out a large area of the scan driver 4953 chip behind the unit board. . Please connect only one unit board for debugging, unplug the power after debugging, and then connect the control card.

 

The LED display control card is the core device of the product, and it is very necessary to master the common sense of using the above control card.