Common faults of LED display screen; detailed problems of LED display system

Processing flow for the problems of led video wall and its system
1. It is determined whether the display screen is synchronous or asynchronous; the display of synchronous display screen depends on the display setting, while the asynchronous display screen does not depend on the display setting;
2. Determine whether the display screen is partial display problem or whole screen display problem;
If the local display is abnormal, the communication problems can be eliminated. Generally, it can be determined that the display hardware is faulty,
There are many possible reasons for the abnormal display of the whole screen
For the synchronous display, you should confirm whether the display settings are changed, whether the communication is normal, whether the transmission is normal, and then whether the reception is normal;
For asynchronous display screen, first of all, you should confirm whether the parameters of the display screen, such as hardware address, width, height and IP, are changed. If these parameters are correct, then test whether the communication is normal, and finally determine whether the display screen control is normal
Display unit board interface:
The display screen is composed of one display unit board, and the signal is transmitted by flat cable.
reform
In order to save customers’ investment, we can provide transformation and update services for customers’ existing LED displays. According to the situation of customer display screen, it can be roughly divided into the following three types:
1. Same display unit board interface
The interface of display unit board of many manufacturers is not very standard. If the interface of customer display unit board is the same as the interface mentioned above, we can upgrade the system, such as text screen, low gray level video screen and high gray level video screen. This method has low cost and quick effect.
2. Display unit board interface
If the interface arrangement of the customer display unit board is not exactly the same as the standard interface listed above, but the number and type of signals are the same, the display screen can also be upgraded, and the cost is slightly higher than that in the first case.
3. Completely different display unit board interface
The interface of the original display unit board of the customer is not exactly the same as that mentioned above. In this case, the cost of transformation is relatively large. In addition to the LED module and some IC reserved, other such as PCB board, system, etc., all need to be replaced, the cost is high.