When a common fault occurs in the LCD splicing wall, everyone should immediately turn off the switching power supply and terminate all work, and there is no need to blindly follow the trend to disassemble machinery and equipment for maintenance. Further destruction. I suggest that you can refer to the following methods to carry out the inventory. If you can’t handle it, you should find the relevant professional and technical personnel, after-sales service technical professional maintenance personnel. If the problems caused by blindly following the trend of the maintenance are not covered by the warranty, so be cautious .
(1) The LCD splicing wall is still working normally, but the indicator light is off
1. Check whether the power socket on the bottom plate of the indicator light is loose or plugged in the wrong way;
2. Is the indicator light damaged?
(2) When the LCD screen is not activated, the indicator light is off
1. Is the power plug damaged?
2. Is the switching power supply turned on and connected to the power supply;
3. Whether the main power switch is damaged;
4. Is the switch power socket switch loose?
(3) The patchwork module board will not be manipulated
1. Check whether the detailed address setting of the module board is appropriate;
2. Then independently manipulate the module board to check whether it can be manipulated;
3. Are there any problems in contact between the module board and the bottom plate;
(4) Patchwork module board VGA/DVI without input/output:
1. Whether the LCD splicing screen board is well connected with the video signal end socket;
2. Check if it is a problem with the VGA/DVI cable, remove and replace a VGA to DVI cable for testing;
3. Whether the input data signal exceeds the input category of this product.
(5) All LCD splicing walls will not be manipulated
1. Check if the port settings of the LCD splicing screen mobile phone software are appropriate;
2. Check whether the electrode connection line is not very good, and whether it touches well with the socket on the communication board and the computer.
3. Check if the serial port communication between the computer and the control board is not good
The above is the more common problem in the application of LCD splicing walls. According to the above methods, check one by one, and find the existing problems, and treat them symptomatically.
