Maintenance knowledge about TFT LCD screen
Oct 20, 2022| Maintenance knowledge of TFT LCD screen:
The TFT liquid crystal display has four parts: computer control part, display driving matrix, liquid crystal display array and power supply.
1. Display problems: The LCD screen may be damaged and aged after long-term use, and it can be repaired and replaced.
2. Power supply problem: tft LCD screen adopts low voltage and high current power supply, which is not much different from ordinary DC power supply.
3. Interface problem: Phenomenon: Computer information cannot be displayed. Check cables.
4. Driver problem: each row and each column are not displayed, which is the problem of the corresponding driver circuit (chip) and can be replaced.
There may be many reasons why the whole screen is abnormal:
For the asynchronous LCD screen, first confirm whether the hardware address, width, height, IP and other parameters of the display screen have changed. If these parameters are correct, then test whether the communication is normal, and confirm whether the LCD screen control is normal after the end.
For synchronizing the LCD screen, you need to confirm whether the settings of the display are changed, whether the communication is normal, whether the transmission is normal, and then whether the receiving is normal.