TFT LCD screen has four major parts: computer control part, display drive matrix, LCD display array, and power supply.
Among the TFT LCD screen repairs, there are more problems:
1. Interface problem. Phenomenon: The computer information cannot be displayed, check the cable
2. Power supply problem. The LCD screen uses a low-voltage high-current power supply, which is not much different from an ordinary DC power supply
3. Drive problems. If there is no display in each row or column, it is the corresponding drive circuit (chip) problem, just replace it.
4. Display problems. Long-term use of the LCD screen may be damaged and aging, just repair and replace it.
TFT LCD screen repair common problem handling process-diagnosis process:
1. Determine whether your LCD screen is a synchronous display or an asynchronous display; the display of the synchronous display depends on the setting of the display, and the asynchronous display does not depend on the setting of the display;
2, determine whether your LCD screen is a partial display problem or the entire screen has a problem;
Partial display abnormality can eliminate communication problems. Generally, it can be determined that the display hardware is malfunctioning. You should contact us immediately to prevent the malfunction from expanding;
There are many possible reasons for the abnormal display of the whole screen:
For the synchronized LCD screen, 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
