How to fix the vertical line on the LCD screen:
1. Vertical black bar failure
Vertical black bars appear on the LCD screen, which should be caused by a failure of the logic board or a COF line driven by the address. At this time, the COF line should be reinstalled. After installation, the vertical line failure of the LCD screen will be solved.
LCD
2. Vertical white screen failure
The LCD screen has a vertical white screen failure, which may be caused by a problem with the TV motherboard. At this time, first check whether the connection line from the motherboard signal output to the screen is bad. If there is such a problem, you can try to replace the cable or the screen.
3. Malfunction of vertical stripes
It is found that the LCD screen has a vertical streak fault, and you should pay attention to check the motherboard signal output to the connector part of the screen to see if there is a short circuit in the circuit. If this is the case, the LCD screen should be replaced.
