Reasons and solutions for the unstable and always flashing TV screen
1, first check whether the power supply voltage of the TV is stable, instability will cause flicker. 2. Check whether there is any problem with the signal source input, such as whether the video input cable or CCTV antenna is poorly connected, whether the signal source problem is normal (you can test and switch to other programs), if there is a DVD player at home, you can test the signal source problem. 3. When none of the above methods can be solved, it is usually caused by TV hardware failure, such as screen failure or cable failure, internal circuit failure, motherboard and component failure, etc., it is recommended to contact the TV after-sales service for maintenance.
If the power supply is under-voltage or insufficient power supply, install a power supply regulator. The TV resolution problem needs to be reset. There is slight electromagnetic interference around the TV. Change the position of the TV. The refresh rate of the TV is too low. Adjust the refresh rate to above 75HZ. There is a problem with the internal circuit of the TV. If there is an internal problem, it is recommended to contact the brand’s after-sales maintenance department and find a professional maintenance person for inspection and maintenance. Television is a machine that uses electrical methods to transmit optical information based on the persistence of human eyes and visual psychology. The basic system of a TV is composed of three parts: camera, transmission and display.