Disconnect the cable running from the power supply board to the main board, then plug the TV into AC power. On many Samsung models, this forces the backlights to turn on automatically. If they do, the power supply and backlights are working, indicating a faulty main board.
Unplug one ribbon cable at a time and turn on the television. Observe which half of the screen displays a clean white or clear image. The side that distorts or turns black when connected contains the short circuit. v7 0 smart oled led lcd tv repair tips pdf free 2021
By following these repair tips and using the free PDF guide, you'll be able to troubleshoot and repair common issues with your V7 0 Smart OLED LED LCD TV efficiently. Happy repairing! Disconnect the cable running from the power supply