With the TV off, disconnect the flat ribbon cable (FFC) running from the left side of the T-CON board to the panel.
Use a multimeter to verify these standard test points on the T-Con board: 12V (Main power input). VDD / VCC: 3.3V (Logic power). VGH (Von): 21V to 30V. VGL (Voff): -5V to -8V. AVDD: ~15V to 17V. 3. Advanced Repair Techniques ltf320ap11 panel repair
To repair a Samsung LTF320AP11 LCD panel, you must address internal glass shorts within its amorphous silicon gate (ASG) driver circuits, which are notorious for causing screen distortion. With the TV off, disconnect the flat ribbon