What (no picture, vertical lines, etc.) are you seeing?

For technicians, the IN518 is a common point of failure in Innolux and Sony Smart TV panels. When these ICs fail, the panel may lose its ability to polarize crystals, resulting in a blank screen. Reference documents such as the IN518 Pinout Diagram on Scribd or specialized T-CON schematics are vital for identifying voltage drops at specific pins. Inx In518 Ic Pinout Diagram TOP | PDF - Scribd