Corrupted SPI Flash firmware, or failure of a secondary DC-DC regulator.
Blown fuse, failed bridge rectifier, or shorted main switching MOSFET. Tp.v56.pb801 Schematic Diagram Pdf
If your TV is dead or malfunctioning, use the diagram to track down these frequent failure points: No Power (Dead Board) Check the main AC fuse. Corrupted SPI Flash firmware, or failure of a