: Detailed methods for self-testing PSU boards with or without 3.5V output pins.

: Includes COF (Chip on Flex) boardview photos, part numbers, and T-CON schematic diagrams.

: Instructions on how to modify LED driver output current to extend the life of backlight LED strips and bypass inverter IC protection during troubleshooting.

For those without immediate access to the full PDF, common issues can often be addressed with these standard troubleshooting steps:

: A collection of login methods for Factory Mode across various smart TV mainboards. Troubleshooting Common Smart TV Symptoms