: The system is designed to operate within an input voltage range of 128V - 180V . Troubleshooting & Maintenance

The TV repeatedly turns on, displays a logo, and shuts off again.

The firmware resides on the board's data chips (EEPROM/Flash memory). For the firmware to "work" or be updated, specific technical procedures are required:

The indicator light is red, but the TV refuses to respond to the remote or physical buttons.