Samsung bn94-17446b Tv Main Pcb Assembly QN800BB

Product Description

The SAMSUNG bn94-17446b is a main PCB assembly designed to serve as the central processing unit of the QN800BB series television. The board processes incoming audio and video signals and coordinates communication between internal subsystems, including the display panel, audio circuitry, and input interfaces. Integrated circuits and firmware on the board decode digital inputs, manage user settings, and regulate signal outputs to connected components. Installation requires removal of the TV chassis and disconnection of all ribbon cables, signal harnesses, and peripheral module connectors before the board can be seated and secured to the internal frame.

This main PCB assembly is intended for use in Samsung QN800BB series televisions requiring replacement of a failed or damaged control board. Typical service scenarios include boards that have sustained power surge damage, failed firmware initialization, or exhibit signal processing faults such as no picture, no audio, or failure to power on. The assembly is installed directly into the main chassis and interfaces with the display, audio, and input subsystems through the existing wiring harnesses.

Key Features

• Functions as the central processing unit for audio and video signal management
• Interfaces with display panel, audio circuitry, and input modules via onboard connectors
• Firmware-driven decoding of digital inputs and regulation of component outputs
• Mounts directly to the internal TV chassis frame using the OEM mounting configuration
• Designed as a direct replacement for the original factory-installed main PCB

Compatibility

Designed as an OEM-style replacement main PCB assembly for Samsung QN800BB series televisions.

Installation Notes

Installation should be performed by a qualified electronics or appliance technician. Disconnect the television from AC power and allow capacitors to discharge before opening the chassis or handling the board. Use appropriate anti-static precautions when handling the PCB to prevent electrostatic discharge damage. Reconnect all ribbon cables, signal harnesses, and peripheral connectors fully and in the correct orientation before reassembling the chassis.