Experiencing connectivity issues with your Samsung 55-inch 1080p HDTV? The main PCB assembly (BN94-05656D) might be the culprit. This main board is central to your TV's function, containing all inputs and outputs for device connections. It's responsible for housing the processor and handling your TV's essential components. A failing board can cause your TV to not power on, or have issues with video or audio.

Check your device's model number for compatibility before purchasing.