If your Samsung 55-inch 4K UHD Smart LED TV is experiencing operational issues such as no video, no audio, or power problems, the main PCB assembly (BN94-13233B) might be the culprit. This genuine Samsung part is essential for restoring your device's optimal performance. Replacing this component requires technical skill, so proceed only if you are comfortable with electronics.

Check your TV's model number to confirm compatibility before purchasing.