Samsung BN94-18417P Main Board

The BN94-18417P (BN9418417P) Samsung Main Board is the central processing unit for the Samsung QN77S90DDFXZA OLED TV — replacing it can resolve no picture/black screen, power failures, audio/input issues, and Smart Hub or Wi-Fi errors. Verify the version code sticker on your board before ordering.

Specifications & Board Identifiers

• Part Number: BN94-18417P (BN9418417P)
• PBA / Board Numbers: BN97-21185B
• Compatible Models: QN77S90DDFXZA
• Supported Version: Check white sticker on your board to confirm version match
• Product Type: Samsung OLED TV Main Board

Common TV Symptoms Fixed

• No Picture / Black Screen: TV powers on but display remains dark or shows no image
• Power Issues: TV won't turn on, shuts off unexpectedly, or cycles on and off
• Audio / Input Failure: No sound output, HDMI inputs not recognized, remote unresponsive
• Smart Hub / Wi-Fi Errors: Apps crash, Wi-Fi won't connect, Smart Hub fails to load

Fitment & Ordering Guidelines

• Verify the white sticker part number and PCB number match your original board exactly
• Confirm your TV model suffix and version code match before ordering
• Basic electronics experience recommended for installation

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