Samsung BN44-01040B (BN4401040B) LED Driver Board - QN85Q80TAFXZA QN85Q80AAFXZA

The Samsung BN44-01040B (BN4401040B) is an OEM LED Driver Board compatible with Samsung 85" QLED TVs including the QN85Q80TAFXZA, QN85Q8DTAFXZA, and QN85Q80AAFXZA. This board resolves LED backlighting failures, dim screen, and flickering display issues. Board numbers BN4401040B and L85S8NC_TDY. Replaces part numbers BN44-01040B and BN4401040B.

Specifications & Board Identifiers

• Part Number: BN44-01040B (BN4401040B)
• PBA / Board Numbers: BN4401040B | L85S8NC_TDY
• Compatible Models: QN85Q80TAFXZA, QN85Q8DTAFXZA, QN85Q80AAFXZA
• Supported Version: QN85Q80TAFXZA: AC02, CC03 | QN85Q80AAFXZA: CC03 — check white sticker on your board to confirm version match
• Product Type: LED Driver Board

Common TV Symptoms Fixed

• No Picture / Black Screen: TV powers on but display stays dark or backlight fails to illuminate.
• Dim or Flickering Backlight: Uneven brightness, flickering, or partial backlight zones not working.
• Power Issues: TV shuts off unexpectedly or fails to maintain stable power to the display panel.
• Audio / Input Failure: TV has sound but no image, or inputs are unresponsive due to driver board failure.

Fitment & Ordering Guidelines

• Verify the white sticker part number on your existing board matches BN44-01040B or BN4401040B before ordering.
• Confirm your TV model suffix and version code match — check the label on the back of your TV.
• Basic electronics experience is recommended for installation.
• Looking for other parts for this TV? Search QN85Q80TAFXZA compatible parts

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