SAMSUNG BN44-00985B (BN4400985B) LED Driver Board

Replace a failed LED driver / power supply board in your Samsung TV with the BN44-00985B (BN4400985B). This board is engineered for Samsung 65" QLED and UHD models including the ST65E141K1 and QN65Q80RAFXZA. Board number L65S8NC_RSM. Common fixes include no backlight, flickering, dim picture, and power failure symptoms.

Specifications & Board Identifiers

• Part Number: BN44-00985B (BN4400985B)
• PBA / Board Number: L65S8NC_RSM
• Compatible Models: ST65E141K1, QN65Q80RAFXZA
• Supported Version: Check white sticker on your board to confirm version match
• Product Type: LED Driver Board / Power Supply

Common TV Symptoms Fixed

• No Picture / Black Screen: TV powers on but the screen stays dark or backlight does not illuminate
• Power Issues: TV fails to turn on, shuts off unexpectedly, or cycles on and off
• Flickering / Dim Display: Backlight flickers, pulsates, or is dimmer than normal
• Partial Backlight Failure: Some areas of the screen are dark or the image is uneven

Fitment & Ordering Guidelines

• Verify the part number on the white barcode sticker on your original board matches BN44-00985B
• Confirm the PCB board number (L65S8NC_RSM) matches your original board
• Confirm your TV model suffix and version code match before ordering
• Basic electronics experience and proper anti-static precautions are recommended for installation

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