LG EBR41959901 Power Board for OLED77C4PUA

The LG EBR41959901 power supply board for OLED77C4PUA, version DUSQLJR, converts incoming AC power into the DC voltages used by the television. Board identifiers EAX699952034(1.0) and LGPS77C3-23OP help identify the correct replacement for diagnosed no-power, startup, or intermittent-power faults.

Specifications & Board Identifiers

• Part Number: EBR41959901
• Board Number(s): EAX699952034(1.0) | LGPS77C3-23OP
• Brand: LG
• Product Type: Power Supply Board
• Compatible TV Model: OLED77C4PUA
• Supported Version: DUSQLJR. Match the TV label and white-sticker part number before ordering; model alone does not establish compatibility.
• Listed Substitute Part: EBR42163701

Common TV Symptoms Fixed

When diagnosis confirms a faulty power supply board, replacement may address:

• No power or no power-indicator light.
• Failure to start.
• Intermittent power or operation.

These symptoms can have other causes; confirm the failed component before ordering.

Fitment & Ordering Guidelines

• Match EBR41959901 on the white barcode sticker, the PCB/board identifiers, the full model suffix, and version DUSQLJR to your original unit.
• For the listed substitute EBR42163701, verify the same model and version requirements before ordering.
• Unplug the TV before service. Power-supply capacitors can retain hazardous voltage; use a qualified technician for safe discharge and installation.
• Use ESD precautions, handle the board by its edges, and photograph connections before disassembly to help with reassembly.

OLED77C4PUA compatible parts

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