EBT66453902 LG Main Board for OLED77CXAUA

LG EBT66453902 OLED TV main board, marked BUSWLJR, for OLED77CXAUA and OLED77CXPUA. A matching main board may help with picture, sound, smart TV, or HDMI issues when the original board is confirmed faulty. Match the identifiers on your original board before ordering.

Specifications & Board Identifiers

• Part number: EBT66453902
• Board number: BUSWLJR
• Product type: OLED TV main board
• Compatible TV models: OLED77CXAUA, OLED77CXPUA

Common TV Symptoms Fixed

A faulty main board can be associated with no picture, no sound, smart features not working, or HDMI inputs not responding. These symptoms can have other causes, so diagnose your TV before replacing the board.

Fitment & Ordering Guidelines

Check the white-sticker part number EBT66453902, PCB/board number BUSWLJR, complete TV model suffix, and any version shown on your original part or TV sticker. Do not order on model number alone. Disconnect the TV from power before servicing, follow appropriate electrical safety precautions, and handle the board with ESD protection.

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