EBT67563903 LG Main Board for OLED77B3AUA

The EBT67563903 (EBT67563903) is a genuine OEM LG OLED TV Main Board compatible with the OLED77B3AUA television, version DUSQLJR. The main board manages video processing, Smart TV functions, and communication between internal components. Replacing it may help resolve no-picture, no-sound, power-on, or Smart TV connectivity problems.

Specifications & Board Identifiers

• Part Number: EBT67563903 (EBT67563903)
• PBA / Board Numbers: Not provided in the current product data
• Compatible Models: OLED77B3AUA
• Supported Version: DUSQLJR — check the version code on your original board to confirm
• Product Type: LG OLED TV Main Board

Common TV Symptoms Fixed

• No Picture / Black Screen: TV powers on but displays no image or shows a blank screen
• Power Issues: TV will not start, shuts down unexpectedly, or fails to complete startup
• Audio / Input Failure: No sound, HDMI inputs are not recognized, or connected devices do not respond correctly
• Smart TV / Connectivity Errors: Smart features fail to load or the TV has communication problems between internal components

Fitment & Ordering Guidelines

• Verify the part number and PCB number on your original board match exactly
• Confirm your OLED77B3AUA model and DUSQLJR version code match before ordering
• Basic electronics experience is recommended. Observe proper ESD and static-safety precautions during installation

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