EBT66453902 LG Main Board for OLED77CXAUA

Product Description

EBT66453902 (EBT66453902) LG OLED TV Main Board

• Part Number: EBT66453902 (EBT66453902)
• Board Number(s): BUSWLJR
• Product Type: OLED TV Main Board
• Compatible TV Model(s): See below

Compatible Models: OLED77CXAUA, OLED77CXPUA

This genuine LG main board (EBT66453902) serves as the central processing unit for your 77-inch LG CX series OLED television, controlling all essential functions including picture processing, audio output, smart TV features, and input/output connectivity. If your TV experiences issues such as no picture, no sound, failure to power on, smart features not working, or HDMI ports not responding, replacing this main board can restore full functionality to your television.

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Key Features

• Genuine LG OEM replacement part - guaranteed compatibility and reliability
• Controls all TV functions including picture processing and smart features
• Supports 4K OLED display with HDR processing capabilities
• Manages HDMI 2.1 inputs with gaming features (VRR, ALLM, eARC)
• Includes webOS smart platform processing
• Factory-tested for quality assurance

Important Notes

• Professional installation strongly recommended - requires technical expertise and proper ESD precautions
• Verify your TV model number and board number (BUSWLJR) match before ordering
• Disconnect TV from power and allow capacitors to discharge before servicing
• Take photos of all cable connections before disconnecting for easier reassembly
• Contact us if you need assistance confirming compatibility for your specific TV model