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LG EBT66634903 (EBT66634903) OLED TV Main Board

• Part Number: EBT66634903 (EBT66634903)
• Board Number(s): EAX69532304(1.0)
• Product Type: LED TV Main Board
• Compatible TV Model(s):

OLED77C1PUB BUSWLJR, OLED77C1AUB DUSPLJR

Product Description

This LG EBT66634903 main board serves as the central processing unit for your OLED television, controlling all essential functions including picture processing, audio output, input selection, and smart TV features. When your TV displays a blank screen, shows no picture but has sound, experiences HDMI connectivity issues, or fails to respond to remote commands, a faulty main board is often the root cause. This genuine LG replacement part restores full functionality to your television, resolving issues with picture quality, input switching, app performance, and overall system responsiveness.

Key Features

• Genuine LG replacement part ensuring perfect compatibility and reliability
• Resolves common issues including no picture, HDMI problems, and smart TV malfunctions
• Compatible with LG OLED77C1PUB and OLED77C1AUB 77-inch OLED models
• Controls all critical TV functions including video processing and smart features
• Board number EAX69532304(1.0) for precise identification and compatibility verification

Important Notes

• Always unplug your television and discharge capacitors before beginning any repair work
• Verify your TV model number and version match exactly before ordering
• Partial part number 65689421 is located on the white barcode label on the board
• Take photos of all cable connections and ribbon cable orientations before disconnecting the old board
• Main board replacement requires technical expertise - consult a qualified technician if unsure
• Handle the board by its edges, avoid touching components, and use an anti-static wrist strap