LG TV C1 Oled Black Screen Sound Working
| CONF | DIAGNOSIS | PART MATCH | ACTION |
|---|---|---|---|
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85%
CONF
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Main Board
The Main Board handles video processing and the timing signal output to the OLED panel. A failure in the video signal processor or the output circuitry can result in a 'Black Screen' while the audio processing chip continues to function normally. Replacing this board restores the handshake and video data flow to the panel.
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CHECK PRICE |
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10%
CONF
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Power Supply Unit (PSU)
The PSU provides the specific high-voltage rails required to drive the OLED pixels. If the low-voltage rails (powering audio and logic) are functional but the panel-driving voltage rail fails, the screen will remain black while the TV appears to operate normally.
SKU: EAY65689423
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CHECK PRICE |
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5%
CONF
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Internal Ribbon Cable Set (LVDS/FFC)
Corrosion or thermal expansion can cause the high-density ribbon cables between the Main Board and the panel to lose contact. If the video data lanes are disconnected but the control lanes are intact, the panel may fail to initialize an image.
SKU: EAD65830101
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CHECK PRICE |
DIY Repair Guide
Watch exactly how to replace the Main Board.