LG TV C1 Oled Black Screen Sound Working
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
85%
CONF
|
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.
|
|
|
10%
CONF
|
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
|
|
|
5%
CONF
|
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
|
DIY Repair Guide
Watch exactly how to replace the Main Board.
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.