SONY TV A80K OLED BLACK SCREEN SOUND WORKING General Troubleshooting
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
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86%
CONF
|
T-CON Board
The T-CON board translates the Main Board's video signal for the OLED panel. A failure here results in a '5-blink' error code and a black screen while the audio processor on the main board continues to function. This is the most common replaceable electronic component for this specific failure mode.
|
|
|
9%
CONF
|
Main Board (A-Board)
The Main Board houses the XR Cognitive Processor; if the video processing sub-block fails while the audio-out path remains intact, the screen will remain black. This part is responsible for sending the startup handshake to the T-CON; without it, the panel will never initialize.
|
|
|
5%
CONF
|
LVDS/V-by-One Ribbon Cables
Physical connection failure between the Main Board and T-CON can cause signal dropouts. Oxidation on the pins or thermal expansion/contraction of the flex cables can result in a 'Black Screen, Sound OK' state due to a lost data handshake during the power-on sequence.
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DIY Repair Guide
Watch exactly how to replace the T-CON 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.