SONY BRAVIA XR OLED General Troubleshooting
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85%
CONF
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Main Logic Board (A-Board)
The Main Logic Board contains the System-on-Chip (SoC) and the HDMI controller responsible for the A/V Sync metadata protocol. A failure in this component prevents the TV from calculating the differential between video processing latency and audio output timing. Replacing this board restores the hardware-level capability to buffer audio signals to match the OLED's high-latency image processing pipeline.
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CHECK PRICE |
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15%
CONF
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Ultra High Speed HDMI 2.1 Cable
Synchronization requires the 'Auto Lip-Sync' feature, which is a mandatory part of the HDMI 2.1/eARC specification. If the physical interconnect lacks the required bandwidth or the specific data channel for eARC metadata, the TV cannot communicate latency values to the soundbar. This specific cable ensures the hardware handshake for temporal alignment is physically supported.
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CHECK PRICE |
DIY Repair Guide
Watch exactly how to replace the Main Logic Board (A-Board).