SONOS BEAM (GEN 2) No Sound
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
85%
CONF
|
Ultra High Speed HDMI 2.1 Cable
The eARC protocol requires high-bandwidth signal integrity on the Discovery and Control pins of the HDMI connector. A degraded cable or one that does not meet HDMI 2.1 specifications can cause intermittent or total loss of the handshake, preventing the TV from routing the digital audio bitstream to the soundbar.
|
|
|
15%
CONF
|
Main Logic Board
If cable replacement and protocol resets fail, the root cause is typically the failure of the HDMI controller IC on the internal PCBA. This component manages the HDCP (High-bandwidth Digital Content Protection) encryption and the digital-to-analog conversion path; failure here results in a device that remains network-accessible but cannot process external audio inputs.
|
DIY Repair Guide
Watch exactly how to replace the Ultra High Speed HDMI 2.1 Cable.
// 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.