Four types of hdmi grabber tests (hdmi-cec, rainbow signal) - Hardware Support - Hyperion-Project Forum
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Amazon.com: Generic HDMI CEC Blocker Adapter, 4K60Hz/18Gbps, Supports Top Boxes, Apple TV, PS4, Xbox, Blu-ray Players, 1 Year Warranty : Electronics
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Amazon.com: Ensigear HDMI CEC Blocker hdmi cec Interceptor. The CEC Function can be manually Turned on or Off (pin 13) for Devices Connected to HDMI Cables Through The CEC Adapter.¡¾2pcs¡¿ : Electronics
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What is HDMI CEC in your TV, Projector, Game Console, Blu-Ray disc players & AV Receivers? - YouTube
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