User Manual Q&AAnswer
Sep 08, 2025 - 02:42 AM
1. **Check Video Source:** Ensure that the video source device (connected to the HDMI IN port on the Transmitter) is powered on and sending a video signal. Verify that the INPUT LED on the Transmitter is lit, indicating a video signal input.
2. **Verify Connections:** Double-check all connections. Make sure the HDMI cables are securely connected to the correct ports on both the Transmitter and Receiver. Ensure the COAX OUT port on the Transmitter is connected to the COAX IN port on the Receiver using a single RG6 Copper coaxial cable.
3. **Audio Source Setting:** If you are using an external audio source connected to the LINE IN port on the Transmitter, ensure that the AUDIO DIP switch on the Transmitter is set to "LINE" for audio embedding. This ensures that audio is correctly routed to the HDMI OUT and AUDIO OUT ports.
4. **EDID Settings:** Check the EDID DIP switch settings on the Transmitter. Ensure that the correct EDID setting is selected based on your display device's resolution and audio capabilities. The default setting is to copy the Receiver's HDMI OUT port sink EDID.
5. **Power Supply:** Confirm that both the Transmitter and Receiver are receiving power from the provided DC 12V/1A power adapters. Check that the power adapters are plugged in correctly and delivering power.
6. **IR Control:** If you are using IR control, ensure that the IR Blaster and Receiver cables are connected properly to the respective ports on the Transmitter and Receiver. Test the IR functionality to verify if commands are being transmitted successfully.
7. **Firmware Update:** If all connections and settings are correct but you still face issues, consider checking for any firmware updates for the Extender. The SERVICE ports on both the Transmitter and Receiver allow for firmware updates if needed.
By following these troubleshooting steps, you should be able to identify and resolve any issues preventing the video signal from displaying on your connected device when using the KOA EDI HDC-ECB100S HDMI Over Coaxial Extender.
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