ACASIS Dual 4K HDMI Output 3.5mm Audio HDMI Audio Extractor

Technical troubleshooting can be carried out in the following ways:
1 Whether the HDMI cable is a standard cable that meets the HDMI certification, you can replace it with a short HDMI cable for connection.
2 The HDMI interface has poor contact and relatively large contact resistance. Since the product has many input and output ports, you can try other interfaces separately. If other ports are normal, you can wipe the HDMI interface with alcohol.
3 The product power supply is insufficient, resulting in a weak HDMI signal. You can connect an external power supply.
4 The video resolution is too high, causing serious signal distortion. You can lower the device resolution.