Troubleshooting Tips:
A. Not working / No Audio (The audio is abnormal)
1. Check whether the "SPDIF" light is on.
2. Use standard hdmi2.0 cable(14+1) AWG26 and not exceed 5m.
3. Lower the resolution of your input source.
4. Set the audio format to PCM of your input source, and switch the audio mode on product to "2.0".
B. No Video / Picture discoloration (The picture is abnormal)
1. Connect your input source to output device directly---Turn on the image settings---Set the image output format to RGB of your input source.
2. Set the resolution of the input source to fixed resolution, like 1080P.
3. Finally connect our product to have a try.
C. No sound from "SPDIF" port
1. Set the audio format to PCM of your input source.
2. Switch the audio mode on product to " 2.0 " to have a try.
D. There is audio, but there will be hissing sound.
Noise is generally interference.
1. Change an hdmi cable with a magnetic ring or keep it away from wireless devices such as routers.
2. The power supply or hdmi cable is unstable, or the power amplifier speaker is very sensitive to current, we recommend that you use another pair of headphones to have a try.
3. Maybe the audio format is not supported. We suggest you set the audio format to PCM of your input source.