1.1 No Sound when playing
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Please replace other audio sources to check whether there is sound, if so, it may be that the source audio format does not support it.
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If it doesn't work, please change to another connection to check if there is sound, if so, there may be a problem with the connection cable, please replace it with another connection cable. If there is still no sound after replacing the connection cable, it may be a projector interface problem and needs to be replaced.
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When connecting the computer to the projector via HDMI cable, the computer may disable the display audio, resulting in no sound output from the projector, you can re-open Settings --- Management --- Output Devices --- Display Audio
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If it doesn't work, there may be a problem with the projector speaker or audio module, you need to replace it.
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U0320 chip supports audio and video:
1.2 The Sound is low when playing
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Check if the volume of the projector or input device is muted, make sure the volume is greater than 50 or more.
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If it does not work, please replace another source with a higher volume and test again.
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If it doesn't work, check again if the interface connection is loose.
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If it does not work, replace another connection cable to see if the sound has improved.
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If it does not work, please replace the other connection, if the sound has improved, there may be a problem with the input device.
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If it does not work, there may be a problem with the audio module or speaker, need replace the projector.
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