Xmint
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]Users of projectors will create exclusive private theaters in their own homes. Private theaters will inevitably require projection screens and exclusive audio equipment. Outputting the projector ’s audio to the audio will require multiple debugging, even after the debugging is completed, it will still be used There is another failure during the process, don't rush to find repair after the failure, you can check the failure yourself in advance. The following troubleshooting tips for connecting the projector to the audio without sound are shared with netizens
If there is no sound from the audio system, first confirm whether the device has turned on the mute mode . If the mute is turned on, simply cancel it. If the mute is not turned on, you need to separately check the audio of each port of AV, VGA, HDMI to see if there is sound . If one or two groups of no sound appear in the investigation , check the input circuit of this group of audio .
If there is no sound from the AV, VGA, and HDMI ports, you need to check the audio power supply voltage . The general audio power supply voltage is 1.2V to 3.3V.
If the measured voltage fault parts will appear in the following parts: 1. Software, 2. CPU and EEPROM, 3. Other volume or mute circuits;
if the measured voltage-free fault components will appear in the power supply circuit and power amplifier IC damage .
to see more projector information & knowledge, you can come to https://www.tvsbook.com/forums/projector.5/
If there is no sound from the AV, VGA, and HDMI ports, you need to check the audio power supply voltage . The general audio power supply voltage is 1.2V to 3.3V.
If the measured voltage fault parts will appear in the following parts: 1. Software, 2. CPU and EEPROM, 3. Other volume or mute circuits;
if the measured voltage-free fault components will appear in the power supply circuit and power amplifier IC damage .
to see more projector information & knowledge, you can come to https://www.tvsbook.com/forums/projector.5/
