Due to the lack of info i am going to list the possible problems from simple to complex. 1. check power (is it plugged in / is voltage passing) 2. check the signal.. (follow the signal cable to the pc and make sure its connected to the OUTPUT) 3. is your sound card functional (plug in some headphones to the output to test it / also check to see if the drivers are installed and functioning)
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Due to the lack of info i am going to list the possible problems from simple to complex.
1. check power (is it plugged in / is voltage passing)
2. check the signal.. (follow the signal cable to the pc and make sure its connected to the OUTPUT)
3. is your sound card functional (plug in some headphones to the output to test it / also check to see if the drivers are installed and functioning)