Noise TDA 7294 2.1 subwoofer amplifier board

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leosep

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Joined 2013
#1
Hi, how are you all

I'm using this TDA 7294 2.1 subwoofer amplifier board and i'm using
a 3.5mm input jack soldered to the input cable. The thing is that i'm getting
some hum noise i think. What can i do to remove that noise?
 

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