Having problems with your Altec Lansing 621 Computer Speakers ?

AVS500 Woofer has low Freq.pulse.front and back speakers working. Need circuit diagram to trouble shoot . Henry


Answers :

Is the power supply AC or DC. I had a similar problem with my boston acoustics speakers, and I was able to swap the power supply for a DC output one of the same voltage and amperage and the hum went fully away. it is an inverter circut that went bad in my woofer.
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