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Buzzing sound coming from the power supply circuit when printer is powered on. Based on this design, do you have tips to where start looking for the fault? HP 82134A printer from
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Golvery Ground Loop Noise Isolator, Auido Humming Hissing Buzzing Noise Filter Eliminator for Car Audio, Home, PC Stereo System with 3.5mm or RCA Aux Jack
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