From: mark_zacharias@sbclobal.net   
      
   "Adamfarber"  wrote in message   
   news:Adamfarber.65b209e@audiobanter.com...   
   >   
   > 'Mark Zacharias[_2_ Wrote:   
   >> ;911215']"Adamfarber"  wrote in   
   >> message   
   >> news:Adamfarber.65a237e@audiobanter.com...-   
   >> >   
   >> > Hi, I have a Yamaha RX-V596 home theater that has all of a sudden   
   >> > started to hum, unit is about 8 years old. . You can hear it in all   
   >> the   
   >> > speakers, it is coming from the unit itself, anyone know what I can   
   >> do?   
   >> > Thanks, Adam   
   >> >   
   >> >   
   >> >   
   >> >   
   >> > --   
   >> > Adamfarber-   
   >>   
   >>   
   >> If the Yamaha were actually producing hum, this would indicate most   
   >> likely a   
   >> power supply problem.   
   >> Normally the Yamaha's protection circuit would shut it down in this   
   >> scenario.   
   >>   
   >> Does the problem with ONLY the speakers and no other devices hooked   
   >> up?   
   >>   
   >> If not, perhaps a ground loop. This is not uncommon.   
   >>   
   >> If so, maybe a main power supply capacitor open circuit - I'm not sure   
   >> if   
   >> that would trigger the protect circuit.   
   >>   
   >> Mark Z.   
   >   
   > Hi Mark, I unhooked everything and hooked up a speaker to one of the   
   > outputs and listened to FM and I still heard the him. Thanks, Adam   
   >   
   >   
   >   
   >   
   > --   
   > Adamfarber   
      
      
   Well, you would need a schematic at this point, which brings up the   
   question, are you a technical person and able to read the schematic?   
      
   Mark Z.   
      
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