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   sci.electronics.repair      Fixing electronic equipment      124,925 messages   

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   Message 123,850 of 124,925   
   Allodoxaphobia to root   
   Re: lost one channel on an old Onkyo amp   
   19 Aug 23 17:32:59   
   
   From: trepidation@example.net   
      
   On Sat, 19 Aug 2023 16:10:14 -0000 (UTC), root wrote:   
   > Ronald  wrote:   
   >> On Saturday, August 8, 2015 at 11:15:10???PM UTC-4, Shaun wrote:   
   >>> "Tim R" wrote in message   
   >>> news:425fdc8f-20ed-40b2...@googlegroups.com...   
   >>> I have an old and extremely heavy Onkyo stereo amplifier that I use in the   
   >>> basement in my workroom. I bought it years ago at a thrift shop and it's   
   >>> worked well for years.   
   >>>   
   >>> Now only one channel works. I've tried it on A and B speakers and mono,   
   >>> doesn't matter. Sound comes out of only one side.   
   >>>   
   >>> Is there anything simple this is likely to be, or is it time to set it out   
   >>> by the curb? (in my neighborhood nothing makes it to garbage day)   
   >>>   
   >>> There was a thunderstorm and power outage this week, but I'm not sure if it   
   >>> failed before or after.   
   >>> I've fixed my 5 channel Onkyo amplifier years ago; It was just cracked   
   >>> solder joints between the RCA connectors and the circuit board. I would   
   >>> suspect in your case that you may have a failed transistor or two. You have   
   >>> the other channel to compare the reading too. Remove the power transistors   
   >>> (mounted on heat sinks) and check them with an DMM on diode check, then   
   >>> compare them to the pair from the working side. It is probably worth the   
   >>> effort since Onkyo has a good name for mid quality Hi-Fi equipment. Then   
   >>> look on the internet for replacements or Substitutes and get a matched   
   pair.   
   >>>   
   >>> Shaun   
   >> Only a m5160 other than what I've wrote to the military why would a   
   >> amp play on both yet not just one both channels work just not at the   
   >> same time simultaneously.. bull shit   
   >   
   > I've had two Onkyo receivers in the past. Strange things happened with them   
   such   
   > as FM not working, one or the other channel would go out. In each case   
   > I put the receiver on a shelf and bought another. The first time it happened   
   > I had replaced the Onkyo with a newer Onkyo. After a while the new Onkyo   
   > flaked out and I bought a Denon. Then for some reason I connected the   
   > original Onkyo up and everything worked. After a while I tried the same   
   > thing with the second Onkyo and it also worked. My conclusion is that   
   > if you unplug the Onkyo and leave to so for several days it heals   
   > itself.   
      
   Since you're replying to a NINE-YEAR-OLD posting,   
   I'd bet the OP's problem is now solved.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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