sherwood Newcastle R-672 A/V Receiver Shuts down

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  • Virden1
    New Member
    • Nov 2012
    • 4
    • USA
    #1

    sherwood Newcastle R-672 A/V Receiver Shuts down

    I have a R-672 that powers down to standby mode randomly. It was in a cabinet that held a lot of heat, and was wondering if it was triggering a heat sensor or something from getting too hot. I took it out of this cabinet and and let it sit to cool down for several hours. I unplugged everything but the power just to make sure there wasn't a short from a wire or something and still had the same issue. I then did a factory reset to the reveiver, powered it up, and still had the same issue. I took the cover off the unit and saw no visible problems to any capacitors or anything. Any ideas of what's going on?

    Thanks,

    Steve
    Tags: None
    • 999999999
      Badcaps Veteran
      • Sep 2006
      • 774
      • USA
      #2
      Re: sherwood Newcastle R-672 A/V Receiver Shuts down

      Probably a leaky transistor causing excessive current -> overheat condition. Look at the output stage, the main output transistor, then those that bias it and so on.

        Comment

        • Virden1
          New Member
          • Nov 2012
          • 4
          • USA
          #3
          Re: sherwood Newcastle R-672 A/V Receiver Shuts down

          Ok will do!

            Comment

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