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Yamaha rx v373 - no power

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    #61
    Re: Yamaha rx v373 - no power

    Originally posted by Agent24 View Post
    In general, a failed filtering capacitor means noise on the power rail which can upset a CPU. The voltage might look OK with a multimeter but if you checked with an oscilloscope you would find excessive noise/ripple.
    I found another thing just now, when i am pressing power button volatage xout pin of processer goes to 1.6 from 3.3 also xin became 1.4 from 0volt .but i am not geting any output at pwr_ry pin

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      #62
      Re: Yamaha rx v373 - no power

      ANY one can help me i already replaced main cap.but still no power

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        #63
        Re: Yamaha rx v373 - no power

        Have one of these powers up with CB3 disconnected.
        Suspect a dead output transistor. Although display is not lighting up

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