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wonky Onkyo TX-NR717

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    #1

    wonky Onkyo TX-NR717

    Hi all,

    I'm in the process of negotiating a buy of a wonky 717 so I can't be absolutely sure which symptoms it shows, but I could benefit from any help in troubleshooting.

    According to seller the unit shuts off all sound but after a power off/on it would work again for a while.

    As I'm aware of the HDMI-board problems and Onkyo repair service, I have no problems of buying a unit with such a problem. The fix is easy (ship it out) and free, so no hassle. But any other problem in the unit might pose 'a challenge' for me, since no experience in electronics repair.

    Any help is appreciated.
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    #2
    Re: wonky Onkyo TX-NR717

    It sounds like the classic "No Audio" symptom which is covered by the customer care program. Ask the seller if the speaker icons on the display disappear when the sound cuts out to verify.

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      #3
      Re: wonky Onkyo TX-NR717

      That's what I also thought....

      So I went over, asked to hook up the unit only to power and turned it on.
      Display read "Check SP-wire" and the unit turned off.
      Seller turned the unit back on and within a second we had a show: pop, crackle, sparks and smoke!
      Pulled the cover and found scorch marks and some physically blown apart parts....
      Must be the infamous bad caps around the last amp.

      Probably above my level of expertise to attempt repair so I left the seller with a really low-ball offer. We''ll see what he want to do.
      But I'm thinking this guy knew there was more going on than just a wonky HDMI-board.

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        #4
        Re: wonky Onkyo TX-NR717

        transistors, resistors are also blown, not just caps.

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          #5
          Re: wonky Onkyo TX-NR717

          Take it apart and repair it. It's not that hard.
          Check all(!) the parts, on the vertical board(on the bad channel only) and the ones on the main board between the vertical board and the two final transistors. Replace the bad ones and adjust the idle current, to the service manual spec and you are done.

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            #6
            Re: wonky Onkyo TX-NR717

            I'd like to try and repair this one, but the seller is holding out for better offers.....
            We'll see if he wants to change his mind.

            Meanwhile I came across a 616 with the usual HDMI-board problems: it's now off to Onkyo and should be back in a week or two.

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