Onkyo A-9010 and the need of a Christmas Miracle

Discussion in 'Audio Hardware' started by e-teacher, Dec 1, 2019.

  1. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    So. I posted this on another audio forum and hoping someone here can assist. For those of you who may have seen this elsewhere I apologize..

    So this is my first post. I normally don't do this type of posting, but have been a benefactor of those who do post and learned a great deal through reading other post. I have an extensive background in electronics and worked at an audiophile store during my college years. (late 70's, early 80's) Like most people, work and raising a family took precedence. (40 years in the electronics industry, last 20 was spent teaching electronics) So fast forward, I'm retired and the audio bug hit's again! I recently picked up a "starter" unit, based on recommendations and research, an Onkyo A-9010,..Wow! Things have changed in 40 years! In a good way... Now the bad parts..(ha! Pun!) I had read of issues with the volume control and I now have that issue.. No problem, I can fix that..NO I CAN'T! Only if I can buy the part can I fix that. I identified the faulty part, designated 25-3 Volume pcb in the service manual, (it's actually a pcb with the volume potentiometer, with an electric motor on the back side) that just plugs in front control board. It is part number COP12710C-3. From what I can gather this has been the achilles heel, of an other wise steller value in the Onkyo A-9010. I will spare you the agony of my call to Onkyo, to the local service center and all the reasons (which I understand) that a "normal" person is not allowed to purchase parts. I'm looking for a Christmas Miracle! Anyone out there that can help? Someone know someone, that is wiling to help. We use to live in a world that you could buy parts and repair things..Otherwise, I think I made a mistake.. But I am a quick learner....Hope this either helps me, or someone else..

    There has been some other questions and post.. I not post those here unless they are relevant to the discussion..
     
  2. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    So here is my official reply from Onkyo... Reminds me of a Seinfeld episode.."No parts for you!!"


    (deleted by a moderator)


    But I'm still hoping to find someone that's willing to be reasonable and help.. Even someone that works at, or knows someone at a service center willing to help...Here's a couple of photos.
    [​IMG]

    [​IMG]
     
    Last edited by a moderator: Dec 1, 2019
  3. Helom

    Helom I'll take the monkey coffins

    Location:
    U.S.
    Maybe you could make friends with the nearest authorized repair tech. Since you already diagnosed the issue it may not cost much to have the tech order and install the part???

    Regardless of availability, what's to say the replacement part won't eventually suffer the same fate? Might be better to cut your losses and move on to a bullet-proof Yamaha amp. :D
     
    OC Zed, quicksrt and bluemooze like this.
  4. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
    There are a lot of possible causes on that board for whatever problem you have. What exactly is the problem?
     
  5. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    I'm sure you are correct. The very first indications of a coming "opportunity" was a change in volume while listening. At first, very slight but noticeable. Also the center imagine would shift, requiring a balance change, then change back.. Next came the inability to turn the volume completely down. The final straw was an unexpected increase so loud, I was concerned a future change could damage speakers. I then learned with a slight pressure change on the volume potentiometer, a push or pull or slight left or right twist, all of the symptoms could be recreated..As I had said earlier, having spend 40 years chasing electrons, I was very careful and methodical before coming to the conclusion. I could always be wrong. But I would be willing to spend my money on the part to repair it.
     
  6. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    Oh and I futher verified my conclusion by removing the part, and while the circuit was live, applying torque to the circuit board to insure it wasn't a cold, or cracked solder joint on the circuit board. But since the part is listed as a complete unit, that was alittle over the top. But I wanted to make certain it was not a repair I could do without replacing the module..
     
  7. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    I did contact the nearest service repair center suggested by Onkyo, but they were unable to help. But I do very much hope I can make a connection that can help.
     
  8. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
    I'd say the volume pot is bad, likely a cheap Chinese piece. It's spec'd as a 50KBx2. That info and the printing on the side of your pot may help you hunt one down.
     
    Mlle. Aurora likes this.
  9. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
  10. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    Last edited: Dec 2, 2019
    Shawn and bluemooze like this.
  11. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
    I hope you ordered 3 or 4.
     
    2channelforever likes this.
  12. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    If this one works, and then fails, the Onkyo will experience a fiery demise! And I will enjoy it..Ha!
    Thanks again... You may get to credit yourself with a Christmas Miracle! That's gotta make Santa happy!!!
     
  13. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
    It's a 6 buck Chinese pot, of course it's going to fail.
     
  14. quicksrt

    quicksrt Senior Member

    Location:
    City of Angels
    Craig's List (no shipping fee), or eBay to replace this without spending too much. Looks like a really nice basic amp with a smooth look.
     
  15. McLover

    McLover Forum Resident

    Location:
    East TN
    Yamaha bullet proof. Maybe selected vintage and separates and some high end models. They fail too, less often than Sound United brands. Some Yamaha is more reliable and more repairable than others. Yamaha makes cheap and nasty equipment and all kinds to high end statement items. Can't lump all in one brand. Every brand has something they're not proud of (which had a lot of warranty issues). And not picking on you. I like better Yamaha as well as anyone does.
     
  16. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
    Sound United didn't own Denon when that integrated was made. HELLO!!!
     
  17. Per F1, at $6 order 3 or 4 & replace as needed? I get attached to inanimate objects & enjoy DIY, up to a limit of course, & the 2 likes serve me well so for me 3 or 4 replacements would just be the price of fun for a favorite gear.
     
  18. McLover

    McLover Forum Resident

    Location:
    East TN
    But Denon still was no better supported on spare parts and service even then. FACTS! Seen many a 3 or 4 year old with an unobtainable custom IC cause it to be unrepairable. Not unusual with them. The older 2 channel units were usually better odds of repairable.
     
  19. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
    However you stated, " They fail too, less often than Sound United brands", which was a very broad and erroneous statement.
     
  20. McLover

    McLover Forum Resident

    Location:
    East TN
    Most of the Denons, the Marantzes, are less reliable than they once were. Especially the AVR models. My dealer's failure rates bear this out.
     
  21. e-teacher

    e-teacher New Member Thread Starter

    Location:
    Blairsville, Ga
    Interesting.... I received another email from Onkyo... From the same person as first. Much nicer that the first email. This time, they at least told me the part was obsolete and unavailable and included a PDF of the owners manual..( I have an original?) A definate shift in customer relations from the first and makes me wonder? Hopefully it means they are listening.. Still waiting on the replacement to arrive..Scheduled to be here Christmas Eve..Isn't that ironic...Ha!, or should I say Ho! Ho! Ho!.....
     

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