Pioneer A90/A200 Japanese version

Discussion in 'Pioneer Audio' started by Bagwis, Nov 12, 2017.

  1. Bagwis

    Bagwis New Member

    Messages:
    6
    Location:
    UAE
    Hello to All,

    My first Post but I've been lurking here for 5 years now ;),

    Well recently I bought a Pioneer A200 from a junkyard for 20 bucks, sure thing it will be more jobs to do. I'm restoring it to it's former GLORY:banana:

    See below pics when I picked it up.

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    The Unit has been badly tampered and dirty, will post some progress along the way.
     
  2. pdm4606

    pdm4606 Super Member

    Messages:
    2,663
    Location:
    Las Cruces, NM
    Hope you noticed the voltage being built at 100V. You'll need something to drop U.S. line voltage, if that is where you're at. Nothing indicating your location.
     
  3. restorer-john

    restorer-john Super Member

    Messages:
    4,246
    Location:
    Australia
    Doesn't look too bad at all. Keep your eyes open for wrecked version of the models below it, right down the range- they used some common knobs.

    You will have to get a 120-100v stepdown (if you are in the US) or else you will cook the amp- they run hot enough as it is.

    Welcome to AK!
     
  4. Bagwis

    Bagwis New Member

    Messages:
    6
    Location:
    UAE
    Evening to all.

    I will use step down transformer for this amp.
    Oh the knobs i already remove before I took some photos :).

    Let me share some photos again.

    Some dirty/Oxidize knobs. dirty.JPG

    Dirty knobs.JPG

    After Cleaning:
    Clean knobs.JPG

    Bottom Plate:
    Dirty Bottom.JPG

    and Inside:
    055.JPG

    The torroid :
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    some corroded section and parts.
    012.JPG
     
  5. Bagwis

    Bagwis New Member

    Messages:
    6
    Location:
    UAE
    ....Cont.

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    018.JPG

    The Previous owner or maybe a technician "Murder" the amp. How can someone destroy/neglect the beauty of this BEAST:whip:
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    036 (2).JPG
     
  6. Bagwis

    Bagwis New Member

    Messages:
    6
    Location:
    UAE
    It will be a tedious job but I will continue till it works properly, I'm doing it after the Office job so the progress is a bit slow. I ordered some parts from Mouser and I'm expecting it to come soon.
     
  7. geespot

    geespot PUT it IN MY POCKET

    Messages:
    1,597
    Location:
    Minneapolis
    here is one I had a while back, totally mint
     

    Attached Files:

  8. restorer-john

    restorer-john Super Member

    Messages:
    4,246
    Location:
    Australia
    You can return that copper base to as-new on the bottom panel by making up a solution of white vinegar and table salt in water. Stir it up and make the water warm. Bath the plate in that and then neutralise it in a bath of water and bicarbonate of soda. Then dry off thoroughly and coat with a protectant.

    All stuff you can rob from the kitchen...

    *bath doesn't mean a big bath, just a sink or trough.
     

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