Panasonic Cxx boxes bad capacitors

Discussion in 'Tech talk' started by Michiel, Oct 12, 2024.

  1. Michiel

    Michiel Member

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    I have four Panasonic RX-C50 boxes. Only one was operating normally. So I decided to check the inside. I have never seen it so bad, but almost every capacitor has corrosion and green legs. Even the one that still works has the same problem. I replaced the capacitors in the working one. Tried to fix a non-functional one and came to the conclusion that the rotten caps also destroyed the poweramp. Ordered a new IC, so hope this was the only damage.

    Is this a common problem with this RX-Cxx models from Panasonic? I would love to get a C60 or C100. The C50 sounds so great! But not if I have to recap the whole box to enjoy it! Any experiences?
     
    Last edited: Oct 12, 2024
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  2. Hyperscope

    Hyperscope Well-Known Member

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    I Googled the Panasonic RX-C50 to see what it looks like. 1980's box and bad caps already? They must have used a really bad low quality brand or it was a bad batch. Is there a name on those old bad capacitors?
    Anyway, always cool to hear that there other fanatics out there painstakingly replacing the capacitors in their boom boxes :bigthumbsup: We need some pictures please!
     
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  3. Michiel

    Michiel Member

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    Panny RX-C50 is a nice collectable boombox. Its small, they take not much room, they are stackable, there are six or seven colors, and they are the most powerfull mini's I've ever heard :)

    The caps problem is strange. I've got quite a few boxes and I hardly have to replace capacitors. I guess 99,99 of all caps are still original and the boxes are playing just fine. The RX-C50 seems to be different. Almost all caps look like this:

    Caps - Copy.jpg

    And an overview of the box with all the caps I replaced....

    Panasonic RX-C50 - Copy.jpg
     
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  4. Hyperscope

    Hyperscope Well-Known Member

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    And what does it say on the capacitor itself? What brand? Curious that's all. It has to be an off brand junk, not Nichicon, Elna, Rubycon etc.,
     
  5. Michiel

    Michiel Member

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    They are just the standard caps. Don't know the specific brand. But now the box is working, I noticed how hot it gets inside. The big transformer and the heavy poweramp inside the super small space make it noticeable hotter than other boxes. By now I am convinced that it must be the heat that has substantially shortened the life of the capacitors.
     
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  6. Cassette2go

    Cassette2go Well-Known Member

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    I have a rare to be seen RXC 100 but I need $700 for it cuz I have a lot invested in it 17306503617621522908393279201860.jpg
    If you're really interested in it, I'll get it down off the shelf. Otherwise it's going to stay up there cuz it's very heavy to move around. Here's where it's at. 1730650503463466487890213495798.jpg
    Yeah I'll give you one more picture of the room 17306505809379005514916365823576.jpg
    You can see it in the upper left hand corner of this picture and quite a few other things lol
     
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  7. Michiel

    Michiel Member

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    Thanks for the offer James! That's a super rare radio in the most beautiful color imho! I've been told that the display in the box is just unbelievable awesome too! The sound is at the top end too. Yes you have so much stuff haha. I kinda have the same problem, so I paused getting more stuff for a while, until I make some extra space :) Good to know you have the biggest Panny Cxx grail up for grabs :)
     
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  8. Cassette2go

    Cassette2go Well-Known Member

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    The reason why it's so expensive is I paid a lot for it to begin with and then when I got it I had to have the electronics the amplifier replaced and then I had the speakers with new surrounds put on them. So it's fresh
     
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