Chasing the Sony CX20084 speed chip for D6C walkman

Discussion in 'Tech talk' started by rcpilot23, Jan 17, 2022.

  1. Capturing Memories

    Capturing Memories Member

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    Be careful, There are fakes out there, make sure you have a return policy.
     
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  2. Silverera

    Silverera Active Member

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    Not sure if I posted on an earlier thread but
    my techie friend made a test rig patched into a junk DDII bought for parts. We used the CX20084 from that to repair a D6C but the test rig is very useful to test IC's that claim to be compatible with the CX20084. My strip of 6 referred to earlier work so there were some around several years ago that are compatible with the genuine ones.
    Otherwise your best option is to buy a junk DDII as a donor but these are rare too.
    It's another reason I prefer the D6 to the D6C. Sure you've got hybrid modules that can and do fail causing the speed to accelerate but at least these modules can be disassembled and a dud transistor replaced on them. Can't do that with the CX20084 dedicated IC unfortunately.
     
  3. Capturing Memories

    Capturing Memories Member

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    Assuming the chip being tested won't damage the tester DDII.
     
  4. Capturing Memories

    Capturing Memories Member

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  5. Silverera

    Silverera Active Member

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    Well not sure I'd be throwing a $100 into the wind to find out but I doubt they're genuine. It's not like they're generics used in many different PCB's to justify getting a replacement scoped, manufactured and released to a potentially large market. If you could return it if it failed in an external test rig then may be worth checking out.
     
  6. Silverera

    Silverera Active Member

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    Update. Check the feedback on the Polida listing of the CX20084 and a few complaints about other chips being fake. One buyer was offered $2 back when putting up negative feedback.
    Buyer Beware!
     
  7. Capturing Memories

    Capturing Memories Member

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    Would you be interested in making these and selling them to the members?
     
    Last edited: Oct 27, 2026
  8. Capturing Memories

    Capturing Memories Member

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    I used your Gerber zip folder and dropped it into PCBway and it looks like I can make the first order for $34, I just need someone to check if I entered all the parameters correctly, It looks too good to be true but I'm pretty sure I'm missing something:


    Screenshot 2026-10-27 024328.png



    Screenshot 2026-10-27 024410.png



    Screenshot 2026-10-27 024446.png
     
  9. Capturing Memories

    Capturing Memories Member

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    Please advise, PCBWay came back with out of stock notice, can anyone look at the attached picture and tell me what is the best replacement? Still waiting on LeKos input as he is the designer of the PCB.

     
  10. Capturing Memories

    Capturing Memories Member

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    It looks like the upload function is broken again on this forum, I will upload one when it's fixed.
     

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