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The Zishan dsd's corner

Discussion in 'Portable Source Gear' started by neog007, Nov 17, 2016.
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  1. matula
    DBaldock9 likes this.
  2. HeyManslowdown97
    Has anyone changed the Axicom 3v single relay, it’s power caps, and the 3.5 and 2.5 output cross referenced parts that can be provided on the thread?? Don’t care if the info is indirect and asked by another user (in another way) just need the part and it’s link on Arrow. Thanks
     
  3. Merlin-PT
    I had an idea, for a low profile soic8 connector, that _maybe_ could fit the case.
    (I'm not sure if it fits, maybe useful for other cases, I didn't try it and don't need this here)

    Let's say someone solders a low profile version of the 1st connector in the PCB, to make a male soic8 adapter:
    IMG_20190309_153820.jpg
    Then we could solder a soic8 opamp to a low profile female connector (3rd connector in the photo) and I think it could fit some cases. This connector is smaller than the soic8 and only a little taller.

    The male PCB connector soldered on the PCB can also be used for these type of adapters:
    https://www.ebay.com/itm/10pcs-DIP8...pcb-1-27mm-PCB-converter-300mil-/172515912391

    I also think a version of the ebay adapter could be made, using the connectors in my photo and the normal PCB used to make soic8/dip8 adapters. The female connector would go instead of the opamp, and the dip8 female on the other side.
     
    Last edited: Mar 9, 2019
    buzzbuzz, nesty, endia and 3 others like this.
  4. HeyManslowdown97
    [Deleted]
     
    Last edited: Mar 9, 2019
  5. Merlin-PT
    Sorry, I don't know about the relay.
    Pls edit and delete the quote, your reply is not about my quote.
    Even if it was, it's good practice not to quote the post above the reply, because the text is already there above the reply.
     
    Last edited: Mar 9, 2019
  6. HeyManslowdown97
    BB617722-25FF-411C-894D-14D800A73019.jpeg

    [Merged]

    Edit??? The mod up above was my Idea. Already ordered those adapters. Please edit. Repeating post of my concept. And yes I’m that petty.

    How about Kemet or Panasonic; a legit reliable maker.

    Saw this one on Mouser. Would it work if the pins fit??

    Just as sidenote I find gold plated connectors the best and silver a bonus. Even the the TOP Audio Notes Capacitors are made from Silver- Durable af!!!

    They polished mostly Brass, the ”silverware” was polished for special occasions. It was used by ”extras” maids as a filler) Also, lots of people drank in those days so if you notice they always offer a guess a drink.)

    Gonna order/change the LDOs might as well give the darn thing a complete overhaul and be done with it.

    https://www.mouser.com/ProductDetail/KEMET/EB2-3TNU-L?qs=sGAEpiMZZMs3UE%2BXNiFaVHguZ825iWzETvsfZ8/hB0Q=

    Specs match but have hard to time recharging at 1A when everything is at 2.0 and above USB. It’s annoying because I’m using an external battery charger to get it to full charge. Ahh!
     
    Last edited: Mar 9, 2019
  7. Merlin-PT
    My post has nothing to do with the ebay link that I gave you for you to buy the adapters. But I didn't knew you had a patent on those ebay adapters by now. :)

    Also you replied my post with the relay msg. that had nothing to do with it.
     
    Last edited: Mar 9, 2019
    HeyManslowdown97 likes this.
  8. HeyManslowdown97
    No problem, everyone makes mistsks. You must now pay me in Royalty checks per post and the payments can be made to: Ernest Zishan :D Thanks.
     
  9. buzzbuzz
    Last edited: Mar 9, 2019
    Merlin-PT and DBaldock9 like this.
  10. HeyManslowdown97
    Yes but from Tokyo, Japan so they might be more legit than those from China!

    Japanese take their audio very seriously. May be worth the investment.

    You’d have to contact the seller and ask the right questions.
     
    Last edited: Mar 9, 2019
  11. DBaldock9
    I saw those yesterday - but unfortunately, the pins have shoulders on them, that will limit how far down they can go into the socket.
     
  12. HeyManslowdown97
    Yea but not by much and if they don’t fit you can use them for other project. Also they don’t have protruding pins on the top so it makes up for the space on the bottom :wink:
     
  13. Ivan TT
    Relay is a part of output delay protection scheme, disconnecting HP output for short period of time during power up to prevent thumps and clicks/pops.
    And it has absolutely nothing to do with the power capacitors, or charging.
    Charging is controlled by a dedicated chip, it has ability to set/limit charging to a certain rate, it appears to be set to maximum (2A), so why DSD charges at a rate of about 500mA is a mistery, but slow charging rate is beneficial for battery life.
     
    Last edited by a moderator: Jun 6, 2019
    JackFlash likes this.
  14. endia
    I have the same idea for a while and mentioned here;
    https://www.head-fi.org/threads/the-zishan-dsds-corner.826185/page-117#post-14774360

    contrary to dsd 4497, gain stage opamp not replaceable in dsd 4495 but lpf is.. so I want to desolder op275 (next to the volume pot) and make it interchangeable..

    IMG_20190217_195832s.jpg

    while waiting for hot air solder gun, semi-finished the adapter;
    enlarged the holes with the drill and placed the socket pins and then cut the tips.
    but pcb routes are not functional anymore, soic8 pins extensions will be bent and soldered to the socket pins..


    IMG_20190213_215509s.jpg
    IMG_20190213_215542s.jpg
    IMG_20190215_084933s.jpg
    IMG_20190215_085403s.jpg
     
  15. HeyManslowdown97
    First saw it in a Burson Video for how to solder and then I got ifeqcdelThat’s how I got the idea from you
     
    Last edited by a moderator: Mar 11, 2019
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