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judo

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Posts posted by judo

  1. You are on the wrong forum. You can start here

    Google QN90A black screen

    I am not teasing you the info is there but you need to work a lot to find it. There could be a hundred cause. Do not open the box if you have no experience with high voltage it could kill you, only try the other tips!

    I am answering you because I had to repair a 3d lg TV myself because the service only wanted to do it for almost the full price of the tv. It was a few months to find the info, parts and equipment but I had no choice because you can not buy 3d TV s nowadays. How can we watch the next Avatars?

    • Like 1
  2. To the others:

    Why this is personal to me, this is not my case. Kevin maybe on Headwise spoke about the mini amp first but more than ten years ago I am sure. I am waiting for it from then. The project restarted a few times. When the head-case server died I told somebody here it was because of ministat amp restarted, Ill fate it could not be accomplished.:) The truth is I do not need it not travelling much hardly can walk. I am accustomed for the waiting and there is no really good portable amp, I am curious. And now this situation.

    Yes, I do not like thiefs, everything is stolen some want to eat some want a new Tesla.

     

  3. 1 hour ago, JoaMat said:

    Back in 2011 I bought 50 2SA1486 from www.utsource.net.  Price 0.30USD each plus 28USD for FedEx, a few days from China to Sweden.

    They were green and I haven’t used them at all, but they measure same on DCA75 and DY294 as 2SA1486 from bdent.

     Anyone tried www.utsource.net ?

    A few pieces a few times from eBay I do not remember fakes but I am not sure I checked them all. Usually when I could not get from mouser what I wanted.

  4. 6 hours ago, Rinat said:

    They have 25 pcs in stock, while the original scheme requires 26 pcs ) 

    Personally, I would suggest to use 2sa1413-z if one wants to strictly follow the original scheme: it is the same transistor in TO-252 case (bdent says that it is D-PAK, but they have sent to me TO-252 version, which is even better for me). 

    https://www.renesas.com/us/en/document/dst/2sa1413-z-data-sheet?language=ja

    But I think that STN9360 is even better option than 1486/1413....

    TO-252 = D-PAK

  5. We are getting older and clumsier. You are much more experienced than me so on my level I think the eye is the main problem the hand can do it only slower. You have to think every step twice and this is the hard part. When you ruin something that feels a catastrophe you  should leave it for a time then start again with clear head. I am sorry I have made similar mistakes most long time diy-er do.

     

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  6. It seems as the PCB fabrication the PCB population is out of an average diy-er hand. Now microscope, oven, stencil fabrication etc. we have to buy or make? robots in the near future. I do not know this is good or bad. Soldering was the part of the game but will not be missing much, I think.

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