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Thread: Christmas is coming and the DCB1's getting fat......

  1. #261
    Join Date: Jan 2014

    Location: london se6

    Posts: 823
    I'm AndyElectroNumpty.

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    TBH I would have been amazed if it had worked 1st time lol

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  2. #262
    Bigman80 Guest

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    Quote Originally Posted by smangus View Post
    TBH I would have been amazed if it had worked 1st time lol

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    Have you got them in the right way round?

  3. #263
    Join Date: Jan 2014

    Location: london se6

    Posts: 823
    I'm AndyElectroNumpty.

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    I thought so but maybe not lol how do I test the polarity?

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  4. #264
    Join Date: Jan 2014

    Location: london se6

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    I'm AndyElectroNumpty.

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    Still ElectroNumpty lol

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  5. #265
    Bigman80 Guest

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    Gonna have to have a closer look now you've cut the legs off and soldered them in. Check the pic.

    If you have a multimeter, have a check of the components around the illuminated LEDs and see where the electricity gets too.



  6. #266
    Join Date: May 2017

    Location: West Sussex, UK

    Posts: 775
    I'm Steve.

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    Hi Andy
    You can check if the led are right way round without taking them out.
    Study Oliver's diagram, anode=post and is +
    Cathode=anvil and is -
    You can see through the led and you should have facing the flat on the board.
    It only takes 1 led to be in the wrong way per side to put them out

    Steve
    Turntable; Rega p8
    Cartridge; Alpheta mc
    Phono Stage; Rega Aria, Bigbottle 3 mm/mc
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  7. #267
    Join Date: Jan 2014

    Location: london se6

    Posts: 823
    I'm AndyElectroNumpty.

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    Thanks chaps will do some trouble shooting tomorrow. cheers Andy

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  8. #268
    Join Date: Jan 2014

    Location: london se6

    Posts: 823
    I'm AndyElectroNumpty.

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    ok so finally had a look at the board and the leds are the right way around. Think I have teaches the limit of my non numptyness Any other ideas on what to test?

    thanks

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  9. #269
    Join Date: Oct 2012

    Location: The Black Country

    Posts: 6,089
    I'm Alan.

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    Double check you have the correct small fets or transistors in the right place.

  10. #270
    Join Date: Jan 2014

    Location: london se6

    Posts: 823
    I'm AndyElectroNumpty.

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    Quote Originally Posted by Firebottle View Post
    Double check you have the correct small fets or transistors in the right place.
    Thanks Alan

    Have checked and looks like they are in the right place and correct orientation. Unless one of the components is duff or some thing

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