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Module Circuit broken?

Discussion in 'Troubleshooting and Repair' started by theanton205, Jul 24, 2020.

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  1. theanton205

    theanton205

    2
    0
    Jul 24, 2020
    Hello, I recently had to unsolder pins off of my module, however, I believed I may have messed things up horribly. I do not want to release my true age, but I am fairly young and below the age of 15. I am new to soldering and was always able to solder things on, but this time I took the pins off and may have broken it. I have attached an image of what happened, so please let me know of the technical term of what happened and if there is any way to fix it. It is Elechouse's Voice Recognition Module V3.1, and it is fairly high in my price range. I only need the RXD and TXD pins working, as there are other pins for 5V and GND. So if there is any way of saving it, please help. Thank you in advanced.

    Kind Regards,
    Anthony
     

    Attached Files:

  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,839
    Jan 21, 2010
    Yeah, it looks like you have ripped several of the pads off.

    For future reference, it is probably better to lever off the plastic joining all the pins before removing the pins one by one. For short single-in-line connectors like the one in this board, that process often works best.

    I generally try to buy boards without the connectors because it is easier to add them later than to remove them.

    You may be able to trace what was connected to the pins and bodge a wire somewhere, however this isn't guaranteed because, in some cases there are inner layers that you can't see.

    If you have another board, you might try tracing connections from the header pins on it.
     
  3. theanton205

    theanton205

    2
    0
    Jul 24, 2020
    Thank you so much for replying (*steve*),

    Once again, I am new to this. Could you maybe describe this in more detail, or if you have any other sources that would be great. For example, what is bodge a wire?

    Thanks again,
    Anthony
     
  4. Martaine2005

    Martaine2005

    3,561
    968
    May 12, 2015
    14?

    Bodge is an old mans term (usually over 15), to add a wire from one point to another. Us young men (just over 15) call it a bridge. To deliberately connect two points together.
    But either way, it’s a simple repair where the original PCB trace has broken. So you bridge the break with some wire.
    Or bodge a wire across two points. Same thing.

    Martin
     
    Last edited: Jul 24, 2020
  5. narkeleptk

    narkeleptk

    46
    12
    Oct 3, 2019
    Personally I would secure a new header (the pins) then I would jumper the vcc and ground pins to the large capacitor. The tx/rx I would scratch away the red solder mask on their traces and attach a small wire there to jumper to the header.
    Clipboard03.jpg


    You could also follow the traces and connect the rx/tx where they make connections with components.
    Clipboard01.jpg Clipboard02.jpg
     
    Last edited: Jul 24, 2020
  6. Bluejets

    Bluejets

    5,025
    1,048
    Oct 5, 2014
    I can foresee surface mount bits falling off or destroyed all over.
     
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