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  • SarcasticOP
    Seeking Guidance on Motherboard Diagnostics
    by SarcasticOP
    Hello everyone!

    I hope this is the correct place to post this, if not please let me know and I will post in the appropriate location.

    I'm venturing into the intricate world of board repair within electronics, and I'm reaching out to this community for some guidance and shared wisdom. I have tried to do some research myself and find this information on my own, but I don't know what I don't know, and that is really starting to become an insurmountable issue that I cannot overcome. The only person I had nearby that I could turn to passed away recently so I do not have anyone...
    01-10-2024, 03:35 PM
  • Devicemodder
    Hacking the keyboard connector on my thinkpad X1 tablet Gen 3
    by Devicemodder
    I recently discovered that the dock connector on the Thinkpad X1 tablet Gen 3 uses USB for the keyboard on the POGO pins, I want to use that connector to add a USB 2.0 hub to my tablet case (lenovo medical case for the X1 tablet)

    Can't find much info on that bit online, but found lots of info for converting the Keyboards to USB. I wired up a USB port following https://sharktastica.co.uk/resources/im ... ogo-6p.jpg

    If i connect a 10K resistor between ground/pin1 and pin5 (NC) i get a USB ding and then i see voltage on the 5V pin, but it drops to 2-3V when i plug in a...
    01-13-2025, 04:44 PM
  • blues_spirit
    practical courses for troubleshooting pc motherboards
    by blues_spirit
    Hello from France,
    mon2 kindly advised me to post a thread to ask the question(s) I'm concerned about. I'm new to the forum and I'm looking for practical courses for troubleshooting pc motherboards especially laptops in Europe, if possible in France. I have been a computer network system administrator and a corrector of administration modules for automated programs under Unix. But I really miss the practical "ops" side of troubleshooting. So I would like to start from the beginning: 1.8V, 3.3V, 5V and 19V tests for example, etc...
    Do you think this is feasible for me? I...
    12-18-2022, 12:56 PM
  • paulyboy
    Laptop Repair PDF Resources
    by paulyboy
    Hi all,

    Was wondering if anyone can recommend some resources for motherboard repair on general laptops etc.

    Have been doing apple MacBook repairs for the last year or so so I understand the way they work with power rails but I'm at a loss when it comes to the Windows laptops

    Ie, power rails sequences, power rail names, rail requirements l,

    I watch a bit of north bridge fix and I notice he's always showing a short on a mosfet on most laptops etc, always checking on the gate of a mosfet or source drain etc

    For mosfets my...
    08-20-2022, 05:17 AM
  • abajor
    A2141 DFU error message now USB C asking 20.49V and configurator says "Recovery"
    by abajor
    I have a A2141 which fails DFU with error code shown in image.
    Now instead of DFU it says "Recovery"

    A little back ground on this laptop. I was thinking of writing a topic on corporate laziness and irresponsibility.
    We acquired a handful of laptops which a very large company wanted to have shredded due to sensitive information.

    Since apple has NSA grade drive formatting I think this is inexcusably lazy that the IT department doesn't just target mode format the drives and release the MDM, and donate the laptops.
    Personally I think a large company...
    05-09-2024, 01:48 PM
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