New tool to find short capacitors on motherboards : shorty with display

Collapse
X
Collapse
 
  • Page of 9
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 4 5 6 7 8 9 template Next
  • clearchris
    Badcaps Veteran
    • Dec 2013
    • 687
    • United States
    #161
    Originally posted by theflyingsquirrel
    I was working on my laptop and was trying to find a short in the circuit. I came across this project and think it is going to be really useful. I saw that the PCB design part was never been done or at least I did not see it.
    So I took the time using KiCAD to finish it up. I designed to use 0603 SMD for easy hand soldering.
    I've upload it in github.
    You guys are welcome to use it and help improve my design.
    https://github.com/theflyingsquirrel...ithdisplay.git

    I am planning to use solidworks to design the box for this after I get the circuit part done.
    https://www.badcaps.net/forum/troubl...d-as-shortypen

    I have some spare PCBs if anyone is in the US and is interested. (Not my design, just made an order from PCBWay and it doesn't make much sense to get fewer than 10).


      Comment

      Previous 1 2 3 4 5 6 7 8 9 template Next

      Related Topics

      Collapse
      • aaronkatrini
        Help me find the short circuit on this WORKING Nvidia GTX1650
        by aaronkatrini
        Hi all,

        Recently picked up this GTX1650 at a local flea market for a low price and wanted to use it on my secondary PC. I first tested the card and saw the fan spin for a split second and then nothing. Immediately I thought of a short circuit. Disassembled and found a shorted SMD capacitor, injected voltage into it (1V/4A) and two Mosfets got hot immediately (QN3103 & QN3107). Desoldered these Mosfets and the card turned back to life.

        Bought replacements from Aliexpress and replaced them afterwards. Tried the card but still the saw the fan spin for a split second...
        04-18-2024, 03:15 PM
      • snow_sg1
        MSI GS73 (MS-16K61) : help me find short (got thermal cam)
        by snow_sg1
        Hi,

        First : I've got a SMD rework station, thermal camera and good soldering station

        This is my first "short" motherboard repair, this laptop was 25€ so no loss, it just for learning. I want to learn how to fixed board because I want this to become my job.

        I've been fixing electronics for 15+ years, but mostly VCR and camcorder.

        So, I checked power adapter pin to ground, no short, then I plugged the charger in, light on charger blink indicating short.

        PQ19 mosfet got HOT straight away (viewed on thermal cam). Checked,...
        09-13-2024, 03:30 PM
      • Prott
        PCB Layer to layer short on a low voltage power plane - how to find it?
        by Prott
        Hello!
        Recently I have a problem finding a dead short (as far as my cheap multimeter is concerned) on a multilayered (12 layer) PCB. It is caused due to mechanical stress (warping the board and, I assume, cracking inner layers). Injecting voltage of 0.9 V (operational voltage of that part of the circuit) and drawing 0.5 W doesn't cause any visible hotspot on a thermal camera.

        Does anybody have any tips & tricks in order to locate the short more or less precisely? The area has a lot of powerplanes, so it's both blessing and a curse.

        Silly idea no. 1: Can I...
        08-01-2024, 12:09 PM
      • rex98
        HP DMI Tool
        by rex98
        HP DMI Tool is used to Extract DMI information from a HP BIOS Bin.

        DISCLAIMER: badcaps.net and its members do not support unlocking stolen or company-owned devices.
        The DMI Tool given here are for personal use only.

        ************************************************** ***********************************************
        DISCLAIMER: THE HP DMI Tool IS FREE AND ARE INTENDED FOR EDUCATIONAL PURPOSES ONLY.
        You CAN download it, use it.use it.I only ask that you DON'T modify it ,sell it or try to make a profit
        from it, and that you please credit the author...
        07-02-2025, 05:51 AM
      • Mess
        Beginner question. Did I find a short?? HP dax31mb1aa0 REV A motherboard
        by Mess

        Hi beginner here, so I'm not sure of I've done this right 😅 trying to diagnose my laptop's motherboard (dax31mb1aa0 rev a). I don't quite know how to read the schematic, so I'm attaching the pictures of the motherboard and the measurements.

        I was attempting to measure resistance to GND on inductors. I disconnected motherboard and used "continuity testing" setting on my multimeter. I put black probe to Ground & red probe on an inductor. Did I measure this right? Am I correct to think that 0.3 ohm measurement indicates a short circuit? Thank you for your help!...
        09-15-2024, 09:56 AM
      • Loading...
      • No more items.
      Working...