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  1. #1
    Junior Member Copy of a Copy's Avatar
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    Question Pin voltage testing on boards

    Does anyone have a suggestion for a multimeter lead connector type for testing male pins on a logic or system board? I have the typical leads and smaller leads but was wondering if there is a lead that is insulated and can actually insert all the way to the connector base to reduce shorting out boards and small enough to fit two leads that may be close in proximity again without frying anything.

  2. #2
    Service Manager 5,000+ Posts
    Pin voltage testing on boards

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    Re: Pin voltage testing on boards

    Quote Originally Posted by Copy of a Copy View Post
    Does anyone have a suggestion for a multimeter lead connector type for testing male pins on a logic or system board? I have the typical leads and smaller leads but was wondering if there is a lead that is insulated and can actually insert all the way to the connector base to reduce shorting out boards and small enough to fit two leads that may be close in proximity again without frying anything.

    My suggestion would be to buy a logic probe.






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  3. #3
    Senior member of CRS 2,500+ Posts
    Pin voltage testing on boards

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    Re: Pin voltage testing on boards

    Quote Originally Posted by Copy of a Copy View Post
    Does anyone have a suggestion for a multimeter lead connector type for testing male pins on a logic or system board? I have the typical leads and smaller leads but was wondering if there is a lead that is insulated and can actually insert all the way to the connector base to reduce shorting out boards and small enough to fit two leads that may be close in proximity again without frying anything.
    Make our own insulated lead; disassemble a female connector (with the appropriate size pins) and 2 to 3 inch’s of insulated wire, and use shrink wrap/tubing to insulate the pin. Strip the end of the wire for your connection to the meter lead.
    Last edited by ZOOTECH; 09-13-2021 at 08:39 PM.
    "You can't trust your eyes, if your mind is out of focus" --

  4. #4
    Service Manager 1,000+ Posts
    Pin voltage testing on boards


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    Re: Pin voltage testing on boards

    If you go to Amazon and search needle tip meter leads you will find plenty.

  5. #5
    Master Of The Obvious 10,000+ Posts
    Pin voltage testing on boards

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    Re: Pin voltage testing on boards

    In that situation I'll take two large straight-pins, then shrink-wrap all but 3mm at both ends of the straight-pins. Press the pins into whichever electrical pins you want to read, and use clip leads to connect to the head of the pins. It works better if one of the pins is longer than the other. That way the clips are not at the same height, less likely to touch each other.

    This also works in situations where you cannot reach the terminal. The straight-pins will press through the wire insulation for a quick voltage read. =^..^=
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  6. #6
    Junior Member Copy of a Copy's Avatar
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    Re: Pin voltage testing on boards

    All great answers, thanks for the input!

  7. #7
    Retired 10,000+ Posts slimslob's Avatar
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    Re: Pin voltage testing on boards

    Quote Originally Posted by blackcat4866 View Post
    In that situation I'll take two large straight-pins, then shrink-wrap all but 3mm at both ends of the straight-pins. Press the pins into whichever electrical pins you want to read, and use clip leads to connect to the head of the pins. It works better if one of the pins is longer than the other. That way the clips are not at the same height, less likely to touch each other.

    This also works in situations where you cannot reach the terminal. The straight-pins will press through the wire insulation for a quick voltage read. =^..^=
    I have found that staples for finishers that are not yet bent work nicely as large straight pins.

  8. #8
    Service Manager 5,000+ Posts
    Pin voltage testing on boards

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    Re: Pin voltage testing on boards

    Many years ago when I was taking an electronics class, we had a logic analyzer that used these type of test clips specifically designed for IC pins. I don't think you can get any better than that for IC pins.



    10x/Set 28cm Test Clip Hooks Mini Grabber Jumper Lead Probes For Logic Analyser | eBay


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