[sdiy] Probing LQFP pins

[Joshua]

Are you trying to check continuity between the chip and the PCB?

Optical inspection with a microscope is usually the easiest method for me.

You can also measure the impedance to GND or VDD of the net in
question via a test-point on the PCB, and then compare this value to a
golden-sample.

Using finer probes will definitely help for probing the package directly...

-Josh

On Mon, Mar 3, 2014 at 1:17 PM, Justin Owen <juzowen at gmail.com> wrote:
> Hello, I need to check some continuity issues on a circuit board using an LQFP chip and suddenly the probes on my DMM leads are looking a bit large compared to the pin size.
>
> They work fine - but I'm thinking finer probes might make this job easier.
>
> Is the simplest way round this to get a pair of DMM leads with a finer point or is there some new-fangled trickery that might be a better solution (without spending too much money)?
>
> I'm using a GW Instek bench meter FWIW BTW.
>
> Thanks
>
> - J
>
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