Arfa Daily wrote:
Wouldn't it be easier in the end, to just use your DMM on its lowest ohms
range with a continuity beeper, to hook onto one end of a track where you do
know that it finds its way to the top or bottom surface, then go hunting for
the next place where it appears by initially listening for the beep, and
then checking for the near-zero ohms reading that you will be getting, if
you have found a direct connection ?

I've actually done that, combined with putting the PCB over a strong
light to make it easier to trace the tracks visually. It's a pain in the
arse, but it's not totally unfeasible. The one problem is that if you're
tracing a digital circuit, you're likely to get lots of beeps on power
pins you hit, due to all the ESD protection diodes in the chips.


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