Hey Greg!
When testing that new module in your rig, it would be wise to first
check the power connector for shorts before plugging it into the
supply and turning the power on. This will alert you to problems on
the module pcb before you apply power and smoke something. If you
have a Power One or similar supply (like the MOTM supply), it is
∗very∗ unlikely that you will damage the power supply. It has
excellent short circuit protection, even with the limiter maxxed.
I made a simple jack multiple with a pair of BNC connectors for
connecting signals to the 'scope. This allows me to monitor signals
in action with the rest of the system. Of course, as Mike pointed
out, it's fun to watch!
Chub - easily entertained
--- In motm@yahoogroups.com, Greg Amann <greg.amann@s...> wrote:
> Testing "in situ" would remove the need for a bench power supply!
Money
> that could be better used to send Paul's wife on that well deserved
spa
> weekend (read: buy more modules!).
>
> PLL, BFG
>
>
> Mike Marsh wrote:
>
> > I test 'in situ'. My scope is right next to my rig, though truth
(and
> > I know truth is relative) be told is use it mostly for the pretty
> > waveforms :>
> >
> > My most useful debugging tool is my VOM. I can usually spot an
> > correct errors, but every once in a while something comes along
that I
> > cna't figure out. Embarrassingly, that included a chip I soldered
> > into the 480 BACKWARDS and could n't figure out why the HP channel
> > didn't work :/
> >
> > Mike
> >
> > --- In motm@yahoogroups.com, "Greg Amann" <greg.amann@s...> wrote:
> > > How do you more experienced MOTMers test new modules and DIY
stuff?
> > >
> > > Do you test them in situ or do you have a benchtop rig? Does
the
> > > module go to the 'scope or does the 'scope go to the mountain?
(Damn,
> > > forgot, no religious threads!)
> > >
> > > I have seena photo of a get together where Cynthia had a module
> > > mounted on extenders so that trim pots could be tweaked at the
> > modular.
> > >
> > > Opinions?
> > >
> > > Thanks in advance, BFG
> >
> >
> >
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