MOTM

Thanks for all of the good goodness of good ideas.

My current plan will be to make a 4U module "tray" and a long power cord 
that will allow me to test the module "in situ" but completely exposed 
to my malicious scrutiny.  A few interesting patch cords can be made to 
allow me to monitor whatever needs to be observed.

PLL, BFG

charlesosthelder wrote:

> 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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