[time-nuts] pts 160 power problem

[paul swed]

Thats my suggestion also you have a cap someplace giving you trouble.

On Fri, Feb 25, 2011 at 12:15 PM, J. Forster <jfor at quik.com> wrote:

> Look for a shorted Tantalum decoupling capacitor on the DC power line(s).
>
> -John
>
> =============
>
>
> > hi
> >
> > i recently bought a pts160.  when first turned on, the 5v was pulled
> quite
> > low: < 3v.  after an hour or so, the condition cured, the 5v = 5.1v and
> > the
> > output matched the decades.
> > then, it died again.  so i know there is a unit worth saving.
> >
> > i tried another more robust 5v supply, but that goes to 4.5v and ng
> > output.
> >
> > i removed each of the plug-in decades, one at a time, looking for the
> > guilty
> > one.  no joy.  i also removed the left rear module (uses 5v).  the other
> > two
> > modules only use 12v. which is fine.
> >
> > has anyone been here before?  could it be a problem in the backplane (a
> > work
> > of art, btw)?
> >
> > many thanks...
> >
> > dave
> > --
> > Dave Mallery, K5EN                 (ubuntu linux 10.10)
> > HC31 Box 99E;                   Williamsburg,  NM  87942
> >
> > no gates...
> >   no windows!
> >     free at last!
> >       linux counter #64628 (since 1997)
> >
> > "People aren't as dumb as Microsoft needs them to be."
> > --PJ, May 2007
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>
>
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