[time-nuts] pts 160 power problem
J. Forster
jfor at quik.com
Fri Feb 25 17:15:15 UTC 2011
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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