[Info-vax] Proactively rebuilding DS10 power supply??

[Scott Dorsey]

In article <29edff77-caa8-49ba-9711-818a1536ce1b at googlegroups.com>,
Galen  <gltackett at gmail.com> wrote:
>On Tuesday, October 11, 2016 at 7:53:04 PM UTC-4, abrsvc wrote:
>> There is not a lot of room to work in these.  I would not touch a working=
> suplpy until necessary.  Remember the old saying:  If it ain't broke, don'=
>t fix it.  The act of removing the supply and letting it cool can cause a n=
>umber of other things to show up.  Given its age, there are likely "cold" s=
>older joints that wouldn't show up until cool.  Leave it alone.
>>=20
>> Once it fails, then rebuild it.
>>=20
>> Dan
>
>Sounds like good advice.
>
>My DS10 sits idle and powered down far, far more than I would like, partly =
>because I'm afraid every time that I power it up, the power supply will blo=
>w. (Also, I admit, because of lack of time to do all the fun things I'd lik=
>e to be doing with it.)

And that, in short, is why it's not good advice.  If you're not using the
machine because you're terrified that it is going to fail soon, then why
not fix it so it doesn't fail?

Hint: it's a lot easier to do pre-emptive maintenance than it is to do
repairs.  After the electrolyte has damaged the board and the switching
fet has failed into a short and taken out the driver stage, it's a lot 
more work.
--scott

-- 
"C'est un Nagra. C'est suisse, et tres, tres precis."