Re: HP 1650A Logic Analyzer

Yes all electrolytics are suspect especially the output filter caps.

Kevin
On Mar 5, 2013 1:35 PM, "Jose Luiz Martins" <joseluizmartins@gmail.com>
wrote:

> Hi Folks!
>
> Continuing to put back to life my old test equipment...
>
> I stored my HP 1650A Logic Analyzer in working order about 6 years
> ago. I bought it used - I think it was highly used once the screen has
> signs of burn on it.
>
> Yesterday, when I finished to fix my Fluke 9010A, I've decided to try
> the 1650A and nope...
>
> The power source clicks and the voltages are not correct. 7V instead
> of 12V, 4,5V instead of 5V and oscillating.
>
> I have not experience in PS repair, but someone told me that the
> electrolytic capacitors may be dry due the time it was stored (as well
> as de condition, one it was in Rio de Janeiro, and at summer time, the
> room temperature may be more them 120F)
>
> Could someone confirm that please ?
>
> Thank you very much !
>
>
> JL
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Received on Tue Mar 5 14:46:12 2013