28 Feb
2007
28 Feb
'07
8:07 p.m.
What I really need is someone that's done troubleshooting on a 7904 power
supply before, that can offer a few suggestions. Like, if I do locate a bad
cap, what should I replace it with? The DigiKey catalog is vast.
-T
At 11:44 PM 2/28/2007 +0000, you wrote:
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273. [Philosophy] "What experience and history teach is this--that people and
government never have learned anything from history, or acted on
principles deduced from it." --Hegel
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB: http://www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
At 10:12 AM 2/28/2007 -0500, you wrote:
I sure hope that's true.
It is. You can't possibly find a fault that's not there. And an
intermittant fault is 'not there' when the device works correctly.
One of the most annying faults to trace (and we've all had them) is the
fault that disappears when you connect a 'scope probe _anywhere_ on the
device under test. Most likeht it's a bad conneciton somewhere, but
finding it will drive you (in)sane...
-tony >See
if it "comes back" after
>having been off for a while. Perhaps this is a known condition
>of the unit.
I've tried it once a day since Sunday. No go.
Thats probably good news - nothing harder to fix than a problem
which comes and goes ... If it firmly busted, it shouldn't be too
hard to find.