Electronics > Beginners
How afraid are u to turn it BACK ON
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lordvader88:
I'm plenty new enough to be worried about trying AC powered stuff again after repairs. I have a lightblub current limiter setup. Soon I'll be getting a big variac transformer.


In the meantime I'm going to use a wooden blast shield when I fire up a computer PSU I got back together
waytec:
 :-DD Hi

To be honest my success rate is only about 25% in repairing SMPS....
I give up after a couple of a attempts and throw it away....and just buy another.....
After a bad experience a number of years ago ... I still use a small pillow to cover the unit when powering up etc:.... |O


Wayne
byoungblood:
I usually do a quick continuity test to ground and to adjacent pads on anything I’ve been soldering on a PCB, just for my own sanity before I power something up, regardless if powered off of AC mains, DC supply or even battery powered. Seems to at least lessen the chance of letting the smoke out of something or causing some kind of unintended operation after powering it back up.
drussell:

--- Quote from: lordvader88 on April 19, 2018, 02:59:47 am ---I'm plenty new enough to be worried about trying AC powered stuff again after repairs
....
In the meantime I'm going to use a wooden blast shield when I fire up a computer PSU I got back together
--- End quote ---

LOL...  Yeah, it can be a tad nerve racking when you fire something up that you're not 100% sure what is going to happen when you do...  On the other hand, it is more fun that way!  :)

Take a moment to review any potential hazards, double check your work.... then engage safety squints, step back and carefully, gingerly apply the pow

(er if you didn't just blow yourself up)   ;D

edit:  (or off to the E.R. if you did?)  ;D
Distelzombie:

--- Quote from: byoungblood on April 19, 2018, 03:26:46 am ---I usually do a quick continuity test to ground and to adjacent pads on anything I’ve been soldering on a PCB, just for my own sanity before I power something up, regardless if powered off of AC mains, DC supply or even battery powered. Seems to at least lessen the chance of letting the smoke out of something or causing some kind of unintended operation after powering it back up.

--- End quote ---
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