30 May
2007
30 May
'07
5:39 p.m.
One thing I always remember on power supplies is to not take anything
for granted when it blows out-- regarding the components health. It's
good to have a set of test equipment to check the basics,
Transistor/Mosfet Checker, ESR tester, Milliohm meter, Zener tester
besides just a DMM (a curve tracer is good to have on the bench).
Whenever I'm inside a power supply, I think it's important to take your
time and check it from head to toe--parts aren't free-- and more parts
can blow out if you only replace the first part that's bad.
=Dan
[ My Corner of Cyberspace http://ragooman.home.comcast.net/ ]
Tony Duell wrote:
Hi,
Personally I've never had any luck repairing switch mode PSUs
either....obviously there's some hole in my understanding of them....
In which case you need practice in repairing them ;-)
More seriously, there are easy faults with SMPSUs and difficult faults.
....Repairing a switching power supply is one the last
things I would want to do.
Why?