I am not trying to discourage you but nowadays, I don't
think people would do that kind of repair anymore. I know
its no good to the enviornment but that is what the world
is now. I have seen people throwing away PSUs just becaue
the fans are not working. Another fact, the components are
not as long lasting as before and the manufacturer just don't
expect their customer to use anything more than 3 years.
(My monitor-Sony is 7 years old now and I have no intention
to throw it away and my last monitor had last for almost 11
years-Acer) Life cycle of consumer products are getting
shorter and shorter. And if your PSUs are made in China,
you can might as well forget about the repairment, it won't
be worth. You may save more if you buy a new one. Repair
at the component level is of no commerical value, you just
have to treat it as a matter of interest. I really miss the wire
wrap tools and soldering guns.