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wrote in :


It's probably bad electrolytic caps,where their ESR increased,a very
common failure of switcher power supplies.

Sam, How do I recognise which caps are bad? Thanks


If you don't have an ESR meter like the Dick Smith Electronics meter(very
affordable,very good),then you're best bet is to replace all the
electrolytics.

Also look for discolored,swollen,or bulging electrolytic caps;indications
they are dissipating excessive heat.

--
Jim Yanik
jyanik
at
kua.net