I have an old apfc psu in a Samsung TV using Samwha WL-series capacitors. By inspection they are obviously dead. Oddly enough the other caps in the TV seem okay. Samwha appears to be a dubious manufacturer but are they? Their WL datasheet seems like they did do something to rate the capacitors but nevertheless they failed first, spectacularly.
As a proof of concept fix I'm tempted to replace them (two parallel 82uF 450V low esr) with two *series* 470uF 230V general purpose capacitors...
Should last an hour at least to prove the rest of the TV works, no?
Then I wonder what model/brand of caps to use for a more permanent fix...
As a proof of concept fix I'm tempted to replace them (two parallel 82uF 450V low esr) with two *series* 470uF 230V general purpose capacitors...
Should last an hour at least to prove the rest of the TV works, no?
Then I wonder what model/brand of caps to use for a more permanent fix...
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