Does this capacitor look like it's leaked or blown?
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Blown cap
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Re: Blown cap
That ooze almost looks like the tan/brown glue that goes conductive. But I don't see that kind of glue anywhere else on the board, so I don't think that is it. Very surprising that it is leaking out of the positive terminal. As stj said, usually they do it on the negative one. And yeah, that very likely be the reason for not getting power. Just hope nothing else has blown when that cap went.
Also curious what brand of capacitor is that?
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Re: Blown cap
Originally posted by momaka View PostThat ooze almost looks like the tan/brown glue that goes conductive. But I don't see that kind of glue anywhere else on the board, so I don't think that is it. Very surprising that it is leaking out of the positive terminal. As stj said, usually they do it on the negative one. And yeah, that very likely be the reason for not getting power. Just hope nothing else has blown when that cap went.
Also curious what brand of capacitor is that?--------------------------------------------------------------
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Re: Blown cap
Originally posted by momaka View PostYup, Taicon it is.
A little surprised, though. Generally, I see them fail a lot less than other 2nd tier brand and expect them to fail less. But I suppose that doesn't mean too much when it comes to 2nd tier caps.
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Re: Blown cap
Well, APFC is a whole another story. Even good Japanese caps fail there sometimes, particularly if the manufacturer penny-pinched and used 85C -rated caps instead of 105C -rated caps... and also 400V caps instead of 420V or 450V caps. Going with 105C caps for higher rated voltage means bigger caps - which is quite necessary, because APFC puts more stress on the caps (lower ripple current than at 50/60 Hz, but at much higher frequency, so the end result is more stress on the caps than caps simply getting rectified DC straight from the line at 50/60 Hz.)
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