failed recap - antec true 380

[moray]

Hi,

hoping someone can help me.
I had a faulty antec true 380 psu.
5 volt output was down to 4.5 volts.
I opened it up and found bulging caps 4700uf f*yous.
I sourced and fitted replacement caps, also replacing the 3300uf and 1000uf ones just to be sure.

I now cant get it to power on at all.
about 5 seconds after removing power it has a high pitched whistle.
I have had a close look at the board and all the solder joints look ok, and all the components likewise.

does anyone here have any ideas as to where to start looking to make this psu work again ?

[zandrax]

Re: failed recap - antec true 380

I opened it up and found bulging caps 4700uf f*yous.
I sourced and fitted replacement caps, also replacing the 3300uf and 1000uf ones just to be sure.

Did you check caps polarity before the replacement? Electrolytics won't work if their polarity is reversed: they'll fail in a few minutes, sometimes they can explode too.

Zandrax

[moray]

Re: failed recap - antec true 380

thanks for your reply, yes I made sure I got the polarity correct, I double checked just to make sure.

I have managed to resolve the issue, I used my multimeter probe and a toothbrush to scrape away all the flux around the solder joints.

I tried it again and it's all good
4.93 volts on the 5 volt line

[zandrax]

Re: failed recap - antec true 380

I have managed to resolve the issue, I used my multimeter probe and a toothbrush to scrape away all the flux around the solder joints.

I tried it again and it's all good
4.93 volts on the 5 volt line

So it was some dirt near solderings.
It seems you saved an otherwise valid Antec from power supplies' paradise: nice job.

Zandrax