Gordon JC Pearce
gordonjcp at gjcp.net
Thu Jan 2 13:46:21 CET 2014
On Thu, Jan 02, 2014 at 12:41:37PM +0100, Jean Bender wrote:
> Well, i've measured again everything, but no way, i can't get any DC
> current anywhere. I just can trace the AC voltage, which goes.. almost
> every where !! It's really strange. I don't have +12v on C15, and no
> VDC on C8 & C21...
> I don't know how to check the schotky diodes. The current doesn't seem
> to be rectified.. Maybe one of them is dead ? Or would the 10 000 uf
> cap could cause such a problem if it was deffective ?
> Thanks for the help !!
It could be that the rectifier has failed, in which case I'd change the smoothing capacitor for good measure.
That's about the only time you'll ever see a genuinely faulty electrolytic, outside of cheap crappy switched-mode power supplies.
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