I have an adjustable power supply having a selectable voltage from 15v to 24v. It was sold as a universal soundbar power supply.
It has been outdoors in the elements powering a set of outdoor bluetooth rock speakers until recently when it stopped working. (ya ya I know...)
I opened it and it looks like there was some liquid ingress but I can't find any shorted silicon and the fuse is not blown. I measure about 160v dc after the bridge rectifier but nothing at the main cap. I suspect the power ic is not running. Obviously there is no voltage on the secondary either.
How would I go about determining if the power ic has failed or what would be my next thing to look at ?
It has been outdoors in the elements powering a set of outdoor bluetooth rock speakers until recently when it stopped working. (ya ya I know...)
I opened it and it looks like there was some liquid ingress but I can't find any shorted silicon and the fuse is not blown. I measure about 160v dc after the bridge rectifier but nothing at the main cap. I suspect the power ic is not running. Obviously there is no voltage on the secondary either.
How would I go about determining if the power ic has failed or what would be my next thing to look at ?
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