Completely destroyed this fan driver

About a year ago I had my dsl connection a half mile up the road hit by a flail mower. Township trustee on a tractor. They fixed it with wire nuts and a garbage bag over it.... The green post box is gone.
 
The giveaway was the electrolytic capacitor, it serves no purpose on the AC side of the circuit unless it is may be used as part of a filter with two caps antiparallel.
 
ANC said:
The giveaway was the electrolytic capacitor, it serves no purpose on the AC side of the circuit unless it is may be used as part of a filter with two caps antiparallel.
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That or the + / - markings lol
 
before.jpg

Id apply AC power to the red boxed pair and eliminate the yellow boxed pair. The black wire on the red box is likely the hot side.
 
Renfro said:
It's not gonna know the difference but id put the narrow side on the black wire. Looks like the red wire next to it has a white stripe and is likely the neutral.
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But red represents positive on the DC side so shouldn't I keep that the same? Narrow prong to red?
 
Airwalker16 said:
But red represents positive on the DC side so shouldn't I keep that the same? Narrow prong to red?
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There is no positive and negative on Alternating current.

In the diagram, I boxed a pair in red. That SHOULD be the AC input.

The DC output is on the other end of the board.
 
The bridge rectifiers don't care about neutral. If you have a grounded case some manufacturers will put bypass caps from neutral to ground. Then you want the line to one side of the cap. Or movs. I started with 3 watt LED panels and had lots of failures. I took them apart to learn a bit. Chinese color codes aren't.
 
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