Originally Posted by
Sierevello1
Hello,
I bought 2- power supplies that were supposed to be 68vdc and 12 amps. I just tested one of them and got 34 volts dc at the output. These are supposed to be older Antec units but there are no markings anywhere on them. There are 4 wires coming out of the toroid. There is a yellow/white that comes out of the toroid in the same location and a blue/orange that comes out of the toroid in the same spot. The input is a black and gray wire.
The orange/white goes to one bridge rectifier and then to a capacitor. The blue orange does the same and then they are joined at the output terminal strip. When measuring the the output I get 34vdc and not the advertised 68vdc.
So I am trying to troubleshoot and don't have a whole lot of knowledge on transformers. I assumed 2 things:
1) This should have a primary voltage of 240vac and not 120vac OR
2) It is wired in parallel and not series so I am getting half the voltage.
Anyone have any advice on how to figure this out. I have included pictures.
Thank You,
Steve