Monster power conditioner, broken transformer

[drewl]

Anyone work on these or other power conditioners?


Got a Monster Power Pro3500 power conditioner with a board mounted transformer ripped out during shipping.


It has 120v in, output is used to drive the logic circuitry, and I need to figure out what output voltage should be.

I was able to measure the primary, at 13ohms, secondary looks to be about twice the windings, with wire half as thick as the primary.
unfortunately, secondary wires were torn out with no way to get to them.

The output goes to a standard round bridge diode, filter caps in the area are rated at 50v, so I'm assuming AC voltage to the bridge should be around 20-40v or so.

I have a couple a small transformers in that range I'm going to try, 12v one didn't work.

So, just wondering if anyone ever worked on one and happened to measure the voltage there.

Thanks.

[Enzo]

Are ther any three leg regulators like 7815, 7812, 7805?

[drewl]

Why yes there are.

I tried a 20v trans, no luck.

So I took a little 48v one and slowly raised it's input voltage.
At around 12v ac out unit fired up working as it should.

At 14 v out unit was tracking perfectly and calibrated measuring input voltage dead on.

So that's what it needs.