In article ,
Jake Joseph wrote:
I have a Behringer UB2442FX Eurorack mixer. Before the flames start,
I liked it, when it was working. It did exactly what I needed.

It died, out of warranty, and the switching power supply looks to be
toasty. Behringer US doesn't have PS modules yet, so it looks like
board level repair is where it's at.

It uses very close to a demo circuit from Power Integrations from
their TOP245Y chip. However, I don't know what the final voltages are
other than there should be a +5V (Based on the 7805 regulator) and
there should be a 48V. There are 5 voltages available, guessing from
the connector.

I'd guess a +15V and a -15V. Maybe a little higher, but probably not
much higher than that.

If it's a switching supply, my guess is that the regulation is probably
done using the 5V line as a reference. If it were done properly, they'd
be using the difference between the +15V and -15V rails as as reference,
though.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."