Re: My Behrenger UB802 mixer won't power on
I am sorry, I missed the ball while trying to answer a couple of posts at the same time and I think that I confused you more than I helped... I don't have a Behrenger mixer but I do have 3 Behrenger pedals that are almost identical to the Boss and they use PS supplying 9 VDC; this is where I lost track of your needs...
An AC to DC converter
is not what you need, your MXUL3 Power Supply has 2 outputs that are 18.5 V (AC) and 150 mA so
you need an AC to AC transformer with two 18.5 volt AC outputs rated at 150mA or more each...
I found a picture from the actual MXUL3 PS (Posted below) and this tells me that indeed the pins are two 18.5 VAC and 1 common ground. Unless there is something I don't know about the mixer's internal circuit, I don't see why you can't use the 18 VAC - 1100 mA transformer that is listed at the Hosfelt site for $2.49
http://www.hosfelt.com/contents/en-us/d19.html
The specs of the MXUL3 that I found are a little different than yours, this model I found has two 18.5 V at 150 mA....In either case I am almost certain that the transformer listed above should work fine...
One last point, I wish we knew if the 802 needs a regulated and/or filtered PS or not, because of the cost of the 802 I assume it doesn't but please check your manual and see if it says something about it....Whenever you are dealing with sound, filtering for reducing noise and regulated Power supplies are to be considered.
If you have a circuit diagram for the mixer (sometimes included with product's documentation) please email it to me (
[email protected]) and then I will be able to tell you more accurately what is going on and what is that you need.
I have some doubts :coocoo: about why 2 outputs with the same voltage but I suspect that one of the outputs is supplying power to a separate circuit inside the mixer for doing another function (Like amplifying the voltage for a Phantom PS in order to power a microphone or something else) while the rest of the mixer is using the other 18 VAC input for normal operation.
Hopefully this will make it up for the mix up....Sorry once again...
Please let me know...
Best regards,:T
AZUARO
Flathead Lake, MT