E-MU xboard 25 is not starting. Checked diodes on power input, voltage regulators seem fine. Again, multilayer board stops my work without schematics.
Does anyone have schematics for this or met the problem already?

Re: Soundcraft UREI 1601 - master bus problem

Problem solved, DAC replaced after month of shipping

Yes I did, DAC replaced after 1,5 months of shipping from China to Poland.

Hello.Did you solve the problem with your UREI?

Re: Soundcraft UREI 1601 - master bus problem

R_J, you have some really nice stuff.
I found out that DAC (IC4 on DSP) does not give output. All the voltages around IC4 are exactly the same as around IC5 and IC6 which are working fine, IC4 gets the same data on inputs, so that's why I think it's a DAC failure. I'm almost sure..

Re: Soundcraft UREI 1601 - master bus problem

Geeez, how did you get it? Nevermind. No VU, don't show anything, no signal on booth out. I'm getting my hands on it with the schematics. Thank you very much!

Hi Everyone,

I have a problem with UREI 1601 which is a digital DJ mixer. There is no sound on MASTER OUTPUTS despite the fact that on MASTER CUE everything works fine. I checked control voltage on master pot, there is none. So I'm looking for the source of the CV, and also the source of signal for IC10 which is MASTER OUTPUT buffer, but it is a multilayer board and I already spent a two days on it. Does any one have any clue? Or maybe schematics? I could not find one anywhere. Or some advice from more experienced circuit expert on how to look for it.
I asked for help at...

Re: New Members - please post your introductions here

Hi All,

I'm acoustics engineer with developing electronics skills. Mainly I repair mixers, amplifiers, synthesizers. Now I'm working on my own audio system. Sometimes I get some magical stuff that I need some help with. I'm also willing to help anyone with my growing knowledge and experience.

Cheers!