Nomer IC power supply mixer soundcraft efx12 - Soundcraft Efx12 - 12 Channel Sound Board Console Mixer

SOURCE: i have an epm 8

The E-8 mixer lights the power LED from the +15 volt regulated power...

The TYPICAL power supply might be similar to that on page 2 of:

http://elektrotanya.com/soundcraft_spirit-mseries_psu-digi-out.zip/download.html

Scroll down to "get manual" and click to download... ignore other dowload links on the page. You can use a free unzip program to unzip the RAR files.

Here is the E-8 schematics but missing the power supply... you know the drill... same as above:

http://elektrotanya.com/soundcraft_e8_mixer_sch.pdf/download.html

Since your unit has "morning sickness" I think you will find a BAD siolder joint in the power supply... The supply is very simple and it takes a trained eye sometimes to see the little gray line in the meniscus of the soldering at a lead that indicates a bad connection. Tracing the +/- 15 vp;ts should be an easy task. Pay particular attention to heavy components and the leads of the three terminal regulator chips... I would look at the +15 volt one closely...

SOURCE: hi ihve soundcraft efx12 &

Do you have a solution. I have the same problem.