My MCU pros display faded to oblivion after about a year(which according to posts on the webs, is about its life span.
This is my second display to die, the first one was one a demo unit from sweetwater that lasted 3 weeks, they replaced the MCU with a brand new unit.
 
I found a place in Germany that sells EL displays mine cost $26 with shipping via Deutches Post pretty quickly. Had to take out 432 screws  to get to the EL panel, but went easy.The only caution is you have to heat sink the leads when soldering  to prevent damage to the panel. 
 
Buttoned it up and now back to a bright blue display. I think I will order two more as backup spares for the pro and the expander.
 
So if your handy with tools and a soldering iron it beats sending it off(unless ur in warranty)

Do you have a link or website of the German company that provided the display ?

Thanks!

bwbalint
Do you have a link or website of the German company that provided the display ?

Thanks!

Sure do    http://www.backlight4you.com/
 
here is their page directly for the EL panels
 
  https://www.backlight4you.com/EL-Panels/EL-Replacements:::46_130.html?MODsid=2bc1180821999f4f19ad5ae118a0dcad
 
they have ELs for ALL kinds of stuff besides the Mackie

Thanks. I might look into getting a spare as well.

Here is a video on how to perform the replacement:
 
https://www.youtube.com/watch?v=eeRHw711IFw&t=419s
 

Wow, I still have the MCU from back in the day and it works well. The only thing I had to do with it was spray slightly inside of the faders to keep them calibrated.  I haven't received the failed calibration message since I used the CAIG DeoxIT Fader spray.