How to repair Traktor S4 (pics and video)

Hello, my name is Raúl, I'm from Spain. I bought a cheap Traktor Kontrol S4 Mk1 because It had some problems in faders and buttons, caused by spilling beer on it.

To repair it, I read the IKU's post (http://forum.djtechtools.com/showthread.php?t=65523) and it was very very helpful. So I decided to return the favor to this forum and to thank "IKU", making my own tutorial.

The written version is in Spanish, but you can see the pics. And the video has english subtitles.

Hope you enjoy it, and THANKS "IKU" one more time.

http://www.raultriple.com/traktor_s4.html

https://www.youtube.com/watch?v=w_ERTSrE81Y