Replacing board

[speedee]

I'm replacing the board of my Drumbrute, but I'm not sure about how to disconnect  6, 7, 8 on the picture. I can't find any click-system or something. Maybe I've just have to pull it out, but I need to be realy sure about it. Does somebody know these connectors?

[I grec]

Hi speedee,
You just need to pull it out.
Be careful when pushing it in again. Those wire strip are delicate. Be sure it is inserted perpendicularly.

Regards,
Y.