Most of the patch components have been soldered, only need to solder some plug-ins, it is very simple,let’s start………..
A total of 2 boards, we first solder the components on the two boards, then connect them with wires.
1.Board A front
2.Board A back
3.Board B front
please note the the led dot matrix direction,look at the picture,beacause if you are wrong,fix it is not easy
4.Board B back