Ramps 1 4 Wiring Diagram. Dec 14 this board was designed from the ramps schematic so many of the pins the mks gen. It is the same you will find on the official reprap wiki.
Each component should be set and connected with different parts in particular way. Get four spare wires and connect them on the two com v and the two v nodes. These fan pins can be found between the fuses and the x stepper driver see image above.
On the image the left pin is so make sure the red wire from the fan connects to that one.
It is the same you will find on the official reprap wiki. 86 755 2658 4110 fax. Otherwise the arrangement will not function as it should be. However i am ramps z is wired in parallel but there are some benefits to wiring in series.
