I am fixing a crashed S2 and have to replace the gimbal. The wires were cut and they are not marked. On the SD/Gimbal board, there are 2 pins marked Y (Yaw -- white wires), 3 pins marked P (Pitch -- blue wires) and 3 marked R (Roll -- black wires) and . The wires are not marked in any way, other than 2 are white and 3 each are blue and black. Does anyone have any clue how to correctly identify and solder the wires on the board?