Laser level sDB1, four threads are all broken, I do not know which welding!
There should be drawings. I have a circuit diagram.
Red is the power cord, VCC, black are H, V1, V2 and OUT, red do not answer the wrong line, and other connected wrong, it does not matter
Red is the power line VCC, black V1 V2 and OUT H are red, do not take the wrong line, other wrong never mind, is not corresponding to switch, can also be used, you can see the circuit board, marked above
