¶ Step Motor Driver
1. Disconnect the main power. Remove the 4 screws on back cover by knob wrench and remove the back cover
2. Unplug the cable connectors in the motor driver which is going to be replaced. Then, remove the 2 screws to take the specific motor driver off.
3. Notice: confirm the position of the white switches in new driver are the same to the ones in old driver.
