The motherboard is the controller of the machine. QQS Pro uses a Robin mini plug-in motherboard. The motherboard kit consists of a motherboard and a driver.
Before starting any disassembly and assembly, make sure the machine is powered off.
Note that the wiring sequence terminals must be placed in one-to-one correspondence. Refer to the method in the video to prevent incorrect connections.
Before powering on, you need to check the motherboard wiring diagram to prevent the motherboard from being damaged or unusable due to incorrect wiring.