Motherboard Replacement
When to replace the motherboard
●The motherboard is damaged and cannot work properly.
Required tools and materials
●Philips screwdriver
●Motherboard
Reference video
Precautions before operation and machine status
This operation involves the replacement of the motherboard and the disassembly and assembly of the circuit. Please take all necessary precautions before disassembling the machine. Please turn off the machine and cut off the power supply.
Motherboard wiring diagram
Operation steps
1. Use a Phillips screwdriver to loosen the five fixing screws on the bottom cover, open the bottom cover from the side, and then unplug the cable port of the motherboard cooling fan.
2. Use a Phillips screwdriver to loosen the two fixing screws of the "POWER", "HB0-", "HB1", and "HE0" ports in sequence, and attach paper labels on the cables to distinguish the positive and negative poles.
3. Unplug the remaining cable ports on the motherboard in turn (If the hot melt glue is difficult to remove, you can use an electric hair dryer to blow it off and then remove it).
4. Use a Phillips screwdriver to loosen the four screws fixing the motherboard and take out the motherboard from the bottom cover.
5. Replace the new motherboard, put the motherboard into the mounting position, align with the screw holes and the port holes of each model on the left, and use a Phillips screwdriver to tighten the four screws fixing the motherboard, and insert the corresponding ports in sequence according to the labels on the tool cable. (The power cord follows the principle of red positive and black negative to connect), finally, insert the motherboard cooling fan cable into the motherboard's FAN3 port.
6. Align the protrusions on the bottom cover of the printer with the grooves and place it in the mounting position (The bottom cover has a direction distinction, do not install it in reverse). Finally, use a Phillips screwdriver to tighten the five screws fixing the bottom cover.
- After successfully boot, operate "Level" on the touch screen. After re-leveling the printer, it can be used normally.
