[Sonic Mini 8K] Replacing the Mainboard

The mainboard can function as the brain of your 3D printer. It determines how various components such as the LCD, LED, motor, fans, and others operate. Over time, the mainboard may become faulty due to a variety of reasons, such as power surges, physical damage, or wear and tear. If your printer's mainboard is not working properly, you may need to replace it.

In this article, we'll walk you through the common steps to replace the mainboard in Sonic Mini 8K. By following the following instructions carefully, you can get your printer up and run again in no time.

1. Removing the Old Mainboard

Remove the bottom case

• Turn off the printer and unplug it
• Remove the UV cover, resin vat, and building plate
• Carefully lay down your printer
• Loosen the 4 screws on the bottom case and open it

• Gently unplug the LED connector and remove the bottom case

Remove the old mainboard

• Disconnect all cables/ wires (No.1 to No.7)  that are linked to the mainboard (see the below pic)

• Loosen the 3 screws located at the 3 corners of the mainboard (see red circle in the above pic)
• Remove the old mainboard from the printer

Make sure to fold up the cable clip before removing the ribbon cables.

2. Installing the New Mainboard

Install the new mainboard

• Install the new mainboard and secure it the original place
• Reattach the all the cables and wires on the mainboard
• Reinstall the bottom case of the printer
• Turn the printer upright

Check the new mainboard’s functionality

• Plug in the power cord and switch on the printer
• Perform a dry run test to check if the new mainboard functions properly
• Installation is done

Contact Support

By following the above instruction, you can easily replace the mainboard of your Sonic Mini 8K printer. If you find any issues, feel free to reach out to Phrozen Support or your Authorized Reseller for further assistance. When contacting Phrozen Support, kindly send some photos or videos illustrating the issue.