[Sonic Mini 4K] Replacing the LCD

The LCD screen is an essential component in resin 3D printing. It is responsible for generating an image of each layer while an LED array project light through it to cure the resin.

As the LCD screen is a consumable part, it may need to be replaced after a period of use. When the LCD screen becomes damaged or worn out, it can result in lower print quality or failed prints. Therefore, replacing the LCD screen is necessary to ensure the continued performance and accuracy of your 3D printer.

1. Removing the Old LCD

Preparing the Printer

• Turn off the printer and remove the plastic cover, building plate, and resin vat.
• Carefully lay the printer down on a flat surface.

Opening the Bottom Case

• Loosen the 4 screws on the bottom case, and then open the case.

Disconnecting Components

• Gently unplug the LED connector and remove the bottom case.
• Peel off the tape behind the touch panel.
• Open the cable clip and detach the LCD ribbon cable that connects to the mainboard.

Remove the old LCD

• Turn the printer upright.
• Remove the tape around the LCD screen.
• Carefully remove the LCD screen.

2. Installing the New LCD

Preparing for LCD Installation

• Thread the LCD cable through the slot.
• Place the new LCD in position.

Securing the New LCD

• Paste the tape around the edge of the new LCD.
• Lay the printer down on a flat surface.

Connecting Components

• Reattach the cable to the LCD's adapter board and tape the board in place.
• Reconnect the LED connector to the mainboard.

Finalizing Installation

• Reinstall the bottom case.
• Turn the printer upright and turn on the printer.

Verify the functionality of new LCD

• Perform the built-in LCD test to ensure that the LCD works properly.

Please recalibrate your Z Axis after replacing the LCD Screen your printer.

Once you replace the LCD, if the issue still persists please reach out to our customer support team for further assistance. In the meantime, please also provide us with photos of both the LCD Cable Connection and the LCD test.

Contact Support

By following the above instructions, you can install a new LCD for your Sonic Mini 4K. If any issues arise during the steps, 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.