Sonic Mini 8K LCD Replacement

[Sonic Mini 8K] Replacing the LCD

Before You Begin

1 Open the Bottom Cover and Record the Wiring

1. Carefully lay the printer on its side on soft padding, with the bottom cover accessible.
2. Remove the bottom cover screws. Support and open the cover slowly without pulling attached cables.
3. Photograph any cover wiring before disconnecting it. Release locking tabs and hold connector bodies; do not pull the wires.
4. Photograph all mainboard connections and cable routes. New socket positions may differ; reconnect according to the new board labels and kit instructions.

2 Remove the Old Mainboard

1. With power disconnected, unplug all mainboard cables, including the LCD and touchscreen cables. Label them for identification.
2. Release each ribbon cable lock before sliding the cable straight out. Do not pull a locked cable or pry the socket off the board.
3. Grip plastic connector bodies. For screw terminals, record wire order and polarity before loosening them. Do not force connectors.
4. Support the disconnected mainboard, remove its screws, and lift it out. Keep the mounting hardware and avoid touching components.

3 Remove the Light Shield and Old Touchscreen

1. Release any tape or cable fasteners around the light shield so cables will not be pulled during removal.
2. Support and unfasten the light shield, then remove it. Keep it and its mounting hardware. Avoid touching optical surfaces.
3. Support the touchscreen from inside the printer. Remove its fasteners and disconnect any attached cables.
4. Carefully remove the old touchscreen. If it resists, check for remaining fasteners or adhesive; do not force it.

4 Remove the Old LCD from the Top of the Printer

1. Secure loose parts and cables, then return the printer upright. Ensure the disconnected LCD ribbon cable can move freely.
2. Peel off the black LCD frame tape. Do not scrape the mounting surface with metal tools.
3. Hold the LCD edges and slowly lift it out from above, guiding its cable through the opening. Release remaining adhesive first.
4. Do not press the LCD center, bend the panel, or pull its cable. Remove adhesive residue and debris; leave the mounting surface clean, flat, and dry.

5 Install the New LCD and Secure It with Frame Tape

1. Check the new LCD orientation and feed its ribbon cable through the opening without pinching or sharply creasing it.
2. Lower the LCD into place by its edges. Ensure it sits flat and aligned, with no cable trapped underneath. Do not press the center.
3. Follow the supplied instructions for shipping film removal. Never peel off polarizing or functional layers. Contact support if unsure.
4. Apply the new frame tape around the LCD and gently press the edges. Keep it flat and clear of the active display area.
5. Confirm the LCD is secure before laying the printer on its side again.

6 Lay the Printer on Its Side and Install the New Mainboard

1. Carefully lay the printer on its side without loading the LCD or touchscreen opening. Move cables clear of the mainboard mounting area.
2. Align the new mainboard with its mounting points and external ports. Install and tighten the screws without bending the board.
3. Connect the LCD ribbon cable according to the kit instructions. Check the LCD-side connection as well, if applicable.
4. Check contact orientation, insert the ribbon cable straight and fully, then secure the lock. Use the cable specified for your kit.

7 Install the New Touchscreen and Reconnect the Cables

1. Align and support the new touchscreen in the front opening. Reinstall its fasteners without pinching the ribbon cable.
2. Connect the specified ribbon cable to the touchscreen. Check its orientation, insertion depth, and lock; cable width alone does not confirm compatibility.
3. Connect the other end to TOUCH SCREEN on the new mainboard. Insert it evenly and secure the lock.
4. Reconnect remaining cables using your photos and the new board instructions. Check seating, locks, wire order, and polarity. Do not guess by wire color.

8 Reinstall the Original Light Shield and Arrange the Cables

1. Position the original light shield and route ribbon cables clear of its edges, screw posts, and fasteners.
2. Secure the shield and restore cable restraints. Keep cables away from moving parts and cooling components.
3. Check all connections. Avoid sharp cable creases, fan contact, and wiring that could be pinched by the bottom cover.
4. Restore any disconnected ground wires and remove loose screws or tools. Ask support to identify unfamiliar cables or sockets before continuing.

9 Reinstall the Bottom Cover and Run an LCD Test

1. Support the bottom cover and reconnect its cables. Check for trapped wires, align the mounting holes, and reinstall the screws.
2. Tighten the screws, check that the cover sits flush, and return the printer upright. Leave the resin vat and building plate off.
3. Reconnect power and start the printer. Check the touchscreen display and touch response. Turn off and unplug before checking any faulty connection.
4. Place white paper on the LCD. Select TOOLS, then LCD TEST, and follow the instructions. Do not look directly at the UV light.
5. Check for a complete, correct test pattern without abnormal lines or missing areas. If abnormal, stop, turn off, and unplug before checking the LCD cable and locks.
6. After a successful test, reinstall the building plate and perform Z-axis calibration. Reinstall the resin vat before printing.

Contact Customer Support

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