Replacing the Combo Cable on Ray5 10W and 5W

The combo cable connects the control board to the motors, limit switches, and laser module. If the cable is damaged or the connection becomes loose, the machine may experience communication problems or unstable operation.

This guide explains how to replace the combo cable on the Ray5 10W and Ray5 5W. The replacement procedure is also similar for the Ray5 20W and Ray5 40W models.

Tools You'll Need

Prepare the following tools before you begin:

M5 hex wrench
M2 hex wrench
Replacement combo cable

Important: Turn off the machine and disconnect the power cable before performing any maintenance.

Step 1: Disconnect the External Cables

Disconnect all cables connected to the following components:

Motors
Limit switches
Laser module

Next, use the M5 hex wrench to loosen the screws that secure the control box. Carefully remove the control box from the machine.

Step 2: Open the Control Box

Use the M2 hex wrench to remove the screws on the back panel of the control box. Remove the back cover to access the mainboard and internal wiring.

Step 3: Remove the Old Combo Cable

Locate the combo cable connected to the mainboard. Carefully disconnect the cable without applying excessive force or touching nearby components.

Step 4: Install the New Combo Cable

Insert the new combo cable into the corresponding ports on the mainboard. The cable is labeled for easy identification, so match each connector to the correct port.

Step 5: Reassemble the Machine

Close the control box and secure the back panel using the M2 hex wrench
Reinstall the control box onto the machine
Reconnect all cables to the motors, limit switches, and laser module

Important Notes

Before turning the machine back on:

Make sure all connectors are fully seated.
Do not force any connector into place. Align it correctly before inserting it.
Double-check all cable connections to ensure they are installed

Conclusion

Replacing the combo cable is a simple maintenance procedure that can help resolve communication and connection issues on the Ray5 10W and Ray5 5W.

After installing the new cable and confirming that all connections are secure, the machine should be ready for normal operation. Regularly checking cables and connectors can also help prevent unexpected interruptions and maintain stable engraving performance.