Click to jump toPower supply replacement Video Guide
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Shut off the power first, Refer to the IR3 V2 Installation Video Guide. Remove the upper frame
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Refer to the IR3 V2 Replace the conveyor belt Video Guide. Remove the conveyor belt
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Turn the cover to the back side and unscrew all 8 screws on the case cover.

- Then remove the computer case cover. When doing so, first disconnect the wires of the fans that are still connected at the bottom.

- Remove the four screws of the side power switch.

- Use a one-sided wrench to loosen all the wires on the power supply and remove the power switch.

- Remove the 5 screws that fix the case.

- Remove the wire terminal of the front roller.

- Pull up the case, then turn it over. Remove the screws that fix the power supply.

- Replace the new power supply, align the holes and reinsert the fixing screws.
- Put the case back, reinstall the power switch and lock the screws.
- Reorganize the wiring and reconnect it. Connect the red wire coming out of the power switch and the red wire coming out of relay 2 to the “L” terminal of the power supply. Connect the black wire coming out of the power switch and the black wire from the heating bed to the “N” terminal of the power supply. The two green and yellow wires are ground wires and should be connected to the grounding mark of the power supply. The red wire coming from the lower computer motherboard should be connected to the “V+” terminal of the power supply, and the black wire should be connected to the “V-” terminal.

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Lock the 5 screws that secure the outer chassis position back in place.
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Insert the front roller wire terminals back into the wire terminals on the chassis cover.
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Insert the fan terminal back onto the cover of the case, close the case cover and lock the 8 screws back in place.
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Refer to the above video tutorial to reinstall the conveyor belt and the upper frame, then re-level them.