1.1 Turn off the power and push the platform to the top position.
1.2 Remove the platform and the resin tank
1.3 Open the back cover
1.4 Disconnect 6 cables marked in the image
1.5 Loose 4 screws on the frame
1.6 Take out the module
2.1 Put back the new projector module and connect all cables.
2.2 Redo the accuracy test for the new projector.
Note: if you are using AccuWare as the slicing software, you can follow the accuracy-test wizard in it.