Samsung VMR-I HD Series Product Manual page 51

Appendix G How to Take off the power cabinet
G1: Use the M3 Allen key to turn the fuse button in the direction of the mark, as shown
below:
G2 Press the four buckles shown below and open them as shown below:
G3：Hold both ends of the power cabinet with both hands and pull the power cabinet
backwards, as shown below:
51 / 56