Dream Vision DM 7000-S - Manual (Page 30)

With the cross-slot screwdriver, unscrew the three cross-slot screws on the
rear of the unit.
With the torx screwdriver, unscrew the two torx screws on the right-hand side
of the unit.
With the torx screwdriver, unscrew the two torx screws on the left-hand side
of the unit.
Draw the case covering away from the unit towards the rear.
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15. Hard disk installation instructions
15. Hard disk installation instructions