Mitsubishi Electric JT-SB216DS-W-AUS Handbook page 15

4Remove the maintenance cover clamping screws (marked
by ▼) (five special black screws 4 x 16, indicated by ●).
5Pull out the maintenance cover, and then remove the switch
cover clamping screw (one PTT screw 4 x 16, indicated by ●).
6Open the lid of the switch cover, and then remove the switch
clamping screw (one PPT screw 3 x 10, indicated by ●).
(3) Display board
1Perform the same work as in steps 1 through 4 of (2) above.
2Pull out the maintenance cover, and then remove the display
board lead wires (indicated by ●).
3Remove the display board from the mounting spacers
(indicated by ●).
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