Proface APL3000B - Node Box PC - Manual (Page 65)

PS-3450A Series Hardware Manual
3-8
(1) Turn OFF the power switch of the PS-A and remove the power cable. Place the PS-A on a flat, level
surface facing the display face downwards.
(2) Unscrew a screw of the expansion board support and remove the expansion board support.
(3) Unscrew the screws (2) from the Expansion Board Cover, and remove the cover.
(This figure is PS3450A-T41.)
(This figure is PS-3450A built-in HDD unit.)