Proface APL3000B - Node Box PC - Manual (Page 78)

Chapter 4 Maintenance
4-9
4.5.1 Backlight Replacement Procedure for PS-3650A Series
Be sure to wear gloves when exchanging the backlight, and follow the following procedures.
(1) Turn OFF the power switch of the PS-A unit and remove the power cable.
(2) Remove the PS-A unit from the equipment (panel etc.) to which the unit has been incorporated, and
place the PS-A unit on a flat, level surface facing the display face downwards.
(3) Unscrew the screws (2) of the Expansion Board Cover, and remove the Cover.
(4) Unscrew the screws (3) of the Mask Cover and remove the cover.
• Be sure to perform the backlight changeover on a flat, level surface. This will
prevent damage to the PS-A unit and the accidental cutting of any of its power
cords.
• Be sure to protect the display surface to prevent damage during the operations.
• When using the PCI board, it is required to remove the Expansion Board Support first. Then
remove the Expansion Board Cover and the PCI board.