Fujitronic Programmable Operation Display UG520H-x - Manual (Page 268)

3 - 54
4. Remove the screw fixing the backlight unit (CFL unit).
5. Raise the backlight unit (CFL unit) once and remove the unit by sliding it horizontally.
While raising the backlight unit, do not twist or yank on the
cable.
6. Attach a new backlight unit (CFL unit).
When taking a new backlight unit out of the bag, do not twist or
yank on the cable.
7. Attach the screw to fix the backlight unit (CFL unit).
8. Connect the backlight unit (CFL unit) connector.
Screw
Backlight unit (CFL unit)
Backlight unit (CFL unit)
Screw
Backlight unit (CFL unit)
Backlight unit (CFL unit) connector
7 How to Replace the Backlight Unit