Fujitronic Programmable Operation Display UG520H-x - Manual (Page 255)

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UG320 Backlight Unit Replacement
(Required Tool)
Screwdriver
Do not touch cables and boards that are not associated with backlight
unit replacement. Doing so may result in failure.
When replacing the backlight, take appropriate preventive measures
against static electricity.
* The point of measures against static electricity is to keep the entire workplace including humans at
the same electric potential. Use an anti-static wristband or mat to prevent static electricity.
1. Turn the POD over, and remove the 4 external screws.
Place it on a cloth, etc. to protect the display panel from scratches.
2. Remove the rear external case.
Screws
Rear external case
3. Remove the connector A.
4. Remove the connector B.
5. Remove the connector C.
Hold the connector and pull it out. Do not twist or yank on the cable
then.
* Leave position marks on the connectors B and C to check the positions when reattaching them.
Connector B
Ribbon cable
Connector C
Rear external case
Front external case
Backlight unit (CFL unit) connectors
Connector A
UG320
7 How to Replace the Backlight Unit