Dell OptiPlex 9020 All In One (Mid 2013) - Manual (Page 39)

6. Remove the screws that secure the display bracket to the display panel. Remove the display bracket from the
display panel.
Installing the Display Panel
1. Tighten the screws to secure the display bracket to the display panel.
2. Place the display panel on the chassis.
3. Place the base panel on the chassis.
4. Tighten the screws to secure the base panel to the chassis.
5. Connect the LVDS cable to the display panel.
6. Install:
a) system board
b) antenna module
c) speakers
d) processor fan
e) heat-sink assembly
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