Dell Vostro 2421 (Early 2013) - Manual (Page 28)

5. Lift the display assembly off the computer.
Installing the Display Assembly
1. Place the display assembly on the computer.
2. Route the display cable to its channels.
3. Install:
a) system board
b) palmrest
c) keyboard
d) optical-drive assembly
e) hard-drive assembly
f) memory module
g) access panel
h) battery
4. Follow the procedures in After Working Inside Your Computer .
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