Dell Vostro 2420 (Mid 2012) - Manual (Page 30)

Installing the Speakers
1. Insert and attach the left and right speakers into their respective compartments.
2. Align and route the speaker cable to the chassis.
3. Install:
a) display assembly
b) hinge cover
c) system board
d) processor
e) heat-sink fan assembly
f) USB board
g) WLAN card
h) hard drive
i) palmrest
j) memory module
k) optical drive
l) keyboard
m) SD memory card
n) battery
4. Follow the procedures in After Working Inside Your Computer .
Removing the Display Assembly
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) battery
b) hinge cover
c) keyboard
d) optical drive
e) palmrest
3. Disconnect the USB board cable from the system board to allow access to the WLAN antennae.
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