Dell Vostro 2521 (Early 2013) - Manual (Page 24)

i) battery
5. Follow the procedures in After Working Inside Your Computer .
Removing the Speakers
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) battery
b) access panel
c) memory module
d) hard-drive assembly
e) optical-drive assembly
f) keyboard
g) plamrest
h) wireless mini-card
i) system board
3. Peel the tape that secures the LED silicon tubes to the computer.
4. Lift and remove the LED silicon tubes from the computer.
5. Un-route the speaker cable from its routing channel and lift the speaker assembly from the computer.
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