Dell Vostro 1440 (Mid 2011) - Manual (Page 49)

Removing The Speakers
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1. Follow the procedures in Before Working On Your Computer .
2. Remove the battery .
3. Remove the SD memory card .
4. Remove the keyboard .
5. Remove the optical drive .
6. Remove the memory module .
7. Remove the palm rest .
8. Remove the hard drive .
9. Remove the WLAN card .
10. Remove the USB board .
11. Remove the heatsink and the CPU fan assembly .
12. Remove the processor .
13. Remove the system board .
14. Remove the hinge cover .
15. Remove the display assembly .
16. Release the speaker cable from the routing channel.
17. Press the securing latches and lift up the left speaker.
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