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53 Chapter 3
2. Detach the MDC cable from the main board.
3. Remove the two screws holding the modem board then disconnect the modem board from the main
board.
4. Disconnect the speaker cable from the main board.
5. Remove the screw that secure the main board.
6. Remove the two screw nuts as shown.
7. The you can detach the main board from the upper case.
8. Remove the ttwo screws that fasten the N/B heatsink.
9. Remove the N/B heatsink from the main board as shown.
10. Remove the card reader dummy card from the lower case. (For SKU with three-in-one card reader, please
remove three in one cover).
11. Remove the two screws that secure the speaker set on one side.
12. Then remove another two screws holding the speaker set on the other side.
13. Then take out the speaker set from the lower case.