Acer Extensa 5220 Service Manual page 99

19. Disconnect the speaker cable from the SPKR1 on the main board.
20. Remove the two screws (C) holding the main board.
Step Size (Quantity) Color Torque
1~2 M2 x L4 (2) Silver 1.6 kgf-cm
21. Carefully detach the main board and turn it over to access the USB board cable.
22. Detach the USB board cable from the USBCN1 on the main board.
Chapter 3 89