Acer 420 - Manual (Page 78)

70 Chapter 3
10. Release the CPU lock.
11. Remove the CPU from the main unit carefully.
12. Tear off the tape that fastens the antenna line to the main board. Then take the antenna line out from the
other side.
13. Remove the screw here.
14. Unscrew the screw as shown here.
15. Then remove the main board assembly from the lower case.
16. Unscrew the four screw nuts that secure the I/O bracket.
17. Remove the screw on the main frame.
18. Disconnect one fan connector.
19. Disconnect another fan connector.
20. Remove the four screws that fasten the I/O bracket to the main frame.
21. Detach the I/O bracket from the main board.
TM420.book Page 70 Monday, September 23, 2002 10:27 AM