Acer 7420 Laptop User Manual


 
Chapter 3 85
24. Remove the twenty screws (A) on the bottom and top panel.
25. Gently pry the upper case from the main unit.
26. Remove the upper case from the main unit.
Removing the Launch Board
1. See “Removing the Battery Pack” on page 62.
2. See “Removing the SD dummy card” on page 63.
3. See “Removing the PC and ExpressCard dummy cards” on page 63.
4. See “Removing the Lower Cover” on page 64.
5. See “Removing the Secondary HDD Cover” on page 65.
6. See “Removing the Secondary HDD Bracket and Connector” on page 66.
7. See “Removing the DIMM” on page 68.
8. See “Removing the WLAN Board Modules” on page 68.
9. See “Removing the Hard Disk Drive Module” on page 69.
10. See “Removing the Optical Drive Module” on page 70.
11. See “Removing the Modem Board” on page 73.
Step Size (Quantity) Color Torque
1~20 M2.5 x L6 (20) Black 3.0 kgf-cm