Acer Extensa 4220 TravelMate 4320/4720 and Extensa 4220/4620 Service Guide - Page 81
Removing the Touchpad Board Module
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11. Remove the screw (A) on the top panel. Step 1 Size (Quantity) M2 x L4 (2) Color Black 12. Turn the system over and remove the 11 screws (G) on the bottom panel. Torque 1.6 kgf-cm Step 1~11 Size (Quantity) M2.5 x L6 (11) 13. Gently detach the upper case from the lower case. Color Black Torque 1.6 kgf-cm Removing the Touchpad Board Module 1. See "Removing the Battery Pack" on page 51. 2. See "Removing the SD Dummy Card" on page 51. 3. See "Removing the Express Dummy Card" on page 52. 4. See "Removing the Lower Cover" on page 53. 5. See "Removing the Fan Module" on page 60. 6. See "Removing the CPU Heatsink Module" on page 61. 7. See "Removing the CPU" on page 62. 8. See "Removing the Middle Cover" on page 63. Chapter 3 71