Acer Extensa 4220 - Frequently Asked Questions; Power On Issues; Screen Display Problems

Chapter 3 53
Removing the Lower Cover
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. Loosen the four screws (A) on the lower cover.
5. Remove the screw (B) on the lower cover.
6. Use a plastic screw driver to pry open the lower cover.
7. Remove the lower cover from the lower case.
Removing the DIMM
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.
Step Size (Quantity) Color Torque
1~4 M2 x L4 (4) Black 1.6 kgf-cm
Step Size (Quantity) Color Torque
5 M2 x L18 1.6 kgf-cm
SG_TM4720_4320_Book.book Page 53 Friday, April 20, 2007 11:14 AM