Acer Extensa 4220 TravelMate 4320/4720 and Extensa 4220/4620 Service Guide - Page 73
Removing the Middle Cover - lcd screen
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7. Using a flat screwdriver, turn the CPU socket latch counter-clockwise to release the CPU, then remove the CPU. NOTE: When installing the CPU, make sure to install the CPU with PIN 1 at the corner as shown. Removing the Middle 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. 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. Open the LCD screen all the way to facilitate the easy removal of the middle cover. Chapter 3 63