Acer Extensa 4220 TravelMate 4320/4720 and Extensa 4220/4620 Service Guide - Page 85
Remove the Daughter Board
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12. Remove the screw (G) on the LED indicators board. Step 1 Size (Quantity) M2 x L3 Color Silver 13. Turn the LED board over, then detach the LED cable from the board. Torque 1.6 kgf-cm 14. Disconnect the LED board cable from the board, then remove the board. Remove the Daughter Board 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. 9. See "Removing the Keyboard" on page 64. 10. See "Removing the LCD Module" on page 67. Chapter 3 75