Acer 4715Z - Manual (Page 84)

74 Chapter 3
20. Detach the modem board from the mainboard.
Removing the RTC Battery
1. See “Removing the Battery Pack” on page 49.
2. See “Removing the Express Dummy Card” on page 49.
3. See “Removing the Lower Cover” on page 50.
4. See “Removing the DIMM” on page 51.
5. See “Removing the WLAN Board Module” on page 52.
6. See “Removing the Hard Disk Drive Module” on page 53.
7. See “Removing the Optical Drive Module” on page 54.
8. See “Removing the CPU Heatsink Module” on page 57.
9. See “Removing the CPU” on page 58.
10. See “Removing the Keyboard” on page 59.
11. See “Removing the Middle Cover” on page 60.
12. See “Removing the LCD Module” on page 61.
13. See “Separating the Upper Case from the Lower Case” on page 63.
14. See “Removing the Audio Board” on page 68.
15. See “Removing the USB Board” on page 70.
16. See “Removing the Mainboard” on page 71.
17. Detach the battery cable from the mainboard.