Acer Aspire 7740 Service Guide

Chapter 365
19.Release from the latches and detach the button board.
20.Pry to loosen the touchpad board.   
WARNING:  The touchpad board is glued to the upper case, only remove the touchpad board if it is defective. 

66Chapter 3
21.Detach the touchpad board from the upper case. 
 Note: Circuit boards > 10cm
2 has been highlighted with the yellow square as shown in the figure 
above. Please detach the circuit boards and follow the local regulations for disposal.
Removing the Left Speaker
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Optical Drive Module” on page 41.
3.See “Removing the Back Cover” on page 42.
4.See “Removing the Hard Disk Drive Module” on page 43.
5.See “Removing the Wireless LAN...

Chapter 367
13.Remove the two screws (F) securing the left speaker to the upper case. 
14.Remove the left speaker from the upper board.
NOTE: Be careful when removing the left speaker as it is held in place by plastic tabs.
Removing the USB Board Module
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Optical Drive Module” on page 41.
3.See “Removing the Back Cover” on page 42.
4.See “Removing the Hard Disk Drive Module” on page 43.
5.See “Removing the Wireless LAN Card” on page 44....

68Chapter 3
7.See “Removing the Heatsink Module” on page 49.
8.See “Removing the CPU” on page 51.
9.See “Removing the Middle Cover” on page 53.
10.See “Removing the Keyboard” on page 53.
11 .See “Removing the LCD Module” on page 55.
12.See “Separating the Upper Case from the Lower Case” on page 58.
13.Disconnect the USB board cable from the main board.
14.Remove the one screw (C) securing the USB board to the lower case.
Size (Quantity)ColorTo r q u ePart No.
M2.5 x L4 (1) Black 3.0 kgf-cm 86.00H59.734 

Chapter 369
15.Remove the USB board module from the lower case.    

70Chapter 3
Removing the Modem Board
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Optical Drive Module” on page 41.
3.See “Removing the Back Cover” on page 42.
4.See “Removing the Hard Disk Drive Module” on page 43.
5.See “Removing the Wireless LAN Card” on page 44.
6.See “Removing the DIMM Module” on page 46.
7.See “Removing the Heatsink Module” on page 49.
8.See “Removing the CPU” on page 51.
9.See “Removing the Middle Cover” on page 53.
10.See “Removing the Keyboard” on page 53....

Chapter 371
14.Remove the modem board from the lower case.
15.Disconnect the modem cable from the modem board.
Removing the Bluetooth Module
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Optical Drive Module” on page 41.
3.See “Removing the Back Cover” on page 42.
4.See “Removing the Hard Disk Drive Module” on page 43.
5.See “Removing the Wireless LAN Card” on page 44.
6.See “Removing the DIMM Module” on page 46.
7.See “Removing the Heatsink Module” on page 49.
8.See “Removing the...

72Chapter 3
10.See “Removing the Keyboard” on page 53.
11 .See “Removing the LCD Module” on page 55.
12.See “Separating the Upper Case from the Lower Case” on page 58.
13.Disconnect the Bluetooth cable from the main board.
14.Remove the Bluetooth module from the lower case.
NOTE: The Bluetooth module is glued to the lower case, take care when removing it.
Removing the Microphone
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Optical Drive Module” on page 41.
3.See “Removing the Back...

Chapter 373
7.See “Removing the Heatsink Module” on page 49.
8.See “Removing the CPU” on page 51.
9.See “Removing the Middle Cover” on page 53.
10.See “Removing the Keyboard” on page 53.
11 .See “Removing the LCD Module” on page 55.
12.See “Separating the Upper Case from the Lower Case” on page 58.
13.Remove the tape securing the microphone cable.
14.Disconnect the microphone cable from the main board.  

74Chapter 3
15.Remove the microphone from the system. 
Removing the Main Board
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Optical Drive Module” on page 41.
3.See “Removing the Back Cover” on page 42.
4.See “Removing the Hard Disk Drive Module” on page 43.
5.See “Removing the Wireless LAN Card” on page 44.
6.See “Removing the DIMM Module” on page 46.
7.See “Removing the Heatsink Module” on page 49.
8.See “Removing the CPU” on page 51.
9.See “Removing the Middle Cover” on page 53....