Acer Aspire 7740 Service Guide

							Chapter 375
17.Remove the tape securing the right speaker cable to the main board.
18.Disconnect the right speaker cable from the main board. 
						

							76Chapter 3
19.Remove the one screw (G) securing the main board in place.    
20.Lift the main board gently and remove it carefully from the lower case..
 Note: RTC battery has been highlighted with the yellow circle as shown in the figure above.  Please 
detach the RTC battery and follow local regulations for disposal.
 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.
Size (Quantity)ColorTo r q u ePart No.
M2 x L3 (1) Silver 1.6 kgf-cm 86.9A522.3R0 
						

							Chapter 377
Removing the Right 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 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.
11 .See “Removing the LCD Module” on page 55.
12.See “Separating the Upper Case from the Lower Case” on page 58.
13.See “Removing the USB Board Module” on page 67.
14.See “Removing the Modem Board” on page 70.
15.See “Removing the Bluetooth Module” on page 71.
16.See “Removing the Microphone” on page 72.
17.See “Removing the Main Board” on page 74.
18.Remove the tapes securing the right speaker cables to the lower case. 
						

							78Chapter 3
19.Remove the two screws (C) securing the right speaker to the lower case. 
20.Remove the right speaker from the lower case.
Size (Quantity)ColorTo r q u ePart No.
M2.5 x L4 (2) Black 3.0 kgf-cm 86.00H59.734 
						

							Chapter 379
 LCD Module Disassembly Process
LCD Module Disassembly Flowchart
ItemScrewColorPart No.
E M2.5 x L5 Black 86.00F87.735
G M2 x L3 Silver 86.9A522.3R0
LCD MODULE
LCD BEZEL
E x 6
LCD ASSEMBLY
LEFT LCD
BRACKETG x 3RIGHT LCD
BRACKETLCD FPC
CABLE
LCD BACK PANEL
ANTENNAS
LCD MODULE DISASSEMBLY
WEB
CAMERA
LEFT HINGERIGHT HINGE E x 2E x 2
G x 3 
						

							80Chapter 3
Removing the LCD Bezel
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Back Cover” on page 42.
3.See “Removing the Wireless LAN Card” on page 44.
4.See “Removing the Middle Cover” on page 53.
5.See “Removing the Keyboard” on page 53.
6.See “Removing the LCD Module” on page 55.
7.Remove the six rubber screw covers at the top and bottom of the LCD bezel.    
8.Remove the six screws (E) at the top and bottom of the LCD bezel.     
Size (Quantity)ColorTo r q u ePart No.
M2.5 x L5 (6) Black 3.0 kgf-cm 86.00F87.735 
						

							Chapter 381
9. Carefully pry open the LCD bezel and remove it from the LCD panel. 
Removing the LCD panel with the Brackets
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Back Cover” on page 42.
3.See “Removing the Wireless LAN Card” on page 44.
4.See “Removing the Middle Cover” on page 53.
5.See “Removing the Keyboard” on page 53.
6.See “Removing the LCD Module” on page 55.
7.See “Removing the LCD Bezel” on page 80. 
						

							82Chapter 3
8.Remove the four screws (E) on the left and right hinges as shown. 
9.Detach the webcam cable from the webcam module.
Size (Quantity)ColorTo r q u ePart No.
M2.5 x L5 (4) Black 3.0 kgf-cm 86.00F87.735 
						

							Chapter 383
10.Remove the LCD panel with brackets from the back cover.  
						

							84Chapter 3
Removing the LCD Brackets
1.See “Removing the Battery Pack” on page 40.
2.See “Removing the Back Cover” on page 42.
3.See “Removing the Wireless LAN Card” on page 44.
4.See “Removing the Middle Cover” on page 53.
5.See “Removing the Keyboard” on page 53.
6.See “Removing the LCD Module” on page 55.
7.See “Removing the LCD Bezel” on page 80.
8.See “Removing the LCD panel with the Brackets” on page 81.
9.Remove the six screws (G) securing the left and right LCD brackets; then remove the left and right 
brackets. 
Size (Quantity)ColorTo r q u ePart No.
M2 x L3 (G) SIlver 1.6 kgf-cm 86.9A522.3R0