Acer Aspire 4310g Service Guide

							Chapter 361
Removing the CPU 
1.See “Removing the Battery Pack” on page 51.
2.See “Removing the Lower Cover” on page 53.
3.See “Removing the CPU Heatsink Module” on page 60.
4.Using a flat screwdriver, turn the CPU socket latch to the unlock position by aligning the latch to the unlock 
symbol, then remove the CPU.
NOTE: When installing the CPU, make sure to install the CPU with PIN 1 at the corner as shown.  
						

							62Chapter 3
Removing the Keyboard
1.See “Removing the Battery Pack” on page 51.
2.Press the plastic flat-blade screwdriver to the notches, shown below, to disengage the keyboard from the 
main unit. 
3.Carefully pry up and out the keyboard and turn it over. 
4.Disconnect the keyboard cable from the mainboard to remove the keyboard.    
						

							Chapter 363
Removing the Middle Cover
1.See “Removing the Battery Pack” on page 51.
2.See “Removing the Keyboard” on page 62.
3.Open the LCD screen all the way to facilitate the easy removal of the middle cover. 
4.Carefully insert the flat screwdriver between the middle cover and lower case and gently pry up the middle 
cover. 
5.Continue prying the middle cover until the full length of the cover releases from the main unit, then turn it 
over.  
6.Detach the power board cable from the power board, then remove the middle cover.  
						

							64Chapter 3
Removing the Power Board
1.See “Removing the Battery Pack” on page 51.
2.See “Removing the Keyboard” on page 62.
3.See “Removing the Middle Cover” on page 63.
4.Remove the three screws (A) from the power board. 
5.Remove the power board.
Removing the LCD Module
1.See “Removing the Battery Pack” on page 51.
2.See “Removing the Lower Cover” on page 53.
3.See “Removing the Keyboard” on page 62.
4.See “Removing the Middle Cover” on page 63.
5.Disconnect the microphone cable from the mainboard. 
StepSize (Quantity)ColorTo r q u e
1~3 M2 x L4 (3) Black 1.6 kgf-cm 
						

							Chapter 365
6.Disconnect the LCD coaxial cable from the mainboard.
7.Pull out the antenna cables as shown. 
8.Turn the system over and remove the two screws (F) from the base of the unit. 
StepSize (Quantity)ColorTo r q u e
1~2 M2.5 x L8 (2) Black 4.0 kgf-cm 
						

							66Chapter 3
9.Remove the two screws (F) from the left and right hinge of the LCD module. 
10.Carefully remove the LCD module from the base unit. 
NOTE: Make sure the cables are routed well before connecting the cables back to the unit.
Separating the Upper Case from the Lower Case
1.See “Removing the Battery Pack” on page 51.
2.See “Removing the SD Dummy Card” on page 52.
3.See “Removing the Express Dummy Card” on page 52.
4.See “Removing the Lower Cover” on page 53.
5.See “Removing the DIMM” on page 54.
6.See “Removing the WLAN Board Module” on page 55.
7.See “Removing the Hard Disk Drive Module” on page 56.
8.See “Removing the Optical Drive Module” on page 57.
9.See “Removing the CPU Heatsink Module” on page 60.
10.See “Removing the CPU” on page 61.
11 .See “Removing the Keyboard” on page 62.
12.See “Removing the Middle Cover” on page 63.
13.See “Removing the LCD Module” on page 64.
StepSize (Quantity)ColorTo r q u e
1~2 M2.5 x L8 (2) Black 4.0 kgf-cm 
						

							Chapter 367
14.Remove the three screws (A) on the upper case.
15.Disconnect the speaker cable from the mainboard.
16.Detach the launch board cable from the mainboard.
StepSize (Quantity)ColorTo r q u e
1~3 M2 x L4 (3) Black 1.6 kgf-cm 
						

							68Chapter 3
17.Detach the touchpad cable from the mainboard.
18.Detach the power board cable from the mainboard.
19.Turn the system over and remove the eleven screws (C) on the lower case. 
StepSize (Quantity)ColorTo r q u e
1~11 M2 x L6 (11) Black 3.0 kgf-cm 
						

							Chapter 369
20.Gently detach the upper case from the lower case. 
Removing the Speaker Modules
1.See “Removing the Battery Pack” on page 51.
2.See “Removing the SD Dummy Card” on page 52.
3.See “Removing the Express Dummy Card” on page 52.
4.See “Removing the Lower Cover” on page 53.
5.See “Removing the DIMM” on page 54.
6.See “Removing the WLAN Board Module” on page 55.
7.See “Removing the Hard Disk Drive Module” on page 56.
8.See “Removing the Optical Drive Module” on page 57.
9.See “Removing the CPU Heatsink Module” on page 60.
10.See “Removing the CPU” on page 61.
11 .See “Removing the Keyboard” on page 62.
12.See “Removing the Middle Cover” on page 63.
13.See “Removing the LCD Module” on page 64.
14.See “Separating the Upper Case from the Lower Case” on page 66.
15.Remove the four screws on the speaker modules. 
StepSize (Quantity)ColorTo r q u e
1~4 N/A Silver 1.6 kgf-cm 
						

							70Chapter 3
16.Remove the speakers. 
Removing the Launch Board
1.See “Removing the Battery Pack” on page 51.
2.See “Removing the SD Dummy Card” on page 52.
3.See “Removing the Express Dummy Card” on page 52.
4.See “Removing the Lower Cover” on page 53.
5.See “Removing the DIMM” on page 54.
6.See “Removing the WLAN Board Module” on page 55.
7.See “Removing the Hard Disk Drive Module” on page 56.
8.See “Removing the Optical Drive Module” on page 57.
9.See “Removing the CPU Heatsink Module” on page 60.
10.See “Removing the CPU” on page 61.
11 .See “Removing the Keyboard” on page 62.
12.See “Removing the Middle Cover” on page 63.
13.See “Removing the LCD Module” on page 64.
14.See “Separating the Upper Case from the Lower Case” on page 66.
15.Remove the two screws (A) from the launch board bracket.
StepSize (Quantity)ColorTo r q u e
1~2 M2 x L4 (2) Black 1.6 kgf-cm