Acer Aspire 7120 Service Guide

Chapter 383
11 .Carefully remove the LCD module from the base unit. 
NOTE: When connecting the cable back to the unit, please note that the cable should be routed well.
Separating the Upper Case from the Lower Case
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD...

84Chapter 3
20.Disconnect the DC in cable from the main board.
21.Disconnect the Launch board cable from the SWITCHCN1 from the main board.  
22.Disconnect the fingerprint cable (select model only) from the FPCN1 connector on the main board. 
23.Disconnect the touchpad cable from the TOUCHPAD1 on the main board.  

Chapter 385
24.Remove the twenty screws (A) on the bottom and top panel.  
25.Gently pry the upper case from the main unit. 
26.Remove the upper case from the main unit. 
Removing the Launch Board
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD Bracket and Connector”...

86Chapter 3
12.See “Removing the Heatsink Fan Module” on page 74.
13.See “Removing the CPU and VGA Heatsink Module” on page 75.
14.See “Removing the CPU” on page 76.
15.See “Removing the VGA board (for Discrete model only)” on page 77.
16.See “Removing the Middle Cover and the Power Board” on page 78.
17.See “Removing the Keyboard” on page 79.
18.See “Removing the LCD Module” on page 81.
19.See “Separating the Upper Case from the Lower Case” on page 83.
20.Remove the one screw (J) holding the launch...

Chapter 387
14.See “Removing the CPU” on page 76.
15.See “Removing the VGA board (for Discrete model only)” on page 77.
16.See “Removing the Middle Cover and the Power Board” on page 78.
17.See “Removing the Keyboard” on page 79.
18.See “Removing the LCD Module” on page 81.
19.See “Separating the Upper Case from the Lower Case” on page 83.
20.Remove the fingerprint cable from the fingerprint board. 
21.Remove the touch pad cable from the touch pad board.   

88Chapter 3
22.Remove the four screws (C) on the touch pad bracket and remove the touch pad bracket from the upper 
case. 
 
23.Remove the fingerprint board from the upper case.  
StepSize (Quantity)ColorTorque
1~4  M2 x L4 (4) Silver 1.6 kgf-cm 

Chapter 389
24.Carefully pry loose and remove the touch pad board. 
WARNING:The touchpad board is glued to the upper case, only remove the touchpad board if it is defective.
Removing the Main Board
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD Bracket and Connector”...

90Chapter 3
20.Disconnect the USB cable from the main board. 
21.Disconnect the Bluetooth cable from the BLUE1 connector on the main board. 
22.Disconnect the speaker cable from the SPKR1 on the main board. 
23.Remove the four screws (C) holding the main board. 
StepSize (Quantity)ColorTo r q u e
1~4 M2 x L4 (4) Silver 1.6 kgf-cm 

Chapter 391
24.Carefully remove the main board from the bottom panel.  
Removing the ODD Board Module
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD Bracket and Connector” on page 66.
7.See “Removing the DIMM” on page 68.
8.See “Removing the WLAN Board Modules” on...

92Chapter 3
Removing the Speaker Modules
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD Bracket and Connector” on page 66.
7.See “Removing the DIMM” on page 68.
8.See “Removing the WLAN Board Modules” on page 68.
9.See “Removing the Hard Disk Drive Module” on page...