Acer Aspire 5740 Service Guide

Chapter 353
15.Remove the two screws (G) from the left and right hinge of the LCD module.  
16.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 36.
2.See “Removing the SD Dummy Card” on page 37.
3.See “Removing the DIMM Module” on page 38.
4.See “Removing the Back Cover” on page 39.
5.See “Removing the Hard Disk...

54Chapter 3
11 .Remove the three screws (F) from the middle cover.
12. Release the latch and disconnect the volume button board cable from its connector the main board.
13. Release the latch and disconnect the touch pad cable from TPCN1 connector on the main board.
Size (Quantity)ColorTo r q u ePart No.
M2 x L4 (3) Silver 1.6 kgf-cm 86.9A552.4R0 

Chapter 355
14.Release the latch and disconnect the touchpad button cable from FPCN1 connector on the main board.
15.Disconnect the speaker cable from its connector on the main board.
16. Disconnect the microphone connector from the main board and remove the microphone. 

56Chapter 3
17.Remove the ten screws (A) securing the lower case to the upper case.  
18.Gently detach the upper case from the lower case.
19.Remove the upper case.
Size (Quantity)ColorTo r q u ePart No.
M2.5 x L8 (10) Black 3.0 kgf-cm 86.00E34.738 

Chapter 357
Removing the Touchpad and Touchpad Button Boards
1.See “Removing the Battery Pack” on page 36.
2.See “Removing the SD Dummy Card” on page 37.
3.See “Removing the DIMM Module” on page 38.
4.See “Removing the Back Cover” on page 39.
5.See “Removing the Hard Disk Drive Module” on page 40.
6.See “Removing the WLAN Modules” on page 43.
7.See “Removing the Optical Drive Module” on page 44.
8.See “Removing the Middle Cover” on page 47.
9.See “Removing the Keyboard” on page 49.
10.See “Removing the...

58Chapter 3
14.Release the touchpad button board metal bracket from the latches and detach it from the upper case.
15.Release the touchpad button board from the latches and detach it from the upper case.    

Chapter 359
16.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.
Note: Circuit board >10 cm² has been highlighted with the yellow rectangle as above image shows. 
Please detach the Circuit boards and follow local regulations for disposal. 

60Chapter 3
17.Detach the touchpad board from the upper case. 
 Note: Circuit boards > 10cm
2 has been highlighted with the yellow rectangle as shown in the figure 
above. Please detach the circuit boards and follow the local regulations for disposal.
Removing the Left Speaker Module
1.See “Removing the Battery Pack” on page 36.
2.See “Removing the SD Dummy Card” on page 37.
3.See “Removing the DIMM Module” on page 38.
4.See “Removing the Back Cover” on page 39.
5.See “Removing the Hard Disk Drive...

Chapter 361
12.Remove the two screws (E) securing the left speaker module and remove it from the upper case. 
13.Detach the left speaker module.
Removing the USB Board Module
1.See “Removing the Battery Pack” on page 36.
2.See “Removing the SD Dummy Card” on page 37.
3.See “Removing the DIMM Module” on page 38.
4.See “Removing the Back Cover” on page 39.
5.See “Removing the Hard Disk Drive Module” on page 40.
6.See “Removing the WLAN Modules” on page 43.
7.See “Removing the Optical Drive Module” on page...

62Chapter 3
12.Disconnect the cables from the USB board module.    
13.Remove the one screw (F) securing the USB board module to the lower case. 
Size (Quantity)ColorTo r q u ePart No.
M2 x L4 (1) Silver 1.6 kgf-cm 86.9A552.4R0