Acer Aspire 8940 Service Guide

Chapter 3161
Replacing the TouchPad Board
IMPORTANT: The TouchPad is supplied as part of the Upper Cover. If the TouchPad is defective, replace the entire 
Upper Cover.
1.Insert the board into the Upper Cover. Take care to align the mounting pins with the holes on the board. 
2.Remove the two screws securing the TouchPad Board in place.
StepSizeQuantityScrew Type
Finger Print 
ReaderM2*3 2 

162Chapter 3
3.Insert the FFC through the slot in the Upper Cover and adhere as shown.
4.Connect the Mainboard FFC to the TouchPad Board and close the locking latch.
5.Connect the TouchPad FFC to the TouchPad Board and close the locking latch. 

Chapter 3163
6.Connect the TouchPad FFC to the TouchPad and close the locking latch.
7.Apply the FFC to the Upper Cover as shown. 

164Chapter 3
Replacing the Finger Print Reader Bracket
1.Insert the tabs in the bottom of the fingerprint reader bracket into the upper cover and rotate  the bracket into 
place as shown.
2.Insert the two screws to secure the bracket to the Upper Cover.
StepSizeQuantityScrew Type
Finger Print 
Reader BracketM2*3 2 

Chapter 3165
Replacing the TouchPad Lock Board
1.Slide the Touchpad board under the securing tab and place into the Upper Cover.
2.Insert the single screw to secure the board to the Upper Cover.
3.Connect the Finger Print Reader FFC to the TouchPad and close the locking latch.
StepSizeQuantityScrew Type
TouchPad Lock 
BoardM2*3 1 

166Chapter 3
4.Connect the TouchPad Lock Board FFC to the TouchPad Lock Board and close the locking latch.
5.Press the FFC onto the adhesive in the Upper Cover to secure it in place. 

Chapter 3167
Replacing the Media Board
1.Place the media board into the Upper Cover and press into place to secure the Media Board to the Upper 
Cover.
2.Replace the FFC into the Upper Cover by pressing the FFC onto the adhesive.
3.Connect the Media Board FFC to the Media Board and close the locking latch on the FFC. 

168Chapter 3
Replacing the Power Saving Board FFC
1.Insert the FFC into the slot in the Upper Cover as shown.
2.Press the FFC and adhesive protector onto the Upper Cover as shown. 

Chapter 3169
Replacing the Volume Control Board
1.Lift the board clear of the Upper Cover.
2.Replace the two screws to secure the board to the Upper Cover.
3.Connect the Volume Control FFC to the Volume Control Board and close the locking latch 
StepSizeQuantityScrew Type
Volume Control 
BoardM2*3 2 

170Chapter 3
4.Connect the Volume Control FFC to the Media Board and close the locking latch