Acer Aspire 5739 Service Guide

Chapter 3111
7.Reconnect the four FFC cables to the mainboard.
Connect A as shown and lock the connector. Connect B as shown and lock the connector.
Connect C as shown and lock the connector.
 Connect D as shown and lock the connector.
B
DA
C 

11 2Chapter 3
8.Replace the 13 securing screws on the top panel.
 
9.Turn the computer over. Replace the nine screws on the bottom panel.
 
StepSizeQuantityScrew Type
Upper Cover
(red callout)M2.5*6 13
StepSizeQuantityScrew Type
Upper Cover M2.5*6 9 

Chapter 311 3
Replacing the LCD Module
10.Carefully place the LCD Module into the chassis, making sure to align the mounting pins on the LCD brackets 
with the well son the Lower Cover.
11 .Replace the two securing screws for the left LCD hinge.
StepSizeQuantityScrew Type
LCD Module M2.5*5 2 

11 4Chapter 3
12.Replace the two securing screws for the right LCD hinge.
13.Connect the LCD cable to the Mainboard and insert the cable into the cable channel as shown.
14.Rest the computer on its side with the LCD Module open and push the Antenna cable through the chassis as 
shown.
StepSizeQuantityScrew Type
LCD Module M2.5*5 2 

Chapter 311 5
15.Starting from the LCD module, insert the Antenna cable into the cable channels as shown. Note how the cable 
hooks onto the cable chennel in the speaker module, then is adhired to the pin on the Kensington Lock before 
passing into the cabel channel on the upper cover
16.Close the lid, turn the computer over, and replace the two screws to secure the LCD panel as shown.
StepSizeQuantityScrew Type
LCD Module M2.5*5 2 

11 6Chapter 3
Replacing the Keyboard
Replacing the Power Switch Board
1.Insert the the Power Board into the Switch Cover by sliding it under the securing tab as shown. 1.Place the Keyboard on the Upper Cover, face up 
and reconnect the FFC cable to the Mainboard.2.Insert the Keyboard, front edge first, into the Upper 
Cover as shown. Ensure that the six tabs are 
correctly seated.
3.Press down both sides of the keyboard to secure it in place. 

Chapter 311 7
2.Replace the three screws to secure the Power Save Board to the Switch Cover as shown.
Replacing the Power Save Board
3.Replace the two screws to secure the Power Save Board to the Switch Cover as shown.
StepSizeQuantityScrew Type
Switch Cover
(red callout)M2.5*4 3
StepSizeQuantityScrew Type
Switch Cover
(red callout)M2.5*4 2 

11 8Chapter 3
4.Connect the Power Save Board to the Function Board by inserting the FFC and closing the FFC lock as 
shown.
Replacing the Switch Cover
CAUTION: Using tools to remove the Switch Cover may cause damage to the outer casing. It is 
recommended that only fingers are used to remove the Switch Cover.
1.See “Removing the Battery Pack” on page 49.
2.See “Removing the Hinge Covers” on page 63.
3.Place the switch board on the keyboard.
4.Connect the power board to the main unit by inserting the FFC...

Chapter 311 9
5.Connect the function board to the main unit by inserting the FFC and closing the FFC lock as shown.
6.Using both hands, rotate the Switch Cover into place, making sure the pins in the lower left and right corners 
are under the upper cover.
IMPORTANT:Make sure that the six tabs along the keyboard edge are on top of the keyboard and hold it in 
place.
7.Push the switch cover into place.
8.Close the LCD module and turn the computer over. 

120Chapter 3
9.Replace the six screws on the bottom of the computer.
Replacing the Hinge Covers
IMPORTANT:The left and right Hinge Covers are shaped differently and marked L and R on the inside. Ensure 
that the correct cover is used during reassembly. 
StepSizeQuantityScrew Type
Switch Cover
(red callout)M2.5*6 6
Switch Cover
(cyan callout)M2.5*4 2
1.Align the Hinge Covers screw hole side up and slide them onto the hinge assemblies.