Acer Aspire 5538 Service Guide

121Chapter 3
6.Insert the two screws securing the Mainboard and Fan to the Lower Cover as indicated.
7.Connect the Microphone Cable to the Mainboard.
StepSizeQuantityScrew Type
Mainboard M2.5*5 2 

Chapter 3122
Replacing the I/O Board
1.Connect the I/O Board Cable to the I/O Board.
2.Apply the adhesive to secure the I/O Board cable to the Lower Cover.
3.Insert the board into the lower cover so the white tab is under the securing clip in the lower cover, taking 
care to align the screw holes. 

123Chapter 3
4.Insert the single screw to secure the I/O Board to the Lower Cover.
5.Connect the cable to the Mainboard.
StepSizeQuantityScrew Type
I/O Board M2.5*6 1 

Chapter 3124
6.Connect the FFC to the Mainboard and close the locking latch.
Replacing the Bluetooth Module
1.Insert the Bluetooth Module right side first and press down on the top to attach it to the Lower Cover.
2.Connect the cable to the Bluetooth Module. 

125Chapter 3
3.Connect the Bluetooth cable to the Mainboard.
4.Apply the adhesive to secure the cable in place.
Replacing the Media Board
1.Insert the Media Board FFC through the cover as shown. 

Chapter 3126
2.Holding the mylar back, insert the Media Board under the securing clips in the upper cover and place on 
the upper cover so the aligning pins are in the holes.
3.Adhere the mylar to the Media Board.
4.Place the securing bracket on the Media Board so the tab penetrates the slot on the media board. 

127Chapter 3
5.Insert the single screw to secure the Media Board to the Lower Cover.
Replacing the Speaker Modules
1.Place the right side speaker onto the Lower Cover as shown.
StepSizeQuantityScrew Type
Media Board M2.5*3 1 

Chapter 3128
2.Place the right side speaker into the Lower Cover and peel back the mylar to expose the wire guides as 
shown.
3.Peel back the mylar and insert the Speaker Cable into the cable channel. Ensure that the cable passes 
under all cable clips. 

129Chapter 3
4.Insert the four screws to secure the Speakers to the Upper Cover.
Replacing the Power Board
1.Insert the Power Board into the Lower Cover so the slot on the Power Board hooks onto the securing tab 
in the upper cover.
IMPORTANT:The FFC is soldered to the power board. Take care when lifting to minimize bending of the 
connection, lest breakage occur.
2.Adhere the FFC to the Speaker Module.
StepSizeQuantityScrew Type
Speaker Module M2.5*3 4 

Chapter 3130
3.Insert the single screw to secure the Power Board to the Lower Cover.
Replacing the Touchpad Bracket
1.Slide the Touchpad Bracket into the slots in the upper cover.
StepSizeQuantityScrew Type
Power Board M2.5*3 1