Acer Aspire One Model Ao751 Service Guide

Chapter 361
Removing the Thermal Module
1.Remove the Mainboard. See “Removing the Mainboard” on page 55.
2.Turn the Mainboard CPU side up, and place it on a clean surface.
3.Grip the cable connector and disconnect the Fan cable from the mainboard.
IMPORTANT:Do not grip the cable itself to prevent stripping.
4.Remove the three securing screws from the heatsink.
StepSizeQuantityScrew Type
Thermal Module M2*3(NL) 3 

62Chapter 3
5.Remove the thermal module. 

Chapter 363
LCD Module Reassembly Procedure
Replacing the LCD Brackets and FPC Cable
1.Replace the four LCD brackets as shown. 
IMPORTANT:The indicator pairs on the brackets must be located diagonally opposite each other.
2.Turn the LCD panel over and connect the FPC cable to the panel.
3.Secure the cable with the adhesive strips as shown. 

64Chapter 3
Replacing the LCD Panel
IMPORTANT:Before installing, take care of the following items:
•All cabling must be tucked tightly and close to the panel
•Check that the cables are tucked under the hinge brackets and run on the outside of the hinges
1.Place the LCD Panel in to the case as shown.2.Replace the left hinge as shown.
3.Replace the five securing screws as shown. 

Chapter 365
Replacing the Mic Board
Replacing the Camera Board
1.Replace the Mic board in to the case.2.Connect the MIC cable as shown.
1.Replace the camera board in to the case.2.Connect the camera cable as shown. 

66Chapter 3
Replacing the LCD Bezel
1.Starting from the bottom, locate the bezel correctly and press down the edges until there are no gaps 
between the bezel and the LCD Module.
2.Replace the six screws and the rubber screw caps provided. 

Chapter 367
Main Module Reassembly Procedure
Replacing the Thermal Module
Replacing the DIMM Module
IMPORTANT:The Aspire one SSD SKU does not come standard with DIMM modules. The modules are 
optional components. 1.Replace the Fan module on the Mainboard.2.Replace the three screws in the order shown, 
starting with number 1.
3.Connect the Fan cable to the Mainboard.
1.Insert DIMM1 in to the socket.2.Press down to locate DIMM correctly. 

68Chapter 3
Replacing the Hard Disk Drive Module
IMPORTANT:The HDD is only available on the Aspire one HDD computer SKU.
Replacing the Speaker Module
1.Place the HDD in the HDD carrier.2.Replace the four screws (two each side) to secure 
the carrier.
3.Hold the carrier and slide the HDD toward the 
mainboard until the interface connects.4.Replace the two securing screws.
1.Replace the Speaker Module in the lower cover.2.Replace the four securing screws. 

Chapter 369
3.Replace the two adhesive strips. 

70Chapter 3
Replacing the Mainboard
IMPORTANT:Before replacing the motherboard, take care of the following items:
•Check that LED isn’t broken (top of mainboard)
•Check that the mylar next to the CPU module isn’t damaged (bottom of mainboard)
•Check the thermal power supply cable is connected properly 
1.Insert the mainboard left side first into the lower 
cover.2.Replace the securing screw on the Mainboard.
3.Connect the speaker cable to the mainboard.