Acer Aspire 9120 Service Guide

Chapter 365
Removing the Battery Pack
1.Slide the battery latch then remove the battery.
  

66Chapter 3
Removing the HDD Module/Memory/System Fan/Thermal Module/
CPU/ODD Module and LCD Module 
Removing the HDD Module
1.Remove the two screws fastening the HDD door.
2.Detach the HDD door from the notebook.
3.Pull the HDD module outwards to disconnect the HDD module from the main board.
4.Take out the HDD module carefully.
Removing the Memory/System Fan/Thermal Module/CPU
1.Remove the six screws fastening the thermal door. (M2.5*15(NL) for red circle; M2*3(NL) for yellow 
circle)
2.Detach the...

Chapter 367
6.Remove the two screws fastening the system fan. 
7.Take out the system fan from the main unit.
8.Disconnect the TV tuner antenna.
9.Then pop out the TV tuner and remove it from the main unit.
10.Tear the tape fastening the wireless LAN card.
11 .Remove the two screws holding the wireless LAN card.
12.Disconnect the wireless LAN antennae.
13.Remove the wireless LAN card from the main unit.
14.Take out the wireless LAN antenna set from the fastening hook. 

68Chapter 3
15.Remove the four screws fastening the thermal module.
16.Then detach the thermal module carefully.
17.Use a flat-headed screwdriver to release the CPU lock (Turn anti-clockwise).
18.Detach the CPU from the CPU socket carefully.
19.Tear off the tape fastening the antenna set.
20.Then remove the antenna protection cover.
21.Remove the screw holding the mini cover.
22.Detach the mini cover from the main unit. 

Chapter 369
Removing the ODD Module
1.First, remove the screw fastening the ODD module as shown.
2.Push the ODD module outwards then remove it.
Removing the LCD Module
1.Open the LCD module as shown (See the left and the middle picture).
2.Detach the middle cover from the main unit carefully.
3.Remove the screw fastening the keyboard.
4.Then turn over the keyboard as shown.
5.Disconnect the keyboard cable from the main board.
6.Turn over the notebook, remove two screws fastening the LCD module on the...

70Chapter 3
7.Then turn the notebook to the front side. Take out the antenna then disconnect the LCD cable (See the 
middle and the right images).
8.Remove four screws fastening the LCD module (M2.5*10(NL) for yellow circles; M2.5*15(NL) for red 
circles).
9.Then detach the entire LCD module from the main unit carefully. 

Chapter 371
Disassembling the Main Unit
Separate the Main Unit Into the Upper and the Lower Case Assembly
1.Remove two screws fastening the upper case assembly to the lower case assembly.
2.Disconnect the LED board cable from the main board.
3.Disconnect the touchpad cable from the main board.
4.Remove eight screws fastening the upper case assembly and the lower case assembly on the bottom as 
shown.
5.Detach the upper case assembly carefully as shown.
6.Tear off the mylar fastening the audio board...

72Chapter 3
11 .Remove the two screws fastening the player board.
12.Detach the player board from the upuper assembly.
13.Tear off the mylar on top of the touchpad bracket.
14.Remove the screws holding the touchpad bracket.
15.Then detach the touchpad bracket from the uppwer case.
16.Disconnect the touchpad FFC.
17.Then remove the touchpad FFC from the touchpad.
18.Detach the touchpad from the upper case.
Disassembling the Lower Case Assembly
1.Detach the switch board from the main board. 

Chapter 373
2.Remove the screw fastening the modem board.
3.Disconnect the modem board cable from the modem board.
4.Then detach the modem board from the main board.
5.Disconnect the speaker cable from the main board.
6.Then disconnect the microphone cable from the main baord.
7.Remove the screw fastening the main board to the lower case.
8.Pull the lower case outwards as the image shows and uplift main board from the lower case carefully.
9.Disconnect the bluetooth cable from the main board....

74Chapter 3
11 .Remove the screw holding the audio board.
12.Detach the audio board from the lower case as shown.
13.Disconnect the audio cable from the audio board.
14.Detach the bluetooth module from the lower case.
15.Take out the microphoner from the lower case. (Tear off the tape fastening the microphone before you 
remove the speaker from the lower case).
16.Remove the four screws fastening the speaker set.
17.Take out the speaker from the lower case.
18.Remove two screws holding the subwoofer to...