Acer Aspire 9920 Service Guide

							Chapter 361
This chapter contains step-by-step procedures on how to disassemble the notebook computer Aspire 9920 for 
maintenance and troubleshooting.
To disassemble the computer, you need the following tools:
qWrist grounding strap and conductive mat for preventing electrostatic discharge
qSmall Philips screw driver
qPhilips screwdriver
qPlastic flat head screw driver
qTw e e z e r s
NOTE: The screws for the different components vary in size. During the disassembly process, group the 
screws with the corresponding components to avoid mismatch when putting back the components. 
When you remove the stripe cover, please be careful not to scrape the cover.
Chapter 3
Machine Disassembly and Replacement 
						

							62Chapter 3
General Information
Before You Begin
Before proceeding with the disassembly procedure, make sure that you do the following:
1.Turn off the power to the system and all peripherals.
2.Unplug the AC adapter and all power and signal cables from the system.
3.Remove the battery pack. 
						

							Chapter 363
Disassembly Procedure Flowchart
The flowchart on the succeeding page gives you a graphic representation on the entire disassembly sequence 
and instructs you on the components that need to be removed during servicing. For example, if you want to 
remove the system board, you must first remove the keyboard, then disassemble the inside assembly frame in 
that order. 
						

							64Chapter 3
Screw List
ItemDescriptionPart Number
A SCREW M2.5*3(NL) 86.TAVV5.001
B SCREW M2.5*6(NL) 86.TAVV5.002
C SCREW M2.5*10(NL) 86.TAVV5.003
D SCREW M2.5*15(NL) 86.TAVV5.004
E SCREW M2*2.2 86.TAVV5.005
F SCREW M2*3(NL) 86.TAVV5.006
G SCREW M2*4 86.TAVV5.007
H SCREW M3*4(NL) 86.TAVV5.008
I SCREW D-SUB 4#X40* 1/5-NI (NL) 86.TAVV5.009 
						

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

							66Chapter 3
Removing the HDD/Memory Module/Wireless LAN Card/TV Tuner Card/
System Fan/Thermal Modules/CPU and the LCD Module 
Removing the HDD
1.Remove the three screws fastening the HDD door.
2.Detach the HDD door from the notebook.
3.Then disconnect the two HDD as shown (Some notebooks may have only one HDD).
Removing the Memory Module
4.Remove the four screws holding the CTO cover.
5.Detach the CTO cover from the main unit.
6.Pop out the memory module from the DIMM socket then remove it (If the notebook has two memory 
modules, then repeat this step). 
Removing the Wireless LAN Card/TV Tunder Card and System Fan
7.Remove the two screws fastening the wireless LAN card. 
						

							Chapter 367
8.Disconnect the main and auxiliary antennae from the wireless LAN card.
9.Then take out the wireless LAN card from the main unit. 
10.Remove the two screws fastening the TV tuner card.
11 .Disconnect the TV-in cable then remove the TV tuner card.
12.Remove two screws holding the support holder as shown.
13.Remove four screws fastening the support holder on the rear side as shown. 
14.Detach the support holder from the main unit.
15.Remove the three screws holding the system fan.
16.Disconnect the fan cable from the main board.
17.Take out the system fan from the main unit as shown. 
						

							68Chapter 3
Removing the Thermal Modules and the CPU
18.Remove the two screws holding the finger heatsink.
19.Detach the finger heatsink from the main board.
20.Then take out the CPU heatsink from the main board.
21.Use a flat screwdriver to release the CPU lock (Turn counter clock-wise) then remove the CPU carefully.
22.Remove the two screws fastening the MXM heatsink.
23.Detach the MXM heatsink from the main board.
24.Remove the two screws fastening the MXM card
25.Remove the MXM card carefully. 
						

							Chapter 369
Removing the ODD and Dummy cards
26.Remove the screw fastening the optical disk drive module on the bottom.
27.Use a tool to push the optical disk drive module outwards and remove the ODD module.
28.Then remove the PC dummy card.
29.Remove the express dummy card. 
						

							70Chapter 3
Removing the LCD Module
 
30.Detach the middle cover from the rear side as shown.
31.Then detach the middle cover from the front side and remove it.
32.Take out the LCD cable from the groove.
33.Disconnect the LCD cable from the main board.
34.Remove the six screws holding the LCM module.
35.Detach the LCD module from the main unit.