Acer Aspire 7520 7220 Series User Manual

							Chapter 357
This chapter contains step-by-step procedures on how to disassemble the notebook computer 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 
						

							58Chapter 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 359
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.
Start
Thermal
DoorHDD Door
LCD Module
Middle Cover
HDD Bracket
Keyboard
Battery Pack
F*2 D*5
F*1
B*4
C*2 LCD hinges to logic
D*2 LCD hinges to logic
C*2 on bottom side
C*8 upper case assembly to lower case assembly on bottom side
C*2 upper case assembly to lower case assembly on upper side
Lower Case
Assembly
Modem
BoardSwitch Board
(for AS
models)
Upper Case
Assembly
Main Board
H*4
Speaker Set
ODD Module
Thermal
Module
Lower Case
F*2 F*1
F*2F*1
System FanMemory
CPU
B*1
D*1
HDD
F*1
F*2
Media Board
(for AS
models)Touchpad
Bracket
F*1
TouchpadTouchpad
FFC
Mimi Cover
F*1 
						

							60Chapter 3
Screw List
ItemDescriptionPart Number
A SCREW M2.5*3(NL) MA000006AG0
B SCREW M2.5*4(NL) MA0000061G0
B SCREW M2.5*6(NL) MA0000062G0
D SCREW M2.5*12(NL) MMCK25120G0
E SCREW M2*2.2 MA000006UG0
F SCREW M2*3(NL) MA0000060G0
G SCREW M2*5(Ni-NL) MA0000012G0
H SCREW M M 3.0D 3.0L K MAAA03032G0
I SCREW M 2.5D 4.15L K 5.5D ZK NL MA0000005G0
J SCREW M 2.5D 3.2L K 6D NI + MA000006C00
K SCREW ICW50_CPU_T HERMAL_SCR AM010000300
L SCREW M M 2.0D 3L K 5D MA0000096G0
M SCREW F 4# 5L K 4.5D ZK NL + MA000002NG0
LCD Module
LCD Inverter
LCD Panel
Wireless
Antenna Set
LCD Bezel
G*1 for 15
G*2 for 15.4 B*4
B*2
G*2 for 15.4
F*8 (4 on left; 4 on right)
LCD
Assembly
LCD CableLCD Bracket
Sets
LCD 
						

							Chapter 361
Removing the Battery Pack
1.Unlock the battery lock (move the battery lock to the unlock position as shown).
2.Slide the battery release latch then remove the battery.
  
						

							62Chapter 3
Removing the HDD Module/Memory/Wireless LAN Card/Modem Card/System 
Fan/Thermal Modules/VGA Board/CPU/Keyboard and the LCD Module 
Removing the HDD Module
1.Remove the two screws fastening the HDD cover.
2.Detach the HDD cover from the main unit.
3.Remove the screw fastening the HDD module bracket.
4.Pull the tab to remove the HDD module in the direction of the arrow.
Removing the Memory
1.Remove the four screws holding the thermal cover.
2.Detach the thermal cover from the main unit.
3.Pop out the memory from the DIMM socket then remove it (If the notebook has two memory, then repeat 
this step).  
						

							Chapter 363
Removing the Wireless LAN Card/Modem Card and TV Tuner Card
1.Disconnect the two antennae from the wireless LAN card.
2.Remove the two screws fastening the wireless LAN card.
3.Then take out the wireless LAN card from the main unit. 
4.Remove the two screws fastening the modem card and detach the modem card from the main board.
5.Then remove the modem card from the main unit. 
						

							64Chapter 3
Removing the System Fan/Thermal Modules/VGA Board and CPU
1.Disconnect the fan cable from the main board.
2.Remove the three screws holding the system fan.
3.Remove the four spring screws holding the CPU thermal module.
4.Then detach the CPU thermal module as shown.
5.Use a flat screwdriver to release the CPU lock (Turn counter clock-wire).
6.Remove the CPU from the CPU socket carefully. 
						

							Chapter 365
Removing the Keyboard and LCD Module
1.Turn the notebook over.
2.Remove the two screws securing the strip cover from the bottom of the notebook.
3.Detach the strip cover from the front side and remove it.
4.Gently pull up the keyboard to release it from the four snaps as shown.
5.Turn over the keyboard as the image shows. Then disconnect the keyboard cable from the main board.
6.Remove the keyboard from the main unit.
7.Disconnect the LCD cable and microphone cable from the main board.
 
8.Pull out the wireless LAN antennas free from the main unit as shown.
9.Remove the four screws securing the hinges.
10.Detach the LCD module from the main unit. 
						

							66Chapter 3
Disassembling the Main Unit
Separate the Main Unit Into the Upper and the Lower Case Assembly
1.Remove the screw fastening the ODD from the bottom of the notebook.
2.Push the ODD module outwards and gently pull it out as shown.
3.Press and release the PC dummy card from the PC slot as shown.
4.Then press the release the memory dummy card from the 5-in-1 card reader slot as shown.
5.Remove the nine screws fastening the upper case and the lower case assembly on the bottom.
6.Remove the eight screws fastening the upper case assembly and the lower case assembly on the front 
side.