Acer Aspire 3640 Service Guide

							Chapter 253
Exit
The Exit screen contains parameters that help safeguard and protect your computer from unauthorized use.
The table below describes the parameters in this screen.
ParameterDescription
Exit Saving Changes Exit System Setup and save your changes to CMOS.
Exit Discarding Changes Exit utility without saving setup data to CMOS.
Load Setup Default Load default values for all SETUP item.
Discard Changes Load previous values from CMOS for all SETUP items.
Save Changes Save Setup Data to CMOS.
PhoenixBIOS Setup Utility 
  Information         Main             Security             Boot
 
  
Item Specific Help 
Exit Saving Changes  
Exit Disarding Changes   
Load Setup Defaults 
 
 Exit System Setup and save 
your changes to CMOS.
 
F1  Help       ↑↓ Select Item          F5/F6 Change Values             F9 Setup Defaults 
Esc Exit        ← →  Select Menu      Enter  Select   4Sub -Menu      F10 Save and Exit  
Discard ChangesExit
Save Changes 
						

							54Chapter 2
BIOS Flash Utility
The BIOS flash memory update is required for the following conditions:
TNew versions of system programs
TNew features or options
TRestore a BIOS when it becomes corrupted. 
Use the Phlash utility to update the system BIOS flash ROM.
NOTE: If you do not have a crisis recovery diskette at hand, then you should create a Crisis Recovery 
Diskette before you use the Phlash utility.
NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use the Phlash.
NOTE: Please use the AC adaptor power supply when you run the Phlash utility. If the battery pack does not 
contain enough power to finish BIOS flash, you may not boot the system because the BIOS is not 
completely loaded. 
Fellow the steps below to run the Phlash.
1.Prepare a bootable diskette.
2.Copy the flash utilities to the bootable diskette.
3.Then boot the system from the bootable diskette. The flash utility has auto-execution function. 
						

							Chapter 355
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:
TWrist grounding strap and conductive mat for preventing electrostatic discharge
TSmall Philips screw driver
TPhilips screwdriver
TPlastic flat head screw driver
TTw 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 
						

							56Chapter 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 357
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
Battery
Middle CoverHDD CoverDIMM CoverH*2
P*1
HDD ModuleO*4 H*3
CPU
Lower Case
Assembly
86.9A353.3R0*2
Modem Board
Memory
ODD Module
Wireless LAN
Card
HDDHDD BracketM*4
Keyboard
LCD ModuleJ*2 on bottom side
K*2 on top side
E*1 on upper case assemby
E*12 on bottom side
F*3 on bottom side
A*2 on rear side
Upper Case
Assembly
N*3
Upper CaseTouchpad
Assembly
Touchpad
BracketTouchpad
Lower CaseMain Board
Assembly
Speaker Set
CPU HeatsinkC*1
D*2
RTC Battery
Bluetooth
Module
ODD Module
G*2
ODDODD Bracket E*1
Microphone
North Bridge
Plate86.9A353.3R0*2 *2
O*2 O*2Fan 
						

							58Chapter 3
Screw List
ItemDescriptionPart Number
A SCW HEX NYL I#R-40/O#4-40 L5.5 34.00015.081
B SCREW MACH WAFER M2*L4 NI  86.00059.220 (PC Card slot 
x4)
C CPU SCREW M2.5*4.3L (2.3 KG) 86.00D01.230
D CPU SCREW M2.5*4.3L (1.55 KG) 86.00D02.230
E SCREW M2.5-6 86.9A323.6R0
F SCRW M2.5*L8(NON NYLOK) 86.9A323.8R0
G SCREW M2*3 NYLON 1JMCPC-420325 86.9A352.3R0
H SCREW 86.9A352.4R0
I SCREW M2.5*4L(NYLOCK)BLACK ZN  86.9A353.4R0
J SCREW M2.5X6   86.9A353.6R0
K SRW M2.5*8L B/ZN NYLOK 700  86.9A353.8R0
L SCRW M2.5*L3(NON NYLOK) 86.9A523.3R0
M SCREW M3x4(86.9A524.4R0) 86.9A524.4R0
N SCREW WAFER NYLOK NI 2ML3    86.9A552.3R0
O SCRW M2*4 WAFER NI 86.9A552.4R0
P SCRW M2.5*3 WAFER NI 86.9A553.3R0
4 screw caps
J*4 for 15
J*8 for 15.4
LCD Bezel
I*2
LCD Inverter
LCD
AssemblyLCD Panel
G*8I*2
LCD Module
LCDLCD Wire
CableLCD Brackets 
						

							Chapter 359
Removing the Battery Pack
1.Unlock the battery lock.
2.Slide the battery latch then remove the battery.
  
						

							60Chapter 3
Removing the Wireless LAN Card/the HDD Module/the Memory/the 
ODD Module and the LCD Module 
Removing the Memory and the HDD Module
1.Remove the five screws fastening the DIMM cover.
2.Detach the DIMM cover carefully.
3.Pop out the memory carefully.
4.Disconnect wireless main and auxiliary antenna from the wireless LAN card.
5.Pop out the wireless LAN card and remove it.
6.Remove the three screwss fastening the HDD cover.
7.Detach the HDD cover from the main unit.
8.Remove the four screws fastening the HDD module.
9.Then detach the HDD module carefully. 
						

							Chapter 361
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.Detach the middle cover from the main uiit carefully.
2.Disconnect the launch board FFC from the launch board.
3.Remove the middle cover (with launch board and microphone) from the main unit.
4.Disconnect the microphone cable from the launch board. 
						

							62Chapter 3
5.Take out the microphone from the middle cover.
6.Remove the two screws fastening the launch board.
7.Then remove the launch board from the middle cover.
.
8.Remove the screw holding the keyboard.
9.Turn over the keyboard as shown.
10.Disconnect the keyboard cable.
11 .Remove the keyboard from the main unit.
12.Tear off the tapes fastening the wireless antenna cable.
13.Pull the antenna set from the main unit.
14.Disconnect the LCD cable.
15.Turn over the notebook then remove two screws fastening the LCD module.