Acer Aspire 5650 Service Guide

							Chapter 255
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:
First, you have to create a crisis diskette. Follow the steps to create a crisis diskette.
1.Insert a floppy disk to the notebook under Windows mode.
2.Execute “wincris.exe”
3.Wait for few minutes. The process will completed automatically.
After you have created crisis diskette, you can then recovery the fail system.
1.Insert the Crisis diskette to the computer.
2.Press Fn+Esc and power on the sytem.
3.The systme will execute the file automatically. Wait for few minutes the system will reboot as the entire 
process completed. 
						

							56Chapter 2 
						

							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:
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 
						

							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) 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
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.Slide the battery latch then remove the battery.
  
						

							62Chapter 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 thermal door from the notebook.
3.Pop out the memory then remove it
4.Use a tweezer to take out the fan cable as shown.
5.Disconnect the fan cable from the main board. 
						

							Chapter 363
6.Remove the two screws fastening the system fan. 
7.Take out the system fan from the main unit.
8.Remove the four screws fastening the thermal module.
9.Then detach the thermal module carefully.
10.Use a flat-headed screwdriver to release the CPU lock (Turn anti-clockwise).
11 .Detach the CPU from the CPU socket carefully.
12.Tear off the tape fastening the antenna set.
13.Then remove the antenna protection cover. 
						

							64Chapter 3
14.Remove the screw holding the mini cover.
15.Detach the mini cover from the main unit.
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.