Acer Travelmate 6493 Service Guide

							Chapter 241
BIOS Flash Utility
The BIOS flash memory update is required for the following conditions:
•New versions of system programs
•New features or options
•Restore a BIOS when it becomes corrupted. 
Use the Phlash utility to update the system BIOS flash ROM.
NOTE: Create a Crisis Recovery Media (such as USB HDD) 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, the system will not boot as the BIOS is not loaded. 
Perform the following steps to use the Flash Utility:
1.Press F2 during boot to enter the Setup Menu.
2.Select Boot Menu to modify the boot priority order, for example, if using USB HDD to Update BIOS, move 
USB HDD to position 1.
3.Execute the IFLASH.BAT batch file to update BIOS (Read xxxxx.fd to Memory).
Inform ation     M ain     A dvanc ed Intel S ec urityB ootExit
Item  S pec ific  Help
B oot priority  order:
    1: US B  HDD: A B C HDDUse <
↑> or <
↓> to
    2: IDE  1: Optiarc  DV D RW  A D-7560S -(P M )s elec t a devic e, then
    3: USB FDD:pres s  < F6>  to m ove it
    4: P CI LA N: IB A  GE  S lot 00C8 v1300up the Lis t, or < F5>
    5: IDE  0: W DC W D2500B E V S -22US T0-(P M )to move it down the
    6: USB KEY:list. Press  to
    7: US B  CD/DV D ROM :es c ape the m enu. P hoenix  S ec ureCore(tm ) S etup Utility 
						

							42Chapter 2
4.In flash BIOS, the message Please do not remove AC Power Source displays.
NOTE: If the AC power is not connected, the following message displays.
Plug in the AC power to continue.
5.Flash is complete when the following message displays. 
6.Shutdown or reboot base on iflash.bat command. 
						

							Chapter 243
Remove HDD/BIOS Utility
This section provide you with removing HDD/BIOS method:
Remove HDD Password:
•If you key in wrong HDD password three times, Hdd password error code displays. See the image 
below.
To reset the HDD password, run HDD_PW.EXE as follows:
1.
Key in hdd_pw 15494 0 
2.Press 2.
3.Select one upper-case string from the list.
4.Reboot system and key in the selected string (0KJFN42 or UVEIQ96) on the HDD User 
Password screen. 
						

							44Chapter 2
Remove BIOS Password:
If you key in the wrong Supervisor Password three times, System Disabled displays on the screen. See the 
image below.
To reset the BIOS password, run BIOS_PW.EXE as follows:
1.
Key in bios_pw 14452 0
2.Select one string from the list. 
						

							Chapter 245
3.Reboot the system and key in the selected string (qjjg9vy, 07yqmjd etc.) for the BIOS user 
password. 
						

							46Chapter 2 
						

							Chapter 347
Machine Disassembly and Replacement
This chapter contains step-by-step procedures on how to disassemble the notebook computer for 
maintenance and troubleshooting.
Disassembly Requirements
To disassemble the computer, you need the following tools:
•Wrist grounding strap and conductive mat for preventing electrostatic discharge
•Flat screwdriver
•Philips screwdriver
•Plastic flat screwdriver
•Plastic tweezers
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.
Chapter 3 
						

							48Chapter 3
General Information
Pre-disassembly Instructions
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.Place the system on a flat, stable surface. 
4.Remove the battery pack.
Disassembly Process
The disassembly process is divided into the following stages:
•External module disassembly
•Main unit disassembly
•LCD module disassembly
The flowcharts provided in the succeeding disassembly sections illustrate the entire disassembly sequence. 
Observe the order of the sequence to avoid damage to any of the hardware components. For example, if you 
want to remove the main board, you must first remove the keyboard, then disassemble the inside assembly 
frame in that order.
Main Screw List 
ScrewQuantityPart Number
M2*10 (NL) 15 86.TQ702.001
M2.5*4 6 86.TQ702.002
M2*3 (NL) 33 86.TQ702.003
M2*4 (NL) 19 86.TQ702.004
M2*5 2 86.TQ702.005
M3*3 (NI) 4 86.TQ702.006
M M 2.5D 3.2L K 6D NI + 4 86.TQ702.007 
						

							Chapter 349
External Module Disassembly Process
External Modules Disassembly Flowchart
The flowchart below 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 main 
board, you must first remove the keyboard, then disassemble the inside assembly frame in that order.
Screw List
StepScrewQuantityPart No.
3G Module M2*3 2 86.TQ702.003
HDD Carrier M3*3 4 86.TQ702.006
ODD Bracket M2*5 2 86.TQ702.005
M2*3 2 86.TQ702.003
Disconnect pow er
and signal cables
from system
Rem ove
Battery
Turn off system
and peripherals
pow er
Rem ove
DIMMsRem ove
3G CardRem ove
HDDRem ove
ODD
Rem ove
Lower Covers
Rem ove
Dummy Cards 
						

							50Chapter 3
Removing the Battery Pack
1.Turn computer over. 
2.Slide the battery lock/unlock latch to the unlock position. 
3.Slide and hold the battery release latch to the release position (1), then slide out the battery pack from the main 
unit (2). 
1 2