Acer Travelmate 7720 Service Guide

							Chapter 251
Boot
This menu allows the user to decide the order of boot devices to load the operating system. Bootable devices 
includes the diskette drive in module bay, the onboard hard disk drive and the CD-ROM in module bay.
Phoenix TrustedCore(tm) Setup Utility
Main
Item Specific Help
Useorto
select a device, then
presstomoveit
up the list, or 
to move it down the
list. Press  to
escape the menu. Boot priority order:
F1
EscHelp
ExitSelect Item
Select Menu
Change Values
Select Sub-Menu -/+
EnterF9
F10Setup Defaults
Save and Exit
Information Advanced Security Boot Exit
2: IDE1:
3: CD/DVD: XXXXXXXXXXX-XXX XX-XXXX-XX
4: PCI LAN: MBA vXX.X.X Slot XXXX
5: USB HDD:
6: USB FDD:
7: USB Key:
8: USB CD/DVD ROM: 1: IDE0: XXXXXXXXXXX-(XX)
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							52Chapter 2
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.
Phoenix TrustedCore(tm) Setup Utility
Main
Item Specific Help
Exit System Setup and
save your changes to
CMOS.
F1
EscHelp
ExitSelect Item
Select Menu
Change Values
Select Sub-Menu -/+
EnterF9
F10Setup Defaults
Save and Exit
Information Advanced Security Boot Exit
Exit Discarding Changes
Load Setup Defaults
Discard Changes
Save Changes Exit Saving Changes
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							Chapter 253
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: 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.
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							54Chapter 2
Remove HDD/BIOS Utility
This section provide you with removing HDD/BIOS method:
Remove HDD Password:
If you key in wrong HDD password for three time, “HDD password error code” would display on the 
screen. See the image below.
If you need to solve HDD password locked problem, you can run HDD_PW.EXE
1.
Key in “hdd_pw 15494 0”
2.Select “2”
3.Choose one upper-case string
Reboot system and key in “0KJFN42” or “UVEIQ96” to HDD user password.
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							Chapter 255
Remove BIOS Password:
If you key in wrong Supervisor Password for three time, “System Disabled” would display on the 
screen. See the image below.
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							56Chapter 2
If you need to solve BIOS password locked problem, you can run BIOS_PW.EXE
1.
Key in “bios_pw 14452 0”
2.Choose one upper-case string
Reboot the system and key in “qjjg9vy” or “07yqmjd” to BIOS user password.
SG_Tangiz.book  Page 56  Tuesday, July 10, 2007  11:01 AM 
						

							Chapter 257
SG_Tangiz.book  Page 57  Tuesday, July 10, 2007  11:01 AM 
						

							58Chapter 2
SG_Tangiz.book  Page 58  Tuesday, July 10, 2007  11:01 AM 
						

							Chapter 359
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
Hex 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
Machine Disassembly and Replacement
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							60Chapter 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
ItemScrewColorPart No.
A M2.5 x L6 Black 86.00E33.736
B M2 x L4 Black 86.00A02.140
C M2 x L4 Silver 86.9A552.4R0
D M2.5 x L5 Silver 86.00E74.335
E M2.5 x L5 Black 86.00F19.735
F M2 x L3 Silver 86.00C07.220
G M3 x L4 Silver 86.9A544.4R0
H M2.5 x L8 Black 86.00E34.738
I M2 x L6 Silver 86.9A552.6R0
J M2 x L4 Black 86.00F24.724
K M2 x L3 Black 86.00E94.723
SG_Tangiz.book  Page 60  Tuesday, July 10, 2007  11:01 AM