Acer Travelmate 520 Service Guide

Chapter 235
Three password types protect your computer from unauthorized access.  Setting these passwords creates 
several different levels of protection for your computer and data:
TSetup Password prevents unauthorized entry to the BIOS Utility.  Once set, you must key-in this 
password to gain access to the BIOS Utility.  
TPower-On Password secures your computer against unauthorized use.  Combine the use of this 
password with password checkpoints on boot-up and resume from hibernation for maximum...

36Chapter 2
Load Default Settings
If you want to restore all parameter settings to their default values, select this menu item and press Enter
.  The 
following dialog box displays.
If you would like to load default settings for all parameters, use the cursor left/right
 (→←) keys to select Ye s
; 
then press Enter
.  Choose No
 if otherwise. 

Chapter 237
BIOS Flash Utility
The BIOS flash memory update is required for the following conditions:
TNew versions of system programs
TNew features or options
Use the AFlash utility to update the system BIOS flash ROM.
NOTE: 
Do not install memory-related drivers (XMS, EMS, DPMI) when you use AFlash.
NOTE: 
This program contains a readme.txt file.  This readme.txt file will introduce on how to use AFlash utility.
Executing Flash Program
IMPORTANT:
If this diskette is not bootable, do the following...

38Chapter 2
System Utility Diskette
This utility diskette is for the Acer TravelMate 520 notebook machine.  It provides the following functions:
1.
Panel ID Utility
2.
Thermal & Fan Utility
3.
Main Board Data Utility
To use this diskette, first boot from this diskette, then a “Microsoft Windows 98 Startup Menu” prompt you to 
choose the testing item.  Follow the instructions on screen to proceed.
NOTE: 
This program contains a readme.txt file.  This readme.txt file will introduce each test utility and...

Chapter 239
b.Write UUID by user keyin - this function is used when the original UUID is kept.  User may use “Read 
Main Board Data” function first to keep the UUID.
4.Write MBD serial number - this function will write MBD serial number by user keyin. 

40Chapter 2
System Diagnostic Diskette
IMPORTANT: 1The diagnostics program here that we used is called PQA (Product Quality Assurance) and is 
provided by Acer Headquarters.  You can utilize it as a basic diagnostic tool.  To get this program, 
either download it from http://csd.acer.com.tw or find it in the TravelMate 520 service CD kit. 
To better fit local service requirements, your regional office MAY have other diagnostic program.  
Please contact your regional offices or the responsible...

Chapter 241
4.Type “Host” to run Host server first.
5.If there is no reflect server, the test program will show “IR FAIL”.
USB Register and Connect/ Disconnect Test
This function will test USB Register and Connect/Disconnect of TravelMate 520 notebook series.
1.Register test (USBCMD, USBINTR, FRNNUM, FLBASEADD, SOF) - test its own USB internal circuit.
2.UHCI/ OHCI test utility
a.Please prepare a USB device such as USB mouse, USB keyboard or USB modem, and leave the 
USB port disconnected.  (Don’t...

42Chapter 2
Full Test performs all test items in detail  for your system.
Quick Test performs all test items quickly for your system.
The screen below appears if you select Multi Test.
Specify the desired number of tests and press Enter.
After you specify the number of tests to perform, the screen shows a list of test items (see below).
Move the highlight bar from one item to another. Press Space to enable or disable the item. Press Enter to 
view the available options of each selected item. Press Esc to...

Chapter 343
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:
!Wrist grounding strap and conductive mat for preventing electrostatic discharge
!Flat-bladed screw driver
!Phillips screw driver
!Tw e e z e r s
!Flat-bladed screw driver or plastic stick
NOTE: The screws for the different components vary in size.  During the disassembly process, group the 
screws with the...

44Chapter 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.