Acer Travelmate 6493 Service Guide

Chapter 4151
External Mouse Failure
If an external Mouse fails, perform the following actions one at a time to correct the problem. 
1.Try an alternative mouse.
2.If the mouse uses a wireless connection, insert new batteries and confirm there is a good connection. See 
the mouse user manual.
3.If the mouse uses a USB connection, try an alternate USB port.
4.Try an alternative program to verify mouse operation. Reinstall the program experiencing mouse failure.
5.Restart the computer.
6.Remove any recently...

152Chapter 4
Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a 
hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement 
should be considered only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1.Run the advanced diagnostic test for the system board in loop mode at least 10 times.
2.If no error is detected, do not replace any FRU.
3.If any...

Chapter 4153
POST Codes Tables
These tables describe the POST codes, drivers, and keys for the POST. 
Port 80 POST Codes
The following table details the Port 80 POST codes and drivers used in the POST.
Driver NamePort 80
CodeDriver NamePort 80
Code
PeiEventLog 01 CpuIo 3E
OemServices 02 Cf9Reset 3F
SioInit 03 PcRtc 40
MonoStatusCode 04 StatusCode 41
PentiumMCpuPeim 08 Variable 42
PlatformStage1 09 SmmVariable CF
Variable 0A EmuVariable 43
IchInit 0B TcgDxe A2
PlatformStage2 0D PhysicalPresence A3...

154Chapter 4
Driver NamePort80
CodeDriver NamePort80
Code
SmmDisp C5 HiiDatabase 80
SmmReloc C4 OemSetupBrowser 82
SmmRuntime C7 Font(English) 7E
SmmThunk C9 Font(French) 7F
OemServices D8 Font(Chinese) 8D
ChipsetInit 44 UnicodeCollation B1
SmmAccess C0 ConPlatform 5A
PciHostBridge 46 ConSplitter 5D
PciExpress 47 GraphicsConsole 79
GmchMbi CD Terminal 7A
IchInit 48 VgaClass 5E
IdeController 49 SaveMemoryConfig 5B
SataController 4A AcpiSupport 5C
IchSmbusLight 4B AcpiPlatform 53
SmmControl C1 DataHub 5F...

Chapter 4155
POST Keys and Messages
The following keys are available during POST.
The following messages display during POST:
KeyFunction
F2 Enter into Setup Menu
F12 Enter into Boot Manager
Before press function key
CPUID: XXXXXX
Press F2 go to Setup Utility
Press F12 go to Boot Manager
Press [PXE HOT KEY] go to PXE Setup Menu
After press function key
If user pressed F2
CPUID: XXXXXX
F2 is pressed. Go to Setup Utility.
If user pressed F12
CPUID: XXXXXX
F12 is pressed. Go to Boot Manager.
If user didn’t...

156Chapter 4 

Chapter 5157
Jumper and Connector Locations
Top View
No.ItemDescriptionNo.ItemDescription
1 JP34 WLAN Connector 14 JP65 T/P Connector
2 JP33 LCD Connector 15 SW4 Right Switch button
3 JP55 RJ11 Connector 16 SW3 Left Switch button
4 JP39 MDC Connector 17 JP37 B/T Connector
5 JP12 Switch Board Connector 18 JHP1 Headphone Connector
6 JMIC2 MIC Connector 19 JMIC1 MIC JACK
7 JP34 RJ11 Connector 20 SW5 Right Switch button
8 JP43 SPK Connector 21 SW7 Left Switch button
9 JP62 SIN Connector 22 SW8 WL Switch
10...

158Chapter 5
Bottom View
No.ItemDescriptionNo.ItemDescription
1 JP3 USB Board Connector 9 JP59 DVI Connector
2 JDOCK1 Docking Connector 10 U2 North Bridge
3 JP7 LAN Connector 11 JP9 HDD Connector
4 JP36 USB Connector 12 JP63 ODD Connector
5 PCN1 AC-IN Connector 13 CLRP2 CMOS clear
6 JP32 FAN Connector 14 PJP4 Battery Connector
7 JP6 CRT Connector 15 JP5 RAM Connector
8 JP2 CPU Connector 16 JP60 3G Connector 

Chapter 2159
Clearing Password Check and BIOS Recovery
This section provide you the standard operating procedures of clearing password and BIOS recovery for 
TravelMate 6493. TravelMate 6493 provide one Hardware Open Gap on main board for clearing password 
check, and one Hotkey for enabling BIOS Recovery.
Clearing Password Check
Hardware Open Gap Description
Steps for Clearing BIOS Password Check
If users set BIOS Password (Supervisor Password and/or User Password) for a security reason, BIOS will ask...

160Chapter 5
BIOS Recovery by Crisis Disk
BIOS Recovery Boot Block:
BIOS Recovery Boot Block is a special block of BIOS. It is used to boot up the system with minimum BIOS 
initialization. Users can enable this feature to restore the BIOS firmware to a successful one once the previous 
BIOS flashing process failed.
BIOS Recovery Hotkey:
The system provides a function hotkey: Fn+Esc, for enable BIOS Recovery process when system is powered 
on during BIOS POST. To use this function, it is strongly...