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Removal and Replacement
7. To replace the middle cover,
be sure that the latches are lined up with the
upper case as indicated below.
8. Press the middle cover to lock it in place.
720.book Page 64 Saturday, March 6, 1999 10:00 AM
Contents
Main
Copyright
Disclaimer
Conventions
Preface
Chapter 1 System Specifications
Chapter 2 System Utilities
Chapter 3 Removal and Replacement
Chapter 4 Troubleshooting
Page
Page
System Specifications
Chapter 1
Major Features
System
Connectivity
Display
Video Performance
Simultaneous Display
Dual Display
Power Management
Opening and Closing the Display
Indicators
Keyboard
Special Keys
Page
Page
Page
Chapter 1 9
10 System Specifications
I/O Ports
Rear Ports
Page
Page
Page
14 System Specifications
Hardware Configuration and Specifications
Memory Address Map
Interrupt channel default assignment
Chapter 1 15
DMA channel default assignment
I/O address map
Interrupt channel default assignment
16 System Specifications
Processor
BIOS
System Memory
I/O address map
Chapter 1 17
DIMM Memory Combinations
Second-Level Cache
System Memory
18 System Specifications
Video memory
Video
External CRT Resolutions and Modes
Parallel Port
Chapter 1 19
Serial Port
FIR
Parallel Port
20 System Specifications
Audio
PCMCIA
Fax/Modem
FIR
Chapter 1 21
Keyboard
Disk drives
Hard disk drives
Fax/Modem
22 System Specifications
CD-ROM
Battery
Hard disk drives
Chapter 1 23
Charger
DC-DC Converter
Battery
24 System Specifications
DC-AC Inverter
LCD
DC-DC Converter
Chapter 1 25
AC Adapter
LCD
Page
Power Management
Power Management Modes
Page
Page
Advanced Power Management
Advanced Configuration and Power Interface
System Utilities
Chapter 2
PhDISK
Syntax
Notebook Manager
Information Viewer
Boot Sequence
Password
Page
Power Management
Display Device
Page
Setup Utility
Navigating the Setup Utility
Page
Page
Page
Page
Page
Advanced
Security
Chapter 2 49
Page
Power
52 System Utilities
Exit
Page
Chapter 3
Removal and Replacement
TravelMate 720 Disassembly Flowchart (13.3 LCD)
720-ch3.fm Page 56 Saturday, March 6, 1999 8:30 AM
56 Removal and Replacement
External Module Replacement
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Removing the CPU
Page
Page
Page
Page
Page
Disassembling the Lower Case
Removing the Floppy Disk Drive
Page
Page
Page
Page
Page
Page
Troubleshooting
Chapter 4
Page
Diskette Drive Checkout
CD-ROM Driver Test
Keyboard or Auxiliary Input Device Checkout
Memory Checkout
Power System Checkout
Checking the Battery Pack:
TouchPad Checkout
Symptom-to-FRU Index
Numeric Error Codes
90 Troubleshooting
Chapter 4 91
92 Troubleshooting
Chapter 4 93
94 Troubleshooting
Intermittent Problems
Undetermined Problems
Utility Program Diskette
Setting LCD Panel ID
Setting Thermal Sensor Utility
Running the Diagnostics
Page
Page
Chapter 4 101
PQA Diagnostics Program Error Codes and Messages
Page
Jumper and Connector Information
Chapter 5
Chapter 5 103
Top V ie w
PCB No. 97143
Page
FRU (Field Replaceable Unit) List
Chapter 6
106 FRU (Field Replaceable Unit) List
Chapter 6 107
NS
108 FRU (Field Replaceable Unit) List
NS
Chapter 6 109
NS
110 FRU (Field Replaceable Unit) List
NS
Chapter 6 111
NS
NS NS
NS
112 FRU (Field Replaceable Unit) List
Chapter 6 113
NS NS
NS
NS NS
NS
114 FRU (Field Replaceable Unit) List
NS
Chapter 6 115
NS
NS NS
Page
Chapter 6 117
NS
NS NS
NS
NS NS
118 FRU (Field Replaceable Unit) List
NS NS
Chapter 6 119
NS NS
Page
Model Definition and Configuration
Appendix A
Appendix A 121
TravelMate 720 Model Number Define
Page
Test Compatible Components List
Appendix B
124 Test Compatible Components List
PCMCIA
PCMCIA, PM Test
PCMCIA, Integration/Application Test
Appendix B 125
PCMCIA Cards Tested for Year2000 Compliance
Page
Online Support Information
Appendix C
Page
Index
A
B
C
D
E
F
H
I
J
K
L
M
O
P
R
S
T
U
V
W
Y
