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Extensa 450 Series
Texas Instruments Extensa 450 Series Manuals
Manuals and User Guides for Texas Instruments Extensa 450 Series. We have
1
Texas Instruments Extensa 450 Series manual available for free PDF download: Maintenance Manual
Texas Instruments Extensa 450 Series Maintenance Manual (100 pages)
Notebook Computers
Brand:
Texas Instruments
| Category:
Laptop
| Size: 1.51 MB
Table of Contents
Table of Contents
3
Preface
7
Section 1 General Description
9
Introduction
9
Product Models
10
International Product Versions
10
Product Overview
11
External Ports
13
Touchpad Pointing Device
14
Keyboard
14
Standard Power Features
16
Wireless Connection with Serial Infrared Port
17
Preloaded Software
17
Notebook Expansion Capabilities
17
Standard Test Features
18
Notebook Assemblies and Subassemblies
18
Cover-Display Assembly
19
System Base Assembly
19
Extensa 450 Series Notebook Specifications
20
Agency Approvals
21
Installation
22
Introduction
22
Unpacking Instructions
22
Installing Notebook Options
22
Installing Dual Inline Memory Module(S)
22
Installing PCMCIA Options
24
Installing the Port Adapter
25
Installing the Optional Numeric Keypad
26
Installing the Battery Pack(S )
26
Installing External Devices
27
Installing an External Keyboard/Mouse
27
Installing External Parallel Printer
29
Installing External Serial Port Device
29
Installing External VGA Monitor
31
Installing SIR Devices
31
Installing the AC Power Adapter
32
Initial System Checkout
33
Configuring the System
33
Making Backups of System Software
34
Loading Application Software
34
Section 3 Operating Instructions
35
Introduction
35
Notebook Controls and Indicators
35
Button Switches
36
Cover Release Latch
37
Touch Pad Controls
37
Keyboard Mode Leds
37
Operating Procedures
37
Floppy Drive Operating Procedures
37
Installing/Removing PCMCIA Options
38
Computer Hot Keys
38
Responding to Low Battery Conditions
39
Minimizing Power Usage
39
Recharging the Battery Packs
39
Restoring Missing System Files
39
Rebuilding the System Software
40
Section 4 Theory of Operation
41
Introduction
41
Notebook Functional Description
41
Processor/Memory Subsystems
41
I/O Subsystem
45
Video Subsystem
46
Hard Disk Subsystem
47
Floppy Diskette Drive Subsystem
47
PCMCIA Subsystem
47
Power Subsystem
48
Primary Battery Pack
49
Secondary Battery Pack
50
Section 5 Troubleshooting Procedures
51
General
51
Overview of Fault Isolation Process
51
Troubleshooting
52
Troubleshooting Procedures
53
Troubleshooting a Power Supply Problem
53
Troubleshooting a Display Problem
54
Fault Isolation Using Selftest
55
PCMCIA Modem Problems
55
Fault Isolation Using Diagnostics
56
Section 6 Field Service
60
Introduction
60
Preventive Maintenance
60
Cleaning the Computer
60
Protecting the Disk Drives
61
Handling the Computer Battery Pack
61
Restoring System Software
61
Required Tools and Equipment
61
Notebook Field-Replaceable Parts and Assemblies
62
Cover-Display Assembly
62
System Base Assembly
63
Removing/Replacing the Notebook Battery Pack
65
Removing/Replacing PCMCIA Options
66
Removing/Replacing the Floppy Drive
66
Removing/Replacing the Hard Drive
66
Removing/Replacing the Keyboard Assembly
67
Removing/Replacing the Heat Sink
67
Removing and Replacing the Cover-Display Assembly
69
Removing and Replacing the Inverter Board
69
Opening/Replacing the Top Case Assembly
70
Removing/Replacing the Touch Pad Assembly
70
Removing/Replacing the SIR Board
72
Removing/Replacing the Primary Battery Board
73
Removing/Replacing the Memory Board
74
Removing/Replacing the Main Board
75
Removing/Replacing the Secondary Battery Board
76
Appendix A Self-Test Error Messages
78
Introduction
78
Appendix B Connector Pinouts
83
Introduction
83
Appendix C PC-Doctor Diagnostics
94
Introduction
94
Starting PC-Doctor
94
C.3 Keyboard Navigation
95
C.4 Mouse Navigation
95
PC-Doctor Menus
96
Online Help
96
Diagnostics
96
Interactive Tests Menu
97
Hardware Info Menu
98
Utility Menu
98
C.6 Quitting PC-Doctor
99
C.7 Remote Operation
99
PC-Doctor Diagnostics
94
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