Compaq Armada 7800 6266 T 5000 D M 1 Maintenance And Service Manual
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Notice
The information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR
TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN;
NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM
THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may be
photocopied or reproduced in any form without prior written consent from Compaq
Computer Corporation.
1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.K.
COMPAQ, ARMADA, and LTE are registered in the U. S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft
Corporation.
The software described in this guide is furnished under a license agreement or
nondisclosure agreement. The software may be used or copied only in accordance with
the terms of the agreement.
Product names mentioned herein may be trademarks and/or registered trademarks of
their respective companies.
Maintenance and Service Guide
Compaq Armada 7800 Family of Personal Computers
First Edition April 1998
Documentation Part Number 315047-001
Spare Part Number 314960-001
Compaq Computer Corporation
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Preface
This Maintenance and Service Guide is a troubleshooting reference that can be used
when servicing the Compaq Armada 7800 Family of Personal Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq
Armada 7800 Family of Personal Computers without notice.
Additional information is available on the Compaq Armada 7800 Family of Personal
Computers Illustrated Parts Map. Information for the Compaq ArmadaStation and
Armada MiniStation E and EX is available in the Compaq ArmadaStation and Armada
MiniStation E and EX Maintenance and Service Guide and Illustrated Parts Map.
Symbols
The following words and symbols mark special messages throughout this guide:
WARNING: Text set off in this manner indicates that failure to follow
!
directions in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow
directions in the caution could result in damage to equipment or loss of
information.
IMPORTANT: Text set off in this manner presents clarifying information or specific
instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting
points of information.
Technician Notes
WARNING: Only authorized technicians trained by Compaq should repair
!
this equipment. All troubleshooting and repair procedures are detailed to
allow only subassembly/module level repair. Because of the complexity of
the individual boards and subassemblies, no one should attempt to make
repairs at the component level or to make modifications to any printed
wiring board. Improper repairs can create a safety hazard. Any indication
of component replacement or printed wiring board modifications may void
any warranty or exchange allowances.
WARNING: The computer is designed to be electrically grounded. To
!
ensure proper operation, plug the AC power cord into a properly grounded
electrical outlet only.
CAUTION: To properly ventilate the system, you must provide at least 3
inches (7.62 cm) of clearance on the left and right sides of the computer.
Preface xi
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Serial Number
When requesting information or ordering spare parts, provide the computer serial
number. The serial number is on the bottom of the computer.
Locating Additional
Information
The following documentation provides information for the computer:
n Compaq Armada 7800 Family of Personal Computers documentation set
n Microsoft Windows 95/Windows NT 4.0 User’s Guide
n Compaq Service Training Guides
n Compaq Service Advisories and Bulletins
n Compaq QuickFind
n Compaq Service Quick Reference Guide
n Compaq Armada 7800 Family of Personal Computers Maintenance and Service Guide
n Compaq Armada 7800 Family of Personal Computers Illustrated Parts Map
n Compaq ArmadaStation and Armada MiniStation E and EX Maintenance and Service Guide
n Compaq ArmadaStation and Armada MiniStation E and EX Illustrated Parts Map
n Compaq Internet site at http://www.Compaq.com
xii Preface
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C
ONTENTS
Preface
Symbols.................................................................................................................................................. xi
Technician Notes.................................................................................................................................... xi
Serial Number........................................................................................................................................ xii
Locating Additional Information.......................................................................................................... xii
Chapter 1
RODUCT DESCRIPTION
P
1.1 Computer Features and Models.........................................................................................................1-1
Features.................................................................................................................................................1-1
Models.................................................................................................................................................. 1-3
Intelligent Manageability.....................................................................................................................1-4
1.2 Computer Components...................................................................................................................... 1-7
System Memory Options......................................................................................................................1-8
Mass Storage Devices ..........................................................................................................................1-9
Battery Equipment Options................................................................................................................1-11
1.3 Computer External Components .....................................................................................................1-12
1.4 Design Overview ............................................................................................................................. 1-19
System Board .....................................................................................................................................1-19
Chapter 2
ROUBLESHOOTING
T
2.1 Preliminary Steps...............................................................................................................................2-2
2.2 Clearing Passwords............................................................................................................................ 2-3
2.3 Power-On Self-Test (POST)..............................................................................................................2-4
2.4 POST Error Messages........................................................................................................................2-4
2.5 Compaq Utilities................................................................................................................................2-8
Computer Setup.................................................................................................................................... 2-8
Computer Checkup (TEST) ...............................................................................................................2-10
Running View System Information (INSPECT)............................................................................... 2-17
Running Compaq Diagnostics ...........................................................................................................2-18
Boot Sequencing ................................................................................................................................2-18
Factory Default Settings.....................................................................................................................2-18
2.6 Troubleshooting Without Diagnostics ............................................................................................2-20
Before Replacing Parts....................................................................................................................... 2-20
Checklist for Solving Problems .........................................................................................................2-20
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Chapter 3
LLUSTRATED PARTS CATALOG
I
3.1 Computer System Major Components..............................................................................................3-2
3.2 Miscellaneous Plastics Kit Components ...........................................................................................3-4
3.3 Miscellaneous Hardware Kit Components........................................................................................3-5
3.4 Power Equipment............................................................................................................................... 3-6
3.5 Mass Storage Devices........................................................................................................................ 3-7
3.6 Items that Ship with the Computer....................................................................................................3-8
3.7 Options............................................................................................................................................. 3-10
3.8 Miscellaneous .................................................................................................................................. 3-12
3.9 Documentation.................................................................................................................................3-12
Chapter 4
EMOVAL AND REPLACEMENT PRELIMINARIES
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4.1 Tools Required................................................................................................................................... 4-1
4.2 Service Considerations......................................................................................................................4-1
Plastic Parts .......................................................................................................................................... 4-1
Cables and Connectors.........................................................................................................................4-2
4.3 Preventing Damage to Removable Drives ........................................................................................4-2
4.4 Preventing Electrostatic Damage ......................................................................................................4-3
Packaging and Transporting Precautions............................................................................................. 4-3
Workstation Precautions ......................................................................................................................4-4
Grounding Equipment and Methods....................................................................................................4-5
Electrostatic Voltage Levels and Protective Materials........................................................................4-6
Chapter 5
EMOVAL AND REPLACEMENT PROCEDURES
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5.1 Serial Number....................................................................................................................................5-1
5.2 Disassembly Reference Chart............................................................................................................5-2
5.3 Disassembly Sequence Chart.............................................................................................................5-3
5.4 Preparing the Computer for Disassembly ......................................................................................... 5-4
Undocking the Computer.....................................................................................................................5-4
Disconnecting the Computer................................................................................................................5-7
5.5 Computer Logo..................................................................................................................................5-8
5.6 Computer Feet ................................................................................................................................... 5-9
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5.7 Battery Packs ...................................................................................................................................5-10
Removing a Battery Pack from the Battery Bay................................................................................ 5-10
Removing a Battery Pack from the MultiBay....................................................................................5-12
Inserting a Battery Pack into the Battery Bay....................................................................................5-15
Inserting a Battery Pack into the MultiBay........................................................................................5-16
5.8 Hard Drives...................................................................................................................................... 5-17
Removing a Hard Drive from the Hard Drive Bay............................................................................5-17
Inserting a Hard Drive into the Hard Drive Bay................................................................................5-20
Inserting a Hard Drive into the MultiBay..........................................................................................5-22
Removing a Hard Drive from the MultiBay......................................................................................5-23
5.9 MultiBay Devices............................................................................................................................5-24
Removing MultiBay Devices.............................................................................................................5-24
Inserting MultiBay Devices ...............................................................................................................5-27
5.10 MemoryExpansion.........................................................................................................................5-28
Removing the Memory Expansion Slot Cover.................................................................................. 5-28
Removing a Memory Expansion Board............................................................................................. 5-30
Inserting a Memory Expansion Board...............................................................................................5-31
Replacing the Memory Expansion Slot Cover .................................................................................. 5-32
5.11 Keyboard Assembly.......................................................................................................................5-33
5.12 Power Supply.................................................................................................................................5-36
5.13 Fan Assembly ................................................................................................................................5-38
5.14 Audio/USB Board..........................................................................................................................5-39
5.15 Modem Board................................................................................................................................5-40
5.16 Audio Assembly Bracket...............................................................................................................5-42
5.17 Lithium Disc Cell Battery..............................................................................................................5-45
5.18 Processor Module Assembly.........................................................................................................5-46
5.19 Display Assembly..........................................................................................................................5-49
Removing the Display Assembly....................................................................................................... 5-49
Installing the Display Assembly ........................................................................................................5-56
5.20 PC Card Eject Levers.....................................................................................................................5-61
Installing the PC Card Eject Levers...................................................................................................5-62
5.21 System Board.................................................................................................................................5-63
5.22 PC Card Assembly.........................................................................................................................5-69
5.23 I/O Bracket.....................................................................................................................................5-71
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Chapter 6
PECIFICATIONS
S
6.1 Physical and Environmental Specifications...................................................................................... 6-1
6.2 Display Specifications.......................................................................................................................6-2
6.3 Hard Drive Specifications .................................................................................................................6-3
6.4 Diskette Drive Specifications............................................................................................................6-4
6.5 CD-ROM Drive Specifications .........................................................................................................6-5
6.6 Battery Pack Specifications...............................................................................................................6-6
6.7 System Interrupts............................................................................................................................... 6-7
6.8 System DMA ..................................................................................................................................... 6-8
6.9 System I/O Addresses........................................................................................................................ 6-9
6.10 System Memory Map ....................................................................................................................6-11
6.11 Modem Chipset Specifications......................................................................................................6-11
Appendix A
ONNECTOR PIN ASSIGNMENTS
C
Appendix B
OWER CORD SET REQUIREMENTS
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Appendix C
CREW MATRIX
S
Index
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..............................................................................................................................................C-1
......................................................................................................................... A-1
......................................................................................................................B-1
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Chapter 1
Product Description
1.1 Computer Features and Models
The Compaq Armada 7800 Family of Personal Computers offers advanced modularity,
an Intel Pentium II processor with 64-bit architecture, an industry-leading Accelerated
Graphics Port (AGP) implementation, and extensive multimedia support. The computer
provides desktop functionality and connectivity through the optional ArmadaStation
and Armada MiniStation.
Figure 1-1.
Compaq Armada 7800 Personal Computer
Features
The computer has the following standard features:
Intel 266-MHz Pentium II processor with 64-bit architecture, MMX technology, and
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512-KB, level-2 cache memory
Industry-leading portable computer AGP implementation, featuring:
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- 66-MHz dedicated graphics bus
- frame made AGP
4-MB SGRAM (synchronous graphics)
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Product Description
1-1
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64-MB of SDRAM (synchronous): 32-MB on system board, 32-MB in memory
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expansion compartment; expandable to 160 megabytes
Upgradable flash ROM BIOS
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13.3 XGA (1024 × 768) TFT color display, true color (24-bit) support
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Keyboard with built-in EasyPoint III pointing device and mouse buttons
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Lithium ion (Li-ion) battery pack
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Removable 5.0-GB hard drive
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MultiBay that supports a CD-ROM drive, a second hard drive, a second battery pack,
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or a diskette drive
Two PC Card slots that accept 32- and 16-bit Type I, II, and III PC Cards, with
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zoomed video interface in the bottom slot
IrDa-compliant infrared port1 (4-Mbps standard) for wireless file transfer, printing,
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and file synchronization
Built-in stereo speakers providing Compaq PremierSound, microphone, and jacks for
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stereo audio sound with electronic equalization and wave table synthesis
Energy Star-compliant power saving features
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Ports and connectors for external equipment, including universal serial bus (USB),
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serial, parallel, external monitor, and PS/2-compatible pointing device or keyboard
Security features
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Desktop functionality available with the optional Compaq ArmadaStation and
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Armada MiniStation
Domestic and international modem and Ethernet connectivity
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Integrated AC Adapter
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Integrated 33.6-Kbps data/fax modem
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1
IrDa 4MB compliant. Infrared performance may vary depending on performance of infrared peripherals, distance
between infrared devices, and applications used.
1-2
Product Description
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Models
The Armada 7800 models are shown in Table 1-1. The computer model designation is
composed of a group of characters that define each model’s characteristics.
Table 1-1
Models and Model Naming Convention
Compaq Armada 7800 Family of Personal Computers
Model
Armada 7800 6266 T 5000 D M 1 (64-MB RAM standard)
Armada 7800 6266 T 5000 D 0 1 (64-MB RAM standard)
Armada 7800 6266 T 5000 D 0 3 (64-MB RAM standard)
Armada 7800 78006266T5000 D M 1
Key A B C D E F G H I
Key Description Options
A Line designator 7 = Performance
B Family designator 8 = Armada 7800
C Processor type 6 =
D Processor speed 266 =
E Panel type T =
F Hard drive capacity 5000 = 5.0 GB
G Drive type D = 20X Max CD-ROM
H Modem M = Integrated modem
I Operating system &
software version
Intel Pentium II processor with MMX technology
266-MHz processor
13.3-inch XGA TFT 1024 × 768
V = DVD
0 = none
0 = No integrated modem
0 = No operating system
1 = Windows 95
2 = Windows 98
3 = Windows NT 4.0
4 = Windows NT 5.0
Product Description
1-3
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Intelligent Manageability
Intelligent Manageability consists of preinstalled software tools for the computer and
Compaq servers that assist in tracking, troubleshooting, protecting, and maintaining the
computer. It provides the following functions:
Asset Management—provides detailed configuration and diagnostic information.
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Fault Management—prevents, predicts, and alerts of impending hardware problems.
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Security Management—protects against unauthorized access to data and
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components.
Integration Management—uses industry-standard technologies such as DMI and
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SNMP to integrate with PC management software providers.
Configuration Management—optimizes the computer by providing the latest drivers,
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utilities, and software, which are available on CD-ROM and the Compaq web site at
http://www.compaq.com.
NOTE: For further help with Intelligent Manageability, refer to Intelligent
Manageability Help. Click Start ⇒ Compaq Information Center ⇒ double-click
Intelligent Manageability Help.
Asset Management
AssetControl retrieves component information when on the road or connected to the
network.
AssetControl also enables the network administrator to remotely retrieve information
from any Compaq computer connected to the network. The information can be used to
assist in tracking and maintaining the computer and its components. It provides the
following information:
Inventory information—The network administrator can retrieve information about
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the computer over the network by using Compaq Insight Manager or any PC
management tool provided by Compaq Solution Partners. AssetControl information
retrieved from the computer includes:
❑ Manufacturer, model, and serial number of Compaq computers, monitors, hard
drives, battery packs, memory boards, processor speeds, and operating systems.
❑ Asset tag
❑ System board and ROM revision levels
❑ BIOS settings
Diagnostic information—Diagnostics for Windows includes the information on hard
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drives, ports, and video, sound, and other components. Compaq Diagnostics for
Windows can be accessed by clicking Start ⇒ Programs ⇒ Compaq Utilities ⇒
Compaq Diagnostics.
All of the above information can be viewed, printed, or saved.
1-4
Product Description
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Changing the Asset Tag Number
1. Turn on or restart the computer.
2. Press F10 when the cursor appears in the upper right corner of the screen.
3. Select Computer Setup ⇒ Intelligent Manageability.
4. Follow the instructions on the screen.
Fault Management
The Fault Management features minimize downtime and data loss by monitoring
system performance and generating the following alerts:
Hard drive alert—provides warning up to 72 hours in advance of impending hard
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drive problems and can automatically start optional backup software.
System temperature alert—reports overheating. As the system temperature rises, this
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feature first adjusts fan speed and other cooling components, then displays an alert,
then shuts down the system.
Battery pack alert—reports charging problems and battery pack failure.
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Monitor alert—diagnoses and displays external monitor operational problems.
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Memory alert—reports memory board configuration changes when a memory board
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is removed, added, or reconfigured. It also provides the previous and current
configurations for comparison.
The alerts work with or without network connection. Of course, if the computer is not
connected to the network, the network administrator cannot receive alerts from the
computer.
Fault Management Alerts
Alerts can be enabled, disabled, and tested, and software can be set to back up
information whenever a hard drive alert occurs.
While the computer is connected to a network, alerts appear on the computer display
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and are simultaneously reported to the network console.
NOTE: A battery charging problem alert is reported only on the computer display.
When the computer is not connected to a network, the user will receive a local alert.
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To set alerts, double-click the Intelligent Manageability icon.
Product Description
1-5
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Security Management Overview
Security Management features customize system security.
Power-On and Setup Passwords—prevent unauthorized access to your information
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and computer configuration.
DriveLock—prevents access to hard drives.
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Device disabling—prevents unauthorized data transfer through modems, serial ports,
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parallel ports, and infrared ports on the computer and an optional docking station.
QuickLock/QuickBlank—locks the keyboard and clears the screen.
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Ownership Tag—displays ownership information during system restart.
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Configuration Management
Configuration Management optimizes software upgrade and customer support
procedures. Compaq provides support software to optimize the performance of the
computer. This support software is accessible through a monthly subscription
CD-ROM. Support software can also be downloaded from the Compaq web site at
http://www.compaq.com. Support software includes:
Locator browser—searches for the latest device drivers, utilities, ROM images, and
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other support software on a CD-ROM and at the Compaq web site at
http://www.compaq.com.
Decision Support—provides detailed information about drivers, utilities, and
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software available on the computer. The information includes descriptions, features,
enhancements, dependencies, and necessary upgrades.
InfoMessenger—provides notifications by email when support software for the
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computer becomes available.
1-6
Product Description
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1.2 Computer Components
The following table lists the components that ship with the computer and those that are
available as options. All components are available as spare parts. For more information
about ordering components, refer to Chapter 3, “Illustrated Parts Catalog.”
Table 1-2
Component Availability
Component Ships with Computer Available as Option
Battery pack ■■
Modem (not available in all locations) ■
Modem cable (country specific) ■■
Diskette drive ■
MultiBay weight saver ■
Slip case (shipped with computer only in
Europe, Middle East, and Africa)
EasyPoint III caps ■
Telephone cable (country specific) ■
Power cable ■
3-prong to 2-prong converter (Japan only) ■
Quck Restore CD-ROM ■
Security kit ■
ArmadaStation ■
Armada MiniStation E and EX ■
Memory expansion board ■
Battery charger ■
Automobile/aircraft adapter ■
Headset ■
Hard Drive MultiBay Adapter ■
20X CD-ROM drive ■■
5.0-GB hard drive ■■
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Product Description
1-7
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The computer options are described in the following sections.
System Memory Options
The main memory subsystem supports a minimum standard 32 megabytes of
Synchronous SDRAM, expandable to 160 megabytes. The minimum standard
Synchronous SDRAM is integrated on the system board. The upgrade SDRAM is
accomplished with memory expansion boards that are available in 16-, 32-, and 64megabytes.
The memory expansion slot cover is secured to the computer by a Torx T-8 screw. A
tamper-resistant security screw, included with the computer, can be used to provide
added security. The security wrench, also included with the computer, must be used to
remove the tamper-resistant security screw.
System memory can be upgraded as shown in Table 1-3.
Table 1-3
Memory Upgrade
Base Memory on System Board Memory Expansion Board Total Memory
32 MB 16 MB (1 × 16 MB) 48 MB
32 MB 32 MB (2 × 16 MB or 1 × 32 MB) 64 MB
32 MB 48 MB (1 × 16 MB + 1 × 32 MB) 80 MB
32 MB 64 MB (2 × 32 MB or 1 × 64 MB) 96 MB
32 MB 80 MB (1 × 16 MB + 1 × 64 MB) 112 MB
32 MB 96 MB (1 × 32 MB + 1 × 64 MB) 128 MB
32 MB 128 MB (2 × 64 MB) 160 MB
The computer is shipped with 32-MB of memory on the system board and 32-MB in the memory expansion
compartment.
1-8
Product Description
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Mass Storage Devices
The following mass storage devices are available for the computer.
Table 1-4
Mass Storage Devices
Device Dimensions
Diskette drive 3.5-inch, 1.44-MB
Hard drive 5.0-GB (also available as an option)
CD-ROM drive 20-Speed Max (also available as an option)
LS-120 external
diskette drive
Diskette Drive
The computer uses a 3.5-inch diskette drive that fits into the computer, ArmadaStation,
or Armada MiniStation EX MultiBays. The diskette drive is a three-mode type that is
compatible with 1.44 Megabytes, 1.2 Megabytes, and 720 Kilobytes (formatted) AT
drive types. The system supports a maximum of two diskette drives: one in the
computer MultiBay and one in the ArmadaStation or Armada MiniStation EX
MultiBay.
120-MB
Hard Drive
The dedicated hard drive bay supports a removable 5.0-GB hard drive and the MultiBay
supports a second hard drive. Before a hard drive can be used in the MultiBay, it first
must be inserted in the Hard Drive MultiBay Adapter.
Product Description
1-9
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CD-ROM Drive
A 20-Speed Max CD-ROM drive comes as standard equipment with the computer. This
CD-ROM drive is also available as an option. The drive supports 3.5-inch and 5.25-inch
media in the following formats:
ISO-9660, the most common CD-ROM format
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CD-ROM XA eXtended Architecture, a standard for storing multimedia information
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Photo CD (single and multisession), Kodak's format for storing photographic images
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on CD-ROM
CD-i and CD-i Bridge
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CD-DA (digital audio)
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CD-ROM Mode 1 and Mode 2
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CD-I Mode 2 (Form 1 and Form 2)
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Video CD
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1-10
Product Description
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Battery Equipment Options
The following battery options are available:
Automobile/Aircraft Adapter
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Lithium ion battery pack
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Battery Charger
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Automobile/Aircraft Adapter
The Automobile/Aircraft Adapter allows the computer to operate from a 12-volt aircraft
DC socket and from an automobile cigarette lighter receptacle.
Lithium Ion Battery Pack
The battery pack can be used in the computer dedicated battery bay, computer
MultiBay, ArmadaStation MultiBays, and Armada MiniStation EX MultiBay and
battery charging bay.
Battery Charger
The external Battery Charger has the following features:
Two battery charging bays
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Charging of one battery in 1.5 hours
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Charging of two batteries in 3 hours
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Product Description
1-11
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1.3 Computer External Components
The external components on the display, front, and left side of the computer are shown
in Figure 1-2 and described in Table 1-5.
Figure 1-2.
Display, Front, and Left Side Components
Table 1-5
Display, Front, and Left Side Components
Item Component Function
1 Display release latch Opens the computer.
2 Mono Microphone Allows for audio input; located on the inside and outside of the
display, can be used whether the computer is open or closed.
3 Stereo speakers (2) Produce high-quality stereo sound.
4 Tilt feet (2) Tilt the computer for ease of use.
5 Fan Provides airflow exhaust.
6 Battery bay Accepts Lithium ion battery pack.
7 Hard drive bay Accepts removable hard drive.
8 MultiBay Accepts MultiBay devices: CD-ROM drive, diskette drive, hard
drive (in Hard Drive MultiBay Adapter), LS-120 MultiBay Drive,
battery pack.
1-12
Product Description
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The external components on the right side of the computer are shown in Figure 1-3 and
are described in Table 1-6.
Figure 1-3.
Right Side Components
Table 1-6
Right Side Components
Item Component Function
1 Security slot Secures the computer to a fixed object to prevent theft.
2 PC Card eject levers (2) Eject PC Cards from the slots.
3 PC Card slots Accepts 16- and 32-bit CardBus PC Cards.
4 25-pin modem connector Connects a country-specific 25-pin telephone cable (all
countries except North America, Latin America, Japan, China,
and Hong Kong).
Also connects a cellular phone to the computer (U.S. only).
Product Description
1-13
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The external components on the rear panel of the computer are shown in Figure 1-4 and
are described in Table 1-7.
Figure 1-4.
Rear Panel Components
Table 1-7
Rear Panel Components
Item Component Function
1 Universal serial bus (USB)
connector
2 Mono microphone jack Connects mono microphone, disabling the built-in microphone.
3 Stereo speaker/headphone jack Connects external stereo speakers, headphones, or headset.
4 Stereo line-in jack Connects external device such as a CD player, tuner, or tape
Connects USB devices, such as cameras for video conferencing,
or hubs which connect multiple USB devices.
The USB connector is a powered hub. When running Windows
95 or higher or Windows NT or higher, any combination of up to
five powered or unpowered hubs can be connected in any
sequence, as long as two unpowered hubs are not connected
next to each other.
When running a lower version of Windows or Windows NT, or if
using a different operating system, up to two hubs can be
connected.
This jack is driven by an amplifier and has volume control. The
internal computer speakers are turned off when external
speakers or headphones are plugged into this jack.
deck.
Continued
1-14
Product Description
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Table 1-7
5 Power cord connector Connects external (AC) power.
6 RJ-11 modem jack Connects a standard telephone cable for a modem in North
7 Infrared port Provides wireless communication between the computer and
8 Serial connector Connects optional serial devices such as a mouse.
9 Parallel connector Connects optional parallel devices such as a printer.
10 Docking connector Connects optional ArmadaStation or Armada MiniStation E or EX.
11 Keyboard/mouse connector Connects an optional full-sized keyboard or a mouse. Both
12 External monitor connector Connects an optional external monitor. Also connects a
Continued
America, Latin America, Japan, China, and Hong Kong only.
another infrared-equipped device using an infrared beam.
external mouse and computer pointing device are active. An
optional splitter/adapter allows both an external keyboard and
mouse to be used at the same time.
television adapter.
Product Description
1-15
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Computer keyboard components are shown in Figure 1-5 and described in Table 1-8.
Figure 1-5.
Computer Components: Keyboard
Table 1-8
Keyboard Components
Item Component Function
1 Display switch Turns off the display if it is closed while the computer is turned
on. The computer beeps unless audio has been disabled.
2 Vents Allows airflow to cool the computer.
3 Suspend button Toggles on to initiate or off to exit Suspend.
4 Volume control Adjusts volume of stereo speakers.
5 Power switch Turns computer on or off.
6 Scroll lock key Turns on the scroll function.
7 Page up and page down keys Moves image to previous or following screen.
8 Num Lk key Turns on the numeric lock function.
9 Embedded numeric keypad Converts keys to numeric keypad.
10 Cursor-control keys Moves the cursor around the screen.
11 Fn key Used with hotkeys to perform preset hotkey functions.
12 Caps lock key Turns on the caps lock function.
13 F1 through F12 function keys Perform preset functions.
14 Programmable keys Assign and launch frequently used documents or applications
and emulate Windows and Application Logo Keys.
1-16
Product Description
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Additional computer keyboard components are shown in Figure 1-6 and described in
Table 1-9.
Figure 1-6.
Keyboard Components (continued)
Table 1-9
Keyboard Components (continued)
Item Component Function
1 Power/suspend light (green) Turns on when computer is turned on; blinks in Suspend; turns
off when computer is in Hibernation or turned off.
2 Battery power light (orange) Turns on when a battery pack in the battery bay is charging or
waiting to charge. Turns off when battery pack is fully charged.
Blinks 6 times if low-battery condition is reached. Blinks
continuously if critical low-battery condition is reached. If AC
power is not connected within 20 seconds, Hibernation is
initiated (unless Hibernation has been disabled).
3 Hard drive light (green) Turns on when the hard drive is being accessed.
4 MultiBay drive light (green) Turns on when the MultiBay device is being accessed or when a
battery pack in the MultiBay is charging or waiting to be
charged.
5 Left and right mouse buttons Function like left and right mouse buttons on an external mouse.
6 EasyPoint III pointing device Moves the cursor across the screen.
7 Caps lock light Turns on when the Caps Lock function is on.
8 Scroll lock light Turns on when Scroll function is on.
9 Numeric lock light Turns on when the Numeric Lock function is on.
Product Description
1-17
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The external components on the bottom of the computer are shown in Figure 1-7 and
are described in Table 1-10.
Figure 1-7.
Bottom Components
Table 1-10
Bottom Components
Item Component Function
1 Battery release latch Releases the battery from the battery bay.
2 Hard drive release latch Releases the hard drive from the hard drive bay.
3 Docking restraint latch recess Secures the computer to the ArmadaStation.
4 Hard drive/MultiBay security
screw slot
5 MultiBay release latch Releases devices from the MultiBay.
6 Memory expansion slot cover Covers the memory expansion compartment.
7 Labels area Contains labels that describe the computer model and provide
8 Serial number Numerical identification for the computer.
Allows hard drives and MultiBay devices to be secured inside the
computer using the single and dual bay security screws.
agency and modem information.
1-18
Product Description
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1.4 Design Overview
This section presents a design overview of key parts and features of the computer. For
assembly/disassembly instructions for the parts described in this section, refer to
Chapter 5.
System Board
The system board provides the following device connections:
Memory expansion board
■
Diskette drive
■
Hard drive
■
CD-ROM drive
■
Display
■
Keyboard/EasyPoint III pointing device
■
Audio
■
Pentium II processor
■
Fan
■
PC Cards
■
Modem
■
The computer is equipped with a 3.1-volt, Intel Mobile Pentium II 266-MHz processor.
For ventilation, an electrical fan is installed. The fan operates on from 5 to 12 volts and
is controlled by a temperature sensor. The fan is designed to turn on automatically when
high temperature conditions exist. These conditions are affected by high external
temperatures, system power consumption, power management/battery conservation
configurations, battery fast charging, and software applications. Exhaust air is displaced
through the ventilation grill located on the left side of the computer.
CAUTION:
on the left and right sides of the computer.
To properly ventilate the computer, allow at least a 3-inch (7.6 cm) clearance
Product Description
1-19
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Chapter 2
Troubleshooting
Follow these basic steps when beginning the troubleshooting process:
1. Complete the preliminary steps listed in Section 2.1.
2. Run the Power-On Self-Test (POST) as described in Section 2.3.
3. Run Computer Setup as described in Section 2.5.
4. Run the Computer Checkup (TEST) as described in Section 2.6.
5. If you are unable to run POST or Computer Checkup or if the problem persists after
running POST and Computer Checkup, perform the recommended actions
described in the diagnostic tables in Section 2.5.
Follow these guidelines when troubleshooting:
■ Complete the recommended actions in the order in which they are given.
■ Repeat POST and Computer Checkup after each recommended action until the
problem is resolved and the error message does not return.
■ When the problem is resolved, stop performing the troubleshooting steps and do not
complete the remaining recommended actions.
■ Refer to Chapter 5 for removal and replacement procedures that are recommended.
■ If the problem is intermittent, check the computer several times to verify that the
problem is solved.
The following table describes the troubleshooting actions:
If You Want To: Then Run:
Check for POST error messages POST
Check that computer components are recognized and
running properly
View information about the computer and installed or
connected devices
Perform any of the following:
■ Check the system configuration
■ Set the system power management parameters
■ Return the system to its original configuration
■ Check system configuration of installed devices
Computer Checkup (TEST) under Compaq Utilities
View System Information (INSPECT) under
Compaq Utilities
Computer Setup
Troubleshooting
2-1
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2.1 Preliminary Steps
IMPORTANT: Use AC power when running POST, Computer Setup, or Computer
Checkup. A low battery condition could initiate Hibernation and interrupt the test.
Before running POST and Computer Checkup, complete the following steps:
1. Obtain established passwords. If you must clear the passwords, go to Section 2.2.
2. Ensure that the hard drive is installed in the computer.
3. Ensure that the battery pack is installed in the computer and the power cord is
connected to the computer and plugged into an AC power source.
4. Turn on the computer.
5. If a power-on password has been established, type the password and press Enter.
6. Run Computer Setup (Section 2.5). If a Setup password has been established, type
the password and press Enter.
7. Turn off the computer and all external devices.
8. Disconnect external devices that you do not want to test. If you want to use the
printer to log error messages, leave it connected to the computer.
NOTE: If a problem only occurs when an external device is connected to the computer,
the problem could be with the external device or its cable. Isolate the problem by
running POST with and without the external device connected.
9. Use Compaq Utilities and loopback plugs in the serial and parallel connectors if you
plan to test these ports.
Follow these steps to run Compaq Utilities:
a. If you are running Compaq Utilities from the hard drive, turn on or restart the
computer. Press F10 when the cursor appears in the upper-right corner of the
screen. If you do not press F10 in time, restart the computer and try again.
If you are running Compaq Utilities from diskette, insert the Compaq Utilities
diskette in drive A. Turn on or restart the computer.
b. Press Enter to accept OK.
c. Select Computer Checkup (TEST).
d. Select Prompted Diagnostics.
e. After “Identifying System Hardware” completes, select Interactive Testing and
follow the instructions on the screen.
2-2
Troubleshooting
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2.2 Clearing Passwords
1. Turn off the computer.
2. Disconnect the power cord (refer to Section 5.4).
3. Remove the battery pack (Section 5.7).
4. Remove the keyboard (Section 5.11).
5. Remove the audio/USB board (Section 5.14).
6. Remove the modem board (Section 5.15).
7. Remove the audio assembly bracket (Section 5.16).
8. Remove the lithium disc cell battery (Section 5.17).
9. Disconnect the auxiliary battery (Section 5.19).
10. Allow the computer to set for five minutes.
11. Reconnect the auxiliary battery.
12. Install the lithium disc cell battery.
13. Install the audio assembly bracket, modem board, audio/USB board, and keyboard.
14. Reconnect the power cord. Do not
15. Turn on the computer.
NOTE: Remember to set the date and time the next time the computer is turned on.
reinstall the battery pack yet.
Troubleshooting
2-3
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2.3 Power-On Self-Test (POST)
The Power-On Self-Test (POST) is a series of tests that run every time the computer is
turned on. POST verifies that the system is configured and functioning properly.
To run POST, complete the following steps:
1. Complete the preliminary steps (Section 2.1).
2. Turn on the computer.
If POST does not detect any errors, the computer beeps once or twice to indicate that
POST has run successfully. The computer boots from the hard drive or from a bootable
diskette if one is installed in the diskette drive.
2.4 POST Error Messages
If the system is not functioning well enough to run POST, or if the display is not
functioning well enough to show POST error messages, refer to the Troubleshooting
tables in Section 2.7.
If POST detects an error, one of the following events occurs:
■ A message with the prefix "WARNING" appears, informing you where the error
occurred. The system pauses until you press F1 to continue.
■ A message with the prefix "FATAL" appears, informing you where the error
occurred. After the message, the system emits a series of beeps, then stops.
■ The system emits a series of beeps, then stops.
Warning messages indicate that a potential problem, such as a system configuration
error, exists. When F1 is pressed, the system should resume. You should be able to
correct problems that produce WARNING messages.
IMPORTANT: When a WARNING message includes the prompt to "RUN SCU," press
F10 to run Computer Setup. (Computer Setup replaces the SCU utility.)
2-4
Troubleshooting
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