Compaq armada 1500 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 conta ins informat ion protected by copyright. No part of this guide may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation.

Compaq, LTE, Contura, ProLinea, QuickLock, QuickBlank are registered in the U. S. Patent and Trademark Office. Armada is a trademark of Compaq Computer Corporation.

Contura is registered in the Philippines Patent Office. Microsoft, MS-DOS, and Windows are regi stered trademarks of Microsoft Corporati on.

Windows 95 is a trade mark of Mic rosoft Corporati on.

The softwar e described in this guide is furnished under a license agr eement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement. Product name s mentioned herein may be trademarks and/or registered trademarks of their respective companies.

Maintenance and Service Guide

Compaq Armada 1500 Fami l y of Personal Compu ters

First Edition (March 1997) Spare Part Number 255011-001 Document Part Number 284820-001

Compaq Computer Corporation

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Preface

This Maintenance and Service Guide is a troubleshooting guide that c an be used for reference when servicing the Compaq Armada 1500 Family of P ersonal Computers. Additional information is available in the Service Quick Reference Guide and in

QuickFind.

Compaq Computer Corporation reserves the right to make changes to the Compaq Armada 1500 P ersonal Compute rs without notice .

Symbols

The following symbols and words mark special messa ge s 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 could

result in damage to equipment or loss of data.

IMPORTANT: Text set off in this manner present s clarifying inf ormation or spec ific instructions.

NOTE: Text set off in t hi s manner prese nt s commentary, sidelights, or ot her points of inform ation.

Technician Notes

WARNING: Only authorized technicians trained by Compaq should attempt to 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.

CAUTION: To properly ventilate the system being serviced, you must provide at least 3 inches (7.62 cm) of clearance on the front and back of the computer.

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.

Preface xi

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Laser Safety

All Compaq systems, equipped with CD-ROM drives, comply with appropriate safety standard including IEC 825. With specific regard to t he laser, the equi pment complies with laser produc t performance st andards set by government agencies as a Class 1 laser product. It does not emit hazardous light; the beam is totally enclosed dur ing all modes of customer operation and maintenance.

CDRH Regulations

The Center for Devices and Radiological H ealth (CDRH) of the U.S. Food and Drug Administration implement ed regulations for laser products on August 2, 1976. These regulations a ppl y to laser product s manufactured from August 1, 1976. Complianc e is mandatory for products mar keted in the United States.

WARNING: Use of controls or adjustments or per f or m ance of pr ocedur es

other than those specifi ed her ein or in the CD ROM installation guide may result in hazardous radiation exposure.

This system is classified as a CLASS 1 LASER PRODUCT. This label is located on the outside of the system being serviced. A similar label also appears on the internal CD-ROM installed in the system.

LASER INFO Laser Type: Semiconductor GaAIAs

Wave Length: 780 +/- 35 nm Divergence Angle: 53.5 Degree +/- 1.5 Degree Output Power: Less than 0.2mW or 10,869 W Polarization: Circular Numerical Aperture: 0.45 +/- 0.04

Only authorized t echnicians, ser vice provider, dealer, or reseller should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the com plexity of the individual boards and subassembl ies, no one should attempt to make re pairs at the com ponent level or to make modifications to any printed wiring boar d. Improper repairs ca n create a safety hazard as well as void the warranty.

xii Preface

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Battery Notice

This computer contains an internal lithium battery-powered real-time clock circuit. There is a risk of explosion and injury if the battery is incorrectly replaced or handled improperly. Do not attempt t o recharge, disassemble, immerse in wa ter, or dispose of it in fire. Replacement should be done using the Compaq spar e part for this computer.

The computer also contains a nickel metal hydride or lithium-ion battery pack. There is a risk of fi re and chemical burn if the battery pack is handled improperly. Do not disassemble, c rush, puncture, short external cont acts, dispose in fire or water , or expose it to tempe ratures higher than 60 degrees C.

In North America, dispose of nickel meta l hydride or lithium-ion batter i e s by taking advantage of the Compaq battery recycling program. You will be provided with a postage-paid battery pack mailer preaddressed to a reclamation facility where the metals are recycled.

In Europe, do not dispose of batteries and accumulator s with general household waste. Dispose of or recycle them by using the public collect ion system or ret urning them to Compaq.

Serial Number

The serial number is located on the back of the computer directly below the parallel connector.

Preface xiii

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Locating Additional Information

The followi ng documentation i s available to suppor t the products:

■ Quick Setup

■ Reference Guide

■ Introducing Microsoft Windows 95

■ Compaq Service Quick Reference Guide

■ Service Training Guides

■ Compaq Service Advisories and Bulletins

■ Compaq QuickFi nd

■ Technical Reference Guide

xiv Preface

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Preface

Symbols xi Technician Notes xi Laser Safety xii CDRH Regulations xii Battery Notice xiii Serial Number xiii Locating Additional Information xiv

Chapater 1

Computer Product Description

1.1 Computer F eatures and M odels 1-1

1.2 Standard F eatures 1-2

1.2.1 Software Fulfillment 1-3

1.3 Options 1-4

1.3.1 Convenience Base 1-4

1.3.2 System Memory Options 1-4

1.3.3 Externa l Battery Charge r 1-5

1.3.4 External Keyboards and Pointing Device s 1-5

1.3.5 External Monitors 1-5

1.4 Externa l Computer Components 1-6

1.4.1 Front and Left Side Components 1-6

1.4.2 Right Side Components 1-7

1.4.3 Rear Components 1-8

1.4.4 Bottom Components 1-9

1.4.5 Status Pa ne l Lights 1-10

Chapter 2

Convenience Base Description

2.1 Models and Features 2-1

2.2 Convenience Base F eatures 2-3

2.3 Convenience Base Components 2-4

2.3.1 Front and Right Side Components 2-4

2.3.2 Rear Components 2-6

Contents v

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Chapter 3

Troubleshooting

3.1 Preliminary Steps 3-2

3.2 Clearing the Power-On and Setup Passwords 3-3

3.3 Power-O n Self Test (POST) 3-4

3.4 POST Error Messages 3-4

3.5 Compaq Utilities 3-7 Running Computer Setup 3-7 Running Computer Che ckup (TEST) 3-8 View System Information (INSPECT) 3-10

3.6 Diagnostic E rror Codes 3-11

3.7 Troubleshooting Without Diagnosti cs 3-17

3.7.1 Solving Minor Problems 3-17

Chapter 4

Illustrated Parts for the Computer

4.1 System Unit 4-2

4.2 Mass Stora ge Devices 4-4

4.3 Cables and Power Cords 4-6

4.4 Standard and Optional Boards 4-8

4.5 Options 4-10

4.6 Miscella neous Parts 4-12

4.8 Shipping Boxes 4-14

4.9 Document ation 4-14

Chapter 5

Illustrated Parts for the Convenience Base

Chapter 6

Removal and Replacement Preliminaries

vi Contents

5.1 System Unit 5-2

6.1 Electrostatic Discharge 6-1 Generating Static 6-1 Preventing Electrostatic Damage to Equipment 6-2 Removing Batteries 6-2 Preventing Damage to Drives 6-3

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Grounding Methods 6-3 Grounding Workstati ons 6-4 Grounding Equipm ent 6-4 Recommende d Materials and Equipment 6-5

6.2 Service Consi derations 6-6 Tool Requirements 6-6 Cables and Connectors 6-6

6.3 Serial Number 6-6

Chapter 7

Computer Removal and Replacement Procedures

7.1 Serial Number 7-1

7.2 Disassembly Se quence Chart 7-2

7.3 Design Overview 7-3

7.3.1 System U ni t 7-3

7.3.2 Internal Boards 7-3

7.3.3 Video system 7-4

7.4 Prepari ng t he Computer for D i sassembly 7-5

7.4.1 Disconnecting the AC Powe r 7-5

7.4.2 Undocking the Computer 7-5

7.4.3 Batter y P a ck 7-6

7.4.4 DualBay Devices 7-8

7.4.5 PCMCI A 7-9

7.5 Modem 7-10

7.6 CD-ROM Drive 7-11

7.7 Keyboard 7-13

7.8 Memor y Board 7-16

7.9 Hard Drive 7-19

7.10 Lithium Re a l Time Clock Batt ery 7-21

7.11 Microphone /Display Cable Cover and Microphone 7-23

7.12 Clutch Covers/Display Assembly 7-26

7.12.1 Clutch Covers 7-26

7.12.2 Display Assembly 7-27

7.12.3 Clutches 7-28

7.12.4 Display l atches 7-32

Contents vii

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7.13 Top Cover Assembly 7-34

7.13.1 Power Button 7-36

7.13.2 Suspend Button 7-37

7.13.3 Left and Right Touchpad Butt ons 7-38

7.14 LED Status Panel 7-40

7.15 Audio Board, S peakers, and Audio Ca ble 7-41

7.16 DC-DC Conver t er 7-43

7.17 Fan 7-47

7.18 I/O Fixt ure Connector 7-49

7.19 System Board 7-51

7.20 AC Power 7-53

7.21 Externa l Computer Components 7-54

7.21.1 Computer Logo 7-54

7.21.2 Computer Feet 7-54

Chapter 8

Upgrade Procedures for the Convenience Base

8.1 Serial Number 8-1

8.2 Preliminary Procedure 8-1

8.2.1 Installing the Optional 100BaseT Ether net Network Module 8-2

Chapter 9

Specifications

9.1 Computer 9-2

9.2 Displays 9-3

9.3 Hard Drives 9-4

9.4 Diskette Drive 9-5

9.5 CD-ROM Drive 9-6

9.6 Battery Pa cks 9-7

9.7 Convenience Base 9-8

9.8 External Power Supplies 9-9

9.9 System Int errupts 9-11

9.10 System DM A 9-11

9.11 System I/ O Address 9-12

9.12 System Memory Map 9-14

viii Contents

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Appendix A

Comput

A-1

Appendix B

Power Cord Set Requirements

3-Conductor Power Cord Set B-1

General Requirements B-1 Country-Specific Requirem ents B-2 Notes: B-2

Appendix C

Modem Commands

C-1

Index I-1

Contents ix

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Chapter 1

Computer Product Description

1.1 Computer Featur es and Models

The Compaq Armada 1500 Family of Personal Com pute rs is a line of multimedia notebook computers with advanced modularity, processors, and video graphics. This full-funct i on, Pentium-based, family of notebook computers allows full desktop functionality and connectivity thr ough the use of an optional Convenience Base. The following computer models are available:

Table 1-1

Compaq Armada Personal Computers

Model

1510 120-MHz 11. 3-inch CSTN 1.0-GB BM51 1510DM 120-MHz 11.3-i nch CSTN 1.0-GB ■■BM52 1520 133-MHz 11. 3-inch CSTN 1.0-GB 256-Kbyte BM53 1520D 133-MHz 11. 3-inch CSTN 1.0-GB 256-Kbyte 1520DM 133-MHz 11.3-i nch CSTN 1.0-GB 256-Kbyte 1550T 133-MHz 12. 1-inch CTFT 1.4-GB 256-Kbyte BM56 1550DMT 133-MHz 12.1-inch CTFT 1.4-GB 256-Kbyte

Pentium Processor Display Hard Drive

Level 2 Cache CD-ROM Modem

■ BM54

■■BM55

■■BM57

Serial Configuration

NOTE: All models have 16-MB of standa rd memory, upgradable to 80- MB.

Computer Product Description 1-1

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Figure 1-1. Compaq Armada Personal Computer

1.2 Standard Featur es

The Compaq Armada models have the following sta ndard features :

■ 120- or 133-MHz Pentium processors

■ 16-MB of EDO dynamic ra ndom access memory (DRAM) , expandable to 80 MB

■ 1.4-GB or 1. 0-GB, 2.5- inch with carr ier, or 3-i nch hard drive

■ 11.3-inch Color Super Twist Nematic CSTN, or 12.1-inch Color Thin Film

Transistor (CTFT) SVGA displays

■ Supports Lithi um Ion (Li- ion) and Nickel Metal Hydri de (NiMH) modular batte ry

packs

■ SoundBlaster−compatible audio controller with internal stereo speakers and internal

microphone

■ Full-size 101 key compatible keyboard including 12 f unction keys, 8 cursor control

keys, inverted-T cursor control keys, and embedded numeric keypad

■ Four user-programma bl e keys

■ Touchpad pointing device

■ Operates from an internal battery pack, plus an optional battery pack in the

DualBay, or integrated AC power that is compatible with domestic or international power sources

■ Power management and security features

1-2 Computer Product Description

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■ Infrared interface for wireless communication with other IrDA-compliant devices at

data rates up to 4 mb/sec

■ Two standard device slots that will accommodate two types I and II and one type III

PC Cards, PCMCIA and CardBus car ds; Compaq Telephony modem in the top slot and Zoomed-V i deo in the bottom slot

■ 176 pin expansion connector provides the interface to the convenience base options

■ Rear-panel ports provide connec t ions for parallel and serial, external monitor,

keyboard/mouse , and IrDA compliant infrared devices

1.2.1 Software Fulfillment

Replacement software may be ordered directly from Compaq Computer Corporation. Both the model and the serial numbers of the computer are needed to identify the specific software available.

Computer Product Description 1-3

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1.3 Options

The compute r supports the fol l owing options:

■ Convenience Base pa ss t hrough model

■ Convenience Base w i th Ethernet

■ Memory expansion boards

■ Li-ion and Ni MH battery packs

■ Automobile Adapter

■ External Battery Charger

■ PCMCIA modem

■ AC power cords for international travelers

■ Hard drive upgrade

■ Internal modem

■ Internal CD-ROM drive

1.3.1 Convenience Base

Compaq Arma da models support the following convenience base models:

■ Convenience base pa ss t hrough

■ Convenience base w i th Ethernet (RJ-45 and BNC connectors); BNC connector not

available in North America

■ Convenience base with Ethernet (BNC connector); not avail able in North America

1.3.2 System Memory Options

The compute r supports optional 8-, 16-, 32-, and 64-MB memory boards. The memory boards are 60 ns EDO RAM without parity. System memory can be e xpanded to 80-MB of DRA M depending on the model.

1-4 Computer Product Description

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1.3.3 External Battery Charger

The External Battery charger has the following features:

■ Two battery charge slots

■ Accepts both NiMH and Li-ion modular batteries

■ Charges one batte ry in 1.5 hours

■ Charges two batt eries in 3 hours

1.3.4 External Keyboards and Pointing Devices

Supports Compaq or Compaq compatible PS2 keyboar ds and pointing devices

1.3.5 External Monitors

The Compaq Armada models support all VGA Monitors up to 1024 x 768.

Computer Product Description 1-5

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1.4 External Computer Components

The external computer components are illustrated and described in this section.

1.4.1 Front and Left Side Components

The front and l eft side exter na l components are shown in the following f igure and identified in this section:

Display latches

Battery charge light

Power/Suspend light

DualBay compartment

PC Card slots

PC Card eject levers

RJ-11 port (on some models)

Figure 1-2. Front and Left Side Components

1-6 Computer Product Description

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1.4.2 Right Side Components

The right side e xternal component s are shown in the fol l owing figure and ide nt i fied in this section:

Battery bay

Stereo/spe aker headphone ja ck

Microphone jack

Volume control buttons

CD-ROM drive (on some models )

Cable lock provision

Figure 1-3. Right Side Components

Computer Product Description 1-7

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1.4.3 Rear Components

The rear components are shown in the following fi gure and identified in this section:

Serial connector

Serial number

Parallel connector

External monitor connect or

AC Power connector

Docking connector

Airflow vents

Infrared port

Keyboard/Mouse connector

Figure 1-4. Rear Components

1-8 Computer Product Description

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1.4.4 Bottom Components

The bottom external components are shown in the following fi gure and are identified in this section:

Docking alignm ent guide

Modem compartment

Diskette drive

Diskette drive release latch

Docking latch receptacles

Battery bay traction grip

Figure 1-5. Bottom Components

Computer Product Description 1-9

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1.4.5 Status Panel Lights

The status panel lights are shown in the following figure and are identified in this section:

Hard drive light

Diskette drive light

Num Lock light

Caps Lock light

Scroll Lock light

Figure 1-6. Status Panel Lights

1-10 Computer Product Description

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Chapter 2

Convenience Base Description

2.1 Models and Features

The convenience bases provide a permanent desktop solution for the computer by eliminat ing the need to disconne ct external devices such as a printer, keyboard, or monitor when you undock the computer. All necessary connections and disconnections are made automatically when the computer is docked and undocked. The f ollowing convenience models are available:

Table 2-1

Compaq Armada 1500 Family of Convenience Bases

Model Serial Configuration

Convenience Base Pass Through model BNH3 Convenience Base wi th Ethernet BNH1 Convenience Base wi th Ethernet, BNC model BNH3

Convenience Base Description 2-1

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Figure 2-1. Compaq Armada 1500 Convenience Base

2-2 Convenience Base Description

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2.2 Convenience Base Features

The Convenience Ba se pass through model and the convenience base with Ethernet model include the following features:

Convenience Base

pass through

Convenience Base

with Ethernet

Connections

Speaker/headphone ■■ Audio Line-In ■■ Serial ■■ Parallel ■■ External Monitor ■■ Keyboard ■■ Pointing Device ■■ MIDI/Joystick ■■

Other Features

Cable lock provision ■■ Pass through AC Power ■■ BNC connector (not available in all count ries) ■ RJ-45 connector ■

Options

Monitor Stand ■■ Localized Power Cords ■■ Kensington lock ■■ Optional 100BaseT Ethernet Upgrade ■■

Convenience Base Description 2-3

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2.3 Convenience Base Components

The convenience base components are illustrate d and described in this section.

2.3.1 Front and Right Side Components

The front and right side convenienc e base components are shown and identifi ed in this section.

Power button

Security cable lock provision

Docking lever

Battery charge light

Suspend button

Power/Suspend light

Retaining latch

Pass through AC power outlet

Docking connector

Docking alignm ent pins

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Docking latches

2-4 Convenience Base Description

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Figure 2-2. Convenience Base Front and Right Side Components

Convenience Base Description 2-5

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2.3.2 Rear Components

The rear components are shown in the following fi gure and identified in this section:

BNC connector ( available on some models)

RJ-45 jack

Serial connector

Parallel connector

External monitor connect or

MIDI/Joystick connector

Pointing device connector

Keyboard connector

Speaker/he adphone jack

Audio Line-i n jack

;

Fan

AC power connector

2-6 Convenience Base Description

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Figure 2-3. Convenience Base Rear Components

Convenience Base Description 2-7

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Chapter 3

Troubleshooting

This chapter contains troubleshooting information for the computer and the convenience base . The basic steps in t roubleshooting the com puter include:

1. Completing the preliminary steps listed in Section 3.1.

2. Running the Powe r-On Self-Test (PO ST) as described in Section 3.3.

3. Running Computer Setup as descr ibed in Section 3. 5

4. Running the Computer Checkup (TEST) as described in Section 3.5.

5. Perfor ming the recom mended actions desc ribed in the diagnostic tables in Section

3.6 if you are unable to exerc i se POST or Com puter Checkup or if the problem persists after running POST and Computer Checkup.

Follow these guidelines when troubleshooting:

■ Complete the recomme nded actions in the order in which they are given.

■ Repeat POST and Computer Checkup after each recom mended action until the

problem is r esolved and the err or message does not r eturn.

■ Once the probl em is resolve d, do not complete the remaining recommended actions.

■ Refer to Chapter 7 for any removal and replacement procedures that are

recommended for the computer. Refer to Chapter 8 for any removal or replacement procedures t hat are recommended f or the convenience base.

■ If the problem is inte rmittent, check the computer or convenience base several times

to verify that the problem is solved.

Troubleshooting 3-1

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Use the following table for quick reference to troubl eshooting information:

If You Want To: 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 fol l owi ng:

Check the system co n figuration

Set the system power managem ent parameters

Return the syst em to its original configuration

Check system conf iguration of installed d evices

Computer Checkup (TEST) under Compaq Utilities

View System Inform ation (INSPECT)under Compaq Utilities

Computer Setup

3.1 Preliminary Steps

IMPORTANT: Use AC Power whe n running POST, Computer Setup, or Computer

Checkup. A low-battery condition could initiate Suspend or Hiberna tion a nd interrupt the test.

Before running P OST and Computer Checkup, complete the following steps:

1. Obtain esta blished passwords. I f you must clear the passwords, go to Se ction 3.2.

2. Ensure that the hard drive is installed in the computer.

3. Ensure that the battery pack is installed in the computer and the AC power is connected to the computer and plugged into an AC power source.

4. Turn on the c omputer.

5. If a powe r-on password has bee n e s t ablished, type the pa ssword and press Enter.

NOTE: The key icon appea rs on the display when the computer is turned on to indicate that QuickLock/QuickBlank has been initiated. Type the power-on password to exit QuickLock/QuickBlank. If the password is unknown, it must be cleared (see Section 3.2).

6. Run Computer Setup (Section 3.5).

7. Use the Hotkeys to adjust the contrast (Fn+F9) and brightness (Fn+F10) to the center of their ra nges and leave the display open. On models w ith color TFT displ ays, contrast is not a pplicable.

8. Turn off the computer and all external devices.

9. Disconnect any external devic es that you do not want to test. If you want t o use the printer to log error messages, leave it connected to the computer.

3-2 Troubleshooting

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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 w ith and without the external device connected.

10. Use Advanced Di agnostics and loopback plugs in t he serial and parallel connector s if you plan to test t he s e ports. You may r un Advanced Diagnostic s from the hard drive or from a diskette .

If you are r unni ng Diagnostics from the hard drive, complete the following steps:

a. Turn on or restart the computer. b. Press F10 when the cursor appear s in the upper right corner of the screen. If you

do not press F10 in time, restart the computer and try again. The Welcome screen appears.

If you are r unning Diagnostics fr om a diskette, c omplete the following steps:

a. Insert the Diagnostics diske t te into the diskette drive and turn on the computer. b. At the Welcome Screen, press Enter to accept OK. c. Select Computer Checkup (TEST). d. Select Prompted Diagnostics after " Identifying System Hardware" completes. e. Select Interactive Testing and follow the displayed instructions.

Refer to Chapter 4 for the description and spare pa rt number of t he loopback plugs. After completing the prel i minary steps, run POST (Sec t ion 3.3) and Computer Checkup

(Section 3.5).

3.2 Clearing the Power-On and Setup Passwords

The power-on password prevents use of the computer until the password is entered. The setup password pre vents unauthorized changes to Computer Se tup. To clear t he passwords, you must remove all power from the syst em board. If you do not know the passwords, use the following procedure to clear the password:

1. Remove all battery packs from the batte ry bay and DualBay, i f applicable.

2. Disconnect the AC power.

3. Remove the real time clock battery.

4. Wait five minutes.

5. Reconnect the AC power.

6. Restart the computer. During the Power-On Self Test (POST), a "162 System Options not Set" message appears. (See Secti on 3.4 for additional POST error messages).

7. Shut down the computer, t hen turn off the power again.

Troubleshooting 3-3

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