Compaq Armada 1700 Service Manual

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Maintenance and Service Guide

Armada 1700 Family of Personal Computers

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Compaq Computer Corporation

ONTENTS

preface

SING THIS GUIDE

Symbols.................................................................................................................................................. iv

Technician Notes......................................................................................................................................v

Serial Number...........................................................................................................................................v

Laser Safety..........................................................................................................................................v

CDRH Regulations ..............................................................................................................................v

Battery Notice .................................................................................................................................... vi

Serial Number ...................................................................................................................................vii

Locating Additional Information.......................................................................................................... vii

chapter 1

RODUCT DESCRIPTION

1.1 Computer Features and Models................................................................................................1-1

1.2 Computer Options.....................................................................................................................1-3

1.3 External Computer Components...............................................................................................1-4

1.4 Design Overview..................................................................................................................... 1-11

chapter 2

ROUBLESHOOTING

2.1 Preliminary Steps......................................................................................................................2-2

2.2 Clearing Passwords................................................................................................................... 2-3

2.3 Power-On Self-Test (POST).....................................................................................................2-3

2.4 POST Error Messages...............................................................................................................2-3

2.5 Compaq Utilities.......................................................................................................................2-7

2.6 Troubleshooting Without Diagnostics....................................................................................2-18

chapter 3

LLUSTRATED PARTS CATALOG

3.1 System Unit............................................................................................................................... 3-2

3.2 Mass Storage Devices............................................................................................................... 3-4

3.3 Cables and Power Cords...........................................................................................................3-5

3.4 Standard and Optional Boards..................................................................................................3-6

3.5 Options...................................................................................................................................... 3-7

3.6 Miscellaneous Parts................................................................................................................... 3-8

3.7 Documentation.......................................................................................................................... 3-9

chapter 4

EMOVAL AND REPLACEMENT PRELIMINARIES

4.1 Tools Required..........................................................................................................................4-1

4.2 Service Considerations..............................................................................................................4-1

Compaq Armada 1700 Family of Personal Computers 1

4.3 Preventing Damage to Removable Drives................................................................................ 4-2

4.4 Preventing Electrostatic Damage..............................................................................................4-3

chapter 5

EMOVAL AND REPLACEMENT PROCEDURES

5.1 Serial Number........................................................................................................................... 5-1

5.2 Disassembly Sequence.............................................................................................................. 5-2

5.3 Preparing the Computer for Disassembly................................................................................. 5-3

5.4 Computer Tilt Feet..................................................................................................................... 5-7

5.5 Internal Modem......................................................................................................................... 5-8

5.6 Hard Drive............................................................................................................................... 5-11

5.7 Keyboard.................................................................................................................................5-14

5.8 Display Assembly....................................................................................................................5-23

5.9 Top Cover Assembly ..............................................................................................................5-27

chapter 6

PECIFICATIONS

6.1 Computer...................................................................................................................................6-2

6.2 Display ......................................................................................................................................6-3

6.3 Hard Drives................................................................................................................................ 6-4

6.4 Diskette Drive............................................................................................................................ 6-5

6.5 LS-120 Drive.............................................................................................................................. 6-6

6.6 ZIP Drive.................................................................................................................................... 6-7

6.7 CD-ROM Drive.......................................................................................................................... 6-8

6.8 DVD-ROM Drive ......................................................................................................................6-9

6.9 Battery Packs............................................................................................................................ 6-10

6.10 Convenience Base..................................................................................................................6-11

6.11 External Power Supplies........................................................................................................6-12

6.12 System Interrupts...................................................................................................................6-14

6.13 System DMA.......................................................................................................................... 6-14

6.14 System I/O Address ...............................................................................................................6-15

6.15 System Memory Map.............................................................................................................6-17

appendix A

ONNECTORS

...............................................................................................................................................B-1

appendix B

OWER CORD SET REQUIREMENTS

3-Conductor Power Cord Set...........................................................................................................B-1

appendix C

ONVENIENCE BASE

C.1 Models and Features.................................................................................................................C-1

C.2 Convenience Base II Features..................................................................................................C-2

C.3 Convenience Base II Components...........................................................................................C-3

..........................................................................................................................................................I-1

NDEX

2 Compaq Armada 1700 Family of Personal Computers

Compaq Armada 1700 Family of Personal Computers 3

4 Compaq Armada 1700 Family of Personal Computers

preface

SING THIS GUIDE

This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq Armada 1700 Family of Personal Computers.

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Using This Guide vii

Technician Notes

WARNING:

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:

operation, plug the AC power cord into a properly grounded electrical outlet only.

CAUTION:

(7.62 cm) of clearance on the left and right sides of the computer.

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Only authorized technicians trained by Compaq should attempt to repair this

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The computer is designed to be electrically grounded. To ensure proper

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To properly ventilate your system, you must provide at least 3 inches

Serial Number

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viii Using This Guide

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Battery Notice

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time clock circuit. There is a risk of explosion and injury if the battery is incorrectly replaced or improperly handled. Do not attempt to recharge, disassemble, immerse in water, or dispose of the battery in fire. Replacement should be done using the Compaq spare part for this computer.

WARNING:

risk of fire and chemical burn if the battery pack is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose of in fire or water, or expose this battery to temperatures higher than 60 degrees C.

This computer contains an internal lithium battery-powered real-

The computer also contains a lithium-ion battery pack. There is a

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Using This Guide ix

Serial Number

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Locating Additional Information

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■

Compaq Armada 1700 Family of Personal Computers documentation set

■

Microsoft operating system guide

■

Compaq service advisories and bulletins

Compaq QuickFind

■

Compaq Service Quick Reference Guide

■

Technical Reference Guide

■

Illustrated Parts Map

■

Compaq Internet site at http://www.Compaq.com

x Using This Guide

chapter

RODUCT DESCRIPTION

1.1 Computer Features and Models

The Armada 1700 Family of Personal Computers is a line of multimedia notebook computers with advanced modularity, processors, and video graphics. This fullfunction, Mobile Pentium II-based family of notebook computers allows full desktop functionality and connectivity through the use of an optional Convenience Base.

Figure 1-1.

Armada 1700 Personal Computer

Product Description 1-1

1.1.1 Features

The computer models have the following standard features:

■

233-MHz or 266-MHz Mobile Pentium II processors

■

32-MB of synchronous dynamic random access memory (SDRAM), expandable to 160 MB

■

4.0-GB, 2.5- inch internal hard drive mounted in carrier

■

LCD displays:

❏

12.1 inch SVGA CTFT display

❏

13.3-inch XGA CTFT display

■

Supports Lithium Ion (Li-ion) battery packs

■

Internal stereo speakers

■

Internal microphone

■

Full-size 101 key compatible keyboard including 12 function keys, 8 cursor control keys, inverted-T cursor control keys, and embedded numeric keypad

■

Four user-programmable keys

■

Touchpad pointing device

■

Operates from a battery pack in the battery bay, plus an optional battery pack in the MultiBay, or integrated AC power supply that is compatible with domestic or international power sources

■

Power management and security features

■

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 Type II or one Type III PC Card, PCMCIA card or CardBus card. The Compaq telephony modem is supported in the top slot and Zoomed-Video in the bottom slot

■

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

■

Rear-panel ports provide connections for parallel, serial, external monitor, and keyboard/mouse

■

Universal Serial Bus (USB)

(available on selected models)

1.1.2 Models

Compaq Armada 1700 computers are configurable, and may contain any or all of the features listed. All models have 32-MB of standard memory, and may be upgraded to 160-MB.

1.1.3 Software Fulfillment

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

1-2 Product Description

1.2 Computer Options

The computer supports the following options:

■

Convenience Base II pass through model with monitor stand

■

Convenience Base II with Ethernet with monitor stand

■

Compatible with Convenience Base models from the Armada 1500 Family of Personal Computers

■

Memory expansion boards

■

Li-ion battery pack

■

Automobile/Aircraft Adapter

■

External Battery Charger

■

PCMCIA modem

■

Hard drive upgrade

■

Hard drive adapter for MultiBay with carrying case

■

Internal modem

■

CD-ROM drive for Optical Disc Bay

■

DVD drive for optical Disc Bay

■

120-MB LS-120 diskette drive for MultiBay

■

100-MB Zip drive for MultiBay

1.2.1 Convenience Base II

Armada 1700 models support the following convenience base models:

■

Convenience Base II pass through

■

Convenience Base II with Ethernet

1.2.2 System Memory Options

The computer supports optional 16-, 32-, 64-, and 128-MB memory boards. The memory boards are 66-MHz SDRAM without parity. System memory can be expanded to 160-MB, depending on the model.

Windows 95 supports up to 115-kb/sec. Driver for 4 mb/sec available from www.microsoft.com.

Product Description 1-3

1.2.3 External Battery Charger

The external battery charger has the following features:

■

Two battery charge slots

■

Accepts Li-ion modular batteries

■

Charges one battery in 1.5 hours

■

Charges two batteries in 3 hours

The battery calibration process should be used to discharge the batteries.

Note:

1.2.4 External Keyboards and Pointing Devices

Supports Compaq or Compaq compatible PS2 keyboards and pointing devices.

1.2.5 External Monitors

■

Supports all VGA Monitors at resolutions up to 1280 u 1024

■

Supports DDC1 and DDC2b compliant Energy Star monitors

1.3 External Computer Components

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

1-4 Product Description

1.3.1 Left Side Components

The left side external components are shown in Figure 1-2 and are described in Table 1-1.

Figure 1-2.

Left Side Components

Table 1-1

Armada 1700 Computer Components

Left Side

Item Component Function

Cable Lock Secures computer to fixed object

Speaker/headphone jack Connects stereo speakers, headphone or headset

Microphone jack Connects external microphone, disables internal microphone

Volume up Increases volume

Volume down Decreases volume

Left bass reflex speaker port Enhances audio quality

Product Description 1-5

1.3.2 Front Components

The front external components are shown in Figure 1-3 and are described in Table 1-2.

Figure 1-3.

Front Components

Table 1-2

Armada 1700 Computer Components

Item Component Function

Display LCD graphic display

Lid switch Blanks display when display is closed

Speakers Produce high quality stereo sound

MultiBay Accepts diskette drive, LS-120 drive, ZIP drive, second battery

Optical disk bay Accepts CD-ROM or DVD-ROM devices

Battery bay Accepts Li-Ion battery pack

Keyboard Accepts operator input

Microphone Monophonic microphone

pack or second hard drive

Front

1-6 Product Description

1.3.3 Top Components

The top external components are shown in Figure 1-4 and are described in Table 1-3.

Figure 1-4.

Top Components

Table 1-3

Armada 1700 Computer Components

Top

Item Component Function

Lid switch Blanks display when display is closed

Programmable function buttons User programmable keys

Suspend Initiates suspend

Power switch Turns power on and off

Keyboard release latched Releases keyboard from system unit

Touchpad Pointing device

Product Description 1-7

1.3.4 Right Side Components

The right side external components are shown in Figure 1-5 and are described in Table 1-4.

Figure 1-5.

Right Side Components

Table 1-4

Armada 1700 Computer Components

Right Side

Item Component Function

Right bass reflex speaker port Enhances audio quality

PC Card eject button Eject PC Cards from the slots

PC Card slots Accepts 16- and 32-bit PC Cards

USB Connector Connects USB devices to the computer

Modem jack Connects the phone line to the computer (selected models)

1-8 Product Description

1.3.5 Rear Components

The rear components are shown Figure 1-6 and are described in Table 1-5.

Figure 1-6.

Rear Components

Table 1-5

Armada 1700 Computer Components

Item Component Function

Parallel connector Connects parallel devices such as a printer

Serial connector Connects serial devices such as a mouse

Infrared port Provides wireless communications (on selected models)

External monitor connector Connects external monitor

AC Power connector Connects external AC power

Docking connector Provides connection to optional convenience base

Fan (Airflow vents) Provides thermal ventilation to internal components

External Keyboard Connects external keyboard or PS-2 mouse

(Supports standard Y connector)

Rear

Product Description 1-9

1.3.6 Bottom Components

The bottom external components are shown in Figure 1-7 and are described in Table 1-6.

Figure 1-7.

Bottom Components

Table 1-6

Armada 1700 Computer Components

Bottom

Item Component Function

Modem compartment Integrated modem (selected models)

Docking alignment guide Aligns computer to optional convenience base

Docking latch receptacles Locks computer to optional convenience base

Tilt feet Adjusts computer to an angle

MultiBay screw Secures MultiBay Devices

Hard drive cover Covers hard drive compartment

* Hard drive security screw Secures hard drive cover (not shown)

1-10 Product Description

1.3.7 Status Panel Lights

The status panel lights are shown in Figure 1-8 and described in Table 1-7.

Figure 1-8.

Status Panel Lights

Table 1-7

Armada 1700 Computer Components

Status Panel

Item Component Function

Hard drive activity light Indicates hard drive or CD-ROM access

MultiBay activity light Indicates MultiBay device activity

Number lock indicator Indicates that numbers lock is on

Caps lock indicator Indicates that caps lock is on

Scroll lock indicator Indicates that scroll lock is on

Product Description 1-11

1.4 Design Overview

This section presents a design overview of the computer. The overview is limited to field replaceable parts. All replacement parts are listed in Chapter 3.

1.4.1 System Unit

The computer is a traditional clamshell design with a display assembly attached to a system unit. The computer opens to reveal a backlit LCD display and a full-function keyboard. The display is designed for a continuously adjustable tilt angle.

1.4.2 Internal Boards

The system electronics are integrated on four printed circuit assemblies: the audio/led board, system board, modem board, and the DC-DC converter board.

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The audio/led board provides support for the audio functions.

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The system board integrates the processor, on-board memory, level 2 cache, local bus video adapter, and PCMCIA/CardBus adapter.

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The optional modem board supports data or fax functions.

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The DC-DC converter board creates the system voltages (3.3v and 5v) from the battery or AC/DC input.

Processor

An Intel Mobile Pentium II processor is located on the system board for the 233 MHz and 266 MHz models.

Memory

Base memory is 32-MB with 16-, 32-, 64-, or 128-MB of optional expansion memory. Base memory is onboard memory built into the system board. Expansion memory consists of one memory expansion board available as a user installable option.

Cache

Level 2 cache is integrated in the CPU module. It is not user upgradable.

PCMCIA/CardBus and Video Adapter Controller

The PCMCIA/CardBus adapter is based on the Texas Instrument PCI1220 PC to CardBus controller unit. The local bus video adapter is the Chips and Technologies 65555 controller.

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The serial-parallel port board expands the serial and parallel signals from the system board to the serial and parallel expansion connectors.

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The audio/led board supports the microphone and headphone jacks, the volume control switches, and the amplifier and equalization circuitry.

1-12 Product Description

1.4.3 Video system

The standard video subsystem consists of:

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An internal LCD Display

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12.1 inch SVGA CTFT display

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13.3 inch XGA CTFT display

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2 Megabyte frame buffer

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An inverter to supply AC power to the LCD back-light system

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A standard external VGA connector for use with CRTs and other VGA compatible displays

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40 KByte Video ROM

Product Description 1-13

1-14 Product Description

chapter

ROUBLESHOOTING

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.

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Repeat POST and Computer Checkup after each recommended action until the

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problem is resolved and the error message does not return. When the problem is resolved, stop performing the troubleshooting steps and do not

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complete the remaining recommended actions. Refer to Chapter 5 for removal and replacement procedures that are recommended.

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If the problem is intermittent, check the computer several times to verify that the

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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

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Set the system power management parameters

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Return the system to its original configuration

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Check system configuration of installed devices

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Computer Checkup (TEST) under Compaq Utilities

View System Information (INSPECT) under Compaq Utilities

Computer Setup

Troubleshooting 2-1

2.1 Preliminary Steps

IMPORTANT:

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

6. Run Computer Setup (Section 2.5). If a Setup password has been established, type the password and press

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:

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:

Use AC power when running POST, Computer Setup, or Computer

Enter.

If a problem only occurs when an external device is connected to the computer,

a. If you are running Compaq Utilities from the hard drive, turn on or restart the

computer. Press screen. If you do not press

If you are running Compaq Utilities from diskette, insert the Compaq Utilities

diskette in drive A. Turn on or restart the computer. b. Press 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.

Enter

to accept

when the cursor appears in the upper right corner of the

F10

in time, restart the computer and try again.

F10

2-2 Troubleshooting

2.2 Clearing Passwords

The power-on password prevents use of the computer until the password is entered. The setup password prevents unauthorized changes to Computer Setup. To clear the passwords, you must remove all power from the system board. If you do not know the passwords, use the following procedure to clear the password:

1. Remove all battery packs from the battery bay and MultiBay, if 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 Power-On Self Test (POST), a “162 System Options not set” message appears.

7. Shut down the computer, then disconnect AC power again.

8. Replace the real-time clock battery.

9. Install the battery pack(s).

10. Proceed with the troubleshooting procedures.

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 2.6.

If POST detects an error, one of the following events occurs:

A message with the prefix "WARNING" appears informing you where the error

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occurred. The system pauses until you press F1 to continue. A message with the prefix "FATAL" appears informing you where the error

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occurred. After the message, the system emits a series of beeps and stops. The system emits a series of beeps and stops.

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Troubleshooting 2-3

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:

to run Computer Setup. (Computer Setup replaces the SCU utility.)

F10

When a WARNING message includes the prompt to "RUN SCU," press

2-4 Troubleshooting

If you receive one of the error messages listed below, follow the recommended action.

Table 2-1

Warning Messages

Message Description Recommended Action

CMOS checksum invalid, run SCU CMOS RAM information has

been corrupted.

CMOS failure, run SCU CMOS RAM has lost power. Run Computer Setup to reinitialize

Diskette controller error The diskette drive controller

failed to respond to the recalibrate command.

Diskette track 0 failed The diskette drive cannot read

track 0 of the diskette in the drive.

Hard disk controller error The hard drive controller failed

to respond to the reset command.

Keyboard controller failure The keyboard failed the self-

test command.

Keyboard failure The keyboard failed to respond

to the RESET ID command.

No interrupts from Timer 0 The periodic timer interrupt is

not occurring.

ROM at xxxx (LENGTH yyyy) with nonzero checksum (zz)

Time/Date corrupt - run SCU The time and date stored in the

Hard disk xx failure (or error) A failure or an error occurred

Unsupported memory module An EDO memory module was

An illegal adapter ROM was located at the specified address.

real time clock have been corrupted, possibly by a power loss.

when trying to access the hard drive.

installed in the memory expansion slot.

Run Computer Setup to reinitialize CMOS-RAM.

CMOS-RAM. If there is no diskette drive in the

system, run Computer Setup to properly configure the CMOS-RAM to show no diskette drive present. If the problem persists, or if a diskette drive is present, complete these steps until the problems is solved:

1. Check diskette drive connections.

2. Replace diskette drive.

3. Replace system board. Try another diskette. If the problem

persists, you may need to replace the diskette drive.

Check the drive parameters. Turn off the system and check all related connections.

Replace the system board.

Replace the keyboard. If the problem persists, replace the system board.

Replace the system board.

Check the external adapter (such as a video card) to determine if it is causing the conflict.

1. Run Computer Setup.

2. If problem persists, replace auxiliary battery.

3. If problems persists, replace system board.

1. Run Scan disk.

2. Check disk in DOS and Windows 95. If problem persists, refer to Table 2-10.

Remove the EDO memory module and replace with SDRAM memory module.

Troubleshooting 2-5

Fatal errors emit a beep and may display a FATAL message. Fatal errors indicate severe problems, such as a hardware failure. Fatal errors do not allow the system to resume. Some of the Fatal error beep codes are listed at the end of this section.

Table 2-2

Fatal Error Messages

Message Description Beep Code

CMOS RAM test failed A walking bit test of CMOS RAM location 0E

(Hex) - 3F (Hex) failed.

DMA controller faulty A sequential read/write of the transfer count

and transfer address registers within the primary and secondary DMA controllers failed.

Faulty DMA page registers A walking bit read/write of the 16 DMA

controller page registers starting at location 80 Hex failed.

Faulty refresh circuits A continuous read/write test of port 61h found

that bit 4 (Refresh Detect) failed to toggle within an allotted amount of time.

Interrupt controller failed A sequential read/write of various Interrupt

Controller registers failed.

ROM checksum incorrect A checksum of the ROM BIOS does not match

the byte value at F000:FFFF.

RAM error at location xxxx RAM error occurred during memory test. None

Table 2-3

Fatal Error Beep Codes

Beep Code Beep Sequence Description Recommended Action

0 S-S-S-P-S-S-L-P The DMA page registers are

faulty. 1 S-S-S-P-S-L-S-P The refresh circuitry is faulty. 2 S-S-S-P-S-L-L-P The ROM checksum is incorrect. 3 S-S-S-P-L-S-S-P The CMOS RAM test failed. 4 S-S-S-P-L-S-L-P The DMA controller is faulty. 5 S-S-S-P-L-L-S-P The interrupt controller failed. 6 S-S-S-P-L-L-L-P The keyboard controller failed. 7 S-S-L-P-S-S-S-P Graphics adapter is faulty. 8 S-S-L-P-S-S-L-P Internal RAM is faulty. Replace memory board or

Replace system board.

system board if memory on system board is faulty.

S = Short, L = Long, P = Pause

2-6 Troubleshooting

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