Compaq Armada 1500C series Manual de usuario

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Preface ix

reface

This Maintenance and Service Guide is a troubleshooting guide that can be used for

reference when servicing the Compaq Armada 1500c Series.

Compaq Computer Corporation reserves the right to make changes to the computer

without notice.

Additional information is available on the Compaq Armada 1500c Series 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 fa

ilure 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 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.

!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 your system, you must provide at least 3 inches

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

xPreface

Serial Number

When requesting information or ordering spare parts, provide the computer serial

number. The serial number is displayed on the rear of the computer.

Locating Additional Information

The following documentation is available to support the computer:

■ Compaq Armada 1500c Series documentation set

■ Microsoft operating system user’s guide

■ Service Training Guides

■ Compaq Service Advisories and Bulletins

■ Compaq QuickFind

■ Compaq Service Quick Reference Guide

■ Compaq Armada 1500c Series Maintenance and Service Guide

■ Compaq Armada 1500c Series Illustrated Parts Map

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

Computer Product Description 1-1

chapte

COMPUTER PRODUCT

DESCRIPTION

1.1 Computer Features and Models

The Compaq Armada 1500c Series is a line of multimedia notebook computers with

advanced modularity, processors, and video graphics. This full-function, Celeron-based

series of notebook computers allows full desktop functionality and connectivity

through the use of an optional Convenience Base II.

Figure 1-1. Compaq Armada 1500c Personal Computer

1-2 Computer Product Description

1.2 Standard Features

The Compaq Armada 1500c Series models have the following standard features:

■ 266- or 300-MHz Celeron processors with 128-Kbyte embedded cache memory

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

160 MB

■ 4.0-, 5.0-, or 6.0-GB, 2.5-inch (12.7mm) internal hard drive

■ 12.1-inch Color Thin Film Transistor (CTFT) SVGA or 12.1-inch Dual Supertwist

Nematic (DSTN) SVGA display

■ Nickel Metal Hydride (NiMH) modular battery pack

■ SoundBlaster−compatible audio controller with internal stereo speakers and 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

■ Power Sources include the following:

❏ Internal Nickel-Metal Hydride (NiMH) modular battery pack

❏ External AC adapter

■ Power management and security features

■ Two standard device slots that will accommodate two type I or II PC Cards, or one

type III PC Card, PCMCIA, and CardBus cards

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

■ Rear-panel ports provide connections for USB, parallel and serial, external monitor,

and keyboard/mouse

■ Integrated 56Kbps modem (North America only)

■ CD-ROM Drive or DVD-ROM Drive

■ Quick Restore CD

1.2.1 Software Fulfillment

Replacement software can 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

1.3 Options

The computer supports the following options:

■Convenience Base II pass through model

■Convenience Base II with Ethernet

■Memory expansion boards

■Li-Ion battery pack

■Aircraft/Automobile adapter

■External battery charger

■PCMCIA modem

■AC power cords

■Hard drive upgrade

■Internal DVD-ROM drive

1.3.1 Convenience Base II

The computer supports the following convenience base models:

■Convenience Base II pass through

■Convenience Base II with Ethernet

1.3.2 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 of DRAM.

Table 1-1 describes the possible memory configurations for the computer.

Table 1-1

Memory Configuration

SODIMM Module Present Total System Memory

No SODIMM present 32 MB

16 MB 48 MB

32 MB 64 MB

64 MB 96 MB

128 MB 160 MB

Any EDO in Celeron 32 MB (EDO not usable)

If an EDO memory module is placed into a Celeron system, a POST error message may

be printed to the screen. The new message will read “This expansion memory type

(EDO) is not supported.”

1-4 Computer Product Description

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 battery in 3 hours or less

1.3.4 External Keyboards and Pointing Devices

Supports Compaq or Compaq-compatible PS/2 keyboards and pointing devices

1.3.5 External Monitors

The computer supports VGA Monitors up to 1280 x 1024.

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 unit attached to a system

unit. The computer opens to reveal a backlit LCD display and a full-sized keyboard.

The display is designed for a continuously adjustable tilt angle.

1.4.2 Internal Boards

The system electronics are integrated on seven printed circuit assemblies: the LED

status board, I/O fixture connector, audio board, system board, modem board, and the

DC-DC converter board. An optional memory board is available that expands the

system memory up to 160 MB.

■The LED status board connects the system board to the display cables and supports

the status LEDs.

■The DC-DC converter board creates the system voltages (3.3v and 5.0v) from the

battery or from the 14 VDC external power supply output.

■The system board integrates the processor, memory, local bus video adapter,

PCMCIA/CardBus adapter, and audio controller.

Processor

The processor located on the system board is a 266- or 300-MHz Intel Celeron

processor with 128-Kbyte embedded cache.

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.

Computer Product Description 1-5

Cache

128-Kbyte cache is integrated with the Celeron processor. It is not user upgradable.

Audio Controller

The audio controller is located on the system board. The audio amplifiers and

connectors are on the audio board printed circuit assembly.

PCMCIA/CardBus and Video Adapter Controller

The PCMCIA/CardBus adapter is based on the Texas Instrument PCI1225 PC to

CardBus controller unit. The local bus video adapter is the Chips and Technologies

69000 controller.

■The serial-parallel port board expands the serial and parallel signals from the system

board to the serial and parallel expansion connectors.

■The audio board supports the microphone and headphone jacks, the volume control

switches, and the amplifier and equalization circuitry.

1.4.3 Video System

The standard video subsystem consists of:

■12.1 inch STN SVGA display

■12.1 inch CTFT SVGA display

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

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

displays

1-6 Computer Product Description

1.5 External Computer Components

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

1.5.1 Front and Left Side Components

The front and left side external components are shown in the following figure and

identified in this section:

1 Display latches

2 Power connector

3 RJ-11 connector (on some models)

4 PC Card eject levers

5 PC Card slots

6 DualBay compartment

7 Power/Suspend light

8 Battery charge light

Figure 1-2. Front and Left Side Components

Computer Product Description 1-7

1.5.2 Right Side Components

The right side external components are shown in the following figure and identified in

this section:

1 Battery bay

2 Stereo/speaker headphone jack

3 Microphone jack

4 Volume control buttons

5 CD-ROM drive or DVD-ROM drive

6 Cable lock provision

Figure 1-3. Right Side Components

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