Compaq 1906, 1919, 1922, 1920, 1910 User Manual

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Compaq.com - Compaq Discovery 1900 Series Maintenance and Service Guide - Models: 1905, 1910, 1915, and 1920

 

United States June 27, 2004

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Models and

Features

Controls and

Lights

Status Panel

Left Side

Components

Right Side

Components

Bottom of

Unit

Left Side

and Top

Wedge

Components

Right Side

Wedge

Components

Rear

Connectors

Port

Replicator

Connectors

Welcome to the Maintenance & Service Guide (MSG). This online guide is designed to serve the needs of those whose job it is to repair Compaq products. Many of the components of the hardcopy MSG are contained in this online guide. The Notice, contains the copyright and trademark information. The Preface shows symbol conventions, Technician Notes and Serial Number locations on the unit.

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Port

Replicator

Components

Power

Management

This MSG will be periodically maintained and updated online as needed.

For content comments or questions, contact the Editor.

To report a technical problem, contact your Regional Support Center or IM Help Center.

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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.

Ó 1998 Compaq Computer Corporation. All rights reserved. Printed in the U.S.A.

Compaq, Presario Registered U. S. Patent and Trademark Office.

Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation. Windows 98 is a trademark 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 Presario 1900 Series Portable Computers

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First Edition (Oct. 1998)

Compaq Computer Corporation

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Preface

This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq Presario 1900 Series Portable Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1900 Series Portable Computers without notice.

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 could result in damage to equipment or loss of data.

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

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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, the user should not attempt to make repairs at the component level or to make modifications to any printed circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printed circuit board modifications may void any warranty

Serial Number

When requesting information or ordering spare parts, the computer serial number should be provided to Compaq. The serial number is located on the bottom of the computer.

Locating Additional Information

The following documentation is available to support this product:

Compaq Presario 1900 Series Portable Computer documentation set

Introducing Windows 98 Guide

Service Training Guides

Compaq Service Advisories and Bulletins

Compaq QuickFind

Compaq Service Quick Reference Guide

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Product Description

Models and

Features

Controls and

Lights

Status Panel

Left Side

Components

Right Side

Components

Bottom of

Unit

Left Side

and Top

Wedge

Components

Right Side

Wedge

Components

Rear

Connectors

Compaq

Presario 1900 Series Portable Computers are a new generation of multimedia portable computers with an ultimate thin and lightweight design, outstanding audio and video, advanced core features, and attractive styling.

The

Removable

Drive Wedge

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Port

Replicator

Connectors

Port

Replicator

Components

Power

Management

provides multimedia expansion capability with a DVD or CD-ROM Drive and a Diskette Drive or LS120 Drive integrated into one removable component.

Compaq

Presario 1900 Series Portable Computers also have an optional integrated 10/100BaseT Ethernet Port Replicator allowing the user to quickly and easily attach or detach the computer from peripheral devices. It contains a full array of ports, some which are accessible while the system is docked to the Port Replicator.

This full-

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function Intel Celeron and Pentium II - based portable computer provides full desktop functionality.

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Compaq.com - Compaq Presario 1900 Series Maintenance and Service Guide - Models: 1905, 1906, 1910, 1915, 1919, and 1920

 

United States June 27, 2004

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SEARCH

Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Troubleshooting

Preliminary Steps

Clearing the Power-

On Password

Power-On Self Test (POST)

Compaq Diagnostics

Diagnostic Error

Codes

Troubleshooting

Without Diagnostics

Solving Minor

Problems

Contacting Compaq

Support

This section covers troubleshooting information for the Compaq Presario 1900 Series Portable Computers. The basic steps in troubleshooting include:

1.Follow the Preliminary Steps .

2.Run the Power-On Self-Test (POST).

3.Follow the recommended actions described in the diagnostic tables, if you are unable to run POST or if POST displays an error message.

When following the recommended actions in the Sections on POST and Diagnostic Error Codes perform them

in the order listed. Rerun POST after each recommended action until the problem is solved and no error message occurs. Once the problem is solved, do not complete the remaining recommended actions.

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If the problem is intermittent, check the

NOTE: computer several times to verify that the problem is solved.

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

System Unit

Boards

Display

Assembly

Mass Storage

Devices

Miscellaneous

Hardware and

Plastics Kit

Miscellaneous

Hardware and

Plastics Wedge

Kit

Miscellaneous

Parts

Documentation

and Software

This section provides an illustrated parts breakdown and a reference for spare parts for the Presario 1900 Series Portable Computer.

The computer (1) serial number should be provided to Compaq whenever requesting information or ordering spare parts. The serial number is located on

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bottom of unit.

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removal and Replacement Procedures

This section explains the removal and replacement procedures for the computer.

Serial Number

Electrostatic

Discharge

Service

Considerations

Cables and

Connectors

Preparing the

Computer for

Disassembly

Battery Pack

Hard Drive

Keyboard

Memory

Module

Modem

Heatspreader

Processor

Display Panel

Assembly

Report the computer serial number to Compaq when requesting information or ordering spare parts. The serial number is located on bottom of unit.

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Compaq.com - Compaq Presario 1900 Series Maintenance and Service Guide - Models: 1905, 1906, 1910, 1915, 1919, and 1920

Upper CPU

Cover with

Palmrest and

TouchPad

Hard Drive/

Battery

Charger Board

Converter

Board

Low Voltage

Differential

Signal Board

Fan Assembly

System Board

Speaker

Assembly

Disassembling

the Wedge

DVD or CD

Drive

System to

Wedge

Interface

Board

Diskette Drive

Wedge to Port

Replicator

Interface

Board

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Compaq.com - Compaq Presario 1900 Series Maintenance and Service Guide - Models: 1905, 1906, 1910, 1915, 1919, and 1920

 

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting

| Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Specifications

This chapter covers the following specifications of Compaq Presario 1900 Series Portable Computers:

Physical and Environmental

System Interrupts

System DMA

System I/O Addresses

System Memory Catalog

Display

Diskette Drive or LS-120 Drive

Hard Drive

CD ROM or DVD Drive

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Connector Pin Assignments

This appendix provides connector pin assignment tables for Compaq Presario 1900 Series Portable Computers. For more information on connectors, refer to the section on Rear Connectors .

NOTE: The signals in all tables of this appendix are considered active high unless otherwise indicated by an asterisk (*).

 

 

Parallel Connector

 

Pin

Signal

Pin

Signal

1

Strobe*

10

Acknowledge*

2

Data Bit 0

11

Busy

3

Data Bit 1

12

Paper Out

4

Data Bit 2

13

Select

5

Data Bit 3

14

Auto Linefeed*

6

Data Bit 4

15

Error*

7

Data Bit 5

16

Initialize Printer*

8

Data Bit 6

17

Select In*

9

Data Bit 7

18-25

Signal Ground

* = Active low

Serial Connector

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Connector

Pin

Signal

 

1

Carrier Detect

 

2

Receive Data

 

3

Transmit Data

 

4

Data Terminal Ready

 

5

Signal Ground

 

6

Data Set Ready

 

7

Ready to Send

 

8

Clear to Send

 

9

Ring Indicator

 

Keyboard/Mouse Connector

Connector

Pin

Signal

 

1

Data

 

2

Not defined

 

3

Ground

 

4

+5 VDC

 

5

Clock

 

6

Not defined

 

External VGA Monitor Connector

Connector

Pin

Signal

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1

Red Analog

2

Green Analog

3

Blue Analog

4

Not connected

5

Ground

6

Ground Analog

7

Ground Analog

8

Ground Analog

9

Not connected

10

Ground

11

Monitor Detect

12

DDC2B Data

13

Horizontal Sync

14

Vertical Sync

15

DDC2B Clock

 

Universal Serial Bus Connector

Connector

Pin

Signal

 

1 Ground

 

2 D+

3 D-

4 Power

Modem Connector

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Connector

Pin

Signal

1Unused

2Unused

3Tip

4Ring

5Unused

6Unused

This information was not available at time of publication.

Port Replicator Connector

Pin Signal

Pin Signal

Pin Signal

Pin Signal

This information was not available at time of publication.

LAN Connector

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Battery

 

 

 

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Battery Pack Operating Time

This section covers the following information concerning battery pack operating time:

Increasing battery pack operating time

Conditioning a battery pack

Disposing of a used battery pack

Increasing Battery Pack Operating Time

Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the following variables when determining how long a charged battery pack should last:

Power management settings

Hardware configuration

Software applications

Installed options

Display brightness

Hard drive usage

Changes in operating temperature

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Battery

Type and number of installed PC Cards

NOTE: The power consumption requirements for PC Cards vary widely. Some cards drain the battery pack very rapidly.

Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the computer and the energy stored in the battery pack.

Minimizing the Energy Required

To minimize the energy required by the computer, follow these steps:

Set the power conservation levels in the Power Management utility to Maximum .

Customize the timeout value to work more efficiently with the applications. The amount of battery life depends on the values selected.

Maximizing the Energy Stored

To maximize the energy stored in the battery pack, follow these guidelines:

Condition the battery pack at least every 30 days to improve overall battery performance.

Keep a battery pack in the computer when using it with AC power to supply the battery pack with a constant trickle charge.

Store the battery pack in a cool, dry place when not in use.

Conditioning a Battery Pack

CAUTION: To avoid a loss of data, ensure that all data is saved before discharging a battery pack.

To condition a battery pack, complete the following steps:

1.Plug in the AC adapter and allow the battery to charge until the fast charge arrow on the display disappears. Your battery gauge may read 100 percent for a period of time before the arrow disappears. Do not unplug the AC adapter until the arrow disappears.

2.Unplug the AC adapter and allow the battery to drain until the computer reaches hibernation and turns itself off.

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Battery

CAUTION: Do not plug the AC adapter during this process or you will need to restart with step number 1. You may use the computer while the battery is draining.

3.Your battery is re-conditioned.

4.Plug in the AC adapter and begin using the computer. The table below shows battery pack charge times by model.

Battery Charge Time

Computer

On Line

Off Line

Li ion Battery Pack

4.5 hours premature termination

2:50 hr

Disposing of a Used Battery Pack

In the interest of safeguarding our environment. Compaq Computer Corporation recommends that nickel metal hydride (NiMH) and lithium ion (Li ion) battery packs be recycled. Battery packs should be handled in accordance with country, state, province, or local regulations.

CAUTION: Never attempt to open or service a battery pack. Opening a battery pack not only damages the pack and makes it unusable, but also expose potentially harmful battery components.

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Models and Features

Models and

Features

Controls and

Lights

Status Panel

Left Side

Components

Right Side

Components

Bottom of

Unit

Left Side

and Top

Wedge

Components

Right Side

Wedge

Components

Rear

Connectors

Compaq Discovery 1900 Series Portable Computer Models

 

Model

 

1905

Display

12. 1" TFT

Processor

Intel Celeron/266-MHz

 

w/128K Cache

Hard Drive

4.0-GB

Modem

56.0 Kbps PCI Data/Fax

CD Drive

24X CD-ROM

 

Model

 

1910

Display

12.1" TFT or 13. 3" TFT

Processor

Intel Celeron/300-MHz

 

w/128K Cache or

 

PII/300-MHz w/512

 

Cache

Hard Drive

6.4-GB or 4.8-GB

Modem

56.0 Kbps PCI Data/Fax

 

or 56.0 Kbps PCI Data/

 

Fax I

Model 1906

12. 1" TFT

Intel Celeron/266-MHz

w/128K Cache

4.0-GB

56.0 Kbps PCI Data/Fax

24X CD-ROM

Model 1915

12. 1" TFT or 13.3" TFT

Pentium II/266-MHz w/512K or 256K Cache or PII/300-MHz w/512 Cache

4.0-GB

56.0 Kbps PCI Data/Fax or

56.0 Kbps PCI Data/Fax (International)

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Port

 

DVD or CD Drive

24X CD Drive or 4X DVD

DVD or 24X CD Drive

Replicator

 

 

 

 

 

 

 

 

 

 

Connectors

 

 

 

 

 

 

 

 

 

 

 

 

Model

 

Model

 

 

 

 

 

 

 

Port

 

 

 

 

1919

 

1920

Replicator

 

 

 

 

Display

 

 

 

 

13. 3" TFT

13. 3" TFT

Components

 

 

 

 

 

 

 

 

Processor

Intel Celeron/300-MHz

Pentium II/300-MHz

 

Power

 

 

w/128K Cache

w/256K Cache

Management

 

 

 

Hard Drive

6.4-GB

4.0-GB or 6.4-GB

 

 

 

 

 

Modem

K-56.0 Kbps PCI Data/

56.0 Kbps PCI Data/Fax

 

 

 

Fax

or

 

 

 

 

 

56.0 Kbps PCI Data/Fax

 

 

 

 

 

(International)

 

 

DVD Drive

DVD Drive

DVD Drive

 

 

 

 

 

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Compaq 1906, 1919, 1922, 1920, 1910 User Manual

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Controls and Lights

Models and

Features

Controls and

Lights

Status Panel

Left Side

Components

Right Side

Components

Bottom of

Unit

Left Side

and Top

Wedge

Components

Right Side

Wedge

Components

Rear

Connectors

Port

Replicator

Connectors

Port

Replicator

Components

Front of Unit

1.Display 9. TouchPad

2.10. Left Backlight TouchPad Switch Button Button

3.Instant

11. Power

Internet

(On/Off)

Access

Light

Button

 

4.Instant

12. Scroll

Search

(Up/

Button

Down)

 

Button

5.Power 13. (On/Off) Battery Button Charge

Light

6.Instant 14.

E- Display

Commerce Panel

(or Release

Favorite Button

Website)

Button

7. Instant

15. Right

E-Mail

TouchPad

Button

Button

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Compaq.com - Compaq Presario 1900 Series Maintenance and Service Guide - Models: 1905, 1906, 1910, 1915, 1919, and 1920

 

 

 

 

 

Power

 

8.

16.

Management

 

Keyboard

Integrated

 

 

 

Speakers

 

 

 

1.800.AT.COMPAQ

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Compaq.com - Compaq Presario 1900 Series Maintenance and Service Guide - Models: 1905, 1906, 1910, 1915, 1919, and 1920

 

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Maintenance & Service Guide

Presario 1900 Series

Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Status Panel Lights

Models and

Features

Controls and

Lights

Status Panel

Left Side

Components

Right Side

Components

Bottom of

Unit

Left Side

and Top

Wedge

Components

Right Side

Wedge

Components

Rear

Connectors

Status

Panel

Lights

1.AC Adapter Light

2.Num Lock Light

3.Caps Lock Light

4.Scroll Lock Light

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