Service Manuals, User Guides, Schematic Diagrams or docs for : COMPAQ Note book 1800t-1825
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Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| 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
Internet
Zone
Buttons and
Lights
Front Bezel
Components
Left Side
Components
Right Side
Components
Bottom of
Unit
Back
Connectors
Port
Replicator
Components Welcome to the Presario 1800 Series Maintenance and Service Guide. This
online guide is designed to serve the needs of those whose job it is to repair
Port Compaq products. The Notice contains the copyright and trademark information.
Replicator The Preface shows symbol conventions, Technician Notes and Serial Number
Connectors locations on the unit.
Power
Management This MSG will be periodically maintained and updated online as needed. For
for Windows content comments or questions, contact Tech Support..
98
To report a technical problem, contact your Regional Support Center or IM Help
Center.
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| 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.
1999 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Presario 1800 Series 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 1800 Series Portable Computer
First Edition (August 1999)
Compaq Computer Corporation
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| 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 1800 Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1800
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.
Text set off in this manner presents commentary, sidelights, or interesting points of
NOTE:
information.
Technician Notes
WARNING: Only authorized technicians trained by Compaq should repair this equipment. All
troubleshooting and repair procedures are detailed to allow only subassembly/module level
repair. Because of the complexity of the individual boards and subassemblies, 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:
q Compaq Presario 1800 Series Portable Computer documentation set
q Introducing Windows 98 Guide
q Service Training Guides
q Compaq Service Advisories and Bulletins
q Compaq QuickFind
q Compaq Service Quick Reference Guide
Top of Page
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures |
Specifications
Pin Assignments | Battery Pack Operations
Product Description
Models and Compaq
Presario
Features
1800 Series
Controls and Portable
Lights Computers
are a new
Internet generation
Zone of
Buttons and multimedia
Lights portable
computers
Front Bezel with a thin
Components and light-
Left Side weight
design,
Components
outstanding
Right Side audio and
Components video,
advanced
Bottom of core
Unit features,
and
Back
attractive
Connectors styling.
Port
Replicator The 1800T
Components Series
allows
Port configure-to-
Replicator order (CTO)
Connectors accessibility,
providing a
Power
range of
Management outstanding
for Windows and
98 innovative
features and
components.
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Troubleshooting
Preliminary
Steps This section covers troubleshooting information for the Compaq Presario 1800 Series
Clearing the Portable Computers. The basic steps in troubleshooting include:
Power-On
Password 1. Follow the Preliminary Steps.
Power-On Self
2. Run the Power-On Self-Test (POST).
Test (POST)
Compaq 3. Follow the recommended actions described in the diagnostic tables if you
Diagnostics are unable to run POST or if POST displays an error message.
Diagnostic Error
Codes When following the recommended actions in the Sections on POST and
Diagnostic Error Codes perform them in the order listed. Rerun POST after
Troubleshooting
each recommended action until the problem is solved and no error message
Without
occurs. Once the problem is solved, do not complete the remaining
Diagnostics recommended actions.
Solving Minor
Problems If the problem is intermittent, check the computer several times to
NOTE:
verify that the problem is solved.
Contacting
Compaq
Support
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| Home Page | Notice | Preface | Product Description |
Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures |
Specifications
Pin Assignments | Battery Pack Operations
Illustrated Parts Catalog
System Unit This section provides a breakdown of spare parts and
Boards
identifies the spare part ordering number associated with
each item for Compaq Presario 1800 Series Portable
Display
Computers.
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| 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 Location
Removal
Sequence
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest
Cover with
TouchPad
Keyboard
Status Panel Report the computer serial number to Compaq when requesting information or
ordering spare parts. The serial number is located on the underside of the
Internet
computer.
Button Board
Heatspreader
Network
Interface Card
Modem
Hard Drive
DisqPlay
Module
Processor
DVD or
CD Drive
Display Panel
Assembly
Upper CPU
Cover
Fan Assembly
Diskette Drive
Battery
Charger Board
Speaker
Assembly
System Board
Memory
Module
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Specifications
This section covers the following specifications of Compaq Presario 1800 Series Portable
Computers:
q Physical and Environmental
q System Interrupts
q System DMA
q System I/O Address
q System Memory Catalog
q Display
q Memory Expansion
q Diskette or LS120 Drive
q Hard Drive
q DVD or CD drive
q Battery Pack
Physical and Environmental
Computer Specifications
U.S. Metric
Dimensions
Height 1.65 in 4.20 cm
Depth 13.00 in 33.00 cm
Width 10.99 in 27.90 cm
Weight 7.9 lbs 3.58 kg
Stand-Alone (Battery Pack) Power
Requirements Li-ion 3.2 mAh
Nominal Operating W @ 14.8 V
Maximum Average W @ 14.8 V
Peak Operating W @ 14.8 V
AC Power Requirements
Operating Voltage 100-240 V
Operating Current 0.8/0.4 A RMS
Operating Frequency 47-63 Hz
Maximum Transient Meets IEC 801-4 and IEC801-5
1kV for 50 ns
Temperature
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