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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, and 1267

United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Welcome to the Maintenance & Service Guide for the Presario 1255

through 1275 series...

Notice

Preface

Product

Description

Troubleshooting

Illustrated

Parts Catalog

Removal &

Replacement

Procedures

Specifications

Connector Pin

Assignments

Battery Pack

Operations

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This online guide is designed to serve the needs of those whose job it is to

repair Compaq products.

Click to download a ZIP file containing the complete Maintenance & Service Guide for this

product.

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

For content comments or questions, contact http://www.compaq.com/athome/support/msgs/

comments.html.

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

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

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.

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 1200 Series Portable Computers

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

First Edition (June 1999) Compaq Computer Corporation

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

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 1200 Series Portable Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1200 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 1200 Series Portable Computer documentation set

● Introducing Windows 95 Guide

● Service Training Guides

● Compaq Service Advisories and Bulletins

● Compaq QuickFind

● Compaq Service Quick Reference Guide

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United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Product Description

Models and Features

Controls and Lights Left Side

Components Right Side

Components Bottom of Unit Rear Connectors Power

Management for Windows 98

Compaq

Presario Portable Computers...

are a continuation of new generation multimedia portable computers with innovative integrated designs, outstanding audio and video, advanced core features, and attractive styling.

This fullfunction,

AMD-K6

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portable computer allows full desktop functionality.

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

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 1200 Series Portable Computers. The basic steps in troubleshooting include:

1. Follow the Preliminary Steps.

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

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

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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NOTE:

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

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Illustrated Parts Catalog

This section provides a breakdown and identifies the spare parts ordering number associated with each

item for the Compaq Presario 1200 Series Portable Computers.

System Unit

Boards

Display Assembly

Mass Storage Devices

Miscellaneous Cable Kit

Cables

Miscellaneous Hardware &

Plastics Kit

Miscellaneous Parts

Documentation & Software

Compaq Home

Products

Service

Worldwide

Compaq.com

Legal Notices and Privacy Statement

Revised: 25 February 1999

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

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

Disassembly Sequence

Electrostatic Discharge

Service Considerations

Cables and Connectors

Preparing the Computer for Disassembly

Battery Pack Palmrest

Cover with Touch Pad

Heatspreader Keyboard

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Processor Hard Drives CD Drive Battery

Charger Board Modem Display Panel

Assembly Upper CPU

Cover Speaker

Assembly Diskette Drive Fan Assembly System Board Dip Switch

Settings Memory

Module

Report the computer [ ] serial number to Compaq when

requesting information or ordering spare parts.

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United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Specifications

This chapter covers the following specifications of Compaq Presario 1200 Series Portable Computers:

System interrupts

System DMA

System I/O Address

System memory Catalog

Physical & environmental

Display

Memory Expansion

Battery Pack

Diskette Drive

Hard Drive

CD Drive

Physical and Environmental

Computer Specifications

U.S. Metric

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Dimensions

(All models with 12.1" display)

Height

Depth Width

(Model 1275 with 13.0" display)

Height

Depth Width

1.97 in

12.20 in

10.08 in

1.97 in

12.33 in

10.08 in

4.95 cm

31.00 cm

25.60 cm

5.00 cm

31.30 cm

25.60 cm

Weight

Model 1255 Model 1256 Model 1260 Model 1262 Model 1266 Model 1267 Model 1272 Model 1273 Model 1274 Model 1275

6.68 lb

3.34 kg

Stand-Alone (Battery Pack) Power

Requirements

Nominal Operating Maximum Average

Peak Operating

NiMH

W @ 9.6 V W @ 9.6 V W @ 9.6 V

Li-ion

W @ 14.8 V W @ 14.8 V W @ 14.8 V

AC Power Requirements

Operating Voltage Operating Current

Operating Frequency

Maximum Transient

100-240 V

0.8/0.4 A RMS 47-63 Hz

Meets IEC 801-4 and IEC801-5

1kV for 50 ns

Operating Temperature

50° to 95 °F 10° to 35 °C

Non-operating Temperature

-4° to 140 °F -20° to 60 °C

Operating Relative Humidity (non-

condensing)

10 to 90% 35°C to 90%

Non-operating Relative Humidity

(tw = 38.7°C max)

5 to 95% 60°C to 95%

Operating Altitude

0 to 10,000 ft 0 to 3.15 km

Non-operating Altitude

0 to 30,000 ft 0 to 9.14 km

Operating Shock

10 G, 11 ms, half sine

Non operating Shock

240 G, 2 ms, half sine

Operating Vibration

0.5 G

Non-operating Vibration

1.5 G

NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Presario 1200 Series Portable Computers operate well within this range of temperatures.

Return to the Top of this page.

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Compaq Home

Products

Service

Worldwide

Compaq.com

Legal Notices and Privacy Statement

Revised: 25 February 1999

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Compaq.com

United States

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

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 1200 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 (*).

Click on a link:

● Parallel Connector

● Serial Connector

● Keyboard/Mouse

● External VGA Monitor

● Universal Serial Bus

● Modem

Parallel Connector

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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

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Serial Connector

Connector Pin Signal

Carrier Detect

Receive Data

Transmit Data

Data Terminal Ready

Signal Ground

Data Set Ready

Ready to Send

Clear to Send

Ring Indicator

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Return to the top.

Keyboard/Mouse

Connector Pin Signal

Data 1

Data 2

Ground

+5 V

Clock 1

Clock 2

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External VGA Monitor

Connector Pin Signal

Red Analog

Green Analog

Blue Analog

Not connected

Ground

Ground Analog

Not connected

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Ground

Monitor Detect

DDC2B Data

Horizontal Sync

Vertical Sync

DDC2B Clock

Return to the top.

Universal Serial Bus

Connector Pin Signal

+5V Data Data + Ground

Return to the top.

Modem

Connector Pin Signal

Unused

Tip

Ring

Unused

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United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Battery Pack Operating Time

This appendix 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

● 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:

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

2. 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

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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.

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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 LED light on the display stops blinking. Your battery gauge may read 100 percent for a period of time before LED light on the display stops blinking. 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. Do not plug in the AC adapter during this process or you will need to restart with Step No. 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 the approximate battery pack charge times.

Approximate Battery Charge Time

Computer On Line Off Line

NiMH Battery Pack 4.0 hours 2:00 hrs

Li ion Battery Pack 4.5 hours 2:50 hrs

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.

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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 exposes potentially harmful battery components.

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COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Models & Features

Models and Features

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Power Management

Compaq Presario 1200 Series Portable

Computer Models

Model 1255 Model 1256

Display

12. 1" HPA 12.1" HPA

Processor

AMD-K6 333-MHz MMX AMD-K6 333-MHz MMX

Hard Drive

3.2-GB (or) 4.0-GB 4.3-GB

CD Drive

24× MAX 24× MAX

Modem

K-56.0 (or) M++56.0 Kbps Data/Fax with ITU V.90

M++56.0 Kbps Data/Fax with ITU V.90

Battery

ES NiMH (or) sLi ion ES NiMH

System Memory

32 MB 32 MB

Model 1260 Model 1262

Display

12. 1" TFT 12. 1" TFT

Processor

AMD-K6 333-MHz MMX AMD-K6 333-MHz MMX

Hard Drive

4.0-GB (or) 6.4-GB 4.0-GB

CD Drive

24× MAX 24× MAX

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Modem

K-56.0 (or) M++56.0 Kbps Data/Fax with ITU V.90

K-56.0 Kbps Data/Fax with ITU V.90

Battery

sLi ion ES NiMH

System Memory

32 MB 32 MB

Model 1266 Model 1267

Display

12. 1" TFT 12. 1" TFT

Processor

AMD-K6 333-MHz MMX AMD-K6 333-MHz MMX

Hard Drive

4.0-GB (or) 6.4-GB 4.0-GB

CD Drive

24× MAX 24× MAX

Modem

K-56.0 (or) M++56.0 Kbps Data/Fax with ITU V.90

K-56.0 Kbps Data/Fax with ITU V.90

Battery

sLi ion ES NiMH

System Memory

32 MB 32 MB

Model 1272 Model 1273

Display

12. 1" HPA 12. 1" HPA

Processor

AMD-K6II 333-MHz MMX AMD-K6II 333-MHz MMX

Hard Drive

4.3-GB 6.4-GB

CD Drive

24× MAX 24× MAX

Modem

K-56.0 Khan K-56.0 Khan

Battery

ES NiMH ES NiMH

System Memory

32 MB 32 MB

Model 1274 Model 1275

Display

12. 1" HPA 13.0" HPA

Processor

AMD-K6II 333-MHz MMX AMD-K6II 333-MHz MMX

Hard Drive

4.3-GB 4.3-GB

CD Drive

24× MAX 24× MAX

Modem

K-56.0 Khan K-56.0 Khan

Battery

ES NiMH sLi ion

System Memory

64 MB 32 MB (or) 64 MB

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

1.800.AT.COMPAQ

privacy and legal statement

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, and 1274

United States June 28, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Controls and Lights

Models and Features

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Power Management for Windows 98

Front Panel Components

1. Display

2. Power Button

3. Keyboard

4. TouchPad

5. Speakers & Ports

6. Palmrest

7. (L) TouchPad Button

8. (R) TouchPad Button

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