Compaq PRESARIO 1272, PRESARIO 1260, PRESARIO 1266, PRESARIO 1267, PRESARIO 1256 User Manual

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Before You Begin

Notice
Preface
Product

Description
Troubleshooting
Illustrated Parts

Index

Catalog
Removal &

Replacement
Procedures

Specifications
Connector Pin

Assignments
Battery Pack

Operations

Presario 1200 Series

This online guide is designed to serve the needs of those whose
job it is to repair Compaq products.

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

For content comments or questions, contact

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

Compaq.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

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 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

First Edition (June 1999)
Compaq Computer Corporation

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

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.

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:

● 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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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Product Description

Models and Features
Controls and Lights
Left Side

Components
Right Side

Components
Bottom of Unit
Rear Connectors
Power Management

for Windows 98

Index

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
portable
computer
allows full
desktop
functionality.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Models & Features

Models and
Features

Controls and
Lights

Left Side
Components

Right Side
Components

Bottom of
Unit

Rear
Connectors

Power
Management

Display
Processor

Hard Drive

Compaq Presario 1200 Series

Portable Computer

Models

Model 1255 Model 1256

12. 1" HPA 12.1" HPA
AMD-K6 333-MHz

MMX

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

Index

AMD-K6 333-MHz
MMX

CD Drive
Modem

Battery
System

Memory

Display
Processor

Hard Drive
CD Drive
Modem

24× MAX 24× MAX
K-56.0 (or) M++56.0

Kbps Data/Fax with
ITU V.90

M++56.0 Kbps
Data/Fax with ITU

V.90
ES NiMH (or) sLi ion ES NiMH
32 MB 32 MB

Model 1260 Model 1262

12. 1" TFT 12. 1" TFT
AMD-K6 333-MHz

MMX

AMD-K6 333-MHz

MMX

4.0-GB (or) 6.4-GB 4.0-GB
24× MAX 24× MAX
K-56.0 (or) M++56.0

K-56.0 Kbps Data/Fax

Battery
System

Memory

Display
Processor

Hard Drive
CD Drive
Modem

Kbps Data/Fax with

with ITU V.90
ITU V.90

sLi ion ES NiMH
32 MB 32 MB

Model 1266 Model 1267

12. 1" TFT 12. 1" TFT
AMD-K6 333-MHz

MMX

AMD-K6 333-MHz

MMX

4.0-GB (or) 6.4-GB 4.0-GB
24× MAX 24× MAX
K-56.0 (or) M++56.0

Kbps Data/Fax with

K-56.0 Kbps Data/Fax

with ITU V.90
ITU V.90

Battery
System

Memory

Display
Processor

Hard Drive
CD Drive
Modem

Battery
System

Memory

sLi ion ES NiMH
32 MB 32 MB

Model 1272 Model 1273

12. 1" HPA 12. 1" HPA
AMD-K6II 333-MHz

MMX

AMD-K6II 333-MHz

MMX

4.3-GB 6.4-GB
24× MAX 24× MAX
K-56.0 Khan K-56.0 Khan

ES NiMH ES NiMH
32 MB 32 MB

Display
Processor

Hard Drive
CD Drive
Modem

Battery
System

Memory

Model 1274 Model 1275

12. 1" HPA 13.0" HPA
AMD-K6II 333-MHz

MMX

AMD-K6II 333-MHz

MMX

4.3-GB 4.3-GB
24× MAX 24× MAX
K-56.0 Khan K-56.0 Khan

ES NiMH sLi ion
64 MB 32 MB (or) 64 MB

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Controls and Lights

Models and
Features

Controls and
Lights

Left Side
Components

Right Side
Components

Bottom of
Unit

Rear
Connectors

Index

Front Panel
Components

1. Display

2. Power
Button

3.
Keyboard

Power
Management
for Windows
98

4.TouchPad

5.
Speakers &
Ports

6. Palmrest

7. (L)
TouchPad
Button

8. (R)
TouchPad
Button

9. Instant
Internet
Access
Button

10. Instant
Search
Button

11. Scroll
up/down
Button

12. Instant
E­Commerce
Button
(or Retail
Center)

NOTE:

Depending
on the
model, the
icon for this
button may
be either a

check mar

k
or a
shopping
cart.

13. Instant
E-mail

14. Power
Light

15. Battery
Charge
Light

16. AC
Adapter
Light

17.
Headphone
Jack

18. Volume
Down
Button

19. Volume
Up Button

20.
Microphone
Jack

21.
Number
Lock Light

22. Cap
Lock Light

23. Scroll
Lock Light

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Left Side Components

Models and
Features

Controls and
Lights

Left Side
Components

Right Side
Components

Bottom of
Unit

Rear
Connectors

Power
Management
for Windows
98

Index

1. PC
Card
Eject
Lever

2. PC
Card
Slot

3.
Diskette
Drive
Slot

4.
Diskette
Eject
Button

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Right Side Components

Models and
Features

Controls and
Lights

Left Side
Components

Right Side
Components

Bottom of
Unit

Rear
Connectors

Index

1. Battery
Compartment.

2. CD Drive.

3. CD Drive
Eject Button.

Power
Management
for Windows
98

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Bottom of Unit

Models and
Features

Controls and
Lights

Left Side
Components

Right Side
Components

Bottom of
Unit

Rear
Connectors

Index

1.
Upgradeable
memory
compartment.

2. Rubber
feet.

Power
Management
for Windows
98

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Rear Connectors

Models and
Features

Controls and
Lights

Left Side
Components

Right Side
Components

Bottom of
Unit

Rear
Connectors

Power
Management
for Windows
98

Index

1. AC Adapter.

2. Parallel
Printer Port.

3. Serial Port.

4. Fan Exhaust.

5. External
Monitor Port.

6. USB.

7.
Keyboard/Mouse
Port.

8. Modem Jack.

9. Security Slot.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Power Management for Windows 98

The following power management features are available for
conserving AC power and extending battery operating time:

Power Management

Settings

Sleep

Hibernation

Battery Operating

Time

Rebooting After

Lockup

Servicing Your

Computer

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Power Management for Windows 98

Power Management Settings

Depending on your patterns of computer use, you can set different levels of
power management. These different power management levels can be
activated based on the amount of time passed since the last system activity.
System activity examples include keyboard or mouse movement, CD or DVD
playback (while under program control that monitors Sleep), and modem use.

You can select different conditions or power schemes through Power
Management.The optional settings are Home/Office Desk, Portable/
Laptop, and Always On. From the default settings, you can change the
following settings:

● the System goes to Sleep (Standby) mode

● the screen times out and goes blank

● the hard drive spins down

Each of these system components goes to sleep after the selected or default
periods of inactivity.
(The setting for hard drive must be less than, or equal to, the setting for
System.)

IMPORTANT:

System Standby to Never.

If you're on a network, it's recommended that you set

There are five categories of power management settings under the Control Panel.

The default settings for each feature are listed in the following tables:

Power Management Properties

Tab: Power Schemes: Plugged in

Always on System

Never

Standby:

Turn OFF Monitor

3 hours

Running on Batteries

After 15 minutes

Never

Turn OFF Hard Drive

After 15 minutes

After 10 minutes

Power Management Properties

Tab: ALARMS::

Low Battery Alarm: 10%

Critical Battery Alarm 0%

Alarm Actions: X Display Message

Notification:

Text Action: No Action

Power Management Properties

Tab: POWER METER: Default

Tab: ADVANCED Default

(show power meter on taskbar)

Display Properties

Tab: Monitor: Laptop Display (800 x 600)

Return to Power Management for Windows 98 list.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Power Management for Windows 98

Sleep

You can select Sleep mode instead of turning off the computer when you have finished using it.
This allows the computer to wake up faster than turning it off and saves power over the active
(On) mode. Compaq Presario Notebook computers have two levels of sleep - Hibernation and
Sleep.

Hibernation - pushing the power button once causes your computer to perform a save to disk
followed by a
shut down of the computer into Off mode.

Sleep - is a low-power mode, also referred to as Standby mode. While in Sleep mode, your
computer maintains system information and open files. Unsaved information is lost if you turn off
your system before system wake-up, or if you lose power while using the AC adapter.

CAUTION: While in Sleep mode, your computer maintains system information and open
files. Unsaved information is lost if you turn off your system before system
wake-up, or if you lose power while using the AC adapter

.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Power Management for Windows 98

Hibernation Mode

Hibernation helps conserve battery life and protect your data. Hibernation can
be a routine power saving event, or can be the result of a low battery
condition. As it enters Hibernation, your computer displays a progress screen,
as it automatically saves the machine state before it shuts down and turns
itself off. Your computer automatically goes into Hibernation when the
battery has little power left, or when the system (operating on battery power)
has been in Sleep mode for more than an hour. You can also manually initiate
Hibernation by pressing the power button once while the system is active. To
restore the computer's previous state, simply press the power button once
again. While waking up, the computer displays a progress screen.

The following table shows the conditions and indicators for getting in and out
of the various power management modes - Sleep, Hibernation, and Off.

Mode To Initiate To End Indicators

Sleep

Manual keys
combination

Press any key Flashing green

Power LED

- Fn+F4

Time Out Default ­15 minutes if on Battery
power (system will not
time out to sleep)

Hibernate Manual - Press Power

Button once

Press Power
Button once

No Power
LED, blank
screen

Time Out Default ­If low battery or after 1
hour of sleep (system will
not Hibernate if on AC
power)

Off Perform normal Windows

shutdown via the start
button, or press and hold
down the power button
for 4 seconds

Return to Power Management for Windows 98 list.

Press Power
Button once

No Power
LED, blank
screen

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Power Management for Windows 98

Battery Operating Time

Battery operating time is affected by variables, such as the following:

● Power conservation

settings

● Hardware

configuration

● Software

applications

For more information on increasing battery pack operating time,
conditioning the battery pack, and disposing of a used battery pack,
refer to Battery Pack Operating Time.

Return to Power Management for Windows 98 list.

● Installed

options

● Display

brightness

● Hard drive

usage

● Power button

● Changes in operating

temperature

● Type and number of

installed PC Cards

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Power Management for Windows 98

Rebooting After a Lockup

Occasionally you may encounter a frozen keyboard or a locked screen. To
reboot your computer (as if from a cold start), press and hold down the Power
Button for at least four seconds, which will cause a manual shutdown. Then,
restart the computer with a single press of the Power Button. If it still does
not recover, press the
Power Button and hold it for four seconds to power off the computer. Then,
remove the battery or unplug the AC power for at least 30 seconds. Reinsert
the battery or reconnect AC power and press the Power Button once to
reboot.

Return to Power Management for Windows 98 list.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Power Management for Windows 98

Servicing Your Computer - Full Off Mode

If you need to install or replace components in your system, you must turn
the computer off completely.
Place the computer into Off mode, unplug it from the outlet, and remove the

battery

(see battery section for instruction on removing battery).

Return to Power Management for Windows 98 list.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Troubleshooting

Preliminary Steps
Clearing the Power-On

Password
Power-On Self Test

(POST)
Compaq Diagnostics
Diagnostic Error Codes
Troubleshooting

Without Diagnostics
Solving Minor

Problems

This section covers troubleshooting information
for the Compaq Presario 1200 Series Portable
Computers. The basic steps in troubleshooting
include:

1. Follow the

Steps.

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

3. If you are unable to run

Index

Preliminary

Contacting Compaq
Support

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.

If the problem is
intermittent, check the

NOTE:

computer several times to
verify that the problem is
solved.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Preliminary Steps

Before running POST, complete the following preliminary steps:

1. If a power-on password has been established, type the password and press the Enter key. If
the password is not known,

2. Run Computer Checkup.

3. Turn off the computer and its external devices.

4. Disconnect any external devices that you do not want to test. Do not disconnect the printer if
you want to test it or use it to log error messages.

clear the password.

If the problem only occurs when an external device is connected
to the computer, the problem may be related to the external

IMPORTANT:

device or its cable. Verify this by running POST with and without
the external device connected.

5. Install loopback plugs in the serial and parallel connectors if you would like to test these ports.

6. Ensure that the hard drive is installed in the computer.

7. Ensure that the battery pack is inserted in the computer and the computer is connected to an
external
AC power source.

When these preliminary steps are completed, you are ready to run

POST.

Return to Troubleshooting index page.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Power-On Self Test (POST)

Running POST

To run POST, complete the following steps:

● Turn off the computer; then, turn on the computer.

● If POST does not detect any errors, the computer will not beep. This indicates successful

completion of POST test. POST has run successfully and boots from the hard drive (or from a
bootable diskette if one is installed in the diskette drive).

● If POST detects errors, the errors are indicated by screen and/or audible messages.

Refer to "Power-On Self-Test (POST) Codes" in the tables for a list of POST codes and their relevant
descriptions.

If the system is not functioning well enough to run POST, or if the display is

NOTE:

not functioning well enough to show POST error messages, refer to the
Troubleshooting tables.

Power-On Self-Test Messages

102-System Board Failure

Probable Cause Recommended Action

DMA, timers, etc. Replace the system board.

162-System Options Not Set

Probable Cause Recommended Action

Configuration incorrect Run Computer Setup.

CMOS reflects that an invalid

Run Computer Setup.

configuration has been set.

RAM failure 1. Replace the memory modules.

2. Replace the system board.

Memory test data error 1. Replace the memory modules.

2. Replace the system board.

XX000YZZ RAM failure Replace the system board.

XX000YZZ 201-Memory Error

Probable Cause Recommended Action

RAM failure 1. Replace the memory modules.

2. Replace the system board.

Memory test data error 1. Replace the memory modules.

2. Replace the system board.

XXOOOYZZ Ram failure Replace the system board.

301-Keyboard Error

Probable Cause Recommended Action

Keyboard failure 1. Ensure that keys are not depressed

during POST.

2. Reconnect the keyboard with the
computer off.

3. Replace the keyboard.

304-Keyboard or System Unit Error

Probable Cause Recommended Action

Keyboard or system board error 1. Replace the keyboard.

2. Replace the TouchPad or mouse.

3. Replace the system board.

601-Diskette Controller Error

Probable Cause Recommended Action

Mismatch in drive type or failure in the
diskette controller

Run Computer Checkup (TEST).

1.

2. Check and/or replace cables.

3. Replace the system board.

605-Diskette Drive Error

Probable Cause Recommended Action

Mismatch in drive type Run Computer Setup.

1780-Primary Hard Drive 0 Failure

Probable Cause Recommended Action

Disk 0 failed to respond 1.

Hard drive format error 1. Run Computer Checkup (TEST).

Run Computer Checkup (TEST).

2. Replace the hard drive.

2. Replace the hard drive.

1782-Hard Drive Controller

Probable Cause Recommended Action

Hard drive controller failure 1. Run Computer Setup.

2. Replace the hard drive.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Clearing the Power-on Password

Index

Clearing the power-on
password requires
removing all Setup
attributes that are
programmed in the
CMOS. The RTC battery

is located on the

system board.

If the password is not
known, clear it by
performing the
following steps:

1. Turn off the
computer.

2. Disconnect the power
cord.

3. Remove the

battery

pack.

4. Remove the Palmrest

Cover with Touch Pad.

5. Move the keyboard
to allow access to the

heatspreader.

6. Remove the

heatspreader.

7. Remove the modem.

8. Remove the RTC
battery for 30 seconds
and
replace it.

9. Reassemble the
computer by reversing
the previous steps.

10. Turn on the
computer to verify that
the power-on password
has been cleared. If it
has not been cleared,
repeat Steps 1 through

10.

Return to

preliminary

steps page.

or

Return to Troubleshooting
index page.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Compaq Diagnostics

Compaq Diagnostics is installed on the hard drive of the computer. Run the
Diagnostics utilities when you want to view or test system information and if
you have installed or connected devices. If you run Compaq Diagnostics from
a diskette, ensure that it is version 10.11 or later.

The Diagnostics menu includes the following utilities:

■ Perform Computer Checkup (TEST)

■ View System Information (INSPECT)

■ Prepare Computer for a Compaq Service Call (RemotePaq)

If you have a problem you cannot solve, run the Diagnostics utilities before
you call for support. Run Computer Checkup and save the device list to a file
and to print, or save the error log. Run the View System Information
(INSPECT) utility and print or save that information. Have the files or the
printed information available when you call for support.

Perform Computer Checkup (TEST)

Computer Checkup (TEST) determines whether the various computer
components and devices are recognized by the system and are functioning
properly. You can display, print, or save the information generated by
Computer Checkup.

Follow these steps to run Computer Checkup:

1. Plug the computer into an external power source. (A low battery condition
could interrupt the program.)

2. Turn on the external devices that you want to test. Connect the printer if
you want to print a log of error messages.

3. Insert the Compaq Diagnostics diskette in drive A.

4. Turn on or restart the computer. The computer starts from drive A, and the
Diagnostics Welcome screen appears.

5. Press Enter to continue. The Diagnostics menu appears.

6. Select Computer Checkup from the Diagnostics menu. A Test Option
menu appears.

7. Select View the Device List from the Test Option menu. A list of the
installed Compaq devices appears.

8. If the list of installed devices is correct, select OK. The Test Option menu
appears.

If the list is incorrect, ensure that any new devices are installed

NOTE:

properly.

9. Select one of the following from the Test Option menu:

■ Quick Check Diagnostics. Runs a quick, general test on each device with

a minimal number of prompts. If errors occur, they display when the
testing is complete. You cannot print or save the error messages.

■ Automatic Diagnostics. Runs unattended, maximum testing of each

device with minimal prompts. You can choose how many times to run
the tests, to stop on errors, or to print or save a log of errors.

■ Prompted Diagnostics. Allows maximum control over testing the devices.

You can choose attended or unattended testing, decide to stop on
errors, or choose to print or save a log of errors.

10. Follow the instructions on the screen as the devices are tested. When
testing is complete, the Test Option menu appears.

11. Exit the Test Option menu.

12. Exit the Diagnostics menu.

Return to

top of this page

View System Information (INSPECT)

The View System Information (INSPECT) utility provides information about
the computer and installed or connected devices. You can display, print, or
save the information.

Follow these steps to run View System Information (INSPECT) from the
Compaq Diagnostics diskette:

1. Turn on the external devices that you want to test. Connect the printer if
you want to print the information.

2. Insert the Compaq Diagnostics diskette in drive A.

3. Turn on or restart the computer. The computer starts from drive A, and the
Diagnostics Welcome screen appears.

4. Press Enter to continue. The Diagnostics menu appears.

5. Select View System Information (INSPECT) from the Diagnostics
menu.

6. Select the item you want to view from the following list:

System Memory
ROM Audio
Keyboard Operating system
System ports System files
System storage Windows files
Graphics

7. Follow the instructions on the screen to cycle through the screens, to
return to the list and choose another item, or to print the information.

Return to

top of this page

or to Preliminary steps page.

or to the Troubleshooting index page.

compaq.gif (932 bytes)

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Diagnostic Error Codes

Diagnostic error codes occur if the system recognizes a problem while running the Compaq
Diagnostic program. These error codes help identify possibly defective subassemblies.

The following tables list error codes, a description of the error condition, and the action required
to resolve the error condition.

IMPORTANT:

For the removal and replacement of a particular subassembly, see

Procedures.

Retest the system after completing each step. If the problem has been resolved,
do not proceed with the remaining steps.

Removal and Replacement

Select error codes by number or type:

101 through 114
200 through 215 Processor Test
300 through 304 Memory Test
401 through 403 Keyboard Test
600 through 699 Parallel Printer Test

1101 Diskette Drive Test

1701 through 1736 Serial Test

501 through 516 Hard Drive Test

2402 through 2456 Video Test
2458 through 2480 Audio Test

3206 Touch Pad Pointing Device Test
8601 through 8602 CD Test
3301 through 6623

Processor Test Error Codes

Error
Code Description Recommended Action

101-xx CPU test failed Replace the processor and retest.
102-xx Coprocessor or Weitek Error 1. Run the Configuration and Diagnostics

Utilities.

2. Replace the processor board and retest.
103-xx DMA page registers test failed Replace the system board and retest.
104-xx Interrupt controller master test failed
105-xx Port 61 error
106-xx Keyboard controller self-test failed
107-xx CMOS RAM test failed
108-xx CMOS interrupt test failed
109-xx CMOS clock test failed
110-xx Programmable timer load data test failed
113-xx Protected mode test failed

114-01 Speaker test failed 1. Check system configuration.

2. Verify cable connections to speaker.

3. Replace the system board and retest.

Memory Test Error Codes

200-xx Memory machine ID test failed 1. Flash the system ROM and retest.
202-xx Memory system ROM checksum failed

203-xx Write/Read test failed 1. Remove the memory module and retest.
204-xx Address test failed
211-xx Random pattern test failed
214-xx Noise test failed

2. Replace the system board and retest.

2. Install a new memory module and

retest.

215-xx Random address test failed

Return to the top

Keyboard Test Error Codes

300-xx Failed ID Test 1. Check the keyboard connection. If

disconnected, turn off the computer and

301-xx Failed Selftest/Interface Test
302-xx Failed Individual Key Test
304-xx Failed Keyboard Repeat Test

Parallel Printer Test Error Codes

401-xx Printer failed or not connected 1. Connect the printer.

connect the keyboard.

2. Replace the keyboard and retest.

3. Replace the system board and retest.

2. Check power to the printer.
402-xx Failed Port Test

403-xx Printer pattern test failed

600-xx
601-xx

602-xx
603-xx

Diskette ID drive types test
failed

Diskette format failed
Diskette read test failed
Diskette write, read, compare test failed

3. Install the loop-back connector and

retest.

4. Check port and IRQ configuration.

5. Replace the system board and retest.

Return to the top.

Diskette Drive Test

1. Replace the diskette media and retest.

2. Check and/or replace the diskette power

and signal cables and retest.

3. Replace the diskette drive and retest.
604-xx

605-xx
606-xx
609-xx
610-xx
697-xx
698-xx

699-xx

Diskette random read test failed
Diskette ID media failed
Diskette speed test failed
Diskette reset controller test failed
Diskette change line test failed
Diskette type error
Diskette drive speed not within limits

Diskette drive/media ID error 1. Replace media.

4. Replace the system board and retest.

2. Run the Configuration and Diagnostics

Utilities.

Return to the top.

Serial Test Error Codes

1101-

xx

1701-xxHard drive format test failed 1. Run the Configuration and Diagnostics

1702-xxHard drive read test failed

1703-xxHard drive write/read/compare test failed

1704-xxHard drive random seek test failed

1705-xxHard drive controller test failed

1706-xxHard drive ready test failed

1707-xxHard drive recalibration test failed

Serial port test failed 1. Check port configuration.

2. Replace the system board and retest.

Hard Drive Test Error Codes

Utilities and verify drive type.

2. Verify that all secondary drives have

secondary drive capability.

3. Replace the hard drive and retest.

4. Replace the system board and retest.

1708-xxHard drive format bad track test failed

1709-xxHard drive reset controller test failed

1710-xxHard drive park head test failed

1715-xxHard drive head select test failed

1716-xxHard drive conditional format test failed

1717-xxHard drive ECC* test failed

1719-xxHard drive power mode test failed

1724-xxNetwork preparation test failed

1736-xxDrive monitoring test failed

* ECC = Error Correction Code

Return to the top.

Video Test Error Codes

501-xx Video controller test failed The following apply to error codes 501-xx
502-xx Video memory test failed
503-xx Video attribute test failed
504-xx Video character set test failed

505-xx

506-xx
507-xx Video 40 × 25 mode test failed
508-xx

Video 80 × 25 mode 9 × 14 character cell
test failed

Video 80 × 25 mode 8 × 8 character cell
test failed

Video 320 × 200 mode color set 0 test
failed

through 516-xx:

1. Disconnect external monitor and test

with internal LCD display.

2. Replace the display assembly and retest.

3. Replace the system board and retest.

509-xx
510-xx Video 640 × 200 mode test failed

511-xx Video screen memory page test failed
512-xx Video gray scale test failed
514-xx Video white screen test failed
516-xx Video noise pattern test failed

2402-xxVideo memory test failed The following steps apply to error codes

2403-xxVideo attribute test failed

2404-xxVideo character set test failed

2405-xxVideo 80 × 25 mode 9 × 14 character cell

2406-xxVideo 80 × 25 mode 8 × 8 character cell

Video 320 × 200 mode color set 1 test
failed

2402-xx through 2456-xx:

1. Run the Configuration and Diagnostics

Utilities.

2. Replace the display assembly and retest.

test failed

3. Replace the system board and retest.

test failed

2408-xxVideo 320 × 200 mode color set 0 test

failed

2409-xxVideo 320 × 200 mode color set 1 test

failed

2410-xxVideo 640 × 200 mode test failed

2411-xxVideo screen memory page test failed

2412-xxVideo gray scale test failed

2414-xxVideo white screen test failed

2416-xxVideo noise pattern test failed

2418-xxECG/VGC memory test failed

2419-xxECG/VGC ROM checksum test failed 1. Run the Configuration and Diagnostics

Utilities.

2421-xxECG/VGC 640 × 200 graphics mode test

failed

2422-xxECG/VGC 640 × 350 16 color set test

failed

2423-xxECG/VGC 640 × 350 64 color set test

failed

2424-xxECG/VGC monochrome text mode test

failed

2425-xxECG/VGC monochrome graphics mode test

failed

2431-xx640 × 480 graphics test failure

2432-xx320 × 200 graphics (256 color mode) test

failure

2448-xxAdvanced VGA Controller test failed

2451-xx132-column Advanced VGA test failed

2. Disconnect external monitor and test

with internal LCD display.

3. Replace the display assembly and retest.

4. Replace the system board and retest.

2456-xxAdvanced VGA 256 Color

test failed

2458-xxAdvanced VGA BitBLT test The following step applies to error codes

2458-xx through 2480-xx:

2468-xxAdvanced VGA DAC test

Replace the system board and retest.

2477-xxAdvanced VGA data path test

2478-xxAdvanced VGA BitBLT test

2480-xxAdvanced VGA LineDraw test

Return to the top.

Audio Test Error Codes

3206-xxAudio System Internal Error Replace the system board and retest.

TouchPad/Pointing Device Interface Test Error Codes

8601-xxMouse test failed 1. Replace the TouchPad and retest.

8602-xxInterface test failed

CD Drive Test Error Codes

3301-xxCD drive read test failed 1. Replace the CD and retest.

3305-xxCD drive seek test failed

6600-xxID test failed

6605-xxRead test failed

2. Replace the system board and retest.

2. Verify that the speakers are connected.

3. Verify that drivers are loaded and

properly installed.

4. Replace the CD drive and retest.

6608-xxController test failed

6623-xxRandom read test failed

or return to the Troubleshooting index page.

5. Replace the system board and retest.

Return to the top.

compaq.gif (932 bytes)

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Troubleshooting Without Diagnostics

This section provides information about how to identify and correct some common hardware, memory, and software
problems. It also explains several types of common messages that may be displayed on the screen. The following pages
contain troubleshooting information on:

Audio Memory
Battery/Battery gauge PC Card
CD drive Power
Diskette/Diskette drive Printer
Display Touch Pad
Hard drive Keyboard/Numeric keypad
Hardware Installation

Since symptoms can be similar, carefully match the symptoms of the computer malfunction against the problem description
in the Troubleshooting tables to avoid a misdiagnosis.

WARNING: To avoid a potential shock hazard during troubleshooting procedures, disconnect all power

sources before removing the keyboard cover or the display bezel.

Before Replacing Parts

Verify that cables are connected properly to the suspected defective parts.

■ Run Computer Setup after connecting external devices.

■ Verify that all required device drivers are installed.

■ Verify that all required changes have been made to the CONFIG.SYS file.

■ Verify that all required changes have been made to the AUTOEXEC.BAT file.

■ Verify that all printer drivers have been installed for each application.

Return to the

Troubleshooting index page.

compaq.gif (932 bytes)

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Solving Minor Problems

Some minor problems and possible solutions are outlined in the following tables. If the problem
appears related to a software application, check the documentation provided with the software.

The following problems and possible solutions are addressed:

● Audio Problems

● Battery Pack and Battery Gauge Problems

● CD Drive Problems

● Diskette and Diskette Drive Problems

● Display Problems

● Hard Drive Problems

● Hardware Installation Problems

● Keyboard/Numeric Keypad Problems

● Memory Problems

Solving Audio Problems

Some common audio problems and solutions are listed in the following table.

Solving Audio Problems

Problem Probable Cause Solution(s)

Computer does not beep after the Power-On
Self-Test (POST).

This is typical; it indicates successful
completion of the Power-On Self-Test
(POST).

No action is required.

Solving Battery Pack and Battery Gauge Problems

Some common causes and solutions for battery pack problems are listed in the following table.
The "Solving Power Problems" section in this chapter may also be applicable.

Solving Battery Pack and Battery Gauge Problems

Problem Probable Cause Solution(s)

Computer won't turn on when battery
pack is inserted and power cord is
unplugged.

Computer is beeping and battery LED
icon is blinking.

Battery pack is discharged. Connect the computer to an external

power source and charge the battery
pack.

Replace the battery pack with a fully
charged battery pack.

Check the battery connectors on the
system board to verify that they are
evenly spaced and are not bent or
broken.

Battery charge is low. Immediately save any open file(s).

Then do any one of the following:

● Connect the computer to an

external power source to charge
the battery pack.

● Turn off the computer or initiate

Hibernation until you can find
another power source or charge
the battery pack.

Computer battery LED icon (front on
the unit) blinks to indicate low battery
condition, but computer does not beep.

Battery LED icon doesn't light and
battery pack won't fast charge.

You have to set the date and time every
time you turn on the computer.

Battery charge does not last as long as
expected.

Volume is turned down too low. Adjust the volume.

Battery pack is already charged. No action is necessary.

Battery pack was exposed to
temperature extremes.

Battery pack is at end of its life. Replace battery pack.
RTC battery is dead. Replace the RTC battery.

Battery is being exposed to high
temperatures or extremely cold
temperatures.

Battery has partially self-discharged. Recharge the battery. Discharge the

Allow time for the battery pack to
return to room temperature.

Keep the battery pack within the
recommended operating temperature
range 50° F to 104° F (10° C to 40° C)
or recommended storage range -4° F to
86° F
(-20° C to 30° C ). Recharge the
battery pack.

battery completely and then recharge
it.

Battery pack is warm to the touch after
charging.

Battery pack operating time is far less
than the documented average operating
time.

Power management is disabled. Set a power management level in

Computer Setup.

An external device or PC Card is
draining the battery.

Normal warming has occurred due to
charging.

Power management is turned off or
disabled.

An external device or PC Card is
draining the battery.

Battery pack has partially self­discharged.

Turn off or disconnect external devices
when not using them.

No action is required.

Enable power management in Computer
Setup and in Windows Power
Properties.

Turn off or disconnect external devices
when not using them.

Condition the battery pack by fully
charging, fully discharging, then fully
recharging it.

To maintain the charge, leave battery
packs in the computer when it is
connected to external power.

If the computer is disconnected from
external power for more than two
weeks, remove battery packs from the
computer to reduce the discharge rate.

Battery pack is being exposed to high
temperatures or extremely cold
temperatures.

Keep the battery pack within the
recommended temperature ranges.
Operating: 50° F to 104° F
(10° C to 40° C)
Storage: -4° F to 86° F
(-20° C to 30° C )

Recharge the battery pack.

Solving CD Drive Problems

Some common causes and solutions for CD drive problems are listed in the following table.

Solving CD Drive Problems

Problem Probable Cause Solution(s)

CD drive cannot read a compact disc. Compact disc is upside down or is

improperly inserted in the CD drive.

CD is CD Plus or Pregap/Track 0 type. Cannot read these type CDs in 24x.

Open the CD loading tray, lay the
compact disc in it (label side up), then
close the tray.

Remove the CD.

Solving Diskette and Diskette Drive Problems

Some common causes and solutions for diskette and diskette drive problems are listed in the
following table.

Solving Diskette and Diskette Drive Problems

Problem Probable Cause Solution(s)

Diskette drive cannot write to a
diskette.

Diskette is write-protected. Disable the diskette's write-

protect feature or use a
diskette that is not write­protected.

Computer is writing to

the wrong drive.

Not enough space is left

Check the drive letter in the
path statement.

Use another diskette.

on the diskette.

Drive error has occurred. Run Computer Checkup from

the Compaq Diagnostics
diskette.

Diskette is not formatted. Format the diskette. At

the system prompt, enter

FORMAT A:

Diskette drive cannot read a
diskette.

The wrong type of diskette is
being used.

Use the type of diskette
required by the drive.

Diskette has a bad sector. Copy files to hard drive or

another diskette. Reformat bad
floppy.

Drive error has occurred. Run Computer Checkup from

the Compaq Diagnostics
diskette.

Diskette is not formatted. Format the diskette. At the

system prompt, enter

FORMAT A:

Cannot boot from diskette. Bootable diskette is not in

drive A.

Put the bootable diskette in
drive A.

Diskette Boot has incorrect

setting in Computer Setup.

Run Computer Setup and set
diskette as first to boot.

Solving Display Problems

This section lists some common causes and solutions for computer display and external monitor
problems.

You can perform a monitor self-test on an external VGA color or monochrome monitor by
disconnecting the monitor from the computer. To do so, complete the following steps:

1. Turn off the monitor.

2. Turn off the computer.

3. Disconnect the monitor signal cable from the computer.

4. Turn on the monitor and allow it to warm up for one minute.

The display should be white. A narrow black border may also appear on the left and right sides of
the display. Either of these displays indicates that the monitor is working properly.

Solving Display Problems

Problem Probable Cause Solution(s)

Screen is dim. Control for brightness or

contrast (if applicable) is not
set properly.

Adjust the Brightness of the
display by using Fn + F7 or
Fn + F8.

Adjust the Contrast of the
display by using Fn + F5 or
Fn + F6.

Computer screen is in direct
light.

Screen is blank. Screen save was initiated by

Power Management due to
lack of user activity.

Display has overheated. If computer is in direct

Display is blank and the Power icon

System is in Suspend mode. Press any key or touch the
is flashing, or the Suspend icon is
present.

Internal display is blank and the
screen on an external monitor
displays information.

Internal display flashes or has

Display function was

switched to the external

monitor.

Using 1024 × 768 or higher

Tilt display or move
computer.

Press any key or touch the
Touch Pad.

sunlight, move it and allow it
to cool off.

Touch Pad.

Use Fn + F3 to switch
between LCD or CRT.

Restart the computer.
garbled characters when computer is
connected to external monitor.

The light tube-s on the edge of the display
panel do not light up at all and Power-On Self­Test (POST) completes when the unit is
powered up.**

The light tubes on the edge of the display
panel do not light up at all and Power-On Self­Test (POST) does not complete when the unit
is powered up.**

resolution on external
monitor and have toggled
back to internal display,
which supports up to 800 ×

600.

Improper backlight or display cable
connections

Defective inverter board. Replace the display assembly.
Defective display cable. Replace the display assembly.
Defective display panel. Replace the display assembly.
Defective system board. Replace the system board.
Defective system board. Replace the system board.

Replace the display assembly.

Backlight (brightness) cannot be adjusted with
Fn + F7 or Fn + F8.

Contrast cannot be adjusted with
Fn + F5 or Fn + F6.

Improper display cable connections. 1. Reseat the display cable to the

system board.

2. Replace the display assembly.

Defective inverter board. Replace the display assembly.
Defective display cable. Replace the display assembly.
Defective system board. Replace the system board.
System may have a TFT display

(which is always at maximum
contrast)

Improper display-cable connections. 1. Reseat the display cable to the

Defective inverter board. Replace the display assembly.
Defective display cable. Replace the display assembly.

No adjustment is possible.

system board.

2. Replace the display assembly.

** This problem indicates that the backlight or its power circuitry has failed. Since you cannot observe the POST result on
the display panel when the backlight is not functioning, connect the unit to an external monitor before powering the unit
up. If an external monitor is not available, verify that POST completes by opening and closing the display, listening for the
single or double beep, and watching for the LEDs to turn on at the front of the computer.

Defective system board. Replace the system board.

Problem Probable Cause Solution(s)

This display panel has a continuous pattern
across it (e.g., a "jailbars" pattern), has a
single color on it, or has garbled graphics
across the entire panel. This failure is for
patterns across the entire panel
(not just on one section).

Improper display cable
connections

Reseat the display cable to the following
until the problem is solved:

1. System board

2. Display assembly

Ghost bars extending from graphics on the
display.

Defective display cable. Replace the display assembly.

Defective inverter board. Replace the display assembly.

Defective system board. Replace the system board.

Common characteristic of STN
displays.

1. Change the background colors.

2. Adjust the Contrast of the display by
using Fn + F5 or Fn + F6.

A single line, a small group of lines, or a block
appears on the display panel. This failure
occurs in only a section of the display panel.

Defective display panel. Replace the display assembly.

To perform a "self-test" on an external VGA color or monochrome monitor, complete the following steps: The

NOTE:

screen should be white. A narrow black border may also appear on the left and right sides of the display. Either of
these displays indicates that the monitor is working properly.

Solving Hard Drive Problems

Some common causes and solutions for hard drive problems are listed in the following table.

CAUTION: To prevent loss of information, always maintain an up-to-date backup of your hard drive at all

times, in case of errors or failures.

Solving Hard Drive Problems

Problem Probable Cause Solution(s)

Reading hard drive takes an unusually
long time after restarting the computer.

Hard drive error occurs. Hard drive has bad sectors or has

Hard drive does not work. Hard drive is not seated properly. Turn off and unplug the computer,

System entered Hibernation due to
low battery condition and is now
exiting from it.

failed.

Give the system time to restore the
previously saved data to its exact state
before Hibernation.

Computer Checkup.

Run

remove the battery pack, and remove
and then reinstall the hard drive.

Solving Hardware Installation Problems

Some common causes and solutions for hardware installation problems are listed in the following
table.

Solving Hardware Installation Problems

Problem Probable Cause Solutions(s)

A new device is not recognized as
part of the computer system.

Power switch of new external

Cable(s) of new external
device are loose, or
power cables are unplugged.

device is not turned on.

Ensure that all cables are
properly and securely
connected.

Turn off the computer, turn on
the external device, then turn
on the computer to integrate
the device with the computer
system.

Device is not seated properly. Turn off the computer and

reinsert the device.

Solving Keyboard/Numeric Keypad Problems

Some common causes and solutions for keyboard/numeric keypad problems are listed in the
following table.

Solving Keyboard/Numeric Keypad Problems

Problem Probable Cause Solution(s)

Embedded numeric keypad on
computer keyboard is disabled.

Num Lock function is not
enabled.

Press the Shift+NumLk keys
to enable the Num Lock
function and embedded
numeric keypad. The Num
Lock icon on the status panel
turns on.

Embedded numeric keypad is
disabled and Num Lock function is
on.

External numeric keypad is
connected to the computer.

Disconnect the external
numeric keypad from the
computer.

Solving Memory Problems

Some common causes and solutions for memory problems are listed in the following table.

Solving Memory Problems

Problem Probable Cause Solution(s)

Memory count during Power-On Self­Test (POST) is incorrect.

Optional memory expansion
card is installed incorrectly,
is incompatible with

Ensure that the optional
memory expansion card is
installed correctly.

"Out of Memory" message is
displayed on the screen or
insufficient memory error occurs
during operation.

Solving Minor Problems (continued)

the computer, or is defective.

System ran out of
memory for the application.

Too many TSR (terminate­and stay-resident)
applications are running.

Check the application
documentation for memory
requirements.

Install additional memory.

Remove from memory any
TSR applications that you do
not need.

or return to the Troubleshooting index page.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Solving PC Card Problems

Some common causes and solutions for PC Card problems are listed in the following table.

Solving PC Card Problems

Problem Probable Cause Solution(s)

When turned on, the
computer does not beep
when a PC Card is inserted.

Card is not inserted properly.

PC Card beeps are disabled.

Speaker is turned off or
volume is turned down.

PC Card drivers are not
installed.

Ensure that the card is
inserted in the correct
orientation.

Double-click the PC Card icon
in the Control Panel; click the
Global Settings tab; then,
enable PC Card sound effects.

Press volume buttons to
turn the speaker on; then,
increase the volume.

Double click the Add New
Hardware icon in the Control
Panel for installation
instructions.

PC Card modem, fax, or
network card does not work.

Card or card driver is not
supported.

Card is not fully inserted into
the slot or is not inserted
properly.

Telephone cord is not plugged
in all the way.

Necessary drivers are not

If PC Card or drivers are not
compatible with Windows,
install drivers and use the PC
Card in MS-DOS mode.

Contact your Compaq­authorized service provider
for a list of PC Cards tested
successfully in Compaq PC
Card platforms.

Ensure that the card is
inserted in the correct
orientation.

Check and secure telephone
connection.

Install drivers.

PC Card modem or fax card
does not work.

Modem network PC Card
does not work.

Memory or storage card does

installed (turned on).
You are trying to access the

card using the wrong COM

See
COM port.

Specifications to verify

port.
The card conflicts with a

serial device.

See

Specifications to verify

address.

The card is not supported. Use supported cards only.

Network driver is not

Install driver.
installed or is not set up
properly.

Telephone cord is not

Verify telephone connection.
properly connected.

SRAM and flash

Install driver.

not work.

memory cards require that
the memory card driver be
loaded (turned on).

Flash memory cards require
the that the Microsoft
FlashFile System be loaded.

Hard drives on flash
mass storage cards require
that the
PC Card ATA driver
be loaded.

You are trying to access the
hard drive card using the
wrong drive letter.

Double-click My Computer

to verify the drive letter

assigned to the card.
The card is not supported. Contact your Compaq

authorized service provider

for a list of PC Cards tested

successfully in Compaq PC

Card platforms.

Solving Power Problems

Also see "Solving Battery and Battery Gauge Problems" in this section.

Solving Power Problems

Problem Probable Cause Solution(s)

Computer won't turn on and

Computer is not connected to

Insert battery or connect an

battery pack is not inserted.

Computer turned off while it
was left unattended and the
power icon is off.

a power source.

Power cords to the external
power source are unplugged.

external power source.

Ensure that power cords
connecting the computer and
the external power source are
plugged in properly.

Power adapter is defective. Replace AC Adapter and

restart.
System board is defective. Replace the system board.
System initiated Hibernation

due to a critical low-battery
condition.

Replace the battery pack with

a fully charged battery pack or

connect the computer to an

external power source. Then

turn on the computer.
System initiated Hibernation

Turn on the computer.
after a preset timeout.

Solving Printer Problems

If you experience problems printing, run a printer self-test. Refer to the documentation provided with your printer for
instructions. If the self-test fails, it is a printer-specific problem. Also refer to the printing section of your application
documentation.

Solving Printer Problems

Problem Probable Cause Solution(s)

Printer will not turn on. The signal cable may not be

connected properly, or the
printer is unplugged.

Ensure that the signal cable is
properly connected and that the
power cord is connected to the
electrical outlet.

Printer will not print. Printer is not turned on or is off

line.
The device drivers for your

application are not installed.

Printer that is set up for a
network is not connected to the
network.

Printer cable is too long,
unshielded, or defective.

Paper tray is empty. Fill the paper tray with paper

Turn the printer on and set it to
on line.

Refer to the printer
documentation to install the
correct printer driver.

Connect the printer to the
network.

Replace the cable.

and set the printer to online.

Printer prints garbled
information.

Correct printer drivers are not
installed.

Refer to the printer
documentation to install the
correct printer driver.

Cable is not connected properly. Ensure that the printer signal

cable is properly connected to
the computer.

Cable is defective. Replace the printer cable and

retest.

Solving Touch Pad/Pointing Device Problems

Some common causes and solutions for Touch Pad/pointing device problems are listed in the
following table.

Solving Touch Pad/Pointing Device Problems

Problem Cause Solution(s)

Touch Pad or mouse does not
work.

Incorrect or no device driver is
installed.

Install the device driver and add
to the AUTOEXEC.BAT file or
CONFIG.SYS file.

External mouse does not work. Mouse is not securely

The device driver is not
installed in Windows.

connected or is connected to an
incorrect external connector.

Install the Touch Pad/mouse
driver in Windows.

Ensure that the mouse is
securely connected to the
appropriate external connector.

Touch Pad or mouse does not
work even though the device is
enabled in Windows.

Mouse is not enabled. Enter MOUSE at the system

prompt to activate the mouse
device driver.

Add a line in the
AUTOEXEC.BAT file to
automatically activate the
mouse device driver each time
computer is turned on or
restarted.

Cable not properly seated in

Reseat cable.

Touch Pad board.
Defective Touch Pad board. Replace Touch Pad board.
Defective system board. Replace system board.
Device driver is not correctly

installed in Windows.

Install the appropriate device
driver in Windows.

Cursor skips or moves
abnormally when using the
Touch Pad.

The Touch Pad needs to be
cleaned.

Clean the Touch Pad with a
cloth dampened with alcohol or
an ammonia-based glass
cleaner. Wipe up liquid with a
dry cloth.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Contacting Compaq Support

Obtain the following information before contacting Compaq Reseller Support:

● Product name

● Product serial number

● Purchase date

● Conditions under which the problem occurred

● Any error messages that have occurred

● Hardware configuration

● Type of printer connected

● Hardware/software being used

● Printed result of Computer Checkup (TEST)

● Printed copies of CONFIG.SYS and AUTOEXEC.BAT files, if possible

Shipping Preparation

To ship the computer, complete the following steps:

1. Back up the critical hard drive files. Ensure that backup tapes/diskette are
not exposed to electrical or magnetic fields while stored in transit.

2. Turn off the computer and external devices.

3. Disconnect the external devices from their power sources, then from the
computer.

IMPORTANT:

4. Close the display and all exterior doors of the computer.

Ensure that there is no diskette in the diskette drive, no PC
Cards in the PC slots, and no CD in the CD-ROM drive.

5. Pack the computer with sufficient packing material to protect it. Use the
original packing box or similar packaging.

Return to

Compaq Diagnostics page or Troubleshooting Index page.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

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

Miscellaneous Hardware &

Boards

Display Assembly

Miscellaneous Parts

Cables

Plastics Kit

Mass Storage Devices

Documentation & Software

Miscellaneous Cable Kit

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Presario 1200 Series

Keyboards

Touchpad and Palmrests

CPU Upper Cover with Power Switch

CPU Base Enclosure

Battery Packs:

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

System Unit

Place cursor over each device to obtain its part number.

System Unit

Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit

Index

Cables
Miscellaneous

Hardware and
Plastics Kit

Miscellaneous
Parts

Documentation
and Software

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Presario 1200 Series

Heatspreader:

Modem, K-56.0 Kbps Data/Fax w/o SRAM (US, Canada, Latin America) 138659-001

Processor:

System Board and Memory Module:

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Boards

System Unit

Boards

Display
Assembly

Mass Storage
Devices

Miscellaneous
Cable Kit

Cables
Miscellaneous

Hardware and
Plastics Kit

Index

Place cursor over each device to obtain its part number.

Miscellaneous
Parts

Documentation
and Software

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Presario 1200 Series

Display Panel Assembly:

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Display Assembly

System Unit
Boards

Display
Assembly

Mass Storage
Devices

Miscellaneous
Cable Kit

Cables

Index

Miscellaneous
Hardware and
Plastics Kit

Miscellaneous
Parts

Documentation
and Software

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Presario 1200 Series

Hard Drives w/Mounting Brackets

24x CD Drive

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Mass Storage Devices

System Unit
Boards
Display

Assembly

Mass Storage
Devices

Miscellaneous
Cable Kit

Cables
Miscellaneous

Hardware and
Plastics Kit

Place cursor over each device to obtain its part
number.

Index

Miscellaneous
Parts

Documentation
and Software

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Miscellaneous Cables Kit

System Unit
Boards
Display

Assembly
Mass Storage

Devices

Miscellaneous
Cable Kit

Cables
Miscellaneous

Hardware and
Plastics Kit

Place cursor over each device for a
description of that item.

Spare Part Number: 330946-001

Index

Miscellaneous
Parts

Documentation
and Software

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Presario 1200 Series

North America 293831-001


Asia Pacific w/adapter 137256-001


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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Cables

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit

Description Spare Part Number

Power Cord

[FrontPage Save Results
Component]

Index

Cables

Miscellaneous
Hardware and
Plastics Kit

Miscellaneous
Parts

Documentation
and Software

Description Spare Part Number

Modem
Cables

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Miscellaneous Hardware and Plastics Kit

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Cables

Miscellaneous
Hardware and
Plastics Kit

Miscellaneous Hardware and Plastics Kit

Hardware Spare Part Number:

346853-001

Plastics Kit Spare Part Number

(Models 1255-1267):

(Models 1272-1275): 142657-001

Description Quantity

1. Door, Battery Pack 1 each

2. Cover, Memory Module 1 each

330949-001;

Miscellaneous
Parts

Documentation
and Software

3. Door, PCMCIA 2 each

4. Hinge (Clutch) Cover, Left 1 each

5. Hinge (Clutch) Cover, Right 1 each

6. Rubber Foot 10 each

7. Hard Drive Mounting Bracket 1 each

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Presario 1200 Series

Miscellaneous Parts (not shown):

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Miscellaneous Parts

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Cables

Index

Miscellaneous
Hardware and
Plastics Kit

Miscellaneous
Parts

Documentation
and Software

Use the scroll down menu for the description and
spare part number of spare parts Not Shown.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Documentation and Software

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Cables

NOTE: The following information applies only to
Models 1255-1267.

Description Spare Part

Quick Restore CD

Australia
China (PRC)

Quick Reference Guide

Index

Number

388205-371

388205-AA1

162212-001

Miscellaneous
Hardware and
Plastics Kit

Miscellaneous
Parts

Documentation
and Software

(single issue)

184960-001
Quick Reference Guide (quarterly
subscription)

QuickFind for Windows*, Asia Pacific

137906-xxx

Edition

*QuickFind is updated monthly. To complete the
QuickFind part number, add the suffix from the table
below for the desired month. If you do not specify the 3­digit suffix, the default is the current month in which the
order is placed.

QuickFind Part Number Suffix

Suffix Month Suffix Month

-001 January -007 July

-002 February -008 August

-003 March -009 September

-004 April -010 October

-005 May -011 November

-006 June -012 December

NOTE: The following information applies only to
Models 1272-1275.

Description Spare Part

Number

Reference Guide

117894-001
(All countries except French Canada, Latin
America, and Mexico)

French Canada
Latin America, Mexico

Quick Restore CD
(All countries except French Canada, Latin
America, Mexico, and the Caribbean)

French Canada
Latin America, Mexico
Caribbean

Feature Guide
(All countries except French Canada, Latin
America, and Mexico)

117894-121

117894-161

122315-001

122315-121

122315-161

140472-001

120231-001

French Canada
Latin America, Mexico

120231-121

120231-161

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

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
Processor
Hard Drives

Report the computer [

] serial number to

Compaq when requesting information or

ordering spare parts.

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

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Electrostatic Discharge

A sudden discharge of static electricity

from a finger or other conductor can

destroy static-sensitive devices or

microcircuitry.

● Often the spark is neither felt nor heard, but damage occurs.

An electronic device exposed to an electrostatic discharge
(ESD) may not be affected at all and will work perfectly
throughout a normal cycle. Although it may function normally
for a while, it is possible for the exposed device's internal
layers to degrade, reducing its life expectancy considerably.

● Networks built into multiple integrated circuits provide some

protection, but in many cases, the discharge can contain
enough power to alter device parameters and melt silicon
junctions.

Generating Static

This table shows the different electrostatic voltage levels generated

by various activities.

NOTE: 700 volts can degrade
a product.

Typical Electrostatic Voltages

Event

Walking across carpet 35,000 V 15,000 V 7,500 V
Walking across vinyl floor 12,000 V 5,000 V 3,000 V

10% 40% 55%

Relative Humidity

Motions of bench worker 6,000 V 800 V 400 V
Removing DIPS from

plastic tubes
Removing DIPS from vinyl

trays
Removing DIPS from

Styrofoam
Removing bubble pack

from PCBs
Packing PCBs in foam-lined

box

Return to

Removal & Replacement Procedures

2,000 V 700 V 400 V

11,500 V 4,000 V 2,000 V

14,500 V 5,000 V 3,500 V

26,000 V 20,000 V 7,000 V

21,000 V 11,000 V 5,000 V

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Service Considerations

Listed below are some of the considerations that you should keep in mind during the
disassembly and re-assembly of the computer.

Tool and Software Requirements

To service the computer, you need the following:

● Compaq screwdriver kit (Spare Part No. 161946-001)

● Torx T-9 screwdriver

● 3/16-inch and 5mm nut drivers (for screwlocks and standoffs)

● Small, standard screwdriver

● Small, Phillips screwdriver

● Diagnostics software

Screws

The screws used in the computer are not interchangeable. If an incorrect screw is used during the
reassembly process it can damage the unit.

Compaq strongly recommends that each screw removed during disassembly be kept with the part

from which it was removed, then returned to the original location.

IMPORTANT:

Return to Removal & Replacement Procedures

As each subassembly is removed from the computer, it should be placed away
from the work area to prevent damage.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Cables and Connectors

Most cables used throughout the units are ribbon cables; they must be handled with
extreme care to avoid damage.

Use the following precautions when handling cables to prevent damage to the cable or
computer:

● Apply only the required tension to seat or unseat the cables during insertion and removal

from the connector.

● Handle cables by the connector whenever possible.

● In all cases, avoid bending, twisting, or tearing the cables, and ensure that the cables are

routed in such a way that they cannot be caught or snagged by parts being removed or
replaced. Handle flex cables with extreme care; they can tear easily.

CAUTION: When servicing these computers, ensure that cables are placed in their

proper location during the reassembly process. Improper cable placement can cause
severe damage to the unit.

Select the desired illustration.

● Removing a Cable from a ZIF Connector.

● The ribbon cable position for the 3.2-GB, 4.0-GB, 4.3-GB, and 6.4-GB hard drive.

● The ribbon cable position for the CD drive.

● The ribbon cable position for the diskette drive.

● The cable position for the speaker assembly.

Plastic Parts

Plastic parts can be damaged if excessive force is used during disassembly and reassembly. When
handling the plastic parts, use care. Apply pressure only at the points designated in the
maintenance instructions.

Return to

Removal & Replacement Procedures

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

ZIF Connectors

The computer uses a zero insertion force
(ZIF) connector for the keyboard cable to the
system board. To remove a cable from a ZIF
connector, lift both corners of the ZIF
connector and slide simultaneously with
constant light force.

CAUTION: A ZIF connector and

its attached cable can be easily
damaged. Handle only the
connector slide when removing
or replacing a cable. Never pull
or twist on the cable while it is
connected.

Back to

CAUTION: When servicing this

computer, ensure that cables
are placed in their proper
location during the reassembly
process. Improper cable
placement can damage the
computer.

Cables and Connectors.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

The ribbon cable position for the 3.2-GB, 4.0-GB,

4.3-GB,
or 6.4-GB hard drive.

Back to Cables and Connectors.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

The ribbon cable position for the CD drive.

Back to Cables and Connectors.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

The ribbon cable position for the diskette drive.

Back to

Cables and Connectors.

Maintenance & Service Guide

Presario 1200 Series

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

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

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

The cable position for the speaker assembly.

Back to Cables and Connectors.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Preparing the Computer for Disassembly

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack

Before beginning removal and replacement
procedures,
complete the following procedures:

1. Disconnect AC power and any external devices.

2. Remove the battery pack.

3. Remove any PC Cards.

Index

Palmrest
Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem
Display Panel

Assembly

WARNING: Metal objects can damage the battery pack as well as the

battery contacts in the battery compartment. To prevent damage, do not
allow metal objects to touch the battery contacts. Place only the battery
pack for the Compaq Presario 1200 Series Portable Computers into the
battery compartment. Do not force the battery pack into the bay if
insertion does not occur easily.

CAUTION: Do not crush, puncture, or incinerate the battery pack. Do not

open a battery pack, as this damages the pack, makes it unusable, and
exposes potentially harmful battery components. There are no field­serviceable parts located inside the battery pack.

Upper CPU
Cover

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

NOTE:

The Compaq Presario 1200 Series Portable Computers have several
screws of various sizes which are not interchangeable. Care must be
taken during reassembly to ensure that the correct screws are used in
their correct location. During removal please keep respective screws with
their associated sub-assembly.

Return to

Removal & Replacement Procedures.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Battery Pack

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Index

To remove
the battery
pack,
complete
the
following
steps:

Battery Pack

Palmrest
Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem

1. Slide the
battery pack
compartment
door down
and remove
it from the
battery pack.

Next Step

Display Panel
Assembly

Upper CPU
Cover

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

2. Pull forward on the
battery pack tab

and remove the
battery pack from

the chassis.

To replace the battery
pack, reverse the
previous procedures.

Return to

Removal &
Replacement
Procedures

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Palmrest Cover with Touch Pad

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Index

The palmrest
cover with touch
pad must be
removed to gain
access to any of
the interior
components of the
computer, and it is
the first
component that
has to be removed

Battery Pack

Palmrest
Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem

to gain access to
the interior
components.

It is not
necessary
to remove
the display
panel

NOTE:

assembly to
access the
interior
components
of the
computer.

Display Panel
Assembly

Upper CPU
Cover

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

To remove the
palmrest cover
with touch pad,
complete the
following steps:

Prepare the

1.

computer for
disassembly.

2. Close the
computer and turn
the computer
upside down.

3. Remove four
screws from the
bottom of the
computer.

Next Step

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

4. Turn the computer
over (right side up),
pull forward on the
display latches to
release and open the
display assembly.

5. Lift up front end of
the palmrest cover with
touch pad and remove
it from the groove in
the chassis.

6. Tilt the palmrest
cover with touch pad,
allowing it to rest on
top of the keyboard,
and disconnect the flex
cable from the ZIF
connector on the
palmrest cover.

CAUTION: When

replacing the
palmrest cover
with touch pad,
ensure that the
cable is fully
inserted into the
ZIF connector on
the system board.
If the metal end
comes in contact
with the
keyboard, damage
may occur to the
computer.

To replace the palmrest
cover with touch pad,
reverse the previous
procedures.

When replacing
the palmrest
cover, ensure
that the cable is

NOTE:

properly routed
through the slot
on the Upper
CPU cover.

Return to

Removal &

Replacement
Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Heatspreader

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack

Index

To remove
the
heatspreader,
complete the
following
steps:

Prepare

1.

the computer
for
disassembly.

Palmrest
Cover with
Touch Pad

Heatspreader

Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem
Display Panel

Assembly
Upper CPU

Cover

2. Remove
the palmrest

cover with
touch pad.

3. Remove

Keyboard.

4. Remove
two screws
from the
heatspreader
and lift out of
the chassis.

To replace
the
heatspeader,
reverse the

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

previous
procedures.

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Keyboard

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Index

To remove the
keyboard,
complete the
following
steps:

Prepare the

1.

computer for
disassembly.

2. Remove
the palmrest

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader

Keyboard

Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem

cover with
touch pad.

3. Turn the
keyboard
over, and
allow it to rest
on top of the
palmrest
cover with
touchpad slot
opening.

4. Remove
the

heatspreader .

Display Panel
Assembly

Upper CPU
Cover

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

5. Disconnect
the flex cable
from the ZIF
connector on
the system
board.

To replace the
keyboard,
reverse the
previous
procedures.

Return to

Removal &
Replacement
Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Processor

Electrostatic
Discharge

Service
Consideration

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack

Index

To remove
the
processor,
complete the
following
steps:

Prepare

1.

the computer
for
disassembly.

Palmrest
Cover with
Touch Pad

Heatspreader
Keyboard

Processor

Hard Drives
CD Drive
Battery

Charger
Board

Modem
Display Panel

Assembly
Upper CPU

Cover

2. Remove

palmrest
cover with
touch pad.

3. Remove
the

heatspreader.

4. Remove
the keyboard.

5. Insert a
small-blade
screwdriver
into the
bottom slot
opening on
the processor

Speaker
Assembly

Diskette
Drive

Fan Assembly
System

Board
Dip Switch

Settings
Memory

Module

and push
toward the
display to
release the
processor
from the
chassis slot.

6. Lift the
processor out
of the
processor
chassis slot.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

To replace the processor complete the
following steps:

1. Insert the processor into the slot on the system board.

The notch on the left corner of the processor serves as an

NOTE:

NOTE:

orientation indicator. Align the notch on the left corner of the
processor with the notch on the left corner of the processor
chassis slot.

When installing the processor into the chassis slot, be sure
that the hole pattern on the chassis slot lines up with the
pins on the processor. The processor should drop into the
socket without any force.

2. Insert a small blade screw driver into the top slot opening on the
processor and push it away from the display to lock the processor.

3. Verify the switch settings.

Return to

Removal & Replacement Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

NOTE:

Index

CAUTION: When replacing the system board, ensure the dip switch voltage settings on the system board

are correct for the computer model and processor voltage marked on the processor chip. If the system board
dip switch voltage settings are not correct, damage may occur to the computer and/or system board.

The black area on the dip switch indicates the position of the switch.

For Models 1272,
1273, 1274, 1275:

Return to Removal & Replacement Procedures

For Models 1255,
1256, 1260, 1262,
1266, 1267:

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Hard Drive

Electrostatic
Discharge

Service
Consideration

Cables and
Connectors

Preparing the
Computer for
Disassembly

Index

To remove
the hard
drive,
complete
the following
steps:

1. Prepare
the

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor

Hard Drives

CD Drive
Battery

Charger
Board

Modem

computer
for
disassembly.

2. Remove
the palmrest

cover with
touch pad.

3. Remove
the

keyboard.

4. Remove
two screws
from the

Display Panel
Assembly

Upper CPU
Cover

Speaker
Assembly

Diskette
Drive

Fan Assembly
System

Board
Dip Switch

Settings

hard drive
mounting
bracket and
lift up the
hard drive.

Next Step

Memory
Module

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

5. Disconnect the hard
drive data cable from
the hard drive and
remove from the
chassis.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

To remove the hard
drive mounting
bracket, remove four
screws from the
mounting bracket as
shown in the
illustration.

To replace the hard
drive and hard drive
mounting bracket,
reverse the previous
procedures.

Return to

Removal &

Replacement
Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the CD Drive

Electrostatic
Discharge

Service
Consideration

Cables and
Connectors

Preparing the
Computer for
Disassembly

Index

To remove
the CD drive,
complete the
following
steps:

1. Prepare

computer

the

for
disassembly.

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives

CD Drive

Battery
Charger
Board

Modem

2. Remove

the palmrest

cover with
touch pad.

3. Remove

the

heatspreader.

4. Remove

the keyboard.

5. Remove

the two
screws
located at the

Display Panel
Assembly

Upper CPU
Cover

Speaker
Assembly

Diskette
Drive

Fan Assembly
System

Board
Dip Switch

Settings

back of the
CD drive.

Next Step

Memory
Module

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

6. Remove the two
screws on the bottom of
the unit that secure the
CD bracket to the
system board.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

7. Disconnect the CD
drive cable from the
CD drive and remove
the CD drive from the
chassis.

To replace the CD
drive, reverse the
previous procedures.

Return to

Removal &
Replacement
Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Battery Charger Board

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Index

To remove the
battery charger
board, complete
the following
steps:

1. Prepare the

computer for
disassembly.

2. Remove the

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive

Battery
Charger Board

palmrest cover
with touch pad.

3. Remove the

hard drive.

4. Remove one
screw from the
battery charger
board, unplug
the board from
the connector
on the system
board, and lift
the battery
charger board
out of the
chassis.

Modem
Display Panel

Assembly
Upper CPU

Cover
Speaker

Assembly
Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

To replace the
battery charger
board, reverse
the previous
procedures.

When
replacing
the
battery
charger
board,
ensure

NOTE:

that the
pins are
aligned
with the
connector
on the
system
board.

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Modem

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Index

To remove
the modem,
complete the
following
steps:

1. Prepare
the computer

for
disassembly.

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board

Modem

Display Panel
Assembly

Upper CPU
Cover

2. Remove
the palmrest

cover with
touch pad.

3. Remove
the

heatspreader.

4. Remove
the keyboard.

5. Remove
two screws
securing
modem and
pull the
modem off
the connector
on the

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

system
board.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

6. Disconnect the
modem cable from the
modem.

To replace the modem,
reverse the previous
procedures.

Return to Removal &
Replacement
Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Display Panel Assembly

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack

Index

To remove the display
panel assembly,
complete the
following steps:

1. Prepare the

computer for
disassembly.

2. Remove the

palmrest cover with
touch pad.

Palmrest
Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem

Display Panel
Assembly

Upper CPU
Cover

3. Remove the

heatspreader.

4. Remove the

keyboard.

5. Remove the

modem.

6. Pull up the hinge
covers and lift the
covers off the chassis.

Carefully
remove
the
display

IMPORTANT:

panel

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

assembly
hinge
covers.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

7. Disconnect the flex
cable attached to the
display panel assembly
from the ZIF connector
on the system board.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

8. Disconnect the
backlight cable attached
to the display panel
assembly from the
connector on the
system board.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

9. Support the back
of the display panel
assembly and remove
two screws from each
of the display panel
hinges.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

10. Gently pull the flex
cable attached to the
display panel assembly
through the slot on the
Upper CPU cover and
remove the display
panel assembly with
flex and backlight cable
attached.

To replace the display
panel assembly, reverse
the previous
procedures.

When removing
the display panel
assembly,
observe the

NOTE:

display panel
assembly flex
cable routing and
position.

Return to

Removal &
Replacement
Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Upper CPU Cover

Index

To remove
the Upper
CPU cover
complete the
following
steps:

1. Prepare
the

computer

for

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest

Cover with

disassembly.

2. Remove
the palmrest

cover with
touch pad.

3. Remove
the

heatspreader.

4. Remove
the keyboard.

5. Remove
the hard

Touch Pad
Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem
Display Panel

Assembly

Upper CPU
Cover

Speaker

drive.

6. Remove
the display

panel
assembly.

7. Remove
the screw
located under
the bottom of
the unit
(rear) which
secures the
Upper CPU
cover to the
chassis and
remove four

Assembly
Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings
Memory

Module

screws
located on
the top.

8. Lift the
Upper CPU
cover off the
snaps on the
chassis. This
disconnects
the power
switch from
the connector
on the
system
board.

To replace
the Upper
CPU cover,
reverse the
previous
procedures.

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Speaker Assembly

Electrostatic
Discharge

Service

Index

To remove
the speaker
assembly,
complete the
following
steps:

1. Prepare

computer

the

for
disassembly.

Considerations
Cables and

Connectors
Preparing the

Computer for
Disassembly

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor

2. Remove

the palmrest

cover with
touch pad.

3. Remove

the

heatspreader.

4. Remove

the keyboard.

5. Remove

the hard

drive.

Hard Drives
CD Drive
Battery

Charger Board
Modem
Display Panel

Assembly
Upper CPU

Cover

Speaker
Assembly

Diskette Drive
Fan Assembly

6. Remove

the display

panel
assembly.

7. Remove

the Upper

CPU cover.

8. Remove

the battery

charger
board.

9. Disconnect

the speaker

System Board
Dip Switch

Settings
Memory

Module

cables from
the system
board and
remove the
speaker
assembly
from the
chassis.

To replace
the speaker
assembly,
reverse the
previous
procedures.

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Diskette Drive

Electrostatic
Discharge

Service
Consideration

Cables and
Connectors

Index

To remove the
diskette drive,
complete the
following steps:

Prepare the

1.

computer for
disassembly.

2. Remove the

palmrest cover
with touch pad.

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

3. Remove the

heatspreader.

4. Remove the

keyboard.

5. Remove the

hard drive.

6. Remove the

display panel
assembly.

7. Remove the

Upper CPU
cover.

Charger
Board

Modem
Display Panel

Assembly
Upper CPU

Cover
Speaker

Assembly

Diskette
Drive

Fan Assembly
System

Board

8. Remove

battery charger
board.

9. Remove the
diskette drive.

Next Step

When
replacing
the
diskette
drive,

Dip Switch
Settings

Memory
Module

ensure
that the
diskette

NOTE:

drive
eject
lever is
properly
inserted
in the
chassis
slot.

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

10. Disconnect the
diskette drive data
cable from the system
board.

To replace the diskette
drive, reverse the
previous procedures.

Return to Removal &
Replacement
Procedures

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Fan Assembly

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Index

To remove
the fan
assembly,
complete the
following
steps:

1. Prepare

computer

the

for
disassembly.

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

2. Remove

the palmrest

cover with
touch pad.

3. Remove

the

heatspreader.

4. Remove

the keyboard.

5. Remove

the display

panel

Charger Board
Modem
Display Panel

Assembly
Upper CPU

Cover
Speaker

Assembly
Diskette Drive

Fan Assembly

System Board
Dip Switch

Settings
Memory

Module

assembly.

6. Remove

the hard

drive.

7. Remove

the Upper

CPU cover.

8. Lift the fan

assembly
from the
chassis slot
and
disconnect
the fan cable
from the
connector on
the system
board.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

To remove the fan gasket, complete the following step:

Pull the gasket from the fan.

To replace the fan assembly, reverse the previous procedure.

When replacing the fan, ensure that the fan is

NOTE:

blowing into the computer. (The vendor label on the
fan should be facing in, toward the processor).

To replace the fan with gasket attached, place the

NOTE:

fan assembly at a 15° angle and push forward.

Return to Removal & Replacement Procedures

Index

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the System Board

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

To remove the system board, complete
the following steps:

1. Prepare the

computer for

disassembly.

2. Remove the palmrest cover with

Index

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem

touch pad.

3. Remove the heatspreader.

4. Remove the keyboard.

5. Remove the processor.

6. Remove the modem.

7. Remove the hard drive.

8. Remove the display panel assembly.

9. Remove the Upper CPU Cover.

Display Panel
Assembly

Upper CPU
Cover

Speaker
Assembly

Diskette Drive
Fan Assembly

System Board

Dip Switch
Settings

Memory
Module

10. Remove the battery charger board.

11. Remove the diskette drive.

12. Remove the CD drive.

13. Remove the fan.

14. Disconnect the speaker assembly
cables.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

15. Remove three
standoffs from the
system board.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

16. Remove two screws
from the CD Drive
mounting rails and
remove the mounting
rails from the system
board.

Next Step

compaq.gif (932 bytes)

top_nav.gif (991 bytes)

Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

17. Remove three
screws from the system
board.

Next Step

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

18. Pull the PCMCIA eject lever out (straight), lift
up the right side of the system board and pull
forward to remove the system board from the
chassis.

To replace the system board, reverse the
previous procedures.

IMPORTANT:

Dip Switch System Board Settings

Index

Remove all cables from the system
board.

Return to Removal & Replacement

Procedures

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removing the Memory Module

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Index

To remove
the memory
module,
complete
the following
steps:

1. Prepare
the

computer
for

Battery Pack
Palmrest

Cover with
Touch Pad

Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery

Charger Board
Modem

disassembly.

2. Close the
computer
and turn the
computer
upside
down.

3. Remove
the screw
from the
memory
module
door, and
slide the

Display Panel
Assembly

Upper CPU
Cover

Speaker
Assembly

Diskette Drive
Fan Assembly
System Board
Dip Switch

Settings

Memory
Module

memory
module door
to the right.

Next Step

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

4. Pull side levers to
release the memory
module and unplug the
memory module from
the system board.

To replace the memory
module, reverse the
previous procedures.

Return to Removal &
Replacement
Procedures

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Specifications

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

System interrupts

Memory Expansion

System DMA

Battery Pack

System I/O Address

Diskette Drive

System memory Catalog

Physical & environmental

Display

Physical and Environmental

Computer Specifications

Dimensions

(All models with 12.1" display)

Height

Depth

Width

Hard Drive

CD Drive

U.S. Metric

1.97 in

12.20 in

10.08 in

4.95 cm

31.00 cm

25.60 cm

(Model 1275 with 13.0" display)

Height

Depth

Width

Weight

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

Stand-Alone (Battery Pack) Power

Requirements

1.97 in

12.33 in

10.08 in

6.68 lb

6.68 lb

6.68 lb

6.68 lb

6.68 lb

6.68 lb

6.68 lb

6.68 lb

6.68 lb

6.68 lb

NiMH

5.00 cm

31.30 cm

25.60 cm

3.34 kg

3.34 kg

3.34 kg

3.34 kg

3.34 kg

3.34 kg

3.34 kg

3.34 kg

3.34 kg

3.34 kg

Li-ion

Nominal Operating
Maximum Average

Peak Operating

AC Power Requirements

Operating Voltage
Operating Current

Operating Frequency

Maximum Transient

Operating Temperature

Non-operating Temperature

Operating Relative Humidity (non-

condensing)

Non-operating Relative Humidity

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

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

100-240 V

0.8/0.4 A RMS
47-63 Hz

Meets IEC 801-4 and IEC801-5

1kV for 50 ns

50° to 95 °F 10° to 35 °C

-4° to 140 °F -20° to 60 °C
10 to 90% 35°C to 90%

5 to 95% 60°C to 95%

(tw = 38.7°C max)

Operating Altitude

Non-operating Altitude

Operating Shock

Non operating Shock

Operating Vibration

Non-operating Vibration

10 G, 11 ms, half sine
240 G, 2 ms, half sine

0 to 10,000 ft 0 to 3.15 km
0 to 30,000 ft 0 to 9.14 km

0.5 G

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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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

System Interrupts

System Interrupts

Hardware

IRQ

IRQ00 Timer Interrupt
IRQ01 Standard 101/102-Key or Microsoft

IRQ02 Programmable interrupt controller
IRQ03 Compaq Presario 56K-DF

System Function

Natural Keyboard

Index

IRQ04 Communications Port (COM1)
IRQ05 ES1869 Plug and Play AudioDrive
IRQ06 Standard Floppy Disk Controller
IRQ07 Printer Port (LPT1)
IRQ08 System CMOS/real time clock
IRQ09 (free)
IRQ10 OPTi 82C861 PCI to USB Open Host

Controller
IRQ11 IRQ Holder for PCI Steering
IRQ11 NeoMagic MagicGraph 128XD
IRQ12 Synaptics PS/2 TouchPad
IRQ13 Numeric data processor
IRQ14 Primary IDE controller (dual fifo)
IRQ14 Opti Viper Max Dual PCI IDE Controller
IRQ15 Secondary IDE controller (dual fifo)
IRQ15 Opti Viper Max Dual PCI IDE Controller

Return to the index list of

Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

System DMA

System DMA

Hardware DMA System Function

0
1
2
3
4

Index

ES1869 Plug and Play AudioDrive
ES1869 Plug and Play AudioDrive

Standard Floppy Disk Controller

(free)

Direct memory access controller

5
6
7

(free)
(free)
(free)

Return to the index list of Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

System I/O Address

System I/O Address

I/O Address (Hex)

(Shipping Configuration)

0000H - 000FH

0020H - 0021H
0022H - 0024H Motherboard resources

Index

System Function

Direct memory access

controller

Programmable interrupt

controller

0040H - 0043H System timer
0060H - 0060H
0061H - 0061H System speaker
0064H - 0064H

0070H - 0071H
0080H - 0080H Motherboard resources
0081H - 008FH
0092H - 0092H Motherboard resources

00A0H - 00A1H

Standard 101/102-Key or

Microsoft Natural Keyboard

Standard 101/102-Key or

Microsoft Natural Keyboard

System CMOS/real time

clock

Direct memory access

controller

Programmable interrupt

controller

00C0H - 00DFH

00ECH - 00EFH Motherboard resources

00F0H - 00FFH Numeric data processor

0170H - 0177H

0170H - 0177H

01F0H - 01F7H

01F0H - 01F7H

0220H - 022FH

Direct memory access

controller

Opti Viper Max Dual PCI

IDE Controller

Secondary IDE controller

(dual fifo)

Opti Viper Max Dual PCI

IDE Controller

Primary IDE controller (dual

fifo)

ES1869 Plug and Play

AudioDrive

02F8H - 02FFH Compaq Presario 56K-DF
0330H - 0331H
0370H - 0371H Motherboard resources
0376H - 0376H

0376H - 0376H
0378H - 037FH Printer Port (LPT1)

0388H - 038BH

03B0H - 03BBH

03C0H - 03DFH

ES1869 Plug and Play

AudioDrive

Opti Viper Max Dual PCI

IDE Controller

Secondary IDE controller

(dual fifo)

ES1869 Plug and Play

AudioDrive

NeoMagic MagicGraph

128XD

NeoMagic MagicGraph

128XD

03F0H - 03F5H

03F6H - 03F6H

03F6H - 03F6H

03F7H - 03F7H

03F8H - 03FFH

040BH - 040BH Motherboard resources

0480H - 048FH Motherboard resources

04D6H - 04D6H Motherboard resources

0800H - 0807H ES1869 Control Interface

Standard Floppy Disk

Controller

Opti Viper Max Dual PCI

IDE Controller

Primary IDE controller (dual

fifo)

Standard Floppy Disk

Controller

Communications Port

(COM1)

0CF8H - 0CFFH PCI bus

Primary IDE Controller

FCF0H - FCF7H

(dual fifo)

Opti Viper Max Dual PCI

FCF0H - FCFFH

IDE Controller

Secondary IDE Controller

FCF8H - FCFFH

(dual fifo)

Return to the index list of Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

System Memory Catalog

System Memory Catalog

Memory Address System Function

00000000H - 00000000H Texas Instruments PCI-1131 Card

00000000H - 0009FFFFH System board extension for PnP

000A0000H - 000AFFFFH NeoMagic MagicGraph 128XD
000B0000H - 000BFFFFH NeoMagic MagicGraph 128XD

Index

Bus Controller

BIOS

000C0000H - 000CBFFFH NeoMagic MagicGraph 128XD

000E0000H - 000FFFFFH System board extension for PnP

00100000H - 01FFFFFFH System board extension for PnP

FD000000H - FDFFFFFFH NeoMagic MagicGraph 128XD
FEA00000H - FEBFFFFFH NeoMagic MagicGraph 128XD

FECFF000H - FECFFFFFH OPTi 82C861 PCI to USB Open Host

FED00000H - FEDFFFFFH NeoMagic MagicGraph 128XD

FFFC0000H - FFFFFFFFH Motherboard resources

Return to the index list of

BIOS

BIOS

Controller

Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

Display

12.1" (Diagonal) TFT Display

Active Area

Height

Width

Overall

Dimensions

Width

Height

Depth

Index

U.S. Metric

9.6"

7.2"

7.35"

10.7"
.27"

246 mm

184.5 mm

188.5 mm
275 mm

6.8 mm

Weight

Contrast Ratio

Brightness

Total Power

Consumption

16.24 oz. 464 g
40:1 40:1

70 nits. Avg. 70 nits. Avg.

3.5 - 4.0 W
(max)

3.5 - 4.0 W
(max)

12.1" (Diagonal) HPA Display
U.S. Metric

Active Area

Height

Width

9.56"

7.17"

245 mm

183.8 mm

Overall

Dimensions

Width

Height

Depth

Weight

Contrast Ratio

Brightness

Total Power

Consumption

13.0" (Diagonal) HPA Display

7.9"

10.7"
.31"

202.5 mm

275.0 mm

8.0 mm

18.2 oz. 520 g
40:1 40:1

70 nits. Avg. 70 nits. Avg.

4.0 - 4.5 W

4.0 - 4.5 W (max)

(max)

U.S. Metric

Active Area

Height

10.39"

7.79"

263.98

197.98 mm

mm

Width

Overall

Dimensions

Width

Height

Depth

Weight

Contrast Ratio

Brightness

Total Power

11.6"

8.58"
.31"

20.3 oz. 580 g
50:1 50:1

100 nits. Avg. 100 nits. Avg.

5 W (max) 5 W (max)

295.0 mm

218.0 mm

8.0 mm

Consumption

Return to the index list of Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

Memory Expansion

System Memory Expansion Board Memory Total Memory

32-MB 16-MB 48-MB
32-MB 32-MB 64-MB
32-MB 64-MB 96-MB

32-MB 128-MB 160-MB

Return to the index list of Specifications.

Index

Memory Expansion

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

Battery Pack

Index

Battery Pack

Nickel Metal Hydride (NiMH) Lithium Ion

(Li ion)

Dimensions

Height

Length

Width

Weight

Energy

Nominal Open Circuit Voltage

Capacity

Power

0.8 in (20.3 mm)

5.7 in (145 mm)

3.1 in (78.7 mm)

1.01 lb (458.1 g) 0.90 lb (408.2 g)

9.6 V

4.5 Ah

43.2 Wh

0.8 in (20.3 mm)

5.7 in (145 mm)

3.1 in (78.7 mm)

14.8 V

3.0 Ah

44.4 Wh

Environmental Requirements

Operating Temperature

Non-operating Temperature

Charging Temperature

32° F (0-50° C)

-20° C -60° C
5° C-45° C

Return to the index list of

32° F (0-50° C)

-20° C -60° C
5° C-45° C

Specifications

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

Diskette Drive

Diskette Drive

Capacity per Diskette

(High/Low)

Diskette Size

Number of LED Indicators

(Read/Write)

Number of Drives Supported

Drive Rotation (rpm)

Index

1,474 KB / 738 KB

2HD / 2DD

NONE

ONE

300

Transfer Rate (Kbps)

Bytes per Sector

Sectors per Track (High/Low)

Tracks per Disk (High/Low)

Access Times:

Track-to-Track (ms)

Average (ms)

Setting Time (ms)

Latency Average (ms)

Cylinders (High/Low)

500 / 250

512

18 / 9

160

3

94

15 (Max)

100

80

Number of Read/Write Heads

Return to the index list of

2

Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

Hard Drives

Capacity Per Drive

(Formatted)

Drive Type

Logical Configuration

Cylinders

Index

Hard Drives

3.2-GB 4.3-GB 4.8-GB

3.2 GB 4.3 GB 4.8 GB

2.5" 2.5" 2.5"

7470

6568

11648

Heads

Sectors per track

Bytes per sector

Seek Times

(Typical, Including

settling in ms)

Single track

Average

Full stroke

4

---

512

---

12

---

6

---

512

---

12

---

4

330 (max.)

512

5.5 max (read)

6.5 max (write)
16 max (read)

17 max (write)

30 max (read)

31 max (write)

Transfer Rate

At interface

Capacity Per Drive

Drive Type

Logical Configuration

Cylinders

Heads

33.3 MB/S 33.3 MB/S 33.3 MB/S

Hard Drives

6.4-GB

6.49 GB

2.5"

8955

6

Sectors per track

Bytes per sector

(Typical, Including settling in ms)

Seek Times

Single track

Average

Full stroke

Transfer Rate

At interface

Return to the index list of

---

512

--­12

---

33.3 MB/S

Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Specifications

CD Drive

24× CD Drive

Dimensions

Weight

Rotational Speed

Typical Transfer Rate

Sustained Data Transfer Rate

Access Time

Average Random Access Time

Index

128 x 12.7 x 129 mm

0.5 lbs

5120 rpm

3600 KB/s

110 ms

Spin Up time

Data Buffer Capacity

Return to the index list of

2.7 s

128 KB

Specifications.

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

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

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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to the top.

Serial Connector

Connector Pin Signal

1

2

3

4

5

6

7

Carrier Detect

Receive Data

Transmit Data

Data Terminal Ready

Signal Ground

Data Set Ready

Ready to Send

8

9

Clear to Send

Ring Indicator

Return

to the top.

Keyboard/Mouse

Connector Pin Signal

1

2

3

Data 1

Data 2

Ground

4

5

6

Return

to the top.

+5 V

Clock 1

Clock 2

External VGA Monitor

Connector Pin Signal

1

2

Red Analog

Green Analog

3

4

5

6

7

8

9

10

Blue Analog

Not connected

Ground

Ground Analog

Ground Analog

Ground Analog

Not connected

Ground

11

12

13

14

15

Return

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Monitor Detect

DDC2B Data

Horizontal Sync

Vertical Sync

DDC2B Clock

Universal Serial Bus

Connector Pin Signal

1

2

3

+5V
Data ­Data +
Ground

4

Return

to the top.

Modem

Connector Pin Signal

1

2

3

4

5

6

Unused

Unused

Tip

Ring

Unused

Unused

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Presario 1200 Series

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

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

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

The power consumption requirements for PC Cards vary widely. Some cards drain

NOTE:

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

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.

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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