Compaq PRESARIO 1245 User Manual

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Welcome to the Maintenance & Service Guide for the Presario Model 1245

...

Notice

Preface

Product

Description

Troubleshooting

Illustrated

Parts Catalog

Removal &

Replacement

Procedures Specifications Connector Pin

Assignments Battery Pack

Operations

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.

Customer Support.

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Notice

The information in this guide is subject to change without notice.

COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

This guide contains information protected by copyright. No part of this guide may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation.

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

Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation. Windows 98 is a trademark of Microsoft Corporation.

The software described in this guide is furnished under a license agreement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement.

Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.

Maintenance and Service Guide

Compaq Presario 1200 Series Portable Computers

First Edition (June 1999) Compaq Computer Corporation

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Preface

This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq Presario Model 1245 Portable Computer.

Compaq Computer Corporation reserves the right to make changes to the Model 1245 without notice.

Symbols

The following words and symbols mark special messages throughout this guide.

WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.

IMPORTANT:

Text set off in this manner presents clarifying information or specific instructions.

NOTE:

Text set off in this manner presents commentary, sidelights, or interesting points of information.

Technician Notes

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

Maintenance & Service Guide

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Product Description

Presario 1200 Series

Model: 1245

Models and Features Controls and Lights Left Side

Components Right Side

Components Bottom of Unit Rear Connectors Power Management

for Windows 98

Compaq

Presario Portable Computers...

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

This fullfunction,

AMD-K6

portable computer allows full desktop functionality.

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Models & Features

Models and Features

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Pin Assignments | Battery Pack Operations

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Power Management

Portable Computer Model 1245

Display Processor Hard Drive CD Drive Modem Battery System Memory

Compaq Presario 1200 Series

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

3.2-GB 24× MAX 56K Metis (or) 56K Khan ES NiMH 32 MB

Maintenance & Service Guide

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Controls and Lights

Presario 1200 Series

Model: 1245

Models and Features

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Power Management for Windows 98

Front Panel Components

1. Display

2. Power Button

3. Keyboard

4.TouchPad

5. Speakers & Ports

6. Palmrest

7. (L) TouchPad Button

8. (R) TouchPad Button

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

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

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

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

1. PC Card Eject Lever

2. PC Card Slot

3. Diskette Drive Slot

4. Diskette Eject Button

Maintenance & Service Guide

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Right Side Components

Presario 1200 Series

Model: 1245

Models and Features

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Power Management for Windows 98

1. Battery Compartment.

2. CD Drive.

3. CD Drive Eject Button.

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Bottom of Unit

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Pin Assignments | Battery Pack Operations

Models and Features

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Power Management for Windows 98

1. Upgradeable memory compartment.

2. Rubber feet.

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Rear Connectors

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Pin Assignments | Battery Pack Operations

Models and Features

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Power Management for Windows 98

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.

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

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

Model: 1245

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

Model: 1245

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

Model: 1245

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

Press any key Flashing green

combination

- Fn+F4

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

Hibernate Manual - Press Power

Button once

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

Press Power Button once

Power LED

No Power LED, blank screen

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

Model: 1245

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

Model: 1245

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.

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Illustrated Parts Catalog

This section provides a breakdown and identifies the spare parts ordering

number associated with each item for the Compaq Presario 1200 Series Portable

Computers.

System Unit

Boards

Display Assembly

Mass Storage Devices

Miscellaneous Cable Kit

Cables

Miscellaneous Hardware &

Plastics Kit

Miscellaneous Parts

Documentation & Software

System Unit

Keyboards

Place cursor over each device to obtain its part number.

System Unit

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Boards Display

Assembly Mass Storage

Devices Miscellaneous

Cable Kit Cables Miscellaneous

Hardware and Plastics Kit

Miscellaneous Parts

Documentation and Software

Modem, K-56.0 Kbps Data/Fax w/o SRAM (Domestic) 138659-001

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Boards

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Pin Assignments | Battery Pack Operations

System Unit

Boards

Display Assembly

Mass Storage Devices

Miscellaneous Cable Kit

Cables Miscellaneous

Hardware and Plastics Kit

Miscellaneous Parts

Documentation and Software

Place cursor over each device to obtain its part number.

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Display Assembly

System Unit Boards

Display Assembly

Mass Storage Devices

Miscellaneous Cable Kit

Cables Miscellaneous

Hardware and Plastics Kit

Miscellaneous Parts

Documentation and Software

Maintenance & Service Guide

Presario 1200 Series

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Mass Storage Devices

Model: 1245

System Unit Boards Display

Assembly

Mass Storage Devices

Miscellaneous Cable Kit

Cables Miscellaneous

Hardware and Plastics Kit

Miscellaneous Parts

Documentation and Software

Place cursor over each device to obtain its part number.

Maintenance & Service Guide

Presario 1200 Series

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Miscellaneous Cables Kit

Model: 1245

System Unit Boards Display

Assembly Mass Storage

Devices

Miscellaneous Cable Kit

Cables Miscellaneous

Hardware and Plastics Kit

Miscellaneous Parts

Documentation and Software

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

Spare Part Number: 330946-001

North America 293831-001 

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Cables

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Pin Assignments | Battery Pack Operations

System Unit Boards Display

Assembly Mass Storage

Devices Miscellaneous

Cable Kit

Cables

Miscellaneous Hardware and Plastics Kit

Miscellaneous Parts

Description Spare Part Number

Power Cord

[FrontPage Save Results Component]

Documentation and Software

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Miscellaneous Hardware and Plastics Kit

System Unit Boards Display

Assembly Mass Storage

Devices Miscellaneous

Cable Kit

Miscellaneous Hardware and Plastics Kit

Hardware Spare Part Number:

346853-001

Plastics Kit Spare Part Number

142657-001

Description Quantity

Cables

Miscellaneous Hardware and Plastics Kit

Miscellaneous Parts

Documentation and Software

1. Door, Battery Pack 1 each

2. Cover, Memory Module 1 each

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

Maintenance & Service Guide

Miscellaneous Parts (not shown):

Presario 1200 Series

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Miscellaneous Parts

System Unit Boards Display

Assembly

Model: 1245

Mass Storage Devices

Miscellaneous Cable Kit

Cables 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.

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Documentation and Software

System Unit Boards Display

Assembly Mass Storage

Devices Miscellaneous

Cable Kit Cables

Miscellaneous Hardware and Plastics Kit

Miscellaneous Parts

Description Spare Part

Number

Reference Guide

US, Canada French Canada Latin America, Mexico Australia, New Zealand, Asia, Pacific, United Kingdom Japan France, Belgium Italy Sweden

117894-001 117894-121 117894-161

117894-031 117894-291 117894-051 117894-061 117894-101 117894-331

Netherlands Quick Restore CD

Documentation and Software

US, Canada French Canada Latin America, Mexico Australia, New Zealand, Asia, Pacific United Kingdom Japan France, Belgium Italy Sweden Netherlands

Feature Guide

US, Canada French Canada Latin America, Mexico

122315-001 122315-121 122315-161

122315-371 122315-031 122315-291 122315-051 122315-AK1 122315-061 122315-101 122315-331

120231-001 120231-121 120231-161

Australia, New Zealand, Asia, Pacific, United Kingdom Japan France, Belgium Italy Sweden

120231-031 120231-291 120231-051 120231-061 120231-101 120231-331

Netherlands

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Removal and Replacement Procedures

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

Serial Number Location

Disassembly Sequence

Electrostatic Discharge

Service Considerations

Cables and Connectors

Preparing the Computer for Disassembly

Battery Pack Palmrest

Cover with Touch Pad

Heatspreader Keyboard Processor Hard Drives CD Drive Battery

Charger Board Modem Display Panel

Assembly Upper CPU

Report the computer [

] serial number to Compaq

when requesting information or ordering spare parts.

Cover Speaker

Assembly Diskette Drive Fan Assembly System Board Dip Switch

Settings Memory

Module

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

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

10% 40% 55%

Relative Humidity

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 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

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

Return to

Removal & Replacement Procedures

Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

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:

from the work area to prevent damage.

Return to Removal & Replacement Procedures

As each subassembly is removed from the computer, it should be placed away

+ 66 hidden pages