Text preview for : Presario 1245 Maintenance & Service Guide.pdf part of Compaq Presario 1245 Maintenance & Service Guide



Back to : Presario 1245 Maintenance | Home

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting 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 Customer Support. To report a technical problem, contact your Regional Support Center or IM Help Center.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Notice
The information in this guide is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL. This guide contains information protected by copyright. No part of this guide may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation. © 1999 Compaq Computer Corporation. All rights reserved. Printed in the U.S.A. Compaq, Presario 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
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Preface
This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq Presario 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:
q q q q q q

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
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Product Description
Models and Features Controls and Lights 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.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Models & Features
Models and Features Controls and Lights Left Side Components Right Side Components Bottom of Unit Rear Connectors Power Management

Compaq Presario 1200 Series

Portable Computer Model 1245
Display Processor Hard Drive CD Drive Modem Battery System Memory 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
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Controls and Lights
Models and Features Controls and Lights Left Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows 98 1. Display 2. Power Button 3. Keyboard 4.TouchPad 5. Speakers & Ports 6. Palmrest 7. (L) TouchPad Button 8. (R) TouchPad Button

Front Panel Components

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 mark

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
| Home Page | Notice | Preface | Product Description | Troubleshooting 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
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Right 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. Battery Compartment. 2. CD Drive. 3. CD Drive Eject Button.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Bottom of Unit
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.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Rear Connectors
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
| Home Page | Notice | Preface | Product Description | Troubleshooting 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
| 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:
q q q

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:

If you're on a network, it's recommended that you set System Standby to Never.

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: Always on System Standby: Turn OFF Monitor Turn OFF Hard Drive Plugged in Never 3 hours After 15 minutes
Running on Batteries

After 15 minutes

Never

After 10 minutes

Power Management Properties
Tab: ALARMS:: Low Battery Alarm: Critical Battery Alarm Alarm Actions: 10% 0% X Display Message Notification: Text Action: No Action

Power Management Properties
Tab: POWER METER: Tab: ADVANCED Default 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
| 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 Model: 1245
| 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 Sleep

To Initiate Manual keys combination - Fn+F4 Time Out Default 15 minutes if on Battery power (system will not time out to sleep)

To End

Indicators

Press any key Flashing green Power LED

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 Press Power shutdown via the start Button once button, or press and hold down the power button for 4 seconds
Return to Power Management for Windows 98 list.

No Power LED, blank screen

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| 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 Model: 1245
| 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.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting 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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

System Unit

Place cursor over each device to obtain its part number.
System Unit Boards Display Assembly Mass Storage Devices Miscellaneous Cable Kit Cables Miscellaneous Hardware and Plastics Kit Miscellaneous Parts Documentation and Software Keyboards

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Boards
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.

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting 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 Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Miscellaneous Cables Kit
System Unit Boards Display Assembly Mass Storage Devices Miscellaneous Cable Kit Cables Miscellaneous Hardware and Plastics Kit Miscellaneous Parts Documentation and Software Spare Part Number: 330946-001

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Cables
System Unit Boards Display Assembly Mass Storage Devices Miscellaneous Cable Kit Cables Miscellaneous Hardware and Plastics Kit Miscellaneous Parts Documentation and Software Description Spare Part Number

Power Cord

[FrontPage Save Results Component]
North America International 293831-001 293831-002

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting 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 Cables Miscellaneous Hardware and Plastics Kit Miscellaneous Parts Documentation and Software

Miscellaneous Hardware and Plastics Kit
Hardware Spare Part Number: 346853-001 Plastics Kit Spare Part Number 142657-001 Description 1. Door, Battery Pack 2. Cover, Memory Module 3. Door, PCMCIA 4. Hinge (Clutch) Cover, Left 5. Hinge (Clutch) Cover, Right 6. Rubber Foot 7. Hard Drive Mounting Bracket Quantity 1 each 1 each 2 each 1 each 1 each 10 each 1 each

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Miscellaneous Parts
System Unit Boards Display Assembly 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.
Miscellaneous Parts (not shown):

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting 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 Documentation and Software

Description Reference Guide US, Canada French Canada Latin America, Mexico Australia, New Zealand, Asia, Pacific, United Kingdom Japan France, Belgium Italy Sweden Netherlands Quick Restore CD 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 Australia, New Zealand, Asia, Pacific, United Kingdom Japan France, Belgium Italy Sweden Netherlands

Spare Part Number 117894-001 117894-121 117894-161 117894-031 117894-291 117894-051 117894-061 117894-101 117894-331

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removal and Replacement Procedures
This section explains the removal and replacement procedures for the computer.

Serial Number Location
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module ] serial number to Compaq Report the computer [ when requesting information or ordering spare parts.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting 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.
q

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.

q

Generating Static
This table shows the different electrostatic voltage levels generated by various activities.
NOTE: 700 volts can degrade a product.

Typical Electrostatic Voltages
Relative Humidity Event Walking across carpet Walking across vinyl floor Motions of bench worker 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 10% 35,000 V 12,000 V 6,000 V 2,000 V 11,500 V 14,500 V 26,000 V 21,000 V 40% 15,000 V 5,000 V 800 V 700 V 4,000 V 5,000 V 20,000 V 11,000 V 55% 7,500 V 3,000 V 400 V 400 V 2,000 V 3,500 V 7,000 V 5,000 V

Return to Removal & Replacement Procedures

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting 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:
q q q q q q

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

IMPORTANT:

Return to Removal & Replacement Procedures

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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:
q

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.

q

q

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.
q

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.

q

q

q

q

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 Model: 1245
| 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.

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. Back to Cables and Connectors.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| 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 hard drive.

Back to Cables and Connectors.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| 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 Model: 1245
| 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 Model: 1245
| 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.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Preparing the Computer for Disassembly
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

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. 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 Model 1245 Portable Computer into the battery compartment. Do not force the battery pack into the bay if insertion does not occur easily.
WARNING:

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 field-serviceable parts located inside the battery pack.
CAUTION:

NOTE:

The Compaq Presario Model 1245 Portable Computer has 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 subassembly.

Return to Removal & Replacement Procedures.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Battery Pack
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the battery pack, complete the following steps: 1. Slide the battery pack compartment door down and remove it from the battery pack. Next Step

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

2. Pull forward on the battery pack tab and remove the from battery pack the chassis. To replace the battery pack, reverse the previous procedures. Return to Removal & Replacement Procedures

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Palmrest Cover with Touch Pad
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

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 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. To remove the palmrest cover with touch pad, complete the following steps: 1. Prepare the 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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Heatspreader
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the heatspreader, complete the following steps: 1. Prepare the computer for disassembly. 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 previous procedures.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Keyboard
To remove the keyboard, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the palmrest 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 . 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

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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Processor
Electrostatic Discharge

Service Consideration 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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the processor, complete the following steps: 1. Prepare the computer for disassembly. 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 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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

NOTE:

When installing the processor into the chassis slot, be sure that the hole pattern on the chassis slot lines up with the NOTE: 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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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. NOTE:

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

Return to Removal & Replacement Procedures

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Hard Drive
Electrostatic Discharge

Service Consideration 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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the hard drive, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the palmrest cover with touch pad. 3. Remove the keyboard. 4. Remove two screws from the hard drive mounting bracket and lift up the hard drive. Next Step

Maintenance & Service Guide
Presario 1200 Series Models: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the CD Drive
Electrostatic Discharge

Service Consideration 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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the CD drive, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the palmrest cover with touch pad. 3. Remove the heatspreader. 4. Remove the keyboard. 5. Remove the two screws located at the back of the CD drive. Next Step

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Battery Charger Board
To remove the battery charger board, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the 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. 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.

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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Modem
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the modem, complete the following steps: 1. Prepare the computer for disassembly. 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 system board. Next Step

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

6. Disconnect the modem cable from the modem. To replace the modem, reverse the previous procedures. Return to Removal & Replacement Procedures

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Display Panel Assembly
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the display panel assembly, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the palmrest cover with touch pad. 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 assembly hinge covers. Next Step

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Upper CPU Cover
To remove the Upper CPU cover complete the following steps: 1. Prepare the computer for disassembly.
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

2. Remove the palmrest cover with touch pad. 3. Remove the heatspreader. 4. Remove the keyboard. 5. Remove the hard 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 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.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Speaker Assembly
To remove the speaker assembly, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the palmrest cover with touch pad. 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. 8. Remove the battery charger board. 9. Disconnect the speaker cables from the system board and remove the speaker assembly from the chassis. To replace the speaker assembly, reverse the previous procedures.

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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Diskette Drive
To remove the diskette drive, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the palmrest cover with touch pad. 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. 8. Remove battery charger board. 9. Remove the diskette drive. Next Step

Electrostatic Discharge

Service Consideration 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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

When replacing the diskette drive, ensure that the diskette NOTE: drive eject lever is properly inserted in the chassis slot.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Fan Assembly
To remove the fan assembly, complete the following steps: 1. Prepare the computer for disassembly. 2. Remove the palmrest cover with touch pad. 3. Remove the heatspreader. 4. Remove the keyboard. 5. Remove the display panel 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

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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

NOTE:
NOTE:

To replace the fan with gasket attached, place the fan assembly at a 15º angle and push forward.

Return to Removal & Replacement Procedures

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the System Board
Electrostatic Discharge

Service Considerations To remove the system board, complete the following steps: Cables and Connectors 1. Prepare the computer for Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard Processor Hard Drives CD Drive disassembly. 2. Remove the palmrest cover with touch pad. 3. Remove the heatspreader. 4. Remove the keyboard. 5. Remove the processor. 6. Remove the modem. 7. Remove the hard drive.

Battery 8. Remove the display panel assembly. Charger Board Modem Display Panel Assembly Upper CPU Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module 9. Remove the Upper CPU Cover. 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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

15. Remove three standoffs from the system board. Next Step

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

17. Remove three screws from the system board. Next Step

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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:

Remove all cables from the system board.

Dip Switch System Board Settings Return to Removal & Replacement Procedures

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Removing the Memory Module
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 Cover Speaker Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module

To remove the memory module, complete the following steps: 1. Prepare the computer for disassembly. 2. Close the computer and turn the computer upside down. 3. Remove the screw from the memory module door, and slide the memory module door to the right. Next Step

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

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

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Specifications
This chapter covers the following specifications for the Model 1245 Portable Computer:
System interrupts Memory Expansion System DMA Battery Pack System I/O Address Diskette Drive System memory Catalog Hard Drive Physical & environmental CD Drive Display

Physical and Environmental
Computer Specifications U.S. Dimensions Height Depth Width Weight Stand-Alone (Battery Pack) Power Requirements 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 (noncondensing) Non-operating Relative Humidity (tw = 38.7°C max) Operating Altitude Non-operating Altitude Operating Shock Non operating Shock Operating Vibration Non-operating Vibration 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 -4° to 140 °F 10 to 90% 5 to 95% 0 to 10,000 ft 0 to 30,000 ft 10 G, 11 ms, half sine 240 G, 2 ms, half sine 0.5 G 1.5 G 10° to 35 °C -20° to 60 °C 35°C to 90% 60°C to 95% 0 to 3.15 km 0 to 9.14 km 1.97 in 12.20 in 10.08 in 6.88 lb 4.95 cm 31.00 cm 25.60 cm 3.34 kg Metric

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

NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The Compaq Presario Model 1245 Portable Computer operates well within this range of temperatures. Return to the Top of this page.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Specifications
System Interrupts
System Interrupts Hardware IRQ IRQ00 IRQ01 IRQ02 IRQ03 IRQ04 IRQ05 IRQ06 IRQ07 IRQ08 IRQ09 IRQ10 IRQ11 IRQ11 IRQ12 IRQ13 IRQ14 IRQ14 IRQ15 IRQ15 System Function Timer Interrupt Standard 101/102-Key or Microsoft Natural Keyboard Programmable interrupt controller Compaq Presario 56K-DF Communications Port (COM1) ES1869 Plug and Play AudioDrive Standard Floppy Disk Controller Printer Port (LPT1) System CMOS/real time clock (free) OPTi 82C861 PCI to USB Open Host Controller IRQ Holder for PCI Steering NeoMagic MagicGraph 128XD Synaptics PS/2 TouchPad Numeric data processor Primary IDE controller (dual fifo) Opti Viper Max Dual PCI IDE Controller Secondary IDE controller (dual fifo) Opti Viper Max Dual PCI IDE Controller

Return to the index list of Specifications.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Specifications
System DMA
System DMA Hardware DMA 0 1 2 3 4 5 6 7 System Function
ES1869 Plug and Play AudioDrive ES1869 Plug and Play AudioDrive Standard Floppy Disk Controller (free) Direct memory access controller (free) (free) (free)

Return to the index list of Specifications.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Specifications
System I/O Address
System I/O Address I/O Address (Hex) 0000H - 000FH 0020H - 0021H 0022H - 0024H 0040H - 0043H 0060H - 0060H 0061H - 0061H 0064H - 0064H 0070H - 0071H 0080H - 0080H 0081H - 008FH 0092H - 0092H 00A0H - 00A1H 00C0H - 00DFH 00ECH - 00EFH 00F0H - 00FFH 0170H - 0177H 0170H - 0177H 01F0H - 01F7H 01F0H - 01F7H 0220H - 022FH 02F8H - 02FFH 0330H - 0331H 0370H - 0371H 0376H - 0376H 0376H - 0376H 0378H - 037FH 0388H - 038BH 03B0H - 03BBH 03C0H - 03DFH 03F0H - 03F5H 03F6H - 03F6H 03F6H - 03F6H 03F7H - 03F7H 03F8H - 03FFH 040BH - 040BH 0480H - 048FH 04D6H - 04D6H 0800H - 0807H 0CF8H - 0CFFH FCF0H - FCF7H FCF0H - FCFFH FCF8H - FCFFH System Function (Shipping Configuration) Direct memory access controller Programmable interrupt controller Motherboard resources System timer Standard 101/102-Key or Microsoft Natural Keyboard System speaker Standard 101/102-Key or Microsoft Natural Keyboard System CMOS/real time clock Motherboard resources Direct memory access controller Motherboard resources Programmable interrupt controller Direct memory access controller Motherboard resources Numeric data processor 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 Compaq Presario 56K-DF ES1869 Plug and Play AudioDrive Motherboard resources Opti Viper Max Dual PCI IDE Controller Secondary IDE controller (dual fifo) Printer Port (LPT1) ES1869 Plug and Play AudioDrive NeoMagic MagicGraph 128XD NeoMagic MagicGraph 128XD Standard Floppy Disk Controller Opti Viper Max Dual PCI IDE Controller Primary IDE controller (dual fifo) Standard Floppy Disk Controller Communications Port (COM1) Motherboard resources Motherboard resources Motherboard resources ES1869 Control Interface PCI bus Primary IDE Controller (dual fifo) Opti Viper Max Dual PCI IDE Controller Secondary IDE Controller (dual fifo)

Return to the index list of Specifications.

Maintenance & Service Guide
Presario 1200 Series Model: 1245
| Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations

Specifications
System Memory Catalog
System Memory Catalog Memory Address 00000000H - 00000000H 00000000H - 0009FFFFH 000A0000H - 000AFFFFH 000B0000H - 000BFFFFH 000C0000H - 000CBFFFH 000E0000H - 000FFFFFH 00100000H - 01FFFFFFH FD000000H - FDFFFFFFH FEA00000H - FEBFFFFFH FECFF000H - FECFFFFFH FED00000H - FEDFFFFFH FFFC0000H - FFFFFFFFH System Function Texas Instruments PCI-1131 Card Bus Controller System board extension for PnP BIOS NeoMagic MagicGraph 128XD NeoMagic MagicGraph 128XD NeoMagic MagicGraph 128XD System board extension for PnP BIOS System board extension for PnP BIOS NeoMagic MagicGraph 128XD NeoMagic MagicGraph 128XD OPTi 82C861 PCI to USB Open Host Controller NeoMagic MagicGraph 128XD Motherboard resources

Return to the index list of Specifications.

Maintenance & Service Guide
Presario 1200 Series Models: 1245
| Home Page | Noti