HP 1277, 1278 manual Preparing the Computer for Disassembly

Page 43

Maintenance & Service Guide

Presario Series

Models: 1246, 1247, 1277, 1278, and 1279

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

Removal and Replacement Procedures

Preparing the Computer for Disassembly

 

Before beginning removal and replacement procedures, complete the

Removal

following procedures:

Sequence

 

 

 

 

 

Electrostatic

1.

Disconnect AC power and any external devices.

Discharge

 

 

 

 

 

 

 

 

Service

2.

Remove the battery pack.

Considerations

 

 

 

Cables and 3. Remove any PC Cards.

Connectors

Preparing the

 

 

 

 

 

Computer for

 

 

 

 

 

Disassembly

 

 

 

 

The battery pack should be removed before performing any

 

IMPORTANT:

 

 

Battery Pack

 

 

 

 

internal maintenance on the computer.

 

 

 

 

 

 

 

 

 

 

 

 

Palmrest

 

 

 

 

 

Cover with

 

 

 

 

 

Touch Pad

 

 

 

 

 

 

 

 

 

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

 

 

 

 

Keyboard

 

 

 

 

battery contacts in the battery compartment. To prevent damage, do

 

Heatspreader

 

 

 

not allow metal objects to touch the battery contacts. Place only the

 

 

 

 

 

 

 

 

battery pack for the Compaq Presario Series Portable Computers into

Processor

 

 

 

 

the battery compartment.

 

Hard Drive

 

 

 

Do not force the battery pack into the bay if insertion does not occur

 

 

 

 

 

 

 

 

easily.

CD Drive

 

 

 

 

 

 

 

 

 

 

 

 

Battery

 

 

 

 

 

Charger Board

 

 

 

 

 

 

 

 

 

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

 

 

 

 

Modem

 

 

 

not open a battery pack, as this damages the pack, makes it

 

 

 

 

 

Display Panel

 

 

 

unusable, and exposes potentially harmful battery components.

Assembly

 

 

 

There are no field-serviceable parts located inside the battery pack.

 

 

 

 

 

 

 

 

 

 

 

 

Upper CPU

 

 

 

 

 

Cover

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Speaker

 

 

 

 

 

Assembly

 

 

 

The Compaq Presario Series Portable Computers have several screws

 

 

 

 

 

 

 

 

 

 

 

of various sizes which are not interchangeable. Care must be taken

Diskette Drive

NOTE:

 

 

during reassembly to ensure that the correct screws are used in their

 

Fan Assembly

 

 

 

correct locations. During removal, please keep respective screws

 

 

 

 

 

 

 

 

with their associated subassembly.

System Board

 

 

 

 

 

 

 

 

 

 

 

 

Dip Switch

 

 

 

 

 

Settings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Memory

 

 

 

 

 

Module

 

 

 

 

 

 

 

 

 

 

 

Image 43
Contents Page Compaq Computer Corporation Technician Notes PrefaceCompaq Presario Series Portable Computer is Product DescriptionMAH NiMH Models and FeaturesControls and Lights Front Bezel Lights Front Bezel Buttons Left Side Components Product DescriptionRight Side Components Bottom of Unit Rear Connectors Pow Power Management for WindowsFollow the Preliminary Steps Run the Power-OnSelf-Test Post TroubleshootingRun Computer Checkup Preliminary StepsCover with Touch Pad Clearing the Power-on PasswordRunning Post Power-On Self Test PostComputer Checkup Test Compaq DiagnosticsShipping Preparation Contacting Compaq SupportProcessor Test Error Codes Diagnostic Error CodesBefore Replacing Parts Troubleshooting Without DiagnosticsSolving Minor Problems Maintenance & Service GuideSolving Power Problems Illustrated Parts Catalog System Unit Mass Storage DevicesDescription Spare Part Number BoardsDisplay Assembly Mass Storage Devices Miscellaneous Cable Kit Spare Part Number Miscellaneous Cables KitMiscellaneous Hardware Kit Miscellaneous Hardware Kit Spare Part Number 346853-001Miscellaneous Plastics Kit Miscellaneous Parts Documentation and Software Feature GuideSerial Number Location Removal and Replacement ProceduresElectrostatic Discharge Removal and Replacement ProceduresService Considerations Removal and Replacement ProceduresCables Cables and ConnectorsCAU Back to Cables and Connectors Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Cable position for the speaker assembly Preparing the Computer for Disassembly Removal Sequence Removing the Battery PackRemoving the Battery Pack Removing the Palmrest Cover with Touch Pad Removing the Palmrest Cover with Touch Pad Removing the Keyboard Computer Removing the ProcessorTo replace the processor, complete the following steps Removing the ProcessorRemoving the Heatspreader Removing the 4.3-GB or 4.8- GB Hard Drive Removing the 4.3-GB or 4.8-GB Hard Drive Removing the 4.3-GB or 4.8-GB Hard Drive Removing the CD Drive Removal and Replacement Procedures Return to Removal Replacement Procedures Removing Battery Charger Board Removing the Modem Removing the Modem Removing Display Panel Assembly Display Panel AssemblyRemoving the Display Panel Assembly Close the display panel assembly and push back on Removal and Replacement Procedures Lvds Removing the Upper CPU Cover Removal and Replacement Procedures Memory Module Removing the Speaker AssemblyUpper CPU cover Removing Diskette DriveRemoving Fan Assembly Important the arrow located on Removing the Fan AssemblyElectrostatic Removing the System Board Removal and Replacement Procedures Remove two screws from the system board Removal and Replacement Procedures Return to Removal & Replacement Procedures Removing the Memory Module Removing the Memory Module Physical and Environmental SpecificationsPin Signal Connector Pin AssignmentsIncreasing Battery Pack Operating Time Battery Pack Operations
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