HP 1278, 1277 manual Removal and Replacement Procedures, Service Considerations

Page 36

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

Service Considerations

Listed below are some of the considerations that you should keep in mind during the disassembly and 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 all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.

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

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Contents
Page Compaq Computer Corporation Preface Technician NotesProduct Description Compaq Presario Series Portable Computer isModels and Features MAH NiMHControls and Lights Front Bezel Lights Front Bezel Buttons Product Description Left Side ComponentsRight Side Components Bottom of Unit Rear Connectors Power Management for Windows PowTroubleshooting Follow the Preliminary Steps Run the Power-OnSelf-Test PostPreliminary Steps Run Computer CheckupClearing the Power-on Password Cover with Touch PadPower-On Self Test Post Running PostCompaq Diagnostics Computer Checkup TestContacting Compaq Support Shipping PreparationDiagnostic Error Codes Processor Test Error CodesTroubleshooting Without Diagnostics Before Replacing PartsMaintenance & Service Guide Solving Minor ProblemsSolving Power Problems Illustrated Parts Catalog Mass Storage Devices System UnitBoards Description Spare Part NumberDisplay Assembly Mass Storage Devices Miscellaneous Cables Kit Miscellaneous Cable Kit Spare Part NumberMiscellaneous Hardware Kit Spare Part Number 346853-001 Miscellaneous Hardware KitMiscellaneous Plastics Kit Miscellaneous Parts Feature Guide Documentation and SoftwareRemoval and Replacement Procedures Serial Number LocationRemoval and Replacement Procedures Electrostatic DischargeRemoval and Replacement Procedures Service ConsiderationsCables and Connectors CablesCAU 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 Removing the Battery Pack Removal SequenceRemoving the Battery Pack Removing the Palmrest Cover with Touch Pad Removing the Palmrest Cover with Touch Pad Removing the Keyboard Removing the Processor ComputerRemoving the Processor To replace the processor, complete the following stepsRemoving 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 Display Panel Assembly Removing 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 Removing the Speaker Assembly Memory ModuleRemoving Diskette Drive Upper CPU coverRemoving Fan Assembly Removing the Fan Assembly Important the arrow located onElectrostatic 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 Specifications Physical and EnvironmentalConnector Pin Assignments Pin SignalBattery Pack Operations Increasing Battery Pack Operating Time
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