HP 1805 manual Preliminary Steps, Run Computer Checkup

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Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

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

Preliminary Steps

Before running POST, complete the following preliminary steps:

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

2.Run Computer Checkup.

3.Turn off the computer and its external devices.

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

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

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

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

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

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

When the preliminary steps are completed, you are ready to run POST.

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Contents Maintenance & Service Guide Maintenance & Service Guide Preface SymbolsPort Replicator Product DescriptionFollow the Preliminary Steps Run the Power-OnSelf-Test Post TroubleshootingIllustrated Parts Catalog Serial Number Location Removal and Replacement ProceduresSpecifications Connector Pin Assignments Battery Pack Operating Time Compaq Presario 1800 Series Portable Computer Models Models and FeaturesModel Front of Unit Controls and LightsPort Replicator Left Side ComponentsRight Side Components Bottom of Unit Rear Connectors Port Replicator Power Management for Windows Run Computer Checkup Preliminary StepsRunning Post Power-On Self Test PostClearing the Power-on Password Computer Checkup Test Compaq DiagnosticsView System Information Inspect Shipping Preparation Contacting Compaq SupportProcedures Diagnostic Error CodesBefore Replacing Parts Troubleshooting Without DiagnosticsSolving Minor Problems Solving Touch Pad/Pointing Device Problems Solving PC Card ProblemsSolving Power Problems Solving Printer ProblemsUnited States 330981-001 System UnitModem, 56.0 Kbps Data/Fax w/o BoardsDescription Mass Storage Devices Miscellaneous Cables Kit Spare Part Number Miscellaneous Cables KitModem Cables Spare Part Number DescriptionMiscellaneous Hardware and Plastics Kit Spare Part Number Miscellaneous Hardware and Plastics KitMiscellaneous Parts QuickFind Part Number Suffix Month Description Spare Part Number Quick Restore CDDocumentation and Software Quick Reference GuideGenerating Static Electrostatic DischargeService Considerations Plastic Parts Cables and ConnectorsCables Select the desired illustrationZIF Connectors Maintenance & Service Guide Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Back to Cables and Connectors Preparing the Computer for Disassembly Preparing the Computer for DisassemblyRemoving the Keyboard Prepare the computer for disassemblyRemoving the Heatspreader Removing the Modem Return to Removal Replacement Procedures Removing the Processor Replace the processor bracket Removing the Status Panel Audio Board Removing the Interface Board with HeaderNext Step When replacing interface board, ensure both Interface Board Components Removing the 3.2-GB, 4.0-GB, or 6.4-GB Hard Drive Maintenance & Service Guide Bracket, reverse the previous procedures Removing the Battery Charger Board Removing the CD or DVD Drive Disconnect the CD or DVD drive cable from the system board Removing the Display Panel Assembly Removing the Upper CPU Cover Removing the Speaker Assembly Removing the Diskette Drive Maintenance & Service Guide Return to Removal Replacement Procedures Removing the Fan Assembly Removing the Audio Board To replace the audio board, reverse the previous procedures Removing the System Board Remove five standoffs from the system board Remove three screws from the system board Return to Removal & Replacement Procedures Removing the Memory Module Return to Removal Replacement Procedures
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