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Compaq N160 manual Nonfunctioning Keyboard, Troubleshooting, 2-20, Maintenance and Service Guide

Models: N160

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Troubleshooting

2.18 Nonfunctioning Keyboard

Keyboard

not operating

properly.

Connect notebook to good external keyboard.

External

device

works?

Reseat internal

keyboard

connector (if

applicable).

Replace system board.

OK?

Done

Replace internal

keyboard or

cable.

OK?

Replace system board.

Done

2–20	Maintenance and Service Guide

Page 47

Image 47

Compaq N160 manual Nonfunctioning Keyboard, Troubleshooting, 2-20, Maintenance and Service Guide

Contents

Document Part Number OctoberMaintenance and Service Guide Compaq Notebook Evo N160 SeriesDocument Part Number Maintenance and Service Guide First Edition October1 Product Description Contents2 Troubleshooting Contents 4 Removal and Replacement Preliminaries5 Removal and Replacement Procedures 3 Illustrated Parts CatalogScrew Listing Index 6 Specifications A Connector Pin AssignmentsB Power Cord Set Requirements Figure 1-1. Compaq Notebook Evo N160 Product DescriptionProduct Description ModelsComputer models are shown in Table1-1 Compaq Notebook Evo N160 Models and Model Naming ConventionsProduct Description Maintenance and Service GuideCompaq Notebook Evo N160 Models and Model Naming Conventions ContinuedProduct Description Compaq Notebook Evo N160Models and Model Naming Conventions Continued Product Description Maintenance and Service GuideCompaq Notebook Evo N160 Models and Model Naming Conventions ContinuedProduct Description Compaq Notebook Evo N160Models and Model Naming Conventions Continued Product Description Maintenance and Service GuideCompaq Notebook Evo N160 Models and Model Naming Conventions Continued1.1 Features Stereo line out/headphone Mono microphone QuickDock Port Replicator Connectors for RJ-45 network RJ-11 modem Universal Serial Bus S-VideoParallel devices External monitor 1394 digital devices AC power Maintenance and Service Guide1.2 Clearing a Password 1.3 Power Management Product Description 1.4 Computer External ComponentsMaintenance and Service Guide Figure 1-2. Front and Right Side ComponentsComponent Maintenance and Service GuideFront and Right Side Components Product Description1-14 Figure 1-3. Rear Panel and Left Side ComponentsRear Panel and Left Side Components Product DescriptionProduct Description Maintenance and Service GuideRear Panel and Left Side Components Continued 1-16 Maintenance and Service GuideFigure 1-4. Keyboard Components Product DescriptionFn key Maintenance and Service GuideKeyboard Components Caps lock key1-18 Figure 1-5. Top ComponentsTop Components Product DescriptionProduct Description Maintenance and Service GuideTop Components Continued Product Description Maintenance and Service GuideFigure 1-6. Bottom Components Bottom ComponentsProduct Description Maintenance and Service GuideBottom Components Continued 1.5 Design Overview Using the PhoenixBIOS Setup Utility TroubleshootingTroubleshooting Troubleshooting FlowchartsTroubleshooting Flowcharts Overview Initial Troubleshooting in docking 2.2 No Power, PartPower up in docking station? DoneVisually check for debris in battery socket and clean if necessary 2.3 No Power, PartTroubleshooting Maintenance and Service GuideReplace external AC adapter 2.4 No Power, PartTroubleshooting in computer and at power sourceLoose or 2.5 No Power, PartTroubleshooting Maintenance and Service Guide2.6 No Video, Part Continued from Section No Video, Part Remove 2.7 No Video, PartTroubleshooting Maintenance and Service GuideReseat power 2.8 Nonfunctioning Docking Station if applicableTroubleshooting Maintenance and Service GuideMaintenance and Service Guide 2.9 No Operating System OS LoadingTroubleshooting priority through the setup utility and reboot 2.10 No OS Loading from Hard Drive, PartCheck the setup utility for correct booting order Boot from diskette?2.11 No OS Loading from Hard Drive, Part sectors 2.12 No OS Loading from Hard Drive, PartVirus on hard2.13 No OS Loading from Diskette Drive 2-16 2.14 No OS Loading from CD- or DVD-ROM DriveTroubleshooting bootable discMaintenance and Service Guide 2.15 No Audio, PartTroubleshooting 2-18 2.16 No Audio, PartTroubleshooting Load drivers and set configuration2-19 2.17 Nonfunctioning DeviceTroubleshooting Maintenance and Service Guide2-20 2.18 Nonfunctioning KeyboardTroubleshooting Maintenance and Service Guide2-21 2.19 Nonfunctioning Pointing DeviceTroubleshooting Maintenance and Service Guidereconfigure 2.20 Network or Modem Connection ProblemsTroubleshooting Maintenance and Service Guide3.1 Serial Number Location Illustrated Parts CatalogIllustrated Parts Catalog 3.2 Computer System Major ComponentsMaintenance and Service Guide Figure 3-2. Computer System Major ComponentsKeyboard shield Maintenance and Service GuideSpare Parts Computer System Major Components Illustrated Parts CatalogIllustrated Parts Catalog Maintenance and Service GuideComputer System Major Components continued Illustrated Parts Catalog Maintenance and Service GuideSpare Parts Computer System Major Components Continued Illustrated Parts Catalog Maintenance and Service GuideComputer System Major Components continued Illustrated Parts Catalog Maintenance and Service GuideSpare Parts Computer System Major Components Continued Illustrated Parts Catalog 3.3 Plastics and Hardware Kit ComponentsFigure 3-3 Plastics and Hardware Kit Components Plastics and Hardware Kit Components Spare Part NumberMass Storage Devices 3.4 Mass Storage DevicesMaintenance and Service Guide Figure 3-4. Mass Storage Devices3-10 3.5 MiscellaneousSpare Parts Miscellaneous not illustrated Illustrated Parts CatalogIllustrated Parts Catalog Maintenance and Service GuideSpare Parts Miscellaneous not illustrated Continued 4.1 Tools Required Removal and Replacement PreliminariesPlastic Parts 4.2 Service ConsiderationsCables and Connectors 4.3 Preventing Damage to Removable Drives 4.4 Preventing Electrostatic Damage 4.5 Packaging and Transporting Precautions4.6 Workstation Precautions 4.7 Grounding Equipment and Methods Electrostatic voltage levels and protective materials Removal and Replacement PreliminariesMaintenance and Service Guide Nonconductive plastic bags, tubes, or boxes Metal tote boxesRemoval and Replacement Procedures Figure 5-1. Serial Number Location 5.1 Serial NumberRemoval and Replacement Procedures Maintenance and Service GuideMaintenance and Service Guide 5.2 Disassembly Sequence ChartDisassembly Sequence Chart Removal and Replacement Procedures5.3 Preparing the Computer for Disassembly Figure 5-3. Removing the Hard Drive Figure 5-4. Removing the Hard Drive from the Hard Drive Sleeve Figure 5-5. Removing a Modular Media Bay Device 5.4 Memory Expansion Board 7. The board tilts up at a 45-degree angle Reverse the above procedure to install a memory expansion boardRemoval and Replacement Procedures Maintenance and Service GuideFigure 5-8. Replacing the Computer Feet 5.5 Computer FeetRemoval and Replacement Procedures Maintenance and Service GuideFigure 5-9. Removing the Switch Cover Screws 5.6 Switch CoverRemoval and Replacement Procedures 8. Remove the switch coverReverse the above procedure to install the switch cover Figure 5-10. Removing the Switch CoverKeyboards Spare Part Number Information 5.7 KeyboardRemoval and Replacement Procedures Maintenance and Service Guide5-14 Removal and Replacement ProceduresMaintenance and Service Guide Figure 5-11. Releasing the Keyboard5. Remove the keyboard shield Maintenance and Service Guide 5.8 Fan AssemblyFan Assembly Spare Part Number Information Removal and Replacement Procedures4. Disconnect the fan cable from the system board 1 Figure Removal and Replacement Procedures 5.9 Processora. Switch cover Section b. Keyboard and keyboard shield Section c. Fan assembly Section3. Lift the processor straight up 2 to remove it from its socket Displays Spare Part Number Information 5.10 DisplayRemoval and Replacement Procedures Maintenance and Service Guide7. Remove the hinge covers 9. Position the computer so the front faces you 15. Lift the display straight up to remove it Top Cover Spare Part Number Information 5.11 Top Cover4. Open the parallel and serial connector cover 7. Release the ZIF connector 1 to which the TouchPad cable is attached and disconnect the TouchPad cable 2 from the system board Figure 9. Lift the top cover straight up to remove it Figure Reverse the above procedure to install the top coverRemoval and Replacement Procedures Maintenance and Service GuideSpeaker Assembly Spare Part Number Information 5.12 Speaker Assembly2. Disconnect the speaker cables 1 from the system board Figure Reverse the above procedure to install the speaker assembliesRemoval and Replacement Procedures Maintenance and Service GuideFigure 5-22. Removing the Disk Cell RTC Battery 5.13 Disk Cell RTC BatteryMini PCI Communications Boards Spare Part Number Information 5.14 Mini PCI Communications BoardRemoval and Replacement Procedures Maintenance and Service GuideThe board tilts up at a 45-degree angle Sub I/O Board Spare Part Number Information 5.15 Sub I/O BoardRemoval and Replacement Procedures Maintenance and Service Guide3. Remove the right display support 4. Disconnect the modem/NIC cable 1 from the sub I/O board Figure System Board Spare Part Number Information 5.16 System BoardRemoval and Replacement Procedures Maintenance and Service Guide3. Disconnect the speaker assembly cables 2 from the system board 7. Remove the left display support 9. Press in and hold the PC Card eject button 1 Figure Computer SpecificationsThis chapter provides physical and performance specifications Maintenance and Service GuideVibration SpecificationsComputer Continued Shock14.1-inch XGA, TFT Display SpecificationsMaintenance and Service Guide 13.3-inch XGA, TFT Display SpecificationsHard Drives SpecificationsLogical configuration Maintenance and Service Guide30.0 GB SpecificationsPhysical configuration Hard Drives ContinuedDiskette size SpecificationsMaintenance and Service Guide Diskette DriveCD-ROM Drive SpecificationsDVD-ROM Drive SpecificationsMaintenance and Service Guide 6-10 SpecificationsCD-RW Drive AC Adapter 8-cell, Li ion Battery PackSpecifications Maintenance and Service GuideSystem Function SpecificationsSystem DMA Hardware DMASystem Interrupts SpecificationsMaintenance and Service Guide 6-14 SpecificationsSystem I/O Addresses System I/O Addresses Continued SpecificationsMaintenance and Service Guide 6-16 SpecificationsSystem I/O Addresses Continued System Memory Map SpecificationsMaintenance and Service Guide Table A-1 RJ-45 Network Interface Connector Pin AssignmentsMaintenance and Service Guide Table A-3 Universal Serial Bus Connector Pin AssignmentsTable A-2 RJ-11 Modem Ground Y Connector Pin AssignmentsMaintenance and Service Guide Table A-4 S-VideoTable A-5 Parallel Connector Pin AssignmentsTable A-6 External Monitor Connector Pin AssignmentsMaintenance and Service Guide Table A-8 Microphone Connector Pin AssignmentsTable A-7 Stereo Speaker/Headphone General Requirements Power Cord Set Requirements3-Conductor Power Cord Set Country-Specific Requirements Page Table C-1 Phillips M3 × 8.0 Screw Screw ListingMaintenance and Service Guide Table C-2 Phillips M3.0 × 4.0 Screw Table C-3 Phillips M2.0 × 5.0 Screw Maintenance and Service GuideTable C-3 Phillips M2.0 × 5.0 Screw Continued Table C-3 Phillips M2.0 × 5.0 Screw Continued Maintenance and Service GuideTable C-4 Phillips M2.0 × 9.0 Screw Table C-4 Phillips M2.0 × 9.0 Screw Continued Maintenance and Service GuideTable C-4 Phillips M2.0 × 9.0 Screw Continued Table C-4 Phillips M2.0 × 9.0 Screw Continued Maintenance and Service GuideC-10 Table C-4 Phillips M2.0 × 9.0 Screw ContinuedC-11 Maintenance and Service GuideTable C-5 Phillips M2.0 × 10.5 Screw C-12 Table C-5 Phillips M2.0 × 10.5 Screw ContinuedC-13 Maintenance and Service GuideTable C-6 Phillips M2.0 × 12.0 Screw C-14 Table C-7 Phillips M2.0 × 6.5 ScrewC-15 Maintenance and Service GuideTable C-7 Phillips M2.0 × 6.5 Screw Continued C-16 Table C-7 Phillips M2.0 × 6.5 Screw ContinuedC-17 Maintenance and Service GuideTable C-7 Phillips M2.0 × 6.5 Screw Continued C-18 Table C-8 Phillips M2.0 × 5.0 ScrewC-19 Maintenance and Service GuideIndex Index-2 Page Page

2.18 Nonfunctioning Keyboard

Connect notebook to good external keyboard.

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