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Compaq N160 manual 22. Removing the Disk Cell RTC Battery

Models: N160

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5.13Disk Cell RTC Battery

Removal and Replacement Procedures

5.13Disk Cell RTC Battery

✎The disk cell RTC battery is included in the Plastics and Hardware Kit (spare part number 251365-001).

1.Prepare the computer for disassembly (Section 5.3) and remove the following components:

a.Switch cover (Section 5.6)

b.Keyboard and keyboard shield (Section 5.7)

c.Display (Section 5.10)

d.Top cover (Sevtion 5-11)

2.Lift up the back edge of the RTC battery and remove it from its socket on the system board (Figure 5-22).

Figure 5-22. Removing the Disk Cell RTC Battery

Reverse the above procedure to install the disk cell RTC battery.

5–30	Maintenance and Service Guide

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Compaq N160 manual 22. Removing the Disk Cell RTC Battery

Contents

Maintenance and Service Guide OctoberCompaq Notebook Evo N160 Series Document Part NumberDocument Part Number Maintenance and Service Guide First Edition October2 Troubleshooting Contents1 Product Description 5 Removal and Replacement Procedures 4 Removal and Replacement Preliminaries3 Illustrated Parts Catalog ContentsB Power Cord Set Requirements 6 Specifications A Connector Pin AssignmentsScrew Listing Index Figure 1-1. Compaq Notebook Evo N160 Product DescriptionComputer models are shown in Table1-1 ModelsCompaq Notebook Evo N160 Models and Model Naming Conventions Product DescriptionCompaq Notebook Evo N160 Maintenance and Service GuideModels and Model Naming Conventions Continued Product DescriptionModels and Model Naming Conventions Continued Compaq Notebook Evo N160Product Description Compaq Notebook Evo N160 Maintenance and Service GuideModels and Model Naming Conventions Continued Product DescriptionModels and Model Naming Conventions Continued Compaq Notebook Evo N160Product Description Compaq Notebook Evo N160 Maintenance and Service GuideModels and Model Naming Conventions Continued Product Description1.1 Features Parallel devices External monitor 1394 digital devices AC power Connectors for RJ-45 network RJ-11 modem Universal Serial Bus S-VideoMaintenance and Service Guide Stereo line out/headphone Mono microphone QuickDock Port Replicator1.2 Clearing a Password 1.3 Power Management Maintenance and Service Guide 1.4 Computer External ComponentsFigure 1-2. Front and Right Side Components Product DescriptionFront and Right Side Components Maintenance and Service GuideProduct Description ComponentRear Panel and Left Side Components Figure 1-3. Rear Panel and Left Side ComponentsProduct Description 1-14Rear Panel and Left Side Components Continued Maintenance and Service GuideProduct Description Figure 1-4. Keyboard Components Maintenance and Service GuideProduct Description 1-16Keyboard Components Maintenance and Service GuideCaps lock key Fn keyTop Components Figure 1-5. Top ComponentsProduct Description 1-18Top Components Continued Maintenance and Service GuideProduct Description Figure 1-6. Bottom Components Maintenance and Service GuideBottom Components Product DescriptionBottom Components Continued Maintenance and Service GuideProduct Description 1.5 Design Overview Using the PhoenixBIOS Setup Utility TroubleshootingTroubleshooting Flowcharts Overview Troubleshooting FlowchartsTroubleshooting Initial Troubleshooting Power up in docking station? 2.2 No Power, PartDone in dockingTroubleshooting 2.3 No Power, PartMaintenance and Service Guide Visually check for debris in battery socket and clean if necessaryTroubleshooting 2.4 No Power, Partin computer and at power source Replace external AC adapterTroubleshooting 2.5 No Power, PartMaintenance and Service Guide Loose or2.6 No Video, Part Troubleshooting 2.7 No Video, PartMaintenance and Service Guide Continued from Section No Video, Part RemoveTroubleshooting 2.8 Nonfunctioning Docking Station if applicableMaintenance and Service Guide Reseat powerTroubleshooting 2.9 No Operating System OS LoadingMaintenance and Service Guide Check the setup utility for correct booting order 2.10 No OS Loading from Hard Drive, PartBoot from diskette? priority through the setup utility and reboot2.11 No OS Loading from Hard Drive, Part Virus 2.12 No OS Loading from Hard Drive, Parton hard sectors2.13 No OS Loading from Diskette Drive Troubleshooting 2.14 No OS Loading from CD- or DVD-ROM Drivebootable disc 2-16Troubleshooting 2.15 No Audio, PartMaintenance and Service Guide Troubleshooting 2.16 No Audio, PartLoad drivers and set configuration 2-18Troubleshooting 2.17 Nonfunctioning DeviceMaintenance and Service Guide 2-19Troubleshooting 2.18 Nonfunctioning KeyboardMaintenance and Service Guide 2-20Troubleshooting 2.19 Nonfunctioning Pointing DeviceMaintenance and Service Guide 2-21Troubleshooting 2.20 Network or Modem Connection ProblemsMaintenance and Service Guide reconfigure3.1 Serial Number Location Illustrated Parts CatalogMaintenance and Service Guide 3.2 Computer System Major ComponentsFigure 3-2. Computer System Major Components Illustrated Parts CatalogSpare Parts Computer System Major Components Maintenance and Service GuideIllustrated Parts Catalog Keyboard shieldComputer System Major Components continued Maintenance and Service GuideIllustrated Parts Catalog Spare Parts Computer System Major Components Continued Maintenance and Service GuideIllustrated Parts Catalog Computer System Major Components continued Maintenance and Service GuideIllustrated Parts Catalog Spare Parts Computer System Major Components Continued Maintenance and Service GuideIllustrated Parts Catalog Figure 3-3 Plastics and Hardware Kit Components 3.3 Plastics and Hardware Kit ComponentsPlastics and Hardware Kit Components Spare Part Number Illustrated Parts CatalogMaintenance and Service Guide 3.4 Mass Storage DevicesFigure 3-4. Mass Storage Devices Mass Storage DevicesSpare Parts Miscellaneous not illustrated 3.5 MiscellaneousIllustrated Parts Catalog 3-10Spare Parts Miscellaneous not illustrated Continued Maintenance and Service GuideIllustrated Parts Catalog 4.1 Tools Required Removal and Replacement PreliminariesCables and Connectors 4.2 Service ConsiderationsPlastic Parts 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 Maintenance and Service Guide Removal and Replacement PreliminariesNonconductive plastic bags, tubes, or boxes Metal tote boxes Electrostatic voltage levels and protective materialsRemoval and Replacement Procedures Removal and Replacement Procedures 5.1 Serial NumberMaintenance and Service Guide Figure 5-1. Serial Number LocationDisassembly Sequence Chart 5.2 Disassembly Sequence ChartRemoval and Replacement Procedures Maintenance and Service Guide5.3 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 Removal and Replacement Procedures Reverse the above procedure to install a memory expansion boardMaintenance and Service Guide 7. The board tilts up at a 45-degree angleRemoval and Replacement Procedures 5.5 Computer FeetMaintenance and Service Guide Figure 5-8. Replacing the Computer FeetFigure 5-9. Removing the Switch Cover Screws 5.6 Switch CoverReverse the above procedure to install the switch cover 8. Remove the switch coverFigure 5-10. Removing the Switch Cover Removal and Replacement ProceduresRemoval and Replacement Procedures 5.7 KeyboardMaintenance and Service Guide Keyboards Spare Part Number InformationMaintenance and Service Guide Removal and Replacement ProceduresFigure 5-11. Releasing the Keyboard 5-145. Remove the keyboard shield Fan Assembly Spare Part Number Information 5.8 Fan AssemblyRemoval and Replacement Procedures Maintenance and Service Guide4. Disconnect the fan cable from the system board 1 Figure a. Switch cover Section b. Keyboard and keyboard shield Section 5.9 Processorc. Fan assembly Section Removal and Replacement Procedures3. Lift the processor straight up 2 to remove it from its socket Removal and Replacement Procedures 5.10 DisplayMaintenance and Service Guide Displays Spare Part Number Information7. 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 Removal and Replacement Procedures Reverse the above procedure to install the top coverMaintenance and Service Guide 9. Lift the top cover straight up to remove it FigureSpeaker Assembly Spare Part Number Information 5.12 Speaker AssemblyRemoval and Replacement Procedures Reverse the above procedure to install the speaker assembliesMaintenance and Service Guide 2. Disconnect the speaker cables 1 from the system board FigureFigure 5-22. Removing the Disk Cell RTC Battery 5.13 Disk Cell RTC BatteryRemoval and Replacement Procedures 5.14 Mini PCI Communications BoardMaintenance and Service Guide Mini PCI Communications Boards Spare Part Number InformationThe board tilts up at a 45-degree angle Removal and Replacement Procedures 5.15 Sub I/O BoardMaintenance and Service Guide Sub I/O Board Spare Part Number Information3. Remove the right display support 4. Disconnect the modem/NIC cable 1 from the sub I/O board Figure Removal and Replacement Procedures 5.16 System BoardMaintenance and Service Guide System Board Spare Part Number Information3. 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 This chapter provides physical and performance specifications SpecificationsMaintenance and Service Guide ComputerComputer Continued SpecificationsShock VibrationMaintenance and Service Guide Specifications14.1-inch XGA, TFT Display 13.3-inch XGA, TFT Display SpecificationsLogical configuration SpecificationsMaintenance and Service Guide Hard DrivesPhysical configuration SpecificationsHard Drives Continued 30.0 GBMaintenance and Service Guide SpecificationsDiskette Drive Diskette sizeCD-ROM Drive SpecificationsMaintenance and Service Guide SpecificationsDVD-ROM Drive CD-RW Drive Specifications6-10 Specifications 8-cell, Li ion Battery PackMaintenance and Service Guide AC AdapterSystem DMA SpecificationsHardware DMA System FunctionMaintenance and Service Guide SpecificationsSystem Interrupts System I/O Addresses Specifications6-14 Maintenance and Service Guide SpecificationsSystem I/O Addresses Continued System I/O Addresses Continued Specifications6-16 Maintenance and Service Guide SpecificationsSystem Memory Map Maintenance and Service Guide Connector Pin AssignmentsTable A-1 RJ-45 Network Interface Table A-2 RJ-11 Modem Connector Pin AssignmentsTable A-3 Universal Serial Bus Maintenance and Service Guide Connector Pin AssignmentsTable A-4 S-Video Ground YTable A-5 Parallel Connector Pin AssignmentsMaintenance and Service Guide Connector Pin AssignmentsTable A-6 External Monitor Table A-7 Stereo Speaker/Headphone Connector Pin AssignmentsTable A-8 Microphone 3-Conductor Power Cord Set Power Cord Set RequirementsGeneral Requirements Country-Specific Requirements Page Maintenance and Service Guide Screw ListingTable C-1 Phillips M3 × 8.0 Screw 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 ContinuedTable C-5 Phillips M2.0 × 10.5 Screw Maintenance and Service GuideC-11 C-12 Table C-5 Phillips M2.0 × 10.5 Screw ContinuedTable C-6 Phillips M2.0 × 12.0 Screw Maintenance and Service GuideC-13 C-14 Table C-7 Phillips M2.0 × 6.5 ScrewTable C-7 Phillips M2.0 × 6.5 Screw Continued Maintenance and Service GuideC-15 C-16 Table C-7 Phillips M2.0 × 6.5 Screw ContinuedTable C-7 Phillips M2.0 × 6.5 Screw Continued Maintenance and Service GuideC-17 C-18 Table C-8 Phillips M2.0 × 5.0 ScrewC-19 Maintenance and Service GuideIndex Index-2 Page Page