Compaq N410c manual Real Time Clock RTC Battery, Removing the RTC Battery

Page 111

Removal and Replacement Procedures

5.10Real Time Clock (RTC) Battery

The RTC battery is included in the Miscellaneous Plastics Kit (spare part number 231454-001).

1.Prepare the notebook for disassembly (Section 5.3).

2.Remove the palm rest (Section 5.5).

3.Remove the keyboard (Section 5.9).

4.Disconnect the RTC battery cable from the system board 1 (Figure 5-20).

5.Remove the RTC battery 2.

Figure 5-20. Removing the RTC Battery

Reverse the above procedure to install the RTC battery.

5–26

Maintenance and Service Guide

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Contents Maintenance and Service Guide Page Contents Removal and Replacement Preliminaries Removal and Replacement ProceduresIllustrated Parts Catalog Screw Listing Index Product Description Models KeyKey Description Options Compaq Evo Notebook N410c Models Nafta N410c 120 Asia Pacific 470037-758 N410c 100 Asia Pacific 470040-136 N410c 100 Asia Pacific 470040-177 Compaq Evo Notebook N410c Models Compaq Evo Notebook N400c Models 470013-752 470013-750 Features Clearing a Password Power Management Computer External Components Front Panel ComponentsComponent Function Right Side Components Right Side ComponentsConnects the modem cable to an Left Side Components Left Side Components Keyboard Components Keyboard Components TouchPad ModelKeyboard Components Keyboard Components Fn key Bottom Components Bottom Components Rear Panel Components Rear Panel ComponentsDesign Overview Computer Setup Diagnostics Utilities TroubleshootingUsing Computer Setup Select To Do This File MenuSecurity Menu Selecting from the Security MenuAdvanced Menu Selecting from the Advanced MenuAdvanced Menu Obtaining, Saving, or Printing Configuration Information Using Compaq DiagnosticsObtaining, Saving, or Printing Diagnostic Test Information Maintenance and Service Guide Troubleshooting Flowcharts Troubleshooting Flowcharts OverviewFlowchart Description All drives Flowchart 2.1 Initial TroubleshootingFlowchart 2.2 No Power, Part Flowchart 2.3 No Power, Part Internal Flowchart 2.4 No Power, PartFlowchart 2.5 No Power, Part Flowchart 2.6 No Video, Part From Flowchart No Video, Part Remove Flowchart 2.7 No Video, PartBackplane board Switch box Flowchart 2.8 Nonfunctioning Docking Station if applicableNo OS Loading Flowchart 2.9 No Operating System OS LoadingCD? Flowchart 2.10 No OS Loading from Hard Drive, PartFlowchart 2.11 No OS Loading from Hard Drive, Part Flowchart 2.12 No OS Loading from Hard Drive, Part Flowchart 2.13 No OS Loading from Diskette Drive Flowchart 2.14 No OS Loading from CD- or DVD-ROM Drive Undock Flowchart 2.15 No Audio, PartFlowchart 2.16 No Audio, Part Nonfunctioning Device Reseat Flowchart 2.17 Nonfunctioning DeviceFlowchart 2.18 Nonfunctioning Keyboard Flowchart 2.19 Nonfunctioning Pointing Device Flowchart 2.20 No Network or Modem Connection Serial Number Location Illustrated Parts CatalogComputer System Major Components Computer System Major ComponentsPalm rests Computer System Major ComponentsDescription Number Displays Miscellaneous Plastics KitComputer System Major Components Keyboard with pointing stick for use only with Computer System Major Components Description Number Switch cover 231453-001 Hard drives Spare PartBase enclosures Computer System Major Components Battery packs Description Number Modem cablesMini PCI communication boards Miscellaneous Plastics Kit Components Miscellaneous Plastics Kit ComponentsMiscellaneous Plastics Kit Components Spare Part Number Mass Storage Devices Mass Storage DevicesOptical drives Mass Storage DevicesDescription Number Hard drives External diskette driveMiscellaneous Spare Parts not illustrated Miscellaneous Spare PartsDescription Number Mobile Expansion Units RJ-11 P55 adapters Description Number ModemsModem adapters Modem cableTools Required Removal and Replacement PreliminariesPlastic Parts Service ConsiderationsPreventing Damage to Removable Drives Preventing Electrostatic Damage Packaging and Transporting PrecautionsWorkstation Precautions Grounding Equipment and Methods Material Use Voltage Protection Level Typical Electrostatic Voltage LevelsStatic-Shielding Materials Relative Humidity Event 10% 40% 55%Serial Number Removal and Replacement ProceduresSection Description Removed Disassembly Sequence ChartDisassembly Sequence Chart # of ScrewsPreparing the Notebook for Disassembly Removing the Primary Battery Pack Removing the Optional External Battery Pack Replacing the Computer Feet Computer FeetPalm Rest Spare Part Number Information Palm RestRemoving the Palm Rest Screws Releasing the Palm Rest Releasing the Palm Rest Releasing the Palm Rest Removal and Replacement Procedures 10. Disconnecting the Pointing Stick Button Cable Memory Expansion Board 11. Routing the RTC Battery and TouchPad Cables12. Removing the Memory Expansion Compartment Cover 13. Removing a Memory Expansion Board 14. Removing a Memory Expansion Board Hard Drive Hard DriveReverse the above procedure to install the hard drive Mini PCI Communications Board Spare Part Number Information Mini PCI Communications BoardReverse the above procedure to install the modem/NIC board Keyboard Spare Part Number Information Keyboard17. Removing the Keyboard Screws 18. Releasing the Keyboard Reverse the above procedure to install the keyboard 20. Removing the RTC Battery Real Time Clock RTC BatterySwitch Cover Spare Part Number Information Switch CoverReverse the above procedure to install the switch cover Display Spare Part Number Information Display23. Removing the Display Maintenance and Service Guide Modem Cable Spare Part Number Information Modem Cable25. Removing the Right Display Support 26. Removing the Modem Cable on Evo Notebook N410c Models 27. Removing the Modem Cable on Evo Notebook N410c Models Reverse the above procedure to install the modem cable System Board Spare Part Number Information System Board29. Removing the Center Display Support 30. Removing the System Board Screw 31. Removing the System Board Screws and Screwlocks Maintenance and Service Guide Removal and Replacement Procedures Maintenance and Service Guide Reverse the above procedure to install the system board 36. Installing the System Board Removal and Replacement Procedures Computer Relative humidity ShockVibration Inch XGA, TFT Display Inch SVGA, TFT Display Hard Drives Speed Transfer rate 40 GB 30 GB 20 GB Physical configurationBuffer size3 Disk rotationalDiskette Drive CD-ROM Drive DVD-ROM Drive Track pitchAudio output level Battery Packs EnergyEnvironmental requirements Hardware DMA System Function Power supply inputAC Adapter System DMAHardware IRQ System Function System InterruptsSystem I/O Addresses 16F Unused VGA Size Memory Address System Function System Memory MapTable A-1 Parallel Pin SignalPin Signal Audio out Table A-2 SerialTable A-3 Stereo Speaker/Headphone Pin Signal Audio Table A-4 MicrophoneTable A-5 Universal Serial Bus Table A-7 RJ-11 Modem Table A-6 RJ-45 Network InterfaceTable A-8 External Monitor Conductor Power Cord Set Power Cord Set RequirementsConductor Power Cord Set Requirements Country-Specific RequirementsCountry Accredited Agency Applicable Note Number BSI Screw Listing Color Qty Length Thread Width Silver Where used Table C-1 Phillips P0 Metric 2.0 × 3.0 ScrewHead Table C-2 Torx T8 Metric 2.0 × 6.0 Screw Color Qty Length Thread Width Black Where usedFigure C-3. TM2.0 × 6.0 Screw Locations Figure C-4. TM2.0 × 6.0 Screw Locations Head Color Qty Length Thread Width Table C-3 Phillips P0 Metric 2.0 × 5.0 ScrewFigure C-6. TM2.0 × 4.0 Screw Location Table C-4 Phillips P0 Metric 2.0 × 4.0 ScrewFigure C-7. TM2.0 × 4.0 Screw Location Figure C-8. PM2.0 × 7.0 Barrel Screw Location Table C-5 Phillips P0 Metric 2.0 × 7.0 Barrel ScrewFigure C-9. TM2.0 × 4.0 Screw Locations Table C-5 Torx T8 Metric 2.0 × 4.0 ScrewFigure C-10. HM5.0 × 9.5 Screwlock Locations Table C-6 Mm × 9.5 ScrewlockIndex Index-2 Index-3 Index-4 Index-5 Index-6
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N410c specifications

The Compaq N410c is a versatile and reliable laptop that was part of the Compaq Presario line, designed primarily for the budget-conscious consumer who sought functionality without compromising performance. Launched in the early 2000s, the N410c captured attention for its blend of essential features and portable design, making it suitable for both students and professionals alike.

At the core of the Compaq N410c is its durable build quality, which meets the needs of users who require a robust device for daily use. Weighing in at around 5.5 pounds, it offered a good balance between portability and performance. The 14.1-inch TFT display provided decent brightness and clarity, ensuring effective viewing for various tasks, whether it was for school projects, business presentations, or simple web browsing.

Equipped with a Pentium 4 processor, the N410c delivered adequate processing power for typical applications of its time. It supported up to 512 MB of RAM, which, though modest by contemporary standards, was sufficient for basic multitasking and running essential software. Additionally, the laptop featured a hard drive capacity of up to 60 GB, providing ample space for documents, media, and applications.

Connectivity options on the Compaq N410c included integrated Ethernet and a 56K modem, which catered to users in both home and office environments. The presence of USB ports allowed for easy connections with peripherals such as printers, external drives, and mice, enhancing the user experience.

In terms of software, the Compaq N410c typically shipped with Windows XP, an operating system known for its user-friendly interface and support for a wide range of applications. Users appreciated the laptop's compatibility with various productivity tools, which made it an attractive choice for everyday tasks.

Overall, the Compaq N410c combined practical features with reasonable performance, securing its place as a popular model among budget-friendly laptops of its era. While it may not possess the cutting-edge technologies of modern devices, its emphasis on durability, functionality, and user experience made it a respected option during its heyday, particularly for those who required a solid workhorse for everyday computing needs.