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HP nw8440, nx8420 manual 220

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Display Component Recycling

23. Remove the LCD panel.

Removing the LCD Panel

24. Recycle the LCD panel and backlight.

C–14	Maintenance and Service Guide

Contents

Maintenance and Service Guide Page Contents 3 Illustrated Parts Catalog 4 Removal and Replacement Preliminaries 5 Removal and Replacement Procedures Page Product Description 1.1Features Page 1.2 Resetting the Computer 1.3 Power Management 1.4 External Components Front Components (Continued) Right-SideComponents Rear Panel Components Left-SideComponents Left-SideComponents (Continued) Page Standard Keyboard Components Page Top Components Page Page Page Bottom Components 1.5 Design Overview Troubleshooting 2.1Computer Setup Using Computer Setup Selecting from the File Menu Selecting from the Security Menu Selecting from the Advanced Menu Selecting from the Tools Menu 2.2 Troubleshooting Flowcharts Troubleshooting Flowcharts Overview (Continued) Flowchart 2.1—InitialTroubleshooting Flowchart 2.2—NoPower, Part Flowchart 2.3—NoPower, Part Flowchart 2.4—NoPower, Part Flowchart 2.5—NoPower, Part Flowchart 2.6—NoVideo, Part Flowchart 2.7—NoVideo, Part Flowchart 2.8—NonfunctioningDocking Device (if applicable) Flowchart 2.9—NoOperating System (OS) Loading Flowchart 2.10—NoOS Loading, Hard Drive, Part Flowchart 2.11—NoOS Loading, Hard Drive, Part Flowchart 2.12—NoOS Loading, Hard Drive, Part Flowchart 2.13—NoOS Loading, Diskette Drive Flowchart 2.14—NoOS Loading, Optical Drive Flowchart 2.15—NoAudio, Part Flowchart 2.16—NoAudio, Part Flowchart 2.17—NonfunctioningDevice Flowchart 2.18—NonfunctioningKeyboard Flowchart 2.19—NonfunctioningPointing Device Flowchart 2.20—NoNetwork/Modem Connection Illustrated Parts Catalog 3.1 Serial Number Location 3.2 Computer Major Components Spare Parts: Computer Major Components Page Spare Parts: Computer Major Components (Continued) Page Page Page Page Page Page Page Page Page Page 3.3 Plastics Kit Plastics Kit Spare Part Number Information 3.4 Mass Storage Devices Mass Storage Devices 3.5 Miscellaneous (Not Illustrated) Spare Part Information (Continued) 3.6 Sequential Part Number Listing Sequential Part Number Listing (Continued) Page Page Page Page Page Page Page Removal and Replacement Preliminaries 4.1 Tools Required 4.2 Service Considerations Plastic Parts Cables and Connectors 4.3Preventing Damage to Removable Drives 4.4 Preventing Electrostatic Damage 4.5Packaging and Transporting Precautions 4.6 Workstation Precautions 4.7Grounding Equipment and Methods Typical Electrostatic Voltage Levels Static-ShieldingMaterials Removal and Replacement Procedures 5.1 Serial Number 5.2 Disassembly Sequence Chart Disassembly Sequence Chart (Continued) 5.3Preparing the Computer for Disassembly 5.4 Hard Drive Page Page Page 5.5 Computer Feet 5.6 Optical Drive Page 5.7 External Memory Module Page Page 5.8 Bluetooth Module Page 5.9 Keyboard Keyboard Spare Part Number Information (Continued) Page Page Page 5.10 Fan Assembly Page Page Page Page 5.11 Heat Sink Page Page 5.12 Processor Page 5.13 Internal Memory Module Page 5.14 RTC Battery 5.15 TouchPad Page Page 5.16 Mini Card Module Spare Part Number Information (Continued) Page 5.17 Switch Cover Page Page 5.18 Display Assembly Page Page Page 5.19 Top Cover Page Page Page 5.20 Modem Module Page 5.21 System Board Page Page Page Page Page Page 5.22 System Board Frame Page Page 5.23 Serial Connector Module Page 5.24 USB/Audio Board Page Specifications Computer (Continued) 15.4-inch,WUXGA+WVA 15.4-inch,WSXGA+WVA 15.4-inch,WXGA+WVA Hard Drives DVD±RW and CD-RW Double-LayerCombo Drive DVD±RW and CD-RW Double-LayerCombo Drive (Continued) DVD/CD-RWCombo Drive DVD/CD-RWCombo Drive (Continued) DVD-ROMDrive System DMA System Interrupts System Interrupts (Continued) System I/O Addresses System I/O Addresses (Continued) Page System Memory Map Screw Listing Table A-1 Phillips PM3.0×3.0 Screw Table A-2 Phillips PM2.0×5.0 Captive Screw Table A-3 Phillips PM2.5×13.0 Captive Spring-LoadedScrew Table A-4 Torx8 T8M2.5×4.0 Screw Torx8 T8M2.5×4.0 Screw (Continued) Page Page Table A-5 Phillips PM2.0×3.0 Screw Phillips PM2.0×3.0 Screw (Continued) Table A-6 Phillips PM1.5×3.0 Screw Table A-7 Torx8 T8M2.5×10.0 Screw Torx8 T8M2.5×10.0 Screw (Continued) Page Table A-8 Phillips PM2.5×7.0 Captive Screw Table A-9 Phillips PM2.0×8.0 Captive Screw Table A-10 Phillips PM2.0×4.0 Screw Table A-11 Phillips PM2.0×2.0 Screw Phillips PM2.0×2.0 Screw (Continued) Table A-12 Phillips PM2.5×4.0 Screw Table A-13 Hex HM5.0×12.0 Screw Lock Table A-14 Torx8 T8M2.5×6.0 Screw Software Backup and Recovery Backup Safeguarding Your Data Backing Up the System Backing Up Specific Files or Folders Backing Up the Entire Hard Drive Backing Up Modifications Made to the System Scheduling Backups Recovery Creating Recovery Discs (Highly Recommended) Performing a Recovery Performing a Recovery from the Recovery Discs Performing a Recovery from the Hard Drive Display Component Recycling Page Page Page Page Page Page Page Page Page Page Page Page Page Connector Pin Assignments Table D-2 Audio-In(Microphone) Table D-3 Universal Serial Bus Table D-4 S-Video-Out Table D-5 External Monitor Table D-6 RJ-11(Modem) Table D-7 RJ-45(Network) Power Cord Set Requirements 3-ConductorPower Cord Set General Requirements Country-SpecificRequirements 3-ConductorPower Cord Set Requirements (Continued) Index

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