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HP nx8420, nw8440 manual Computer Major Components

Models: nx8420 nw8440

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Troubleshooting Flowchart No Power Part Bluetooth Pin Signal Dimension Maintenance Resetting the Computer Access time Serial Connector Module Fan assembly

Page 54

Illustrated Parts Catalog

3.2 Computer Major Components

Computer Major Components

3–2	Maintenance and Service Guide

Page 53 Page 55

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HP nx8420, nw8440 manual Computer Major Components

Page 53 Page 55

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Contents

Maintenance and Service Guide Page Contents Illustrated Parts Catalog Removal and Replacement Procedures Contents Product Description Features Product Description Resetting the Computer Power Management External Components Front Components Front Components Right-Side Components Rear Panel Components Left-Side Components Left-Side Components Standard Keyboard Components Standard Keyboard Components Fn key Top Components, Part Top Components Top Components, Part Top Components Bottom Components Bottom Components Design Overview Troubleshooting Computer Setup File Menu Select To Do This Selecting from the Security Menu Security Menu Selecting from the Advanced Menu Advanced Menu Troubleshooting Flowcharts Troubleshooting Flowcharts Overview Flowchart 2.14-No OS Loading, Optical Drive Flowchart 2.1-Initial Troubleshooting Flowchart No Power Part Flowchart 2.2-No Power, Part Flowchart 2.3-No Power, Part Flowchart 2.4-No Power, Part External Flowchart 2.5-No Power, Part Flowchart 2.6-No Video, Part Flowchart 2.7-No Video, Part Flowchart No Video Part Flowchart 2.8-Nonfunctioning Docking Device if applicable Flowchart 2.9-No Operating System OS Loading Go to Flowchart 2.13-No OS Loading Diskette Drive Flowchart 2.10-No OS Loading, Hard Drive, Part Loading Flowchart 2.11-No OS Loading, Hard Drive, Part Flowchart No OS Loading Hard Drive, Part Flowchart 2.12-No OS Loading, Hard Drive, Part Flowchart 2.13-No OS Loading, Diskette Drive Flowchart 2.14-No OS Loading, Optical Drive Flowchart 2.15-No Audio, Part Flowchart 2.16-No Audio, Part Flowchart 2.17-Nonfunctioning Device Cmos Flowchart 2.18-Nonfunctioning Keyboard Flowchart 2.19-Nonfunctioning Pointing Device Pointing device Not operating Properly Connect computer Flowchart 2.20-No Network/Modem Connection Illustrated Parts Catalog Serial Number Location Computer Major Components Spare Parts Computer Major Components Item Description NumberKeyboards Computer Major Components Keyboards TouchPads Computer Major Components Description Number Fan assemblySpare Part Fingerprint reader board with cable not illustrated Computer Major Components Item Description Number Mini Card modules Computer Major Components 407575-002 Computer Major Components Modem module Serial connector module and cableMemory modules, 1-DIMM System board frame Computer Major Components Spare Parts Computer Major Components Plastics Kit Plastics Kit Spare Part Number Information Item Description Number Plastics Kit 417527-001 Includes Mass Storage Devices Mass Storage Devices Spare Part Number Information Optical drives include bezel Miscellaneous Not Illustrated Miscellaneous Not Illustrated Spare Part Information Description Number Power cords Appendix A, Screw Listing, for more information on Sequential Part Number Listing Sequential Part Number ListingSpare Part Number Description Venezuela United Sequential Part Number Listing Sequential Part Number Listing Sequential Part Number Listing Sequential Part Number Listing Sequential Part Number Listing Sequential Part Number Listing Removal and Replacement Preliminaries Tools Required Service Considerations Plastic Parts Preventing Damage to Removable Drives Preventing Electrostatic Damage Packaging and Transporting Precautions Workstation Precautions Use the following grounding precautions at workstations Grounding Equipment and Methods Relative Humidity Event 10% 40% 55% Typical Electrostatic Voltage LevelsStatic-Shielding Materials Material Use Voltage Protection Level Removal and Replacement Procedures Serial Number Disassembly Sequence Chart Disassembly Sequence Chart# of Screws Removed Top Cover Preparing the Computer for Disassembly Battery Spare Part Number Information Hard Drive Hard Drive Spare Part Number Information Removing the Hard Drive Cover Removing the Hard Drive Removing the Hard Drive Frame Computer Feet Optical Drive Optical Drive Spare Part Number Information Removing the Optical Drive Bracket External Memory Module Memory Module Spare Part Number Information Removing the Memory Module Compartment Cover Removing the External Memory Module Bluetooth Module Bluetooth Module Spare Part Number Information Reverse the above procedure to install a Bluetooth module Keyboard Keyboard Spare Part Number Information Keyboard Spare Part Number Information Removing the Keyboard Screws Releasing the Keyboard Disconnecting the Keyboard and Pointing Stick Cables Fan Assembly Fan Assembly Spare Part Number Information Removing the Fan Assembly Replacing the Thermal Paste Removing the Thermal Plate Replacing the Thermal Paste Heat Sink Heat Sink Spare Part Number Information Removing the Heat Sink Reverse the above procedure to install the heat sink Processor Processor Spare Part Number Information Reverse the above procedure to install the processor Internal Memory Module Removing the Internal Memory Module RTC Battery TouchPad TouchPad Spare Part Number Information Releasing the TouchPad Reverse the above procedure to install the TouchPad Mini Card Module Mini Card Module Spare Part Number Information Mini Card Module Spare Part Number Information Reverse the above procedure to install a Mini Card module Switch Cover Switch Cover Spare Part Number Information Releasing the Switch Cover Reverse the above procedure to install the switch cover Display Assembly Display Assembly Spare Part Number Information Disconnecting the Wireless Antenna and Display Cables Removing the Display Assembly Screws Reverse the above procedure to install the display assembly Top Cover Top Cover Spare Part Number Information Removing the Top Cover Screws, Part Removing the Top Cover Screws, Part Reverse the above procedure to install the top cover Modem Module Modem Module Spare Part Number Information Reverse the above procedure to install the modem module System Board System Board Spare Part Number Information TouchPad Section Disconnecting the System Board Cables Removing the System Board Screws and Screw Locks Releasing the System Board, Part Releasing the System Board, Part Reverse the above procedure to install the system board System Board Frame System Board Frame Spare Part Number Information Remove the System Board Frame Removing the Modem Cable Serial Connector Module Serial Connector Module Spare Part Number Information Removing the Serial Connector Module and Cable 24 USB/Audio Board USB/Audio Board Spare Part Number Information Reverse the above procedure to install the USB/audio board Input Power Dimensions MetricWeight Temperature Shock Relative humidity noncondensingMaximum altitude unpressurized Random Vibration Inch, WUXGA+WVA Inch, WSXGA+WVA Inch, WXGA+WVA Hard Drives Center hole diameter DVD±RW and CD-RW Double-Layer Combo DriveApplicable disc Read Write Disc diameter Track pitch Access timeDisc thickness Audio output level DVD/CD-RW Combo Drive Random 110 ms 130 ms Full stroke 210 ms 225 ms DVD-ROM Drive Applicable discCache buffer System DMA Hardware DMA System Function System Interrupts Hardware IRQ System Function IRQ12 System I/O Addresses Address hex 16F Unused VGA System Memory Map Size Memory Address System Function Screw Listing Color Qty Length Thread Width Black Where used Table A-1 Phillips PM3.0×3.0 ScrewHead Table A-2 Phillips PM2.0×5.0 Captive Screw Head Color Qty. Length Thread Width Color Qty Length Thread Width Silver 13.0 mm Where used Table A-3 Phillips PM2.5×13.0 Captive Spring-Loaded Screw Table A-4 Torx8 T8M2.5×4.0 Screw Torx8 T8M2.5×4.0 Screw Locations Table A-4 Torx8 T8M2.5×4.0 Screw Table A-4 Torx8 T8M2.5×4.0 Screw Color Qty Length Thread Width Silver Where used Table A-5 Phillips PM2.0×3.0 Screw Phillips PM2.0×3.0 Captive Screw Locations Table A-6 Phillips PM1.5×3.0 Screw Color Qty Length Thread Width Black 10.0 mm Where used Table A-7 Torx8 T8M2.5×10.0 Screw Table A-7 Torx8 T8M2.5×10.0 Screw Table A-7 Torx8 T8M2.5×10.0 Screw 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 Table A-11 Phillips PM2.0×2.0 Screw Table A-12 Phillips PM2.5×4.0 Screw Color Qty Length Thread Width Silver 12.0 mm Where used Table A-13 Hex HM5.0×12.0 Screw Lock Table A-14 Torx8 T8M2.5×6.0 Screw Software Backup Recovery Backup Backing Up the System Backing Up Specific Files or Folders Backing Up the Entire Hard Drive Backing Up Modifications Made to the System Recovery Scheduling Backups Creating Recovery Discs Highly Recommended Performing a Recovery Performing a Recovery from the Recovery Discs Performing a Recovery from the Hard Drive Initiating a Recovery in Windows Display Component Recycling Display Component Recycling Removing the Display Bezel Screw Covers and Screws Removing the Display Bezel Removing the Display Inverter Removing the Display Panel Assembly Removing the Display Panel Frame s Removing the Display Frame Removing the Backlight Cover Releasing the Backlight Cables Removing the Backlight Frame Slide the backlight out of the backlight frame Releasing the LCD Panel Remove the LCD panel Pin Signal Table D-1 Audio-Out Headphone Table D-2 Audio-In Microphone Table D-3 Universal Serial Bus Table D-4 Video-Out TV-CD Table D-5 External Monitor Table D-6 RJ-11 Modem Table D-7 RJ-45 Network Power Cord Set Requirements Conductor Power Cord Set General Requirements Conductor Power Cord Set Requirements Country-Specific RequirementsCountry/Region Accredited Agency Applicable Note Number Kema Index Index Index-3 Index-4 Troubleshooting 2-14,2-23num lock key Index-6 Index-7

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