Compaq nx9420 - Notebook PC Specifications

Maintenance and Service GuideHP Compaq nw9440 Notebook PCHP Compaq nx9420 Notebook PCDocument Part Number: 412725-003May 2007This guide is a troublesh

1–4 Maintenance and Service GuideProduct Description1.2 Resetting the ComputerIf the computer you are servicing has an unknown password, follow these

4–8 Maintenance and Service GuideRemoval and Replacement PreliminariesTable 4-1 shows how humidity affects the electrostatic voltage levels generated

Maintenance and Service Guide 5–15Removal and ReplacementProceduresThis chapter provides removal and replacement procedures.There are as many as 101 s

5–2 Maintenance and Service GuideRemoval and Replacement Procedures5.2 Disassembly Sequence ChartUse the chart below to determine the section number t

Removal and Replacement ProceduresMaintenance and Service Guide 5–3Section Description# of Screws Removed5.10 Optical Drive 1 to remove the optical dr

5–4 Maintenance and Service GuideRemoval and Replacement Procedures5.3 Preparing the Computer for DisassemblyBefore you begin any removal or installat

Removal and Replacement ProceduresMaintenance and Service Guide 5–5b. Slide and hold the battery pack locking latch 1 to the right. (The battery pack

5–6 Maintenance and Service GuideRemoval and Replacement Procedures5.4 Hard Drive1. Prepare the computer for disassembly (refer to Section 5.3).2. Pos

Removal and Replacement ProceduresMaintenance and Service Guide 5–73. Loosen the two Phillips PM2.5×17.0 screws 1 that secure the hard drive cover to

5–8 Maintenance and Service GuideRemoval and Replacement Procedures6. Loosen the Phillips PM2.5×13.0 spring-loaded hard drive retention screw 1.7. Gra

Removal and Replacement ProceduresMaintenance and Service Guide 5–99. Remove the four Phillips PM3.0×3.0 hard drive frame screws 1 from each side of t

Product DescriptionMaintenance and Service Guide 1–51.3 Power ManagementThe computer comes with power management features that extend battery operatin

5–10 Maintenance and Service GuideRemoval and Replacement Procedures5.5 Computer FeetThe computer feet are adhesive-backed rubber pads. The feet are i

Removal and Replacement ProceduresMaintenance and Service Guide 5–115.6 Bluetooth Module1. Prepare the computer for disassembly (refer to Section 5.3)

5–12 Maintenance and Service GuideRemoval and Replacement Procedures5.7 External Memory Module1. Prepare the computer for disassembly (refer to Sectio

Removal and Replacement ProceduresMaintenance and Service Guide 5–136. Spread the retaining tabs 1 on each side of the memory module socket to release

5–14 Maintenance and Service GuideRemoval and Replacement Procedures5.8 Mini Card ModuleMini Card ModuleSpare Part Number Information 802.11b/g HS WLA

Removal and Replacement ProceduresMaintenance and Service Guide 5–151. Prepare the computer for disassembly (Section 5.3).802.11a/b/g GL WLAN module f

5–16 Maintenance and Service GuideRemoval and Replacement Procedures2. Remove the memory/Mini Card module compartment cover (Section 5.7).3. Before di

Removal and Replacement ProceduresMaintenance and Service Guide 5–175.9 RTC Battery1. Prepare the computer for disassembly (Section 5.3).2. Remove the

5–18 Maintenance and Service GuideRemoval and Replacement Procedures5.10 Optical Drive1. Prepare the computer for disassembly (Section 5.3).2. Positio

Removal and Replacement ProceduresMaintenance and Service Guide 5–193. Remove the Torx8 T8M2.5×9.0 screw 1 that secures the optical drive to the compu

1–6 Maintenance and Service GuideProduct Description1.4 External ComponentsThe external components on the front of the computer are shown below and de

5–20 Maintenance and Service GuideRemoval and Replacement Procedures5.11 KeyboardKeyboard Spare Part Number InformationKeyboards with pointing stick (

Removal and Replacement ProceduresMaintenance and Service Guide 5–211. Prepare the computer for disassembly (Section 5.3).2. Position the computer wit

5–22 Maintenance and Service GuideRemoval and Replacement Procedures3. Remove the four Torx8 T8M2.5×9.0 screws that secure the keyboard to the compute

Removal and Replacement ProceduresMaintenance and Service Guide 5–237. Release the zero insertion force (ZIF) connector 1 to which the keyboard cable

5–24 Maintenance and Service GuideRemoval and Replacement Procedures5.12 Internal Memory Module1. Prepare the computer for disassembly (Section 5.3).2

Removal and Replacement ProceduresMaintenance and Service Guide 5–253. Spread the retaining tabs 1 on each side of the memory module socket to release

5–26 Maintenance and Service GuideRemoval and Replacement Procedures5.13 TouchPad1. Prepare the computer for disassembly (Section 5.3).2. Remove the k

Removal and Replacement ProceduresMaintenance and Service Guide 5–274. Remove the Torx8 T8M2.5×9.0 screw that secures the TouchPad to the computer.Rem

5–28 Maintenance and Service GuideRemoval and Replacement Procedures5. Turn the computer display-side up with the front toward you.6. Open the compute

Removal and Replacement ProceduresMaintenance and Service Guide 5–2911. If it is necessary to replace the TouchPad cable, turn the TouchPad upside dow

Product DescriptionMaintenance and Service Guide 1–73 Battery light Amber: A battery pack is charging. Green: A battery pack is close to full charg

5–30 Maintenance and Service GuideRemoval and Replacement Procedures5.14 Modem Module1. Prepare the computer for disassembly (Section 5.3).2. Remove t

Removal and Replacement ProceduresMaintenance and Service Guide 5–314. Remove the two Phillips PM2.0×4.0 screws 1 that secure the modem module to the

5–32 Maintenance and Service GuideRemoval and Replacement Procedures5.15 Switch Cover1. Prepare the computer for disassembly (Section 5.3).2. Turn the

Removal and Replacement ProceduresMaintenance and Service Guide 5–334. Turn the computer display-side up with front toward you.5. Open the computer as

5–34 Maintenance and Service GuideRemoval and Replacement Procedures5.16 LED Board1. Prepare the computer for disassembly (Section 5.3).2. Remove the

Removal and Replacement ProceduresMaintenance and Service Guide 5–355.17 Fan Assembly1. Prepare the computer for disassembly (Section 5.3).2. Release

5–36 Maintenance and Service GuideRemoval and Replacement Procedures5.18 Processor Heat Sink1. Prepare the computer for disassembly (Section 5.3).2. R

Removal and Replacement ProceduresMaintenance and Service Guide 5–37✎The thermal paste should be thoroughly cleaned from the surfaces of the heat sink

5–38 Maintenance and Service GuideRemoval and Replacement Procedures5.19 Processor1. Prepare the computer for disassembly (Section 5.3), and then remo

Removal and Replacement ProceduresMaintenance and Service Guide 5–392. Use a flat-bladed screwdriver to turn the processor locking screw 1 one-half tu

1–8 Maintenance and Service GuideProduct DescriptionThe external components on the right side of the computer are shown below and described in Table 1

5–40 Maintenance and Service GuideRemoval and Replacement Procedures5.20 Video Board Heat Sink1. Prepare the computer for disassembly (Section 5.3).2.

Removal and Replacement ProceduresMaintenance and Service Guide 5–414. Loosen the four Phillips PM2.5×7.0 screws 1 that secure the video board heat si

5–42 Maintenance and Service GuideRemoval and Replacement Procedures6. Lift the rear edge of the top cover hinge 1 until it rests at an angle.7. Lift

Removal and Replacement ProceduresMaintenance and Service Guide 5–43✎The thermal pads should be thoroughly cleaned from the surfaces of the video boar

5–44 Maintenance and Service GuideRemoval and Replacement Procedures5.21 Video Board1. Prepare the computer for disassembly (Section 5.3).2. Remove th

Removal and Replacement ProceduresMaintenance and Service Guide 5–455. Lift the front edge of the video board 1 until it clears the top cover hinge.6.

5–46 Maintenance and Service GuideRemoval and Replacement Procedures5.22 Display Assembly1. Prepare the computer for disassembly (Section 5.3).2. Remo

Removal and Replacement ProceduresMaintenance and Service Guide 5–474. Close the computer and turn it upside down with the rear panel toward you.5. Re

5–48 Maintenance and Service GuideRemoval and Replacement Procedures7. Turn the computer display-side up with the front toward you.8. Open the compute

Removal and Replacement ProceduresMaintenance and Service Guide 5–49ÄCAUTION: Support the display assembly when removing the following screws. Failure

Product DescriptionMaintenance and Service Guide 1–9Table 1-2Right-Side ComponentsItem Component Function1Audio-out (headphone) jackConnect optional h

5–50 Maintenance and Service GuideRemoval and Replacement ProceduresDisplay Assembly SubcomponentsSpare Part Number InformationItem DescriptionSpare P

Removal and Replacement ProceduresMaintenance and Service Guide 5–5114. Remove the following display bezel screw covers:1 Two rounded rubber screw cov

5–52 Maintenance and Service GuideRemoval and Replacement Procedures15. Remove the following display bezel screws:1 Six Torx8 T8M2.5×7.0 screws2 Two P

Removal and Replacement ProceduresMaintenance and Service Guide 5–5316. Flex the inside edges of the left and right sides 1 of the display bezel and t

5–54 Maintenance and Service GuideRemoval and Replacement Procedures18. Remove the four mylar screw covers 1 and the four Torx8 T8M2.5×4.0 screws 2 th

Removal and Replacement ProceduresMaintenance and Service Guide 5–5519. Remove the following display panel screws:1 Two Torx8 T8M2.5×4.0 screws that s

5–56 Maintenance and Service GuideRemoval and Replacement Procedures20. Remove the display panel 1, ambient light sensor board 2, and display inverter

Removal and Replacement ProceduresMaintenance and Service Guide 5–5721. Disconnect the following cables:1 Ambient light sensor board cable2 Display pa

5–58 Maintenance and Service GuideRemoval and Replacement Procedures23. If it is necessary to replace a display hinges, remove the four Phillips PM2.0

Removal and Replacement ProceduresMaintenance and Service Guide 5–5925. If it is necessary to replace the display latch actuator 1, remove the actuato

1–10 Maintenance and Service GuideProduct DescriptionThe external components on the left side of the computer are shown below and described in Table 1

5–60 Maintenance and Service GuideRemoval and Replacement Procedures26. If it is necessary to replace the display latch arm, slide and hold the arm 1

Removal and Replacement ProceduresMaintenance and Service Guide 5–6130. If it is necessary to replace the wireless antenna transceivers and cables, re

5–62 Maintenance and Service GuideRemoval and Replacement Procedures33. If it is necessary to replace the microphone and cable, release the retention

Removal and Replacement ProceduresMaintenance and Service Guide 5–635.23 Top Cover1. Prepare the computer for disassembly (Section 5.3), and then remo

5–64 Maintenance and Service GuideRemoval and Replacement Procedures3. Remove the fourteen Torx8 T8M2.5×9.0 screws that secure the top cover to the co

Removal and Replacement ProceduresMaintenance and Service Guide 5–656. Lift the rear edge of the top cover 1 to disengage it from the base enclosure.7

5–66 Maintenance and Service GuideRemoval and Replacement Procedures5.24 Speaker1. Prepare the computer for disassembly (Section 5.3), and then remove

Removal and Replacement ProceduresMaintenance and Service Guide 5–672. Disconnect the speaker cable 1 from the system board.3. Remove the speaker 2 fr

5–68 Maintenance and Service GuideRemoval and Replacement Procedures5.25 System Board✎When replacing the system board, ensure that the following compo

Removal and Replacement ProceduresMaintenance and Service Guide 5–691. Prepare the computer for disassembly (Section 5.3), and then remove the followi

Product DescriptionMaintenance and Service Guide 1–116 1394 port Connects an optional 1394a device such as a scanner, digital camera, or digital camco

5–70 Maintenance and Service GuideRemoval and Replacement Procedures2. Disconnect the the following cables from the system board:1 Network cable2 Mode

Removal and Replacement ProceduresMaintenance and Service Guide 5–713. Remove the Torx8 T8M2.5×7.0 screw 1 that secures the system board to the base e

5–72 Maintenance and Service GuideRemoval and Replacement Procedures6. If it is necessary to replace the modem connector and cable, remove the connect

Removal and Replacement ProceduresMaintenance and Service Guide 5–737. If it is necessary to replace the network connector and cable, remove the conne

5–74 Maintenance and Service GuideRemoval and Replacement Procedures8. If it is necessary to replace the Bluetooth module cable, remove the cable 1 fr

Removal and Replacement ProceduresMaintenance and Service Guide 5–755.26 USB/Audio Board✎Full-featured models are equipped with a USB/audio board. Def

5–76 Maintenance and Service GuideRemoval and Replacement Procedures2. Remove the USB cable 1 and audio cable 2 from the clips in the base enclosure.3

Removal and Replacement ProceduresMaintenance and Service Guide 5–775. If it is necessary to replace the USB/audio board cable, disconnect the cable f

5–78 Maintenance and Service GuideRemoval and Replacement Procedures5.27 PC Card/Smart Card Assembly1. Prepare the computer for disassembly (Section 5

Removal and Replacement ProceduresMaintenance and Service Guide 5–792. Turn the system board upside down with the PC Card eject button facing away fro

1–12 Maintenance and Service GuideProduct DescriptionThe external components on the rear panel of the computer are shown below and described in Table

5–80 Maintenance and Service GuideRemoval and Replacement Procedures4. Turn the system board top-side up with the PC Card eject button facing away fro

Maintenance and Service Guide 6–16SpecificationsThis chapter provides physical and performance specifications.Table 6-1ComputerDimensions Metric U.S.H

6–2 Maintenance and Service GuideSpecificationsRelative humidity (noncondensing)OperatingNonoperating10% to 90%5% to 95%10% to 90%5% to 95%Maximum alt

SpecificationsMaintenance and Service Guide 6–3Table 6-217.0-inch, WUXGA+WVADimensionsHeightWidthDiagonal24.4 cm38.1 cm43.2 cm9.6 in15.0 in17.0 inNumb

6–4 Maintenance and Service GuideSpecificationsTable 6-317.0-inch, WSXGA+WVADimensionsHeightWidthDiagonal24.4 cm38.1 cm43.2 cm9.6 in15.0 in17.0 inNumb

SpecificationsMaintenance and Service Guide 6–5Table 6-417.0-inch, WXGA+WVADimensionsHeightWidthDiagonal24.4 cm38.1 cm43.2 cm9.6 in15.0 in17.0 inNumbe

6–6 Maintenance and Service GuideSpecificationsTable 6-5Hard Drives100-GB* 80-GB* 60-GB*DimensionsHeightWidthWeight9.5 mm70 mm99 g9.5 mm70 mm99 g9.5 m

SpecificationsMaintenance and Service Guide 6–7Table 6-6Primary 8-cell, Li-Ion Battery PackDimensionsHeightWidthDepthWeight2.00 cm26.80 cm5.30 cm0.34

6–8 Maintenance and Service GuideSpecificationsTable 6-7DVD±RW and CD-RW Combo DriveApplicable disc Read:DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10,

SpecificationsMaintenance and Service Guide 6–9Disc thickness 1.2 mm (0.047 in)Track pitch 0.74 µmAccess time CD DVDRandomFull stroke< 175 ms< 2

Product DescriptionMaintenance and Service Guide 1–13Table 1-4Rear Panel ComponentsItem Component Function1 Security cable slot Attaches an optional s

6–10 Maintenance and Service GuideSpecificationsTable 6-8DVD/CD-RW Combo DriveApplicable disc Read:DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-1

SpecificationsMaintenance and Service Guide 6–11Disc thickness 1.2 mm (0.047 in)Track pitch 0.74 µmAccess time CD media DVD mediaRandomFull stroke<

6–12 Maintenance and Service GuideSpecificationsTable 6-9System DMAHardware DMA System FunctionDMA0 Not applicableDMA1* Not applicableDMA2* Not applic

SpecificationsMaintenance and Service Guide 6–13Table 6-10System InterruptsHardware IRQ System FunctionIRQ0 System timerIRQ1 Standard 101-/102-Key or

6–14 Maintenance and Service GuideSpecificationsIRQ11 Intel USB EHCI controller—24CDIntel USB UHCI controller—24C4Intel USB UHCI controller—24C7Intel

SpecificationsMaintenance and Service Guide 6–15Table 6-11System I/O AddressesI/O Address (hex) System Function (shipping configuration)000 - 00F DMA

6–16 Maintenance and Service GuideSpecificationsI/O Address (hex) System Function (shipping configuration)0A2 - 0BF Unused0C0 - 0DF DMA controller no.

SpecificationsMaintenance and Service Guide 6–17I/O Address (hex) System Function (shipping configuration)2F0 - 2F7 Unused2F8 - 2FF Infrared port300 -

6–18 Maintenance and Service GuideSpecificationsTable 6-12System Memory MapSize Memory Address System Function640 KB 00000000-0009FFFF Base memory128

Maintenance and Service Guide A–1A Screw ListingThis appendix provides specification and reference information for the screws and screw locks used in

© Copyright 2006, 2007 Hewlett-Packard Development Company, L.P.Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation. Intel i

1–14 Maintenance and Service GuideProduct DescriptionThe standard keyboard components of the computer are shown below and described in Table 1-5.Stand

A–2 Maintenance and Service GuideScrew ListingPhillips PM2.5×17.0 Screw LocationsTable A-2Phillips PM2.5×17.0 ScrewColor Qty. Length ThreadHead WidthB

Screw ListingMaintenance and Service Guide A–3Phillips PM2.5×13.0 Screw LocationTable A-3Phillips PM2.5×13.0 Spring-Loaded ScrewColor Qty. Length Thre

A–4 Maintenance and Service GuideScrew ListingPhillips PM2.5×4.0 Screw LocationsTable A-4Phillips PM2.5×4.0 ScrewColor Qty. Length ThreadHead WidthBla

Screw ListingMaintenance and Service Guide A–5Phillips PM2.0×4.0 Screw LocationsTable A-5Phillips PM2.0×4.0 ScrewColor Qty. Length ThreadHead WidthSil

A–6 Maintenance and Service GuideScrew ListingPhillips PM2.0×4.0 Screw LocationsTable A-5Phillips PM2.0×4.0 Screw (Continued)Color Qty. Length ThreadH

Screw ListingMaintenance and Service Guide A–7Phillips PM2.0×4.0 Screw LocationsTable A-5Phillips PM2.0×4.0 Screw (Continued)Color Qty. Length ThreadH

A–8 Maintenance and Service GuideScrew ListingPhillips PM2.0×4.0 Screw LocationsTable A-5Phillips PM2.0×4.0 Screw (Continued)Color Qty. Length ThreadH

Screw ListingMaintenance and Service Guide A–9Phillips PM2.0×4.0 Screw LocationsTable A-5Phillips PM2.0×4.0 Screw (Continued)Color Qty. Length ThreadH

A–10 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×9.0 Screw LocationsTable A-6Torx8 T8M2.5×9.0 ScrewColor Qty. Length ThreadHead WidthBlack

Screw ListingMaintenance and Service Guide A–11Torx8 T8M2.5×9.0 Screw LocationsTable A-6Torx8 T8M2.5×9.0 Screw (Continued)Color Qty. Length ThreadHead

Product DescriptionMaintenance and Service Guide 1–15Table 1-5Standard Keyboard ComponentsItem Component Function1 f1 to f12 keys (12) Perform system

A–12 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×9.0 Screw LocationsTable A-6Torx8 T8M2.5×9.0 Screw (Continued)Color Qty. Length ThreadHead

Screw ListingMaintenance and Service Guide A–13Torx8 T8M2.5×4.0 Screw LocationsTable A-7Torx8 T8M2.5×4.0 ScrewColor Qty. Length ThreadHead WidthBlack

A–14 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×4.0 Screw LocationsTable A-7Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

Screw ListingMaintenance and Service Guide A–15Torx8 T8M2.5×4.0 Screw LocationsTable A-7Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

A–16 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×4.0 Screw LocationsTable A-7Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

Screw ListingMaintenance and Service Guide A–17Torx8 T8M2.5×4.0 Screw LocationsTable A-7Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

A–18 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×4.0 Screw LocationsTable A-7Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

Screw ListingMaintenance and Service Guide A–19Torx8 T8M2.5×19.0 Screw LocationTable A-8Torx8 T8M2.5×19.0 ScrewColor Qty. Length ThreadHead WidthBlack

A–20 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×7.0 Screw LocationsTable A-9Torx8 T8M2.5×7.0 ScrewColor Qty. Length ThreadHead WidthBlack

Screw ListingMaintenance and Service Guide A–21Torx8 T8M2.5×7.0 Screw LocationsTable A-9Torx8 T8M2.5×7.0 Screw (Continued)Color Qty. Length ThreadHead

1–16 Maintenance and Service GuideProduct DescriptionThe computer top components are shown below and described in Table 1-6.Top ComponentsTable 1-6Top

A–22 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×7.0 Screw LocationsTable A-9Torx8 T8M2.5×7.0 Screw (Continued)Color Qty. Length ThreadHead

Screw ListingMaintenance and Service Guide A–23Torx8 T8M2.5×7.0 Screw LocationTable A-9Torx8 T8M2.5×7.0 Screw (Continued)Color Qty. Length ThreadHead

A–24 Maintenance and Service GuideScrew ListingPhillips PM2.5×7.0 Screw LocationsTable A-10Phillips PM2.5×7.0 ScrewColor Qty. Length ThreadHead WidthS

Screw ListingMaintenance and Service Guide A–25Phillips PM2.5×7.0 Screw LocationsTable A-10Phillips PM2.5×7.0 Screw (Continued)Color Qty. Length Threa

A–26 Maintenance and Service GuideScrew ListingPhillips PM2.5×7.0 Screw LocationsTable A-10Phillips PM2.5×7.0 Screw (Continued)Color Qty. Length Threa

Screw ListingMaintenance and Service Guide A–27HM5.0×9.0 Screw Lock LocationsTable A-11Hex Socket HM5.0×9.0 Screw LocksColor Qty. Length ThreadHead Wi

A–28 Maintenance and Service GuideScrew ListingPhillips PM2.0×6.0 Screw LocationsTable A-12Phillips PM2.0×6.0 ScrewsColor Qty. Length ThreadHead Width

Maintenance and Service Guide B–1BSoftware Backup andRecoveryBackupHP Backup and Recovery Manager provides several ways to back up the system and to r

B–2 Maintenance and Service GuideSoftware Backup and RecoveryBacking Up the SystemUsing HP Backup and Restore Manager, you can Back up specific files

Software Backup and RecoveryMaintenance and Service Guide B–3Backing Up the Entire Hard DriveWhen you perform a complete backup of the hard drive, you

Product DescriptionMaintenance and Service Guide 1–172 Wireless button Turns the wireless functionality on or off, but does not create a wireless conn

B–4 Maintenance and Service GuideSoftware Backup and RecoveryBacking Up Modifications Made to the SystemWhen you back up modifications since your last

Software Backup and RecoveryMaintenance and Service Guide B–5Scheduling BackupsTo schedule backups:1. Select Start > All Programs > HP Backup &a

B–6 Maintenance and Service GuideSoftware Backup and RecoveryHP Backup and Recovery Manager allows you to Create recovery discs (highly recommended).

Software Backup and RecoveryMaintenance and Service Guide B–7Before creating recovery discs: Obtain high-quality CD-R, DVD-R, or DVD+R media, purchas

B–8 Maintenance and Service GuideSoftware Backup and RecoveryPerforming a Recovery from the Hard DriveThere are 2 ways to initiate a recovery from the

Maintenance and Service Guide C–1CDisplay Component RecyclingÅWARNING: The backlight contains mercury. Caution should be exercised when removing and h

C–2 Maintenance and Service GuideDisplay Component RecyclingThis appendix provides disassembly instructions for the display assembly. The display asse

Display Component RecyclingMaintenance and Service Guide C–3Perform the following steps to disassemble the display assembly:1. Remove all screw covers

C–4 Maintenance and Service GuideDisplay Component Recycling2. Lift up and out on the left and right inside edges 1 and the top and bottom inside edge

Display Component RecyclingMaintenance and Service Guide C–54. Disconnect all display panel cables 1 from the display inverter and remove the inverter

1–18 Maintenance and Service GuideProduct DescriptionThe computer pointing device components shown below and described in Table 1-7.Pointing Device Co

C–6 Maintenance and Service GuideDisplay Component Recycling5. Remove all screws 1 that secure the display panel assembly to the display enclosure.6.

Display Component RecyclingMaintenance and Service Guide C–77. Turn the display panel assembly upside down.8. Remove all screws that secure the displa

C–8 Maintenance and Service GuideDisplay Component Recycling9. Use a sharp-edged tool to cut the tape 1 that secures the sides of the display panel to

Display Component RecyclingMaintenance and Service Guide C–911. Remove the screws 1 that secure the backlight cover to the display panel.12. Lift the

C–10 Maintenance and Service GuideDisplay Component Recycling14. Turn the display panel right-side up.15. Remove the backlight cables 1 from the clip

Display Component RecyclingMaintenance and Service Guide C–1116. Turn the display panel upside down.17. Remove the backlight frame from the display pa

C–12 Maintenance and Service GuideDisplay Component RecyclingÅWARNING: The backlight contains mercury. Caution should be exercised when removing and h

Display Component RecyclingMaintenance and Service Guide C–1319. Disconnect the display cable 1 from the LCD panel.20. Remove the screws 2 that secure

C–14 Maintenance and Service GuideDisplay Component Recycling23. Remove the LCD panel.Removing the LCD Panel24. Recycle the LCD panel and backlight.

Maintenance and Service Guide D–1DConnector Pin AssignmentsTable D-1Audio-Out (Headphone)Pin Signal Pin Signal1 Audio out, left channel 3 Ground2 Audi

Product DescriptionMaintenance and Service Guide 1–19Table 1-7Pointing Device ComponentsItem Component Function1 Pointing stick (select models only)Mo

D–2 Maintenance and Service GuideConnector Pin AssignmentsTable D-2Audio-In (Microphone)Pin Signal Pin Signal1 Audio signal in 3 Ground2 Audio signal

Connector Pin AssignmentsMaintenance and Service Guide D–3Table D-4S-Video-OutPin Signal Pin Signal1 S-VHS color (C) signal 5 TV-CD2 Composite video s

D–4 Maintenance and Service GuideConnector Pin AssignmentsTable D-5External MonitorPin Signal Pin Signal1 Red analog 9 +5 VDC2 Green analog 10 Ground3

Connector Pin AssignmentsMaintenance and Service Guide D–5Table D-6RJ-11 (Modem)Pin Signal Pin Signal1 Unused 4 Unused2Tip 5Unused3 Ring 6 Unused

D–6 Maintenance and Service GuideConnector Pin AssignmentsTable D-7RJ-45 (Network)Pin Signal Pin Signal1 Transmit + 5 Unused2 Transmit – 6 Receive –3

Maintenance and Service Guide E–1EPower Cord Set Requirements3-Conductor Power Cord SetThe wide range input feature of the computer permits it to oper

E–2 Maintenance and Service GuidePower Cord Set RequirementsGeneral RequirementsThe requirements listed below are applicable to all countries. The le

Power Cord Set RequirementsMaintenance and Service Guide E–3Country-Specific Requirements3-Conductor Power Cord Set RequirementsCountry/Region Accredi

E–4 Maintenance and Service GuidePower Cord Set RequirementsKorea EK 4The Netherlands KE A 1Norway NEMKO 1People’s Republic of ChinaCCC 5Sweden SEMKO

Maintenance and Service Guide Index–1Index 4–31394 port 1–11AAC adapter, spare part numbers 3–21, 3–25, 3–34accessory battery connector 1–20arrow keys

1–20 Maintenance and Service GuideProduct DescriptionThe external components on the bottom of the computer are shown below and described in Table 1-8.

Index–2 Maintenance and Service GuideIndextop 1–16, 1–18computer feetillustrated 3–18locations 5–10Computer Setupoverview 2–1computer specifications 6

IndexMaintenance and Service Guide Index–3spare part numbers 3–17, 3–33, 3–34, 5–50, 5–56display release button 1–7Display Screw Kit, spare part numbe

Index–4 Maintenance and Service GuideIndexnonfunctioning docking device 2–18nonfunctioning keyboard 2–28nonfunctioning pointing device 2–29fn key 1–15

IndexMaintenance and Service Guide Index–5illustrated 3–18removal 5–12microphoneillustrated 3–19removal 5–62microphone jacklocation 1–9pin assignments

Index–6 Maintenance and Service GuideIndexspare part number 3–9, 3–31, 5–78plastic parts 4–2Plastics Kitcontents 3–18spare part number 3–7, 3–18, 3–31

IndexMaintenance and Service Guide Index–7memory map 6–18optical drive 6–8, 6–10system DMA 6–12static shielding materials 4–8S-Video-out jacklocation

Index–8 Maintenance and Service GuideIndexVvents 1–21video boardremoval 5–44spare part number 3–9, 5–44spare part numbers 3–33, 3–34video board heat s

Product DescriptionMaintenance and Service Guide 1–215 Memory modulecompartmentMini Card compartmentContains one memory slot that supports replaceable

1–22 Maintenance and Service GuideProduct Description1.5 Design OverviewThis section presents a design overview of key parts and features of the compu

Maintenance and Service Guide 2–12TroubleshootingÅWARNING: Only authorized technicians trained by HP should repair this equipment. All troubleshooting

Maintenance and Service Guide iContents1 Product Description1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–21.2

2–2 Maintenance and Service GuideTroubleshooting1. Open Computer Setup by turning on or restarting the computer, and then pressing f10 while the “F10

TroubleshootingMaintenance and Service Guide 2–3Computer Setup DefaultsTo return all settings in Computer Setup to the values that were set at the fac

2–4 Maintenance and Service GuideTroubleshootingComputer Setup MenusThe menu tables in this section provide an overview of Computer Setup options.✎Som

TroubleshootingMaintenance and Service Guide 2–5Table 2-2Security MenuSelect To Do ThisSetup password Enter, change, or delete a setup password.Power-

2–6 Maintenance and Service GuideTroubleshootingTable 2-2Security Menu (Continued)Select To Do ThisSystem IDs Enter user-defined computer asset and ow

TroubleshootingMaintenance and Service Guide 2–7Table 2-4System Configuration MenuSelect To Do ThisLanguage (or press f2). Change the Computer Setup l

2–8 Maintenance and Service GuideTroubleshootingDevice configurations Swap the functions of the fn key and left ctrl key. Enable/disable multiple s

TroubleshootingMaintenance and Service Guide 2–9Device configurations (Continued) Enable/disable SATA Native Support. Enable/disable Dual Core CPU.

2–10 Maintenance and Service GuideTroubleshooting2.2 Troubleshooting FlowchartsTable 2-5Troubleshooting Flowcharts OverviewFlowchart Description2.1 “F

TroubleshootingMaintenance and Service Guide 2–11Flowchart 2.1—Initial TroubleshootingConnectingto networkor modem?Begintroubleshooting.Is therepower?

ii Maintenance and Service GuideContents4 Removal and Replacement Preliminaries4.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . .

2–12 Maintenance and Service GuideTroubleshootingFlowchart 2.2—No Power, Part 11. Reset the power cables in the docking device and at the AC outlet.2.

TroubleshootingMaintenance and Service Guide 2–13Flowchart 2.3—No Power, Part 2Continued from“Flowchart 2.2—No Power, Part 1.”Visually check fordebris

2–14 Maintenance and Service GuideTroubleshootingFlowchart 2.4—No Power, Part 3Continued from“Flowchart 2.3—No Power, Part 2.”Reseat AC adapterin comp

TroubleshootingMaintenance and Service Guide 2–15Flowchart 2.5—No Power, Part 4YNContinued from“Flowchart 2.4—No Power, Part 3.”Reseat loosecomponents

2–16 Maintenance and Service GuideTroubleshootingFlowchart 2.6—No Video, Part 1ANStand-aloneor docking device?No video.Replace the following one at a

TroubleshootingMaintenance and Service Guide 2–17Flowchart 2.7—No Video, Part 2YNContinued from“Flowchart 2.6—No Video, Part 1.”DoneAdjust externalmon

2–18 Maintenance and Service GuideTroubleshootingFlowchart 2.8—Nonfunctioning Docking Device(if applicable)YNReset power cord in docking device andpow

TroubleshootingMaintenance and Service Guide 2–19Flowchart 2.9—No Operating System (OS) LoadingNo OS loading from hard drive,go to “Flowchart 2.10—No

2–20 Maintenance and Service GuideTroubleshootingFlowchart 2.10—No OS Loading, Hard Drive, Part 1Go to“Flowchart 2.17—Nonfunctioning Device.”YDoneNOS

TroubleshootingMaintenance and Service Guide 2–21Flowchart 2.11—No OS Loading, Hard Drive, Part 2Load OS using Operating System disc (if applicable).C

ContentsMaintenance and Service Guide iii5.23 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–635.24 Speaker . . . . . . .

2–22 Maintenance and Service GuideTroubleshootingFlowchart 2.12—No OS Loading, Hard Drive, Part 3YSystemfiles on harddrive?Continued from“Flowchart 2.

TroubleshootingMaintenance and Service Guide 2–23Flowchart 2.13—No OS Loading, Diskette DriveDoneYNReseatdiskette drive.OS not loadingfromdiskette dri

2–24 Maintenance and Service GuideTroubleshootingFlowchart 2.14—No OS Loading, Optical DriveYDoneNBootabledisc indrive?Discin drive?No OSloading fromC

TroubleshootingMaintenance and Service Guide 2–25Flowchart 2.15—No Audio, Part 1No audio.NComputer indocking device(if applicable)?Internalaudio?Audio

2–26 Maintenance and Service GuideTroubleshootingFlowchart 2.16—No Audio, Part 2YNContinued from “Flowchart 2.15—No Audio, Part 1.”Reloadaudio drivers

TroubleshootingMaintenance and Service Guide 2–27Flowchart 2.17—Nonfunctioning DeviceDoneAny physicaldevice detected?YNUnplug the nonfunctioning devic

2–28 Maintenance and Service GuideTroubleshootingFlowchart 2.18—Nonfunctioning KeyboardYNOK?Keyboardnot operating properly.Externaldeviceworks?Replace

TroubleshootingMaintenance and Service Guide 2–29Flowchart 2.19—Nonfunctioning Pointing DeviceYNOK?Pointing devicenot operatingproperly.Externaldevice

2–30 Maintenance and Service GuideTroubleshootingFlowchart 2.20—No Network/Modem ConnectionYDisconnect allpower fromthe computerand open.No networkor

Maintenance and Service Guide 3–13Illustrated Parts CatalogThis chapter provides an illustrated parts breakdown and a reference for spare part numbers

iv Maintenance and Service GuideContents

3–2 Maintenance and Service GuideIllustrated Parts Catalog3.2 Computer Major ComponentsComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–3Table 3-1Spare Parts: Computer Major ComponentsItem DescriptionSpare Part Number1 Display as

3–4 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–5Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Number

3–6 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–7Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Number

3–8 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–9Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Number

3–10 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–11Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Numbe

Maintenance and Service Guide 1–11Product DescriptionThe HP Compaq nw9440 Notebook PC and HP Compaq nx9420 Notebook PC offer advanced modularity, Inte

3–12 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–13Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Numbe

3–14 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–15Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Numbe

3–16 Maintenance and Service GuideIllustrated Parts Catalog3.3 Display Assembly Components

Illustrated Parts CatalogMaintenance and Service Guide 3–17Table 3-2Display Assembly ComponentsSpare Part Number InformationItem DescriptionSpare Part

3–18 Maintenance and Service GuideIllustrated Parts Catalog3.4 Plastics KitTable 3-3Plastics KitSpare Part Number InformationItem DescriptionSpare Par

Illustrated Parts CatalogMaintenance and Service Guide 3–193.5 Cable KitTable 3-4Cable KitSpare Part Number InformationItem DescriptionSpare Part Numb

3–20 Maintenance and Service GuideIllustrated Parts Catalog3.6 Mass Storage DevicesTable 3-5Mass Storage DevicesSpare Part Number InformationItem Desc

Illustrated Parts CatalogMaintenance and Service Guide 3–213.7 Miscellaneous (Not Illustrated)Table 3-6Miscellaneous (Not Illustrated)Spare Part Infor

1–2 Maintenance and Service GuideProduct Description1.1 Features The following processors, varying by computer model:❏ Intel Core Duo T2600 (2.17-GHz

3–22 Maintenance and Service GuideIllustrated Parts CatalogPower cords:For use in the United States 350055-001For use in Australia 350055-011For use i

Illustrated Parts CatalogMaintenance and Service Guide 3–23USB 1.1 diskette drive 359118-001Screw Kit (includes the following screws; refer toAppendix

3–24 Maintenance and Service GuideIllustrated Parts Catalog3.8 Sequential Part Number ListingTable 3-7Sequential Part Number ListingSpare Part Number

Illustrated Parts CatalogMaintenance and Service Guide 3–25380089-001 HP Docking Station Miscellaneous Plastics Kit391173-001 90-watt PFC AC adapter39

3–26 Maintenance and Service GuideIllustrated Parts Catalog407576-002 802.11a/b/g GL WLAN Mini Card module for use in the MOW2 countries listed below:

Illustrated Parts CatalogMaintenance and Service Guide 3–27409911-021 Keyboard without pointing stick for use internationally (includes Pointing Stick

3–28 Maintenance and Service GuideIllustrated Parts Catalog409911-171 Keyboard without pointing stick for use in Saudi Arabia (includes pointing stick

Illustrated Parts CatalogMaintenance and Service Guide 3–29409913-001 Keyboard with pointing stick for use in the United States (includes pointing sti

3–30 Maintenance and Service GuideIllustrated Parts Catalog409913-161 Keyboard with pointing stick for use in Latin America (includes pointing stick c

Illustrated Parts CatalogMaintenance and Service Guide 3–31409913-DD1 Keyboard with pointing stick for use in Iceland (includes pointing stick cable)4

Product DescriptionMaintenance and Service Guide 1–3 Integrated wireless support for Mini Card IEEE 802.11a/b/g or 802.11b/g Wireless LAN (WLAN) devi

3–32 Maintenance and Service GuideIllustrated Parts Catalog409951-001 Top cover with 3 pointing stick buttons and 3 TouchPad buttons, for use with key

Illustrated Parts CatalogMaintenance and Service Guide 3–33409968-001 USB/audio board (includes audio board cable and USB board cable)409969-001 Intel

3–34 Maintenance and Service GuideIllustrated Parts Catalog409985-001 2X Max DVD/CD-RW Combo Drive (includes bezel and optical drive bracket)409986-00

Maintenance and Service Guide 4–14Removal and ReplacementPreliminariesThis chapter provides essential information for proper and safe removal and repl

4–2 Maintenance and Service GuideRemoval and Replacement Preliminaries4.2 Service ConsiderationsThe following sections include some of the considerati

Removal and Replacement PreliminariesMaintenance and Service Guide 4–34.3 Preventing Damage to Removable DrivesRemovable drives are fragile components

4–4 Maintenance and Service GuideRemoval and Replacement Preliminaries4.4 Preventing Electrostatic DamageMany electronic components are sensitive to e

Removal and Replacement PreliminariesMaintenance and Service Guide 4–54.5 Packaging and Transporting PrecautionsUse the following grounding precaution

4–6 Maintenance and Service GuideRemoval and Replacement Preliminaries4.6 Workstation PrecautionsUse the following grounding precautions at workstatio

Removal and Replacement PreliminariesMaintenance and Service Guide 4–74.7 Grounding Equipment and MethodsGrounding equipment must include either a wri