Page 1 Maintenance and Service Guide HP Compaq nw8440 Notebook PC HP Compaq nc8430 Notebook PC HP Compaq nx8420 Notebook PC Document Part Number: 417790-001 June 2006 This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts;...
Page 2 Java is a trademark of Sun Microsystems Inc. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
Page 3: Table Of Contents
1 Product Description 1.1 Features ........1–2 1.2 Resetting the Computer.
Page 4 Contents 3 Illustrated Parts Catalog 3.1 Serial Number Location ..... . 3–1 3.2 Computer Major Components....3–2 3.3 Plastics Kit .
Page 5 Contents 5 Removal and Replacement Procedures 5.1 Serial Number ......5–2 5.2 Disassembly Sequence Chart .
Page 6: Specifications
Contents 6 Specifications A Screw Listing B Software Backup and Recovery C Display Component Recycling D Connector Pin Assignments E Power Cord Set Requirements Index Maintenance and Service Guide...
Page 7: Product Description
Product Description The HP Compaq nw8440 Notebook PC, HP Compaq nc8430 Notebook PC, and HP Compaq nx8420 Notebook PC offer advanced modularity, Intel® Core™ Duo processors, and extensive multimedia support. HP Compaq nw8440 Notebook PC, HP Compaq nc8430 Notebook PC, and HP Compaq nx8420 Notebook PC Maintenance and Service Guide 1–1...
Page 8: Features
Product Description 1.1 Features ■ The following processors, varying by computer model: ❏ Intel Core Duo T2600 (2.17-GHz) ❏ Intel Core Duo T2500 (2.00-GHz) ❏ Intel Core Duo T2400 (1.83-GHz) ❏ Intel Core Duo T2300 (1.66-GHz) ■ The following displays are available, varying by computer model: ❏...
Page 9 ■ Integrated wireless support for Mini Card IEEE 802.11a/b/g or 802.11b/g Wireless LAN (WLAN) device ■ Support for one Type I or Type II PC Card slot, with support for both 32-bit (CardBus) and 16-bit PC Cards, varying by computer model ■...
Page 10: Resetting The Computer
Product Description 1.2 Resetting the Computer If the computer you are servicing has an unknown password, follow the steps below to reset the password. These steps also clear CMOS. ✎ The following steps will not clear an unknown password if the stringent security option has been enabled in the BIOS.
Page 11: Power Management
1.3 Power Management The computer comes with power management features that extend battery operating time and conserve power. The computer supports the following power management features: ■ Standby ■ Hibernation ■ Setting customization by the user ■ Hotkeys for setting the level of performance ■...
Page 12: External Components
Bluetooth® device, is turned on. ■ On: The computer is on. ■ Blinking: The computer is in standby. ■ Blinking rapidly: An HP Smart AC Adapter with a higher power rating should be connected. ■ Off: The computer is off or in hibernation.
Page 13 ■ Blinking green: The hard drive or optical drive is being accessed. ■ Amber: HP Mobile Data Protection has temporarily parked the hard drive. Opens the computer. Product Description...
Page 14: Right-Side Components
Product Description The external components on the right side of the computer are shown below and described in Table 1-2. Right-Side Components Item Component Audio-out (headphone) jack Internal microphone Audio-in (microphone) jack USB ports (2) Optical drive Serial port 1–8 Table 1-2 Right-Side Components Function...
Page 15: Rear Panel Components
The external components on the rear panel of the computer are shown below and described in Table 1-3. Rear Panel Components Item Component Battery bay Smart adapter power connector External monitor port Maintenance and Service Guide Table 1-3 Rear Panel Components Function Holds a battery.
Page 16: Left-Side Components
Product Description The external components on the left side of the computer are shown below and described in Table 1-4. Left-Side Components Item Component Security cable slot RJ-45 (network) jack RJ-11 (modem) jack S-Video-out jack 1–10 Table 1-4 Left-Side Components Function Attaches an optional security cable to the computer.
Page 17 Left-Side Components (Continued) Item Component Exhaust vent 1394 port USB port Smart card slot PC Card slot Digital Media Slot Maintenance and Service Guide Table 1-4 Function Provides airflow to cool internal components. Ä To prevent overheating, do not obstruct vents. Use the computer only a hard, flat surface.
Page 18 Product Description The standard keyboard components of the computer are shown below and described in Table 1-5. Standard Keyboard Components 1–12 Maintenance and Service Guide...
Page 19 Standard Keyboard Components Item Component f1 to f12 keys (12) caps lock key fn key Windows logo key Windows applications key Arrow keys Keypad keys num lock key Maintenance and Service Guide Table 1-5 Function Perform system and application tasks. When combined with the fn key, several keys and buttons perform additional tasks as hotkeys.
Page 20 Product Description The computer top components are shown below and described in Table 1-6. Top Components, Part 1 1–14 Maintenance and Service Guide...
Page 21: Top Components
Item Component Power button Info Center button Wireless button (with wireless light) Presentation button Caps lock light Num lock light Volume mute button Volume down button Volume up button Maintenance and Service Guide Table 1-6 Top Components Function When the computer is: ■...
Page 22 Product Description The computer top components are shown below and described in Table 1-7. Top Components, Part 2 1–16 Maintenance and Service Guide...
Page 23 Item Component Display lid switch Pointing stick (select models only) Stereo speakers (2) TouchPad TouchPad buttons Fingerprint reader TouchPad scroll zone Pointing stick buttons (select models only) Maintenance and Service Guide Table 1-7 Top Components Function ■ If the computer is closed while on, turns off the display.
Page 24 Product Description The external components on the bottom of the computer are shown below and described in Table 1-8. Bottom Components 1–18 Maintenance and Service Guide...
Page 25: Bottom Components
Function Holds the battery. Secure the battery in the battery bay. Connects an optional HP Ultra-Capacity Battery or HP Extended Life Battery. Contains one memory slot that supports replaceable memory modules. Holds the primary hard drive. Connects the computer to an optional docking device.
Page 26: Design Overview
Product Description 1.5 Design Overview This section presents a design overview of key parts and features of the computer. Refer to to identify replacement parts, and Replacement Procedures,” The system board provides the following device connections: ■ Audio ■ Digital Media Slot ■...
Page 27: Troubleshooting
Å WARNING: Only authorized technicians trained by HP should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly-/module-level repair. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or modifications to any printed wiring board.
Page 28: Selecting From The File Menu
Troubleshooting 2. Select the Main, Security, Advanced, or Tools menu. 3. To close Computer Setup and restart the computer: ❏ Select Exit > Exit Saving Changes, and then press – or – ❏ Select Exit > Exit Discarding Changes, and then press –...
Page 29: Selecting From The Security Menu
Selecting from the Security Menu Select Administrator Password Power-on Password DriveLock Passwords Password Options (Password options can be selected only when a power-on password has been set.) Device Security *Not applicable to SuperDisk LS-120 drives. Maintenance and Service Guide Table 2-2 Security Menu To Do This Enter, change, or delete an Administrator...
Page 30: Selecting From The Advanced Menu
Troubleshooting Selecting from the Advanced Menu Select Language Boot Order Accessibility Options Video Memory Selecting from the Tools Menu Select Hard Drive Self Test 2–4 Table 2-3 Advanced Menu To Do This Change the Computer Setup language. Enable/disable MultiBoot, which sets a startup sequence that can include most bootable devices and media in the system.
Page 31: Troubleshooting Flowcharts
2.2 Troubleshooting Flowcharts Troubleshooting Flowcharts Overview Flowchart Description “Flowchart 2.1—Initial Troubleshooting” “Flowchart 2.2—No Power, Part 1” “Flowchart 2.3—No Power, Part 2” “Flowchart 2.4—No Power, Part 3” “Flowchart 2.5—No Power, Part 4” “Flowchart 2.6—No Video, Part 1” “Flowchart 2.7—No Video, Part 2” “Flowchart 2.8—Nonfunctioning Docking Device (if applicable)”...
Page 32 Troubleshooting Troubleshooting Flowcharts Overview (Continued) Flowchart Description 2.14 “Flowchart 2.14—No OS Loading, Optical Drive” 2.15 “Flowchart 2.15—No Audio, Part 1” 2.16 “Flowchart 2.16—No Audio, Part 2” 2.17 “Flowchart 2.17—Nonfunctioning Device” 2.18 “Flowchart 2.18—Nonfunctioning Keyboard” 2.19 “Flowchart 2.19—Nonfunctioning Pointing Device” 2.20 “Flowchart 2.20—No Network/Modem Connection”...
Page 33: Flowchart 2.1—Initial Troubleshooting
Flowchart 2.1—Initial Troubleshooting Begin troubleshooting. Is there power? Beeps, LEDs, or error messages? Is there video? (no boot) Is the OS loading? Is there sound? Maintenance and Service Guide Go to “Flowchart 2.2—No Power, Part 1.” Check LED board, speaker connections.
Page 34: Flowchart 2.2—No Power, Part
Troubleshooting Flowchart 2.2—No Power, Part 1 No power (power LED is off). Remove from docking device (if applicable). Power up on battery power? Power up on AC power? Power up in docking device? 1. Reset the power cables in the docking device and at the AC outlet.
Page 35: Flowchart 2.3—No Power, Part
Flowchart 2.3—No Power, Part 2 Continued from “Flowchart 2.2—No Power, Part 1.” Visually check for debris in battery socket and clean if necessary. Power on? Check battery by recharging it, moving it to another computer, or replacing it. Power on? Done Maintenance and Service Guide Done...
Page 36: Flowchart 2.4—No Power, Part
Troubleshooting Flowchart 2.4—No Power, Part 3 Continued from “Flowchart 2.3—No Power, Part 2.” Plug directly into AC outlet. Power LED Reseat AC adapter in computer and at power source. Power on? Power outlet active? Replace power cord. Power on? 2–10 Done Done Internal or...
Page 37: Flowchart 2.5—No Power, Part
Flowchart 2.5—No Power, Part 4 Continued from “Flowchart 2.4—No Power, Part 3.” Open computer. Loose or damaged parts? Close computer and retest. Power on? Done Maintenance and Service Guide Reseat loose components and boards and replace damaged items. Replace the following items (if applicable). Check computer operation after each replacement: 1.
Page 38: Flowchart 2.6—No Video, Part
Troubleshooting Flowchart 2.6—No Video, Part 1 No video. Docking Device Stand-alone or docking device? Stand-alone Internal or external display*? Internal External Adjust brightness. Video OK? Replace the following one at a time. Test after each replacement. Check for bent pins on cable. Video OK? Done 2–12...
Page 39: Flowchart 2.7—No Video, Part
Flowchart 2.7—No Video, Part 2 Continued from “Flowchart 2.6—No Video, Part 1.” Remove computer from docking device, if connected. Adjust display brightness. Video OK? Check that computer is properly seated in docking device, for bent pins on cable, and for monitor connection.
Page 40 Troubleshooting Flowchart 2.8—Nonfunctioning Docking Device (if applicable) Nonfunctioning docking device. Reset power cord in docking device and power outlet. Check voltage setting on docking device. Reset monitor cable connector at docking device. Docking device operating? Replace docking device. 2–14 Reinstall computer into docking device.
Page 41: Flowchart 2.9—No Operating System (Os) Loading
Flowchart 2.9—No Operating System (OS) Loading No OS loading.* Reset power cord in docking device and power outlet. *NOTE: Before beginning troubleshooting, always check cable connections, cable ends, and drives for bent or damaged pins. Maintenance and Service Guide No OS loading from hard drive, go to “Flowchart 2.10—No OS Loading, Hard Drive, Part 1.”...
Page 42 Troubleshooting Flowchart 2.10—No OS Loading, Hard Drive, Part 1 OS not loading from hard drive. Nonsystem disk message? Reseat external hard drive. OS loading? Boot from Check the Setup utility for correct booting order. Boot from hard drive? Done 2–16 Go to “Flowchart 2.11—No OS...
Page 43 Flowchart 2.11—No OS Loading, Hard Drive, Part 2 Continued from “Flowchart 2.10—No OS Loading, Hard Drive, Part 1.” 1. Replace CD or diskette in 2. Replace system drive? Remove diskette and reboot. Boot from hard drive? Boot 2.13—No OS from diskette drive? Diskette Drive.”...
Page 44 Troubleshooting Flowchart 2.12—No OS Loading, Hard Drive, Part 3 Continued from “Flowchart 2.11—No OS Loading, Hard Drive, Part 2.” System files on hard drive? Virus hard drive? Run SCANDISK and check for bad sectors. Can bad sectors be fixed? Fix bad sectors.
Page 45: Flowchart 2.13—No Os Loading, Diskette Drive
Flowchart 2.13—No OS Loading, Diskette Drive OS not loading from diskette drive. Nonsystem disk message? Boot from another device? Diskette drive enabled in the Setup Utility? Is diskette drive boot order correct? Change boot priority using 2.17—Nonfunctioning the Setup Utility. Maintenance and Service Guide Reseat diskette drive.
Page 46 Troubleshooting Flowchart 2.14—No OS Loading, Optical Drive No OS loading from CD-ROM or DVD-ROM drive. Boots from CD or DVD? Reseat drive. 2–20 Disc in drive? Install bootable disc. bootable disc. Done Boots from CD or DVD? Booting from another 2.17—Nonfunctioning device? Reset the computer.
Page 47 Flowchart 2.15—No Audio, Part 1 No audio. Computer in docking device (if applicable)? Go to “Flowchart 2.16—No Audio, Part 2.” 2.17—Nonfunctioning Maintenance and Service Guide Turn up audio internally or externally. Undock docking device. Go to “Flowchart Device.” Troubleshooting Audio? Done Go to Internal...
Page 48 Troubleshooting Flowchart 2.16—No Audio, Part 2 Continued from “Flowchart 2.15—No Audio, Part 1.” Audio driver in OS configured? Correct drivers for application? Connect to external speaker. Audio? 2–22 Reload audio drivers. Load drivers and set configuration in OS. Replace audio board and speaker connections...
Page 49 Flowchart 2.17—Nonfunctioning Device Unplug the nonfunctioning device from the computer and inspect cables and plugs for bent or broken pins or Clear CMOS. Reattach device. Close computer, plug in power, and reboot. Device boots properly? Done Maintenance and Service Guide Nonfunctioning device.
Page 50 Troubleshooting Flowchart 2.18—Nonfunctioning Keyboard Keyboard not operating properly. Connect computer to good external keyboard. External device works? Reseat internal keyboard connector (if applicable). Done 2–24 Replace system board. Replace internal keyboard or cable. Replace system board. Done Maintenance and Service Guide...
Page 51 Flowchart 2.19—Nonfunctioning Pointing Device Pointing device not operating properly. Connect computer to good external pointing device. External device works? Reseat internal pointing device connector (if applicable). Done Maintenance and Service Guide Replace system board. Replace internal pointing device or cable. Replace system board.
Page 52 Troubleshooting Flowchart 2.20—No Network/Modem Connection No network or modem connection. Network or modem jack active? Digital line? NIC/modem configured in OS? Disconnect all power from the computer and open. Reseat NIC/modem (if applicable). 2–26 Replace jack or have jack activated. Connect to nondigital line.
Page 53: Illustrated Parts Catalog
Illustrated Parts Catalog This chapter provides an illustrated parts breakdown and a reference for spare part numbers. 3.1 Serial Number Location When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer. Serial Number Location Maintenance and Service Guide 3–1...
Page 54: Computer Major Components
Illustrated Parts Catalog 3.2 Computer Major Components Computer Major Components 3–2 Maintenance and Service Guide...
Page 55 15.4-inch, WUXGA 15.4-inch, WSXGA 15.4-inch, WXGA+ Switch covers (include LED board and LED board cable) For use with nw8440 and nc8430 models For use with nx8420 models Keyboards Keyboard with pointing stick (includes keyboard and pointing stick cables) for use in:...
Page 56 Illustrated Parts Catalog Computer Major Components 3–4 Maintenance and Service Guide...
Page 57 Spare Parts: Computer Major Components (Continued) Item Description Keyboards (Continued) Keyboard without pointing stick (includes keyboard cable) for use in: Belgium Brazil The Czech Republic Denmark France French Canada Germany Greece Hungary Iceland Internationally Israel Italy Japan Korea Latin America TouchPads With 3 TouchPad buttons With 2 TouchPad buttons...
Page 58 Illustrated Parts Catalog Computer Major Components 3–6 Maintenance and Service Guide...
Page 59 Top covers (include speakers) For use with nw8440 models with fingerprint reader For use with nw8440 models without fingerprint reader For use with nc8430 and nx820 models with fingerprint reader For use with nc8430 and nx8420 models without fingerprint reader...
Page 60 Illustrated Parts Catalog Computer Major Components 3–8 Maintenance and Service Guide...
Page 61 Spare Parts: Computer Major Components (Continued) Item Description Mini Card modules 802.11b/g HS WLAN module for use in North America 802.11b/g HS WLAN module for use in the countries listed below. These countries are categorized as the rest of the world (ROW). China Ecuador Haiti...
Page 62 Illustrated Parts Catalog Computer Major Components 3–10 Maintenance and Service Guide...
Page 63 Spare Parts: Computer Major Components (Continued) Item Description Mini Card modules (Continued) 802.11a/b/g GL WLAN module for use in the countries listed below. These countries are categorized as most of the world (MOW 2). Aruba Austria Azerbaijan Bahrain Belgium Bermuda Bulgaria Cayman Islands Columbia...
Page 64 Illustrated Parts Catalog Computer Major Components 3–12 Maintenance and Service Guide...
Page 65 Spare Parts: Computer Major Components (Continued) Item Description System board (includes RTC battery and 256-MB of video memory) Memory modules, 1-DIMM PC2-5300 2048-MB 1024-MB 512-MB 256-MB Modem module System board frame Serial connector module and cable Optical drives 8X Max DVD±RW and CD-RW Double-Layer Combo Drive 4X Max DVD±RW and CD-RW Double-Layer Combo Drive...
Page 66 Illustrated Parts Catalog Computer Major Components 3–14 Maintenance and Service Guide...
Page 67 Spare Parts: Computer Major Components (Continued) Item Description 8-cell, 4.8-AH battery pack Hard drives 7200 rpm 100-GB 80-GB Maintenance and Service Guide Table 3-1 5400 rpm 416415-001 120-GB 417507-001 100-GB 80-GB 60-GB Illustrated Parts Catalog Spare Part Number 372771-001 416414-001 413853-001 413852-001 413851-001...
Page 68: Plastics Kit
Illustrated Parts Catalog 3.3 Plastics Kit 3–16 Maintenance and Service Guide...
Page 69 Spare Part Number Information Item Description Plastics Kit Includes: Memory module compartment cover (includes 1 captive screw, captured by C clip) Bluetooth module cover (includes 1 captive screw, captured by C clip) Computer feet (8) PC Card slot bezel Hard drive cover (includes 2 captive screws, captured by C clips) Maintenance and Service Guide Table 3-2 Plastics Kit...
Page 70: Mass Storage Devices
Illustrated Parts Catalog 3.4 Mass Storage Devices 3–18 Maintenance and Service Guide...
Page 71 Spare Part Number Information Item Description Hard drives (include frame and connector) 7200 rpm 100-GB 80-GB Optical drives (include bezel) 8X Max DVD±RW and CD-RW Double-Layer Combo Drive 4X Max DVD±RW and CD-RW Double-Layer Combo Drive 24X Max DVD/CD-RW Combo Drive 8X Max DVD-ROM drive Maintenance and Service Guide Table 3-3...
Page 72: Miscellaneous (Not Illustrated)
HP Extended Life Battery HP Docking Station HP Docking Station Miscellaneous Plastics Kit Devices for use in External MultiBay II and HP Docking Station 2X Max DVD±RW and CD-RW Double-Layer Combo Drive 5400-rpm, 80-GB hard drive MultiBay 8X DVD-ROM Drive...
Page 73 Miscellaneous (Not Illustrated) Spare Part Information (Continued) Description Power cords: For use in the United States For use in Australia For use in Europe, the Middle East, and Africa For use in the United Kingdom For use in Italy For use in Denmark For use in Brazil For use in Japan For use in Korea...
Page 74: Sequential Part Number Listing
8-cell, 4.8-AH battery pack 373314-001 MultiBay 8X DVD-ROM Drive for use in External MultiBay II and HP Docking Station 373315-001 MultiBay 24X DVD/CD-RW Combo Drive for use in External MultiBay II and HP Docking Station 3–22 Table 3-5 Maintenance and Service Guide...
Page 75 5400-rpm, 80-GB hard drive for use in External MultiBay II and HP Docking Station 375557-001 2X Max DVD±RW and CD-RW Double-Layer Combo Drive for use in External MultiBay II and HP Docking Station 380089-001 HP Docking Station Miscellaneous Plastics Kit 382675-001...
Page 76 Illustrated Parts Catalog Sequential Part Number Listing (Continued) Spare Part Number Description 407575-001 802.11a/b/g GL WLAN module for use in the MOW1 countries listed below: Antigua & Barbuda Argentina Australia Bahamas Barbados Brunei 407575-002 802.11a/b/g GL WLAN module for use in the MOW2 countries listed below: Aruba Austria...
Page 77 802.11a/b/g GL WLAN module for use in the ROW countries listed below: China Ecuador Haiti 407575-291 802.11a/b/g GL WLAN module for use in Japan 413267-001 HP Docking Station 413683-001 Intel Core Duo T2300 (1.67-GHz) processor (includes thermal paste) 413684-001 Intel Core Duo T2400 (1.83-GHz) processor (includes thermal paste) 413685-001 Intel Core Duo T2500 (2.00-GHz) processor (includes...
Page 78 1-DIMM, PC2-5300, 512 MB memory module 414046-001 1-DIMM, PC2-5300, 1024 MB memory module 416042-001 Top cover for use with nc8430 and nx8420 models with fingerprint reader (includes speakers) 416397-001 System board (includes RTC battery and 256 MB of video memory)
Page 79 Sequential Part Number Listing (Continued) Spare Part Number Description 416411-001 15.4-inch, WXGA display assembly (includes wireless antenna transceivers and cables) 416412-001 15.4-inch, WSXGA+ display assembly (includes wireless antenna transceivers and cables) 416413-001 15.4-inch, WUXGA display assembly (includes wireless antenna transceivers and cables) 416414-001 5400-rpm, 120-GB hard drive 416415-001...
Page 80 Illustrated Parts Catalog Sequential Part Number Listing (Continued) Spare Part Number Description 416416-201 Keyboard with pointing stick for use in Brazil 416416-211 Keyboard with pointing stick for use in Hungary 416416-221 Keyboard with pointing stick for use in the Czech Republic 416416-231 Keyboard with pointing stick for use in Slovakia 416416-251...
Page 81 Sequential Part Number Listing (Continued) Spare Part Number Description 416417-111 Keyboard without pointing stick for use in Switzerland 416417-121 Keyboard without pointing stick for use in French Canada 416417-131 Keyboard without pointing stick for use in Portugal 416417-141 Keyboard without pointing stick for use in Turkey 416417-151 Keyboard without pointing stick for use in Greece 416417-161...
Page 82 Illustrated Parts Catalog Sequential Part Number Listing (Continued) Spare Part Number Description 416421-001 90-watt AC adapter 417505-001 1-DIMM, PC2-4200, 2048 MB memory module 417506-001 1-DIMM, PC2-5300, 2048 MB memory module 417507-001 7200-rpm, 80-GB hard drive 418807-001 Top cover for use with nw8440 models without fingerprint reader (includes speakers) 3–30 Table 3-5...
Page 83: Removal And Replacement Preliminaries
Removal and Replacement This chapter provides essential information for proper and safe removal and replacement service. 4.1 Tools Required You will need the following tools to complete the removal and replacement procedures: ■ Magnetic screwdriver ■ Phillips P0 and P1 screwdrivers ■...
Page 84: Service Considerations
Removal and Replacement Preliminaries 4.2 Service Considerations The following sections include some of the considerations that you should keep in mind during disassembly and assembly procedures. ✎ As you remove each subassembly from the computer, place the subassembly (and all accompanying screws) away from the work area to prevent damage.
Page 85: Preventing Damage To Removable Drives
4.3 Preventing Damage to Removable Drives Removable drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a removable drive, or loss of information, observe the following precautions: ■ Before removing or inserting a hard drive, shut down the computer.
Page 86: Preventing Electrostatic Damage
Removal and Replacement Preliminaries 4.4 Preventing Electrostatic Damage Many electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.
Page 87: Packaging And Transporting Precautions
4.5 Packaging and Transporting Precautions Use the following grounding precautions when packaging and transporting equipment: ■ To avoid hand contact, transport products in static-safe containers, such as tubes, bags, or boxes. ■ Protect all electrostatic-sensitive parts and assemblies with conductive or approved containers or packaging. ■...
Page 88: Workstation Precautions
Removal and Replacement Preliminaries 4.6 Workstation Precautions Use the following grounding precautions at workstations: ■ Cover the workstation with approved static-shielding material (refer to ■ Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. ■...
Page 89: Grounding Equipment And Methods
4.7 Grounding Equipment and Methods Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation. ■ When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a minimum of one megohm ±10% resistance in the ground cords.
Page 90: Typical Electrostatic Voltage Levels
Removal and Replacement Preliminaries Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities. Typical Electrostatic Voltage Levels Event Walking across carpet Walking across vinyl floor Motions of bench worker Removing DIPS from plastic tube Removing DIPS from vinyl tray Removing DIPS from Styrofoam Removing bubble pack from PCB Packing PCBs in foam-lined box...
Page 91: Removal And Replacement Procedures
Removal and Replacement Procedures This chapter provides removal and replacement procedures. There are as many as 72 screws and screw locks, in 14 different sizes and types, that may have to be removed, replaced, or loosened when servicing the computer. Make special note of each screw and screw lock size and location during removal and replacement.
Page 92: Serial Number
Removal and Replacement Procedures 5.1 Serial Number Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the computer. Serial Number Location 5–2 Maintenance and Service Guide...
Page 93: Disassembly Sequence Chart
5.2 Disassembly Sequence Chart Use the chart below to determine the section number to be referenced when removing computer components. Disassembly Sequence Chart Section Description Preparing the Computer for Disassembly Battery Hard Drive Computer Feet Optical Drive External Memory Module Bluetooth Module Keyboard 5.10...
Page 94 Removal and Replacement Procedures Disassembly Sequence Chart (Continued) Section Description 5.13 Internal Memory Module 5.14 RTC Battery 5.15 TouchPad 5.16 Mini Card Module 5.17 Switch Cover 5.18 Display Assembly Å To prevent an unresponsive system and the display of a warning message, install only a Mini Card device authorized for use in your computer by the governmental agency that regulates wireless devices in your country.
Page 95: Preparing The Computer For Disassembly
5.3 Preparing the Computer for Disassembly Before you begin any removal or installation procedures: 1. Shut down the computer. If you are unsure whether the computer is off or in hibernation, turn the computer on, and then shut it down through the operating system. 2.
Page 96: Hard Drive
Removal and Replacement Procedures 5.4 Hard Drive Hard Drive Spare Part Number Information 7200 rpm 100 GB 80 GB 1. Prepare the computer for disassembly 5–6 5400 rpm 416415-001 120 GB 417507-001 100 GB 80 GB 60 GB 416414-001 413853-001 413852-001 413851-001 (Section...
Page 97 2. Loosen the two Phillips PM2.0×5.0 screws 1 that secure the hard drive cover to the computer. 3. Lift the left side of the hard drive cover 2 and swing it to the right. 4. Remove the hard drive cover. ✎...
Page 98 Removal and Replacement Procedures 5. Loosen the Phillips PM2.5×13.0 spring-loaded hard drive retention screw 1. 6. Grasp the mylar tab 2 on the left side of the hard drive and slide the hard drive to the right 3 to disconnect it from the system board.
Page 99 8. Remove the four Phillips PM3.0×3.0 screws 1 that secure the hard drive frame to the hard drive. 9. Lift the frame 2 straight up to remove if from the hard drive. Removing the Hard Drive Frame Reverse the above procedure to reassemble and install the hard drive.
Page 100: Computer Feet
Removal and Replacement Procedures 5.5 Computer Feet The computer feet are adhesive-backed rubber pads. The feet are included in the Plastics Kit, spare part number 417527-001. Replacing the Computer Feet 5–10 Maintenance and Service Guide...
Page 101: Optical Drive
5.6 Optical Drive Optical Drive Spare Part Number Information 8X Max DVD±RW and CD-RW Double-Layer Combo Drive 4X Max DVD±RW and CD-RW Double-Layer Combo Drive 24X Max DVD/CD-RW Combo Drive 8X Max DVD-ROM drive 1. Prepare the computer for disassembly 2.
Page 102 Removal and Replacement Procedures 6. If it is necessary to replace the optical drive bracket, remove the two Phillips PM2.0×3.0 screws 1 that secure the bracket to the optical drive. 7. Remove the optical drive bracket 2. Removing the Optical Drive Bracket Reverse the above procedure to reassemble and install an optical drive.
Page 103: External Memory Module
5.7 External Memory Module Memory Module Spare Part Number Information PC2-5300 2048 MB 1024 MB 512 MB 256 MB 1. Prepare the computer for disassembly (refer to 2. Position the computer with the front toward you. Maintenance and Service Guide Removal and Replacement Procedures PC2-4200 417506-001...
Page 104 Removal and Replacement Procedures 3. Loosen the Phillips PM2.0×4.0 screw 1 that secures the memory module compartment cover to the computer. 4. Lift the right side of the cover 2 and swing it up and to the left. 5. Remove the memory module compartment cover. ✎...
Page 105 6. Spread the retaining tabs 1 on each side of the memory module socket to release the memory module. (The side of the module opposite the socket rises away from the computer.) 7. Slide the module 2 away from the socket at an angle. 8.
Page 106: Bluetooth Module
Removal and Replacement Procedures 5.8 Bluetooth Module Bluetooth Module Spare Part Number Information Bluetooth module (includes Bluetooth module cable) 1. Prepare the computer for disassembly (refer to 2. Position the computer with the right side toward you. 3. Loosen the Phillips PM1.5×3.0 screw 1 that secures the Bluetooth module cover to the computer.
Page 107 6. Remove the two Phillips PM1.5×3.0 screws 1 that secure the Bluetooth module to the Bluetooth module cover. 7. Remove the Bluetooth module 2 from the cover. 8. Disconnect the Bluetooth module cable 3 from the module. Removing the Bluetooth Module Cover Reverse the above procedure to install a Bluetooth module.
Page 108: Keyboard
Removal and Replacement Procedures 5.9 Keyboard Keyboard Spare Part Number Information Keyboards with pointing stick for use in: Belgium Brazil The Czech Republic Denmark France French Canada Germany Greece Hungary Iceland Internationally Israel Italy Japan Korea 5–18 416416-A41 Latin America 416416-201 Norway 416416-221...
Page 109 Keyboard Spare Part Number Information (Continued) Keyboards without pointing stick for use in: Belgium Brazil The Czech Republic Denmark France French Canada Germany Greece Hungary Iceland Internationally Israel Italy Japan Korea 1. Prepare the computer for disassembly 2. Position the computer with the front toward you. Maintenance and Service Guide Removal and Replacement Procedures 416417-A41...
Page 110 Removal and Replacement Procedures 3. Remove the two Torx8 T8M2.5×10.0 screws that secure the keyboard to the computer. Removing the Keyboard Screws 5–20 Maintenance and Service Guide...
Page 111 4. Turn the computer display side up with the front toward you. 5. Open the computer as far as possible. 6. Slide the four keyboard retention tabs 1 toward you. The tabs are located between the keys, between the keys. delete 7.
Page 112 Removal and Replacement Procedures 8. Release the zero insertion force (ZIF) connector 1 to which the keyboard cable is connected and disconnect the keyboard cable 2 from the system board. ✎ Step 9 applies to models with keyboards with pointing sticks. 9.
Page 113: Fan Assembly
Removal and Replacement Procedures 5.10 Fan Assembly Fan Assembly Spare Part Number Information Fan assembly 416409-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). Maintenance and Service Guide 5–23...
Page 114 Removal and Replacement Procedures 3. Disconnect the fan cable 1 from the system board. ✎ The following screws should be removed, then installed, in the 1, 2, 3, 4 sequence stamped on the fan assembly. 4. Loosen the two Phillips PM2.0×3.0 screws 2 and the two Phillips PM2.5×7.0 screws 3 that secure the fan assembly to the computer.
Page 115 Removal and Replacement Procedures ✎ The thermal paste should be thoroughly cleaned from the surfaces of the video board 1 and video heat sink 2 each time the fan assembly is removed. Thermal paste is included with all fan assembly and system board spare part kits. Replacing the Thermal Paste Maintenance and Service Guide 5–25...
Page 116 Removal and Replacement Procedures ✎ The following screws should be removed, then installed, in the 1, 2, 3, 4 sequence stamped on the thermal plate. 6. Remove the four Torx8 T8M2.5×6.0 screws 1 that secure the thermal plate to the computer. 7.
Page 117 Removal and Replacement Procedures ✎ The thermal paste should be thoroughly cleaned from the surfaces of the thermal plate 1 and video board 2 each time the thermal plate is removed. Replacing the Thermal Paste Reverse the above procedure to install the fan assembly and thermal plate.
Page 118: Heat Sink
Removal and Replacement Procedures 5.11 Heat Sink Heat Sink Spare Part Number Information Heat sink (includes thermal paste) 1. Prepare the computer for disassembly 2. Release the keyboard 3. Remove the fan assembly 5–28 (Section (Section 5.9). (Section 5.10). Maintenance and Service Guide 416408-001 5.3).
Page 119 ✎ The following screws should be loosened and installed in the 1, 2, 3, 4 sequence stamped on the heat sink. 4. Loosen the four Phillips PM2.5×8.0 shoulder screws 1 that secure the heat sink to the computer. ✎ Due to the adhesive quality of the thermal paste located between the heat sink and processor, it may be necessary to move the heat sink from side to side to detach the heat sink from the processor.
Page 120 Removal and Replacement Procedures ✎ The thermal paste should be thoroughly cleaned from the surfaces of the heat sink 1 and processor 2 each time the heat sink is removed. Thermal paste is included with all heat sink and processor spare part kits. Replacing the Thermal Paste Reverse the above procedure to install the heat sink.
Page 121: Processor
5.12 Processor Processor Spare Part Number Information Intel Core Duo T2600 (2.16-GHz) processor Intel Core Duo T2500 (2.00-GHz) processor Intel Core Duo T2400 (1.83-GHz) processor Intel Core Duo T2300 (1.67-GHz) processor 1. Prepare the computer for disassembly remove the following components: a.
Page 122 Removal and Replacement Procedures 2. Use a flat-bladed screwdriver to turn the processor locking screw 1 one-quarter turn counterclockwise until you hear a click. 3. Lift the processor 2 straight up and remove it . ✎ The gold triangle 3 on the processor should be aligned with the triangle icon 4 embossed on the processor socket when you install the processor.
Page 123: Internal Memory Module
5.13 Internal Memory Module Memory Module Spare Part Number Information PC2-5300 2048 MB 1024 MB 512 MB 256 MB 1. Prepare the computer for disassembly 2. Release the keyboard Maintenance and Service Guide Removal and Replacement Procedures PC2-4200 417506-001 2048 MB 414046-001 1024 MB 414045-001...
Page 124 Removal and Replacement Procedures 3. Spread the retaining tabs 1 on each side of the memory module socket to release the memory module board. (The side of the module opposite the socket rises away from the computer.) 4. Slide the module away from the socket at an angle 2. 5.
Page 125: Rtc Battery
5.14 RTC Battery ✎ The RTC battery is included in the Plastics Kit, spare part number 417527-001. 1. Prepare the computer for disassembly 2. Release the keyboard 3. Remove the RTC battery from the clip in the top cover. Removing the RTC Battery Reverse the above procedure to install an RTC battery.
Page 126: Touchpad
Removal and Replacement Procedures 5.15 TouchPad TouchPad Spare Part Number Information TouchPad with 3 TouchPad buttons TouchPad with 2 TouchPad buttons 1. Prepare the computer for disassembly 2. Remove the keyboard 3. Turn the computer upside down with the front toward you. 4.
Page 127 Removal and Replacement Procedures 5. Turn the computer display-side up with the front toward you. 6. Open the computer as far as possible. 7. Lift up on the rear edge of the TouchPad 1 until it disengages from the computer. 8.
Page 128 Removal and Replacement Procedures 9. Disconnect the TouchPad cable 1 from the system board. 10. Remove the TouchPad 2. Removing the TouchPad Reverse the above procedure to install the TouchPad. 5–38 Maintenance and Service Guide...
Page 129: Mini Card Module
5.16 Mini Card Module Spare Part Number Information 802.11 b/g HS WLAN module for use in North America 802.11 b/g HS WLAN module for use in the ROW countries listed below. China Ecuador Haiti 802.11 b/g HS WLAN module for use in Japan 802.11 b/g LJ WLAN module for use in North America 802.11 b/g LJ WLAN module for use in the ROW countries listed below.
Page 130 Removal and Replacement Procedures Spare Part Number Information (Continued) 802.11 a/b/g GL WLAN module for use in the MOW2 countries listed below: Aruba Austria Azerbaijan Bahrain Belgium Bermuda Bulgaria Cayman Islands Columbia Croatia Cyprus Czech Republic Denmark Egypt El Salvador 802.11 a/b/g GL WLAN module for use in the ROW countries listed below.
Page 131 4. Make note of which antenna cable is attached to which antenna clip on the Mini Card module before disconnecting the cables, then disconnect the auxiliary and main antenna cables 1 from the Mini Card module. 5. Remove the two Phillips PM2.0×4.0 screws 2 that secure the Mini Card module to the computer.
Page 132: Switch Cover
Removal and Replacement Procedures 5.17 Switch Cover Switch Cover Spare Part Number Information For use with nw8440 and nc8430 models For use with nx8420 models ✎ Both switch cover spare part kits include the LED board and LED board cable.
Page 133 5. Turn the computer display-side up with the front toward you. 6. Open the computer as far as possible. 7. Use a flat-bladed screwdriver to lift up the left and right hinge cover sections of the switch cover 1 to detach it from the computer.
Page 134 Removal and Replacement Procedures 9. Disconnect the LED board cable 1 from the system board. 10. Remove the switch cover 2. Removing the Switch Cover Reverse the above procedure to install the switch cover. 5–44 Maintenance and Service Guide...
Page 135: Display Assembly
5.18 Display Assembly Display Assembly Spare Part Number Information 15.4-inch, WUXGA 15.4-inch, WSXGA 15.4-inch, WXGA+ 1. Prepare the computer for disassembly and remove the following components: a. Keyboard b. Switch cover c. TouchPad Maintenance and Service Guide Removal and Replacement Procedures (Section 5.9) (Section...
Page 136 Removal and Replacement Procedures 2. Make note of which antenna cable is attached to which antenna clip on the Mini Card module before disconnecting the cables, then disconnect the wireless antenna cables 1 from the Mini Card module. 3. Remove the wireless antenna cables from the top cover clips (2 and 3) through which they are routed.
Page 137 Removal and Replacement Procedures 5. Remove the two Torx8 T8M2.5×10.0 screws 1 and the two Phillips PM2.0×2.0 screws 2 that secure the display assembly to the computer. Removing the Display Assembly Screws Maintenance and Service Guide 5–47...
Page 138 Removal and Replacement Procedures 6. Position the computer with the rear panel toward you. 7. Remove the four Torx8 T8M2.5×10.0 screws 1 that secure the display assembly to the computer. 8. Lift the display assembly 2 straight up to remove it. Removing the Display Assembly Reverse the above procedure to install the display assembly.
Page 139: Top Cover
Top Cover Spare Part Number Information For use with nw8440 models with fingerprint reader For use with nw8440 models without fingerprint reader For use with nc8430 and nx8420 models with fingerprint reader For use with nc8430 and nx8420 models without fingerprint reader Fingerprint reader board with cable 1.
Page 140 Removal and Replacement Procedures 3. Remove the two rubber screw covers 1 and the eleven Torx8 T8M2.5×10.0 screws 2 that secure the top cover to the computer. ✎ The rubber screw covers are available in the Screw Kit, spare part number 416419-001. Removing the Top Cover Screws, Part 1 5–50 Maintenance and Service Guide...
Page 141 4. Turn the computer right-side up with the front toward you. 5. Disconnect the speaker cable 1 from the system board. ✎ Step 6 applies only to computer models with a fingerprint reader. 6. Disconnect the fingerprint reader cable 2 from the system board.
Page 142 Removal and Replacement Procedures 8. Lift the front edge of the top cover 1 until it disengages from the base enclosure. 9. Lift the top cover 2 straight up and remove it. Removing the Top Cover Reverse the above procedure to install the top cover. 5–52 Maintenance and Service Guide...
Page 143: Modem Module
5.20 Modem Module Modem Module Spare Part Number Information Modem module 1. Prepare the computer for disassembly and remove the following components: a. Hard drive b. Optical drive c. Keyboard d. Switch cover e. TouchPad f. Display assembly g. Top cover Maintenance and Service Guide Removal and Replacement Procedures (Section...
Page 144 Removal and Replacement Procedures 2. Remove the two Phillips PM2.5×4.0 screws 1 that secure the modem board to the system board. 3. Lift the right side of the modem module 2 to disconnect it from the system board. 4. Disconnect the modem cable 3 from the modem module. 5.
Page 145: System Board
5.21 System Board System Board Spare Part Number Information System board (includes RTC battery and 256-MB of video memory) ✎ When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ■...
Page 146 Removal and Replacement Procedures 1. Prepare the computer for disassembly remove the following components: a. Hard drive b. Optical drive c. Bluetooth module d. Keyboard e. Fan assembly f. Heat sink g. TouchPad h. Switch cover i. Display assembly j. Top cover 2.
Page 147 Removal and Replacement Procedures 3. Disconnect the following cables from the system board: 1 Serial connector module cable 2 Modem cable 3 USB board cable 4 Audio board cable 5 Modem cable Disconnecting the System Board Cables Maintenance and Service Guide 5–57...
Page 148 Removal and Replacement Procedures 4. Remove the following: 1 Two Torx T8M2.5×6.0 screws 2 Two Torx T8M2.5×4.0 screws 3 Two HM5.0×10.0 screw locks on each side of the external monitor connector Removing the System Board Screws and Screw Locks 5–58 Maintenance and Service Guide...
Page 149 5. Remove the modem cable 1 from the clip in the base enclosure. 6. Remove the modem cable 2 from the clips in the system board. 7. Remove the modem connector 3 from the clip in the base enclosure. Releasing the System Board, Part 1 Maintenance and Service Guide Removal and Replacement Procedures 5–59...
Page 150 Removal and Replacement Procedures 8. Flex the right side of the base enclosure 1 until the USB 2, 1394 3, and RJ-45 connectors 4 are clear of the base enclosure. 9. Lift the left side of the system board 5 until it rests at an angle.
Page 151 10. Lift the front edge of the system board 1 until it rests at an angle. 11. Slide the system board 2 forward until the rear-right section of the system board 3 is clear of the screw boss 4 on the system board frame.
Page 152: System Board Frame
Removal and Replacement Procedures 5.22 System Board Frame System Board Frame Spare Part Number Information System board frame (includes modem cable) 1. Prepare the computer for disassembly remove the following components: a. Hard drive b. Optical drive c. Bluetooth module d.
Page 153 3. Remove the two Hex HM5.0×12.0 screw locks 1 on each side of the serial connector. 4. Remove the three Torx8 T8M2.5×6.0 screws 2 that secure the system board frame to the base enclosure. 5. Remove the audio board and USB board cables 3 from the base enclosure.
Page 154 Removal and Replacement Procedures 8. If it is necessary to replace the modem cable, remove the modem connector and cable 1 from the clips 2 in the system board frame. Removing the Modem Cable Reverse the above procedures to install the system board frame. 5–64 Maintenance and Service Guide...
Page 155: Serial Connector Module
5.23 Serial Connector Module Serial Connector Module Spare Part Number Information Serial connector module and cable 1. Prepare the computer for disassembly remove the following components: a. Hard drive b. Optical drive c. Bluetooth module d. Keyboard e. Fan assembly f.
Page 156 Removal and Replacement Procedures 3. Remove the serial connector module cable 1 from the clips in the system board frame. 4. Remove the serial connector module 2 from the system board frame. Removing the Serial Connector Module and Cable Reverse the above procedure to install the serial connector module.
Page 157: Usb/Audio Board
5.24 USB/Audio Board USB/Audio Board Spare Part Number Information USB/audio board (includes USB board cable and audio board cable) 1. Prepare the computer for disassembly remove the following components: a. Hard drive b. Optical drive c. Bluetooth module d. Keyboard e.
Page 158 Removal and Replacement Procedures 3. Remove the two Torx8 T8M2.5×4.0 screws 1 that secure the USB/audio board to the base enclosure. 4. Lift the left side of the USB/audio board 2 to disengage it from the base enclosure. Removing the USB/Audio Board Reverse the above procedure to install the USB/audio board.
Page 159 This chapter provides physical and performance specifications. Dimensions Height (front to back) Width Depth Weight Input Power Operating voltage Operating current Temperature Operating (not writing to optical disc) Operating (writing to optical disc) Nonoperating Maintenance and Service Guide Specifications Table 6-1 Computer Metric 2.8 to 3.3 cm...
Page 160 Specifications Relative humidity (noncondensing) Operating Nonoperating Maximum altitude (unpressurized) Operating (14.7 to 10.1 psia) Nonoperating (14.7 to 4.4 psia) Shock Operating Nonoperating Random Vibration Operating Nonoperating ✎ Applicable product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. 6–2 Table 6-1 Computer (Continued)
Page 161 Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle Maintenance and Service Guide Table 6-2 15.4-inch, WUXGA+WVA 20.7 cm 33.1 cm 39.1 cm Up to 16.8 million 200:1 180 nits typical 0.172 ×...
Page 162 Specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle 6–4 Table 6-3 15.4-inch, WSXGA+WVA 20.7 cm 33.1 cm 39.1 cm Up to 16.8 million 200:1 180 nits typical 0.197 ×...
Page 163 Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle Maintenance and Service Guide Table 6-4 15.4-inch, WXGA+WVA 20.7 cm 33.1 cm 39.1 cm Up to 16.8 million 200:1 180 nits typical 0.259 ×...
Page 164: Hard Drives
Specifications Dimensions Height Width Weight Interface type Transfer rate Synchronous (maximum) Security Seek times (typical read, including setting) Single track Average Maximum † Logical blocks Disc rotational speed Operating temperature ✎ Certain restrictions and exclusions apply. Consult Customer Care for details. *1 GB = 1 billion bytes when referring to hard drive storage capacity.
Page 165 DVD±RW and CD-RW Double-Layer Combo Drive Applicable disc Center hole diameter Disc diameter Standard disc Mini disc Maintenance and Service Guide Table 6-6 Read: DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2)
Page 166 Specifications DVD±RW and CD-RW Double-Layer Combo Drive (Continued) Disc thickness Track pitch Access time Random Full stroke Audio output level Cache buffer Data transfer rate CD-R (16X) CD-RW (8X) CD-ROM (24X) DVD (8X) DVD-R (4X) DVD-RW (2X) Multiword DMA mode 2 Startup time Stop time 6–8...
Page 167 DVD-ROM drive Applicable disc Center hole diameter Disc diameter Standard disc Mini disc Maintenance and Service Guide Table 6-7 DVD/CD-RW Combo Drive Read: DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2)
Page 168 Specifications DVD/CD-RW Combo Drive (Continued) Disc thickness Track pitch Access time Random Full stroke Audio output level Cache buffer Data transfer rate CD-R (24X) CD-RW (10X) CD-ROM (24X) DVD (8X) Multiword DMA mode 2 Startup time Stop time 6–10 Table 6-7 1.2 mm (0.047 in) 0.74 µm <...
Page 169 Applicable disc Center hole diameter Disc diameter Standard disc Mini disc Disc thickness Track pitch Access time Random Full stroke Audio output level Cache buffer Data transfer rate CD-R (24X) CD-RW (10X) CD-ROM (24X) DVD (8X) Multiword DMA mode 2 Startup time Stop time Maintenance and Service Guide...
Page 170: System Dma
Specifications Hardware DMA DMA0 DMA1* DMA2* DMA3 DMA4 DMA5* DMA6 DMA7 *PC Card controller can use DMA 1, 2, or 5. 6–12 Table 6-9 System DMA System Function Not applicable Not applicable Not applicable Not applicable Direct memory access controller Available for PC Card Not assigned Not assigned...
Page 171: System Interrupts
Hardware IRQ IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5* IRQ6 IRQ7* IRQ8 IRQ9* IRQ10* Maintenance and Service Guide Table 6-10 System Interrupts System Function System timer Standard 101-/102-Key or Microsoft Natural Keyboard Cascaded Intel 82801DB/DBM USB2 Enhanced Host Controller—24CD COM1 Conexant AC—Link Audio Intel 82801DB/DBM SMBus Controller—24C3 Data Fax Modem with SmartCP Diskette drive...
Page 172 Specifications System Interrupts (Continued) IRQ11 IRQ12 IRQ13 IRQ14 IRQ15 *Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none. ✎ PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port may assert IRQ3 or IRQ4. 6–14 Table 6-10 Intel USB EHCI controller—24CD...
Page 173 I/O Address (hex) 000 - 00F 010 - 01F 020 - 021 022 - 024 025 - 03F 02E - 02F 040 - 05F 044 - 05F 062 - 063 065 - 06F 070 - 071 072 - 07F 080 - 08F 090 - 091 093 - 09F 0A0 - 0A1...
Page 174 Specifications System I/O Addresses (Continued) I/O Address (hex) 0A2 - 0BF 0C0 - 0DF 0E0 - 0EF 0F0 - 0F1 0F2 - 0FF 100 - 16F 170 - 177 178 - 1EF 1F0 - 1F7 1F8 - 200 202 - 21F 220 - 22F 230 - 26D 26E - 26...
Page 175 System I/O Addresses (Continued) I/O Address (hex) 2F0 - 2F7 2F8 - 2FF 300 - 31F 320 - 36F 370 - 377 378 - 37F 380 - 387 388 - 38B 38C - 3AF 3B0 - 3BB 3BC - 3BF 3C0 - 3DF 3E0 - 3E1 3E2 - 3E3...
Page 176: System Memory Map
Specifications Size Memory Address 640 KB 00000000-0009FFFF 128 KB 000A0000-000BFFFF 48 KB 000C0000-000CBFFF 160 KB 000C8000-000E7FFF 64 KB 000E8000-000FFFFF 15 MB 00100000-00FFFFFF 58 MB 01000000-047FFFFF 58 MB 04800000-07FFFFFF 2 MB 08000000-080FFFFF 4 GB 08200000-FFFEFFFF 64 KB FFFF0000-FFFFFFFF 6–18 Table 6-12 System Memory Map System Function Base memory...
Page 177: Screw Listing
Screw Listing This appendix provides specification and reference information for the screws used in the computer. All screws listed in this appendix are available in the Screw Kit, spare part number 416419-001. Maintenance and Service Guide A–1...
Page 178 Screw Listing Where used: 4 screws that secure the hard drive frame to the hard drive (documented in Section 5.4) Phillips PM3.0×3.0 Screw Locations A–2 Table A-1 Phillips PM3.0×3.0 Screw Color Qty. Black Length Thread 3.0 mm 3.0 mm Maintenance and Service Guide Head Width 5.0 mm...
Page 179 Phillips PM2.0×5.0 Captive Screw Where used: Two screws that secure the hard drive cover to the computer (screws are captured on the cover by C clips; documented in One screw that secures the memory module compartment cover to the computer (screw is captured on the cover by a C clip; documented in Section 5.7) One screw that secures the Bluetooth module cover to the computer (screw...
Page 180 Screw Listing Phillips PM2.5×13.0 Captive Spring-Loaded Screw Where used: One screw that secures the hard drive to the computer (screw is captured on the cover by a C clip; documented in Phillips PM2.5×13.0 Captive Screw Location A–4 Table A-3 Color Qty.
Page 181 Where used: One screw that secures the optical drive to the computer (documented in Section 5.6) Torx8 T8M2.5×4.0 Screw Location Maintenance and Service Guide Table A-4 Torx8 T8M2.5×4.0 Screw Color Qty. Black Screw Listing Length Thread 4.0 mm 2.5 mm Head Width 5.0 mm...
Page 182 Screw Listing Torx8 T8M2.5×4.0 Screw (Continued) Where used: 5 screws that secure the top cover to the computer (documented in Section 5.19) Torx8 T8M2.5×4.0 Screw Locations A–6 Table A-4 Color Qty. Length Black 4.0 mm Maintenance and Service Guide Head Thread Width 2.5 mm...
Page 183 Torx8 T8M2.5×4.0 Screw (Continued) Where used: Two screws that secure the system board to the computer (documented in Section 5.21) Three screws that secure the system board frame to the computer (documented in Section Torx8 T8M2.5×4.0 Screw Locations Maintenance and Service Guide Table A-4 Color Qty.
Page 184 Screw Listing Torx8 T8M2.5×4.0 Screw (Continued) Where used: 2 screws that secure the USB/audio board to the computer (documented in Section 5.24) Torx8 T8M2.5×4.0 Screw Locations A–8 Table A-4 Color Qty. Length Black 4.0 mm Maintenance and Service Guide Head Thread Width 2.5 mm...
Page 185 Where used: 2 screws that secure the optical drive bracket to the optical drive (documented in Section 5.6) Phillips PM2.0×3.0 Screw Locations Maintenance and Service Guide Table A-5 Phillips PM2.0×3.0 Screw Color Qty. Silver Screw Listing Length Thread 3.0 mm 2.0 mm Head Width...
Page 186 Screw Listing Phillips PM2.0×3.0 Screw (Continued) Where used: 2 captive screws that secure the fan assembly to the computer (documented in Section 5.10) Phillips PM2.0×3.0 Captive Screw Locations A–10 Table A-5 Color Qty. Length Silver 3.0 mm Maintenance and Service Guide Head Thread Width...
Page 187 Where used: 2 screws that secure the Bluetooth module to the Bluetooth module cover (documented in Section Phillips PM1.5×3.0 Screw Locations Maintenance and Service Guide Table A-6 Phillips PM1.5×3.0 Screw Color Qty. Silver 5.8) Screw Listing Length Thread 3.0 mm 1.5 mm Head Width...
Page 188 Screw Listing Where used: Two screws that secure the keyboard to the computer (documented in Section 5.9) One screw that secures the TouchPad to the computer (documented in Section 5.15) Four screws that secure the display assembly to the computer (documented Section 5.18) Torx8 T8M2.5×10.0 Screw Locations...
Page 189 Torx8 T8M2.5×10.0 Screw (Continued) Where used: 2 screws that secure the display assembly to the computer (documented in Section 5.18) Torx8 T8M2.5×10.0 Screw Locations Maintenance and Service Guide Table A-7 Color Qty. Length Black 10.0 mm Screw Listing Head Thread Width 2.5 mm 5.0 mm...
Page 190 Screw Listing Torx8 T8M2.5×10.0 Screw (Continued) Where used: 11 screws that secure the top cover to the computer (documented in Section 5.19) Torx8 T8M2.5×10.0 Screw Locations A–14 Table A-7 Color Qty. Length Black 10.0 mm Maintenance and Service Guide Head Thread Width 2.5 mm...
Page 191 Phillips PM2.5×7.0 Captive Screw Where used: 2 captive screws that secure the fan assembly to the computer (documented in Section 5.10) Phillips PM2.5×7.0 Captive Screw Locations Maintenance and Service Guide Table A-8 Color Qty. Length Silver 7.0 mm Screw Listing Head Thread Width...
Page 192 Screw Listing Phillips PM2.0×8.0 Captive Screw Where used: 4 captive screws that secure the heat sink to the computer (documented in Section 5.11) Phillips PM2.0×8.0 Captive Screw Locations A–16 Table A-9 Color Qty. Length Silver 8.0 mm Maintenance and Service Guide Head Thread Width...
Page 193 Where used: 2 screws that secure the Mini Card module to the computer (documented in Section 5.16) Phillips PM2.0×4.0 Screw Locations Maintenance and Service Guide Table A-10 Phillips PM2.0×4.0 Screw Color Qty. Silver Screw Listing Length Thread 4.0 mm 2.0 mm Head Width 5.0 mm...
Page 194 Screw Listing Where used: 3 screws that secure the switch cover to the computer (documented in Section 5.17) Phillips PM2.0×2.0 Screw Locations A–18 Table A-11 Phillips PM2.0×2.0 Screw Color Qty. Black Length Thread 2.0 mm 2.0 mm Maintenance and Service Guide Head Width 5.0 mm...
Page 195 Phillips PM2.0×2.0 Screw (Continued) Where used: 2 screws that secure the display assembly to the computer (documented in Section 5.18) Phillips PM2.0×2.0 Screw Locations Maintenance and Service Guide Table A-11 Color Qty. Length Black 2.0 mm Screw Listing Head Thread Width 2.0 mm 5.0 mm...
Page 196 Screw Listing Where used: 2 screws that secure the modem module to the computer (documented in Section 5.20) Phillips PM2.5×4.0 Screw Locations A–20 Table A-12 Phillips PM2.5×4.0 Screw Color Qty. Black Length Thread 4.0 mm 2.5 mm Maintenance and Service Guide Head Width 5.0 mm...
Page 197 Hex HM5.0×12.0 Screw Lock Where used: Two screw locks that secure the system board to the computer (documented Section 5.21) Two screw locks that secure the system board frame to the computer (documented in Section Hex HM5.0×12.0 Screw Lock Locations Maintenance and Service Guide Table A-13 Color...
Page 198 Screw Listing Where used: 4 screws that secure the thermal plate to the computer (documented in Section 5.10) Torx8 T8M2.5×6.0 Screw Locations A–22 Table A-14 Torx8 T8M2.5×6.0 Screw Color Qty. Black Length Thread 6.0 mm 2.5 mm Maintenance and Service Guide Head Width 5.0 mm...
Page 199: Safeguarding Your Data
✎ HP installed drivers, utilities, and applications can be copied to a CD or to a DVD using HP Backup and Recovery Manager. ✎ Formatted DVD±RW discs and DVD±RW double-layer discs are not compatible with HP Backup and Recovery Manager.
Page 200: Backing Up The System
This process will take several minutes, depending on the file size and the speed of the computer. To back up specific files or folders: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 2. Click Next.
Page 201: Backing Up The Entire Hard Drive
This process may take over an hour, depending on your computer speed and the amount of data being stored. To back up your entire hard drive: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 2. Click Next.
Page 202 You can schedule recovery points for a specific time or event in your system. To create and schedule a system recovery point: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 2. Click Next.
Page 203: Scheduling Backups
Scheduling Backups To schedule backups: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup Scheduler. The “Backup Scheduler” page opens. 2. Click Next. 3. Schedule system recovery points at specific intervals (now, daily, weekly, or monthly) or at specific events, such as at system start or when you dock to an optional docking station (select models only), by clicking one of the available options.
Page 204: Creating Recovery Discs
After setting up the computer for the first time, you can create a set of recovery discs of the full factory image, using Recovery Media Creator in the HP Backup and Recovery Manager. The recovery discs are used to start up (boot) the computer and recover the operating system and software to factory settings in case of system failure or instability.
Page 205: Performing A Recovery
Recovery Media Creator, you will be prompted to continue the disc creation process where you left off. To create a set of recovery discs: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 2. Click Next.
Page 206: Performing A Recovery From The Hard Drive
Initiating a Recovery in Windows To initiate a recovery in Windows: 1. Back up all personal files. 2. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 3. Click Next. 4. Click Recover important files or the entire system, and then click Next.
Page 207 Careful handling should be exercised when removing these components. ✎ Materials Disposal This HP product contains mercury in the backlight in the display assembly that might require special handling at end-of-life. Disposal of mercury may be regulated because of environmental considerations. For disposal or recycling information, contact your local authorities or the Electronic Industries Alliance (EIA) http://www.eiae.org...
Page 208 Display Component Recycling This appendix provides disassembly instructions for the display assembly. The display assembly must be disassembled to gain access to the backlight 1 and the liquid crystal display (LCD) panel 2. ✎ Disassembly procedures differ from one display assembly to another.
Page 209 Display Component Recycling Perform the following steps to disassemble the display assembly: 1. Remove all screw covers 1 and screws 2 that secure the display bezel to the display assembly. Removing the Display Bezel Screw Covers and Screws Maintenance and Service Guide C–3...
Page 210 Display Component Recycling 2. Lift up and out on the left and right inside edges 1 and the top and bottom inside edges 2 of the display bezel until the bezel disengages from the display assembly. 3. Remove the display bezel 3. Removing the Display Bezel C–4 Maintenance and Service Guide...
Page 211 Display Component Recycling 4. Disconnect all display panel cables 1 from the display inverter and remove the inverter 2. Removing the Display Inverter Maintenance and Service Guide C–5...
Page 212 Display Component Recycling 5. Remove all screws 1 that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly 2 from the display enclosure. Removing the Display Panel Assembly C–6 Maintenance and Service Guide...
Page 213 Display Component Recycling 7. Turn the display panel assembly upside down. 8. Remove all screws that secure the display panel frame to the display panel. Removing the Display Panel Frame s Maintenance and Service Guide C–7...
Page 214 Display Component Recycling 9. Use a sharp-edged tool to cut the tape 1 that secures the sides of the display panel to the display panel frame. 10. Remove the display panel frame 2 from the display panel. Removing the Display Frame C–8 Maintenance and Service Guide...
Page 215 11. Remove the screws 1 that secure the backlight cover to the display panel. 12. Lift the top edge of the backlight cover 2 and swing it forward. 13. Remove the backlight cover. Removing the Backlight Cover Maintenance and Service Guide Display Component Recycling C–9...
Page 216 Display Component Recycling 14. Turn the display panel right side up. 15. Remove the backlight cables 1 from the clip 2 in the display panel. Releasing the Backlight Cables C–10 Maintenance and Service Guide...
Page 217 Display Component Recycling 16. Turn the display panel upside down. 17. Remove the backlight frame from the display panel. Removing the Backlight Frame Maintenance and Service Guide C–11...
Page 218 Display Component Recycling Å WARNING: The backlight contains mercury. Caution should be exercised when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury. 18. Slide the backlight out of the backlight frame. Removing the Backlight C–12 Maintenance and Service Guide...
Page 219 19. Disconnect the display cable 1 from the LCD panel. 20. Remove the screws 2 that secure the LCD panel to the display rear panel. 21. Release the LCD panel 3 from the display rear panel. 22. Release the tape 4 that secures the LCD panel to the display rear panel.
Page 220 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...
Page 221: Connector Pin Assignments
Connector Pin Assignments Signal Audio out, left channel Audio out, right channel Maintenance and Service Guide Table D-1 Audio-Out (Headphone) Signal Ground D–1...
Page 222: Universal Serial Bus
Connector Pin Assignments Signal Audio signal in Audio signal in Signal +5 VDC Data – D–2 Table D-2 Audio-In (Microphone) Table D-3 Universal Serial Bus Signal Ground Signal Data + Ground Maintenance and Service Guide...
Page 223 Signal S-VHS color (C) signal Composite video signal S-VHS intensity (Y) signal S-VHS color ground Maintenance and Service Guide Connector Pin Assignments Table D-4 S-Video-Out Signal TV-CD S-VHS intensity ground Composite video ground D–3...
Page 224: External Monitor
Connector Pin Assignments Signal Red analog Green analog Blue analog Not connected Ground Ground analog Ground analog Ground analog D–4 Table D-5 External Monitor Signal +5 VDC Ground Monitor detect DDC 2B data Horizontal sync Vertical sync DDC 2B clock Maintenance and Service Guide...
Page 225 Signal Unused Ring Maintenance and Service Guide Table D-6 RJ-11 (Modem) Signal Unused Unused Unused Connector Pin Assignments D–5...
Page 226 Connector Pin Assignments Signal Transmit + Transmit – Receive + Unused D–6 Table D-7 RJ-45 (Network) Signal Unused Receive – Unused Unused Maintenance and Service Guide...
Page 227: Power Cord Set Requirements
Power Cord Set Requirements 3-Conductor Power Cord Set The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 or 220 to 240 volts AC. The power cord set included with the computer meets the requirements for use in the country where the equipment is purchased.
Page 228: General Requirements
Power Cord Set Requirements General Requirements The requirements listed below are applicable to all countries. ■ The length of the power cord set must be at least 1.5 m (5.0 ft) and a maximum of 2.0 m (6.5 ft). ■ All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country where the power cord set will be used.
Page 229 Country-Specific Requirements 3-Conductor Power Cord Set Requirements Country/Region Australia Austria Belgium Canada Denmark Finland France Germany Italy Japan ✎ NOTES: 1. The flexible cord must be <HAR> Type HO5VV-F, 3-conductor, 1.0 mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used.
Page 230 Power Cord Set Requirements 3-Conductor Power Cord Set Requirements (Continued) Country/Region Korea The Netherlands Norway People’s Republic of China Sweden Switzerland Taiwan United Kingdom United States ✎ NOTES: 1. The flexible cord must be <HAR> Type HO5VV-F, 3-conductor, 1.0 mm² conductor size.
Page 231 1394 port 1–11 AC adapter, spare part number 3–20 3–30 accessory battery connector 1–19 arrow keys 1–13 audio troubleshooting 2–21 audio-in jack location 1–8 pin assignments D–2 audio-out jack location 1–8 pin assignments D–1 base enclosure, spare part number 3–13 battery removal 5–5 spare part number 3–15...
Page 232 Index computer feet illustrated 3–17 locations 5–10 Computer Setup Advanced Menu 2–4 Main Menu 2–2 overview 2–1 Security Menu 2–3 Tools Menu 2–4 computer specifications 6–1 connector pin assignments audio-in D–2 audio-out D–1 external monitor D–4 headphone D–1 microphone D–2 modem D–5 monitor D–4 network D–6...
Page 233 electrostatic discharge 4–4 4–8 exhaust vents 1–11 expansion product spare part number 3–20 3–25 troubleshooting 2–14 external monitor port location 1–9 pin assignments D–4 External MultiBay II power cable and stand, spare part number 3–20 External MultiBay II, spare part number 3–20 keys 1–13 fan assembly removal 5–23...
Page 234 1–8 pin assignments D–1 heat sink removal 5–28 spare part number 3–7 3–26 5–28 HP Docking Station, spare part number 3–20 HP Extended Life Battery, spare part number 3–20 3–22 I/O address specifications 6–15 Info Center button 1–15 interrupt specifications 6–13...
Page 235 network jack location 1–10 pin assignments D–6 network, troubleshooting 2–26 nonfunctioning device, troubleshooting 2–14 key 1–13 num lock num lock light 1–15 optical drive location 1–8 OS loading problems 2–20 precautions 4–3 removal 5–11 spare part numbers 3–13 3–19 3–20 5–11 specifications 6–7 6–11...
Page 236 Index security cable slot 1–10 serial connector module removal 5–65 spare part number 3–13 3–26 5–65 serial number 3–1 serial port 1–8 service considerations 4–2 smart card slot 1–11 speakers 1–17 specifications computer 6–1 DVD/CD-RW Combo Drive 6–9 DVD±RW and CD-RW Combo Drive 6–7 DVD-ROM drive 6–11 hard drive 6–6...
Page 237 flowcharts 2–5 keyboard 2–24 modem 2–26 network 2–26 nonfunctioning device 2–14 2–23 OS loading 2–15 overview 2–1 pointing device 2–25 power 2–8 video 2–12 Universal Serial Bus (USB) port location 1–8 pin assignments D–2 unknown password 1–4 USB diskette drive, spare part number 3–20 USB/audio board removal 5–67...

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HP Compaq nc8430 Maintenance And Service Manual

1 Product Description

2 Troubleshooting

3 Illustrated Parts Catalog

4 Removal and Replacement Preliminaries

5 Removal and Replacement Procedures

Quick Links

Troubleshooting

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