Compaq nw9440 HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic
Compaq nw9440 - Mobile Workstation Manual
View all Compaq nw9440 manuals
Add to My Manuals
Save this manual to your list of manuals |
Compaq nw9440 manual content summary:
- Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 1
Maintenance and Service Guide HP Compaq nw9440 Notebook PC HP Compaq nx9420 Notebook PC Document Part Number: 412725-003 May 2007 This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 2
Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Maintenance and Service Guide HP Compaq nw9440 Notebook PC HP Compaq nx9420 Notebook PC Third Edition: May 2007 First Edition: March 2006 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 3
3.1 Serial Number Location 3-1 3.2 Computer Major Components 3-2 3.3 Display Assembly Components 3-16 3.4 Plastics Kit 3-18 3.5 Cable Kit 3-19 3.6 Mass Storage Devices 3-20 3.7 Miscellaneous (Not Illustrated 3-21 3.8 Sequential Part Number Listing 3-24 Maintenance and Service Guide i - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 4
5.3 Preparing the Computer for Disassembly 5-4 5.4 Hard Drive 5-6 5.5 Computer Feet 5-10 5.6 Bluetooth Module 5-11 5.7 External Memory Module 5-12 5.8 Mini Card Module 5-14 5.9 RTC Battery 5-17 5.10 Optical Drive 5-18 5.11 Keyboard 5-20 5.12 Internal Memory Module 5-24 5.13 TouchPad 5-26 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 5
24 Speaker 5-66 5.25 System Board 5-68 5.26 USB/Audio Board 5-75 5.27 PC Card/Smart Card Assembly 5-78 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 iii - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 6
Contents iv Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 7
1 Product Description The HP Compaq nw9440 Notebook PC and HP Compaq nx9420 Notebook PC offer advanced modularity, Intel® Core Duo processors, and extensive multimedia support. HP Compaq nw9440 Notebook PC and HP Compaq nx9420 Notebook PC Maintenance and Service Guide 1-1 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 8
60-GB high-capacity hard drive, varying by computer model ■ 256-MB DDR2 synchronous DRAM (SDRAM) at 533 MHz and 667 MHz, expandable to 4.0 GB ■ Microsoft® Windows® XP Professional ■ Full-size Windows keyboard with numeric keypad ■ TouchPad and pointing stick pointing devices, including a dedicated - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 9
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 ■ External 120- and 90-watt AC adapters with 3-wire power cord, varying by computer model ■ 8-cell Li-Ion battery pack ■ Stereo speakers - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 10
battery). 3. Wait approximately 5 minutes. 4. Replace the RTC battery and reassemble the computer. 5. Connect AC power to the computer. Do not reinsert any battery packs at this time. 6. Turn on the computer. All passwords and all CMOS settings have been cleared. 1-4 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 11
power management features: ■ Standby ■ Hibernation ■ Setting customization by the user ■ Hotkeys for setting the level of performance ■ Battery calibration ■ Lid switch standby/resume ■ Power button ■ Advanced Configuration and Power Management (ACPM) compliance Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 12
area network (LAN) device and/or a Bluetooth® device, is turned on. ■ On: The computer is on. ■ Blinking: The computer is in standby. ■ Blinking rapidly: An AC adapter with a higher power rating should be connected. ■ Off: The computer is off or in hibernation. 1-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 13
off until the battery reaches a low-battery condition. Drive light Blinking: The hard drive or optical drive is being accessed. Display release latch Opens the computer. Stereo speakers (2) Produce stereo sound. Digital Media Slot Supports 7 optional digital memory card formats: SD (Secure - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 14
Product Description The external components on the right side of the computer are shown below and described in Table 1-2. Right-Side Components 1-8 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 15
headphones or powered stereo speakers. Also connects the audio function of an audio/video device such as power source. Optical drive Supports an optical disc. The type of optical drive varies by model. RJ-45 (network) jack Connects an optional network cable. Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 16
connector Connects an AC adapter or an optional power adapter. External monitor port Connects an optional VGA external monitor or projector. S-Video-out jack Connects an optional S-Video device, such as a television, VCR, camcorder, projector, or video capture card. USB ports (2) Connect - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 17
Function 1394 port Connects an optional 1394a device such as a scanner, digital camera, or digital camcorder. Smart card slot Supports optional smart cards. PC Card slot Supports optional Type I, Type II, or Type III 32-bit (CardBus) or 16-bit PC Cards. Maintenance and Service Guide 1-11 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 18
Product Description The external components on the rear panel of the computer are shown below and described in Table 1-4. Rear Panel Components 1-12 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 19
airflow to cool internal components. Ä To prevent overheating, do not obstruct vents. Do not allow a hard surface, such as a printer, or a soft surface, such as pillows, thick rugs, or clothing, to block airflow. RJ-11 (modem) jack Connects the modem cable. Maintenance and Service Guide 1-13 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 20
Product Description The standard keyboard components of the computer are shown below and described in Table 1-5. Standard Keyboard Components 1-14 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 21
the pointer. Arrow keys Moves the cursor around the screen. Keypad keys (16) In Windows, can be used like the keys on an external numeric keypad. num lock key Enables numeric lock, turns on the embedded numeric keypad, and turns on the num lock light. Maintenance and Service Guide 1-15 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 22
on. ■ Blinking: The computer is in standby. ■ Blinking rapidly: An AC adapter with a higher power rating should be connected. ■ Off: The computer is off or in restore from hibernation. If the system has stopped responding and Windows shutdown procedures cannot be used, press and hold for 5 seconds - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 23
device and/or a Bluetooth® device, is turned on. Info Center button Enables you to view a list of commonly used software solutions. Presentation mode button Turns on Presentation mode. QuickLaunch Calculator button Opens the Microsoft Windows speaker volume. Maintenance and Service Guide 1-17 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 24
Product Description The computer pointing device components shown below and described in Table 1-7. Pointing Device Components 1-18 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 25
Device Components Component Function Pointing stick (select models only) Moves the pointer and selects or activates items on the screen and selects or activates items on the screen. Can be set to perform other only) Allows a fingerprint logon to Windows instead of using a password. TouchPad - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 26
battery locking latch Secures the primary battery pack into the battery bay. Docking connector Connects the computer to an optional docking device. Accessory battery connector Connects an optional HP Ultra-Capacity Battery or HP Extended Life Battery. 1-20 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 27
Component Function Memory module compartment Contains one memory slot that supports replaceable memory modules. Mini Card compartment Holds an optional wireless LAN device. Ä To prevent an unresponsive system and the display of a warning message, install only a Mini Card device authorized for - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 28
, and Chapter 5, "Removal and Replacement Procedures," for disassembly steps. The system board provides the following device connections: ■ Audio ■ Display ■ Hard drive ■ Intel Core Duo processors ■ Keyboard and TouchPad ■ Memory modules ■ Mini Card module ■ PC Card Ä CAUTION: To properly ventilate - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 29
Only authorized technicians trained by HP should repair this equipment. All troubleshooting and repair procedures are guide may not be supported by your computer. ✎ Pointing devices are not supported in Computer Setup. You must use the keyboard to navigate and make selections. ✎ An external keyboard - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 30
Troubleshooting 1. Open Computer Setup by turning on or restarting the computer, and then pressing f10 while the "F10 = ROM Based Setup" message is displayed in the lower-left corner of the screen Ignore Changes and Exit. Then follow the instructions on the screen. ❏ To save your preferences and exit - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 31
Troubleshooting Computer Setup Defaults To return all settings in Computer Setup to the values that were set at the factory: 1. Open Computer Setup by turning on or restarting the computer, and then pressing f10 while the "F10 = ROM Based Setup" message is displayed screen instructions on the screen - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 32
■ View identification information for the computer and the battery packs in the system. ■ View specification information for the processor, cache and memory size, system ROM, video revision, and keyboard controller version. Replace the configuration settings in Computer Setup with factory default - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 33
hard drive and optional MultiBay hard drives. ■ Change a DriveLock user or master password. ✎ DriveLock settings are accessible only when you enter Computer Setup by turning on (not restarting) the computer. Enable/disable support for smart card and Java™ Card power-on authentication. ✎ Power - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 34
is destroyed permanently. Select Memory Check Hard Drive Self-Test options Table 2-3 Diagnostics Menu To Do This Run a comprehensive check on system memory. Run a comprehensive self-test on any hard drive in the system or on any optional MultiBay hard drive. 2-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 35
Enable/disable CD-ROM boot. ■ Enable/disable Floppy boot. ■ Enable/disable internal network adapter boot and set the boot mode (PXE or RPL). ■ Enable/disable MultiBoot, which sets a boot order that can include most boot devices in the system. ■ Set the boot order. Maintenance and Service Guide 2-7 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 36
When enabled, USB legacy support allows a USB keyboard, mouse, and hub to work in Computer Setup even when a Microsoft Windows operating system is not loaded. ■ The computer to start from bootable USB devices, including a hard drive, diskette drive diskette, or optical drive connected by a USB port - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 37
To Do This ■ Enable/disable SATA Native Support. ■ Enable/disable Dual Core CPU. ■ Enable/disable Secondary Battery Fast Charge. ■ Enable/disable embedded WWAN Device Radio. ■ Enable/disable embedded WLAN Device Radio. ■ Enable/disable embedded Bluetooth® Device ■ Radio. ■ Enable/disable LAN/WLAN - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 38
"Flowchart 2.5-No Power, Part 4" 2.6 "Flowchart 2.6-No Video, Part 1" 2.7 "Flowchart 2.7-No Video, Part 2" 2.8 "Flowchart 2.8-Nonfunctioning Docking Device (if applicable)" 2.9 "Flowchart 2.9-No Operating System (OS) Loading" 2.10 "Flowchart 2.10-No OS Loading, Hard Drive, Part 1" 2.11 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 39
? Y Check LED board, speaker connections. Y Go to "Flowchart 2.6-No Video, Part 1." Go to Y "Flowchart 2.9-No Operating System (OS) Loading." Y Go to "Flowchart 2.15-No Audio, Part 1." N All drives working? N Keyboard/ pointing device working? N Connecting to network or modem? End Go to - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 40
Troubleshooting Flowchart 2.2-No Power, Part 1 No power (power LED is off). Remove from docking device (if applicable). N Power up on battery power? Y Reset power.* N Power up on battery power? Y Go to "Flowchart 2.3-No Power, Part 2." N Power up on AC power? Y Reset power.* N Power up on - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 41
debris in battery socket and clean if necessary. Y Power on? Done N Check battery pack by recharging it, moving it to another computer, N Power on? Y Replace power supply (if applicable). N Done Power on? Y Go to "Flowchart 2.4-No Power, Part 3." Done Maintenance and Service Guide 2-13 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 42
. Y Power on? N N Power outlet active? Y Replace power cord. Y Power on? N Done Done Try different outlet. External Internal or external AC adapter? Replace external AC adapter. Internal N Go to "Flowchart Power on? 2.5-No Power, Part 4." Y Done Done 2-14 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 43
Y Replace the following items (if applicable). Check computer operation after each replacement: 1. Internal DC-DC converter* 2. Internal AC adapter 3. Processor board* 4. System board* *NOTE: Replace these items as a set to prevent shorting out among components. Done Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 44
Troubleshooting Flowchart 2.6-No Video, Part 1 No video. Docking Device Stand-alone or docking device? Go to "Flowchart 2.7-No Video, Part 2." *NOTE: To change from internal to external display, use the hotkey combination. Stand-alone Y Internal or external Adjust brightness. Video OK? - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 45
device, for bent pins on cable, and for monitor connection. Try another external monitor. Y Video OK? N Y Internal Done and external Done video OK? N Adjust external monitor display. Go to "Flowchart 2.8-Nonfunctioning Docking Device (if applicable)." Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 46
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. Y Docking device operating? N Replace docking - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 47
Troubleshooting Flowchart 2.9-No Operating System (OS) Loading No OS loading.* Reset power cord in docking device and power outlet. No OS loading from hard drive, go to "Flowchart 2.10-No OS Loading, Hard Drive, Part 1." No OS loading from diskette drive, go to "Flowchart 2.13-No OS Loading, - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 48
2.11-No OS Loading, Hard Drive, Part 2." Done N Boot from diskette? Y Change boot priority through the Setup Utility and reboot. N Boot from hard drive? Y Go to "Flowchart 2.13-No OS Loading, Diskette Drive." Go to "Flowchart 2.17-Nonfunctioning Device." 2-20 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 49
Troubleshooting Flowchart 2.11-No OS Loading, Hard Drive, Part 2 Continued from "Flowchart 2.10-No OS Loading, Hard Drive, Part 1." Reseat hard drive. N CD or diskette in 1. Replace hard drive. 2. Replace system Y drive? Y board. Hard drive accessible? Done Remove diskette and reboot. N - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 50
sectors be fixed? Y Clean virus. Y OS loading from hard drive? N Y Diagnostics on diskette? N Replace hard drive. Run diagnostics and follow recommendations. N Fix bad sectors. Boot from hard drive? Replace hard drive. Y Done Replace hard drive. Done 2-22 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 51
1. Replace diskette drive. 2. Replace system board. N Y Reset the computer. Refer to OS loading? Done Section 1.2, "Resetting the N Computer," for instructions. Change boot priority using the Setup Utility. Go to "Flowchart 2.17-Nonfunctioning Device." Maintenance and Service Guide 2-23 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 52
? Y Done Go to "Flowchart 2.17-Nonfunctioning Device." Y Reset the computer. Booting order correct? N Refer to Section 1.2, "Resetting the Computer," for instructions. Go to "Flowchart 2.17-Nonfunctioning Device." Correct boot order using the Setup Utility. 2-24 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 53
. N Y Computer in docking device (if applicable)? N Undock N Internal audio? Y Go to "Flowchart 2.16-No Audio, Part 2." Go to "Flowchart 2.16-No Audio, Part 2." Replace the docking device. Go to "Flowchart 2.17-Nonfunctioning Device." N Y Audio? Done Maintenance and Service Guide 2-25 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 54
Troubleshooting Flowchart 2.16-No Audio, Part 2 Continued from "Flowchart 2.15-No Audio, Part 1." N Audio driver in OS configured? Y Reload audio drivers. N Correct drivers for application? Y Load drivers and set configuration in OS. Connect to external speaker. N Replace audio Y board - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 55
? Y Y Any physical device detected? N Replace hard drive. Replace NIC. If integrated NIC, replace system board. Fix or replace broken item. Go to "Flowchart 2.9-No Operating System (OS) Loading." N Device boots properly? Y Done Replace diskette drive. Done Maintenance and Service Guide 2-27 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 56
operating properly. Connect computer to good external keyboard. N External device works? Y Replace system board. Reseat internal keyboard connector (if applicable). N OK? Y Replace internal keyboard or cable. Y Done OK? Done N Replace system board. 2-28 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 57
. Connect computer to good external pointing device. N External device works? Y Replace system board. Reseat internal pointing device connector (if applicable). N OK? Y Replace internal pointing device or cable. Y Done OK? Done N Replace system board. Maintenance and Service Guide 2-29 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 58
line. N Y NIC/modem configured Reload drivers and OK? Done in OS? reconfigure. Y N Disconnect all power from the computer and open. Reseat NIC/modem (if applicable). Replace the NIC/modem (if applicable). Y OK? Done N Replace system board. 2-30 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 59
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 60
Illustrated Parts Catalog 3.2 Computer Major Components Computer Major Components 3-2 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 61
Spare Parts: Computer Major Components Description Spare Part Number Display assemblies (include wireless antenna transceivers and cables) 17.0-inch -001 LED board (includes LED board cable) 409957-001 Keyboards with pointing stick (includes pointing stick cable) For use Service Guide 3-3 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 62
Illustrated Parts Catalog Computer Major Components 3-4 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 63
Table 3-1 Spare Parts: Computer Major Components (Continued) Item 4 5 6 7 Description Keyboards without pointing stick For use in: Brazil The Czech Republic Denmark France French Canada Germany -031 409911-001 409951-001 409946-001 409932-001 409949-001 Maintenance and Service Guide 3-5 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 64
Illustrated Parts Catalog Computer Major Components 3-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 65
PC Card slot space saver Memory/Mini Card module cover (includes 3 captive screws) Hard drive cover (includes 2 captive screws) Not illustrated: computer feet (7) USB/audio board (includes audio board cable and USB board cable) 409968-001 Video -001 409969-001 Maintenance and Service Guide 3-7 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 66
Illustrated Parts Catalog Computer Major Components 3-8 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 67
includes Bluetooth module cable) 409993-001 Speaker 409947-001 PC Card/smart card assembly 409943-001 System board 409959-001 Video board M56, for use with model nx9420 G71, for use with model nw9440 409979-001 417206-001 RTC battery 409953-001 Base enclosure 409942-001 Memory modules - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 68
Illustrated Parts Catalog Computer Major Components 3-10 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 69
Parts Catalog Table 3-1 Spare Parts: Computer Major Components (Continued) Item 23 Description Mini Card modules 802.11b/g HS WLAN module for use in North America 802.11b/g HS WLAN 407108-291 407576-001 Paraguay Saudi Arabia Taiwan The United States Vietnam Maintenance and Service Guide 3-11 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 70
Illustrated Parts Catalog Computer Major Components 3-12 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 71
Parts Catalog Table 3-1 Spare Parts: Computer Major Components (Continued) Item 23 Description Mini Card modules (Continued) 802.11a/b/g GL WLAN module for use in the countries listed below Uzbekistan 407576-003 Uruguay Venezuela 407576-291 407576-AD1 Maintenance and Service Guide 3-13 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 72
Illustrated Parts Catalog Computer Major Components 3-14 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 73
: Israel Jordan Kuwait Thailand United Arab Emirates Hard drives 7200 rpm 100 GB 80 GB 409983-001 409991-001 5400 rpm 100 GB 80 GB 60 GB Battery pack (8-cell, 4.8-AH) Spare Part Number 409250-004 Ukraine 409982-001 409981-001 409980-001 398682-001 Maintenance and Service Guide 3-15 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 74
Illustrated Parts Catalog 3.3 Display Assembly Components 3-16 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 75
illustrated: Display Bracket Kit (includes top, middle, and bottom brackets) Display Cable Kit Display Screw Kit Spare Part Number 409935-001 409937-001 409978-001 409976-001 409974-001 409989-001 409931-001 409933-001 409939-001 409936-001 409938-001 409940-001 Maintenance and Service Guide 3-17 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 76
Description Spare Part Number Plastics Kit Includes: 409944-001 Hard drive cover (includes 2 captive screws, captured by C clips) Memory/Mini Card module cover (includes 3 captive screws, captured by C clips) Computer feet (7) PC Card slot space saver 3-18 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 77
Illustrated Parts Catalog Table 3-4 Cable Kit Spare Part Number Information Item 1 2 3 4 5 6 Description Cable Kit Includes: Bluetooth module cable USB/audio board cable Modem cable Network cable TouchPad cable Microphone cable Spare Part Number 409990-001 Maintenance and Service Guide 3-19 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 78
Illustrated Parts Catalog 3.6 Mass Storage Devices Item 1 2 Table 3-5 Mass Storage Devices Spare Part Number Information Description Hard drives (include frame and connector) 7200 rpm 100 GB 80 GB 409983-001 409991-001 5400 rpm 100 GB 80 GB 60 GB Optical drives (include bezel) DVD±RW and CD - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 79
watt non-PFC AC adapter 120-watt PFC AC adapter 90-watt PFC AC adapter 90-watt non-PFC AC adapter External MultiBay II External MultiBay II power cable and stand HP Extended Life Battery HP Docking Station HP Docking Station Miscellaneous Plastics Kit Label Kit MultiBay 8X DVD-ROM Drive MultiBay 24X - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 80
Illustrated Parts Catalog Table 3-6 Miscellaneous (Not Illustrated) Spare Part Information (Continued) Description Power cords: For use in the United States For use in Australia For use in Europe 350055-291 350055-AA1 350055-AD1 350055-BB1 350055-BG1 350055-DB1 3-22 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 81
USB 1.1 diskette drive 359118-001 Screw Kit (includes the following screws; refer to Appendix A, "Screw Listing," for more information on specifications and usage) 409945 .0 screw ■ Torx8 T8M2.5×9.0 screw ■ Torx8 T8M2.5×7.0 screw ■ Torx8 T8M2.5×4.0 screw Maintenance and Service Guide 3-23 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 82
cord for use in Israel Power cord for use in Switzerland Power cord for use in French Canada External MultiBay II External MultiBay II power cable and stand HP Extended Life Battery MultiBay 8X DVD-ROM Drive MultiBay 24X DVD/CD-RW Combo Drive HP Docking Station 3-24 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 83
407108-291 407576-001 Description HP Docking Station Miscellaneous Plastics Kit 90-watt PFC AC adapter 120-watt PFC AC adapter 8-cell, 4.8-AH battery pack 802.11b/g HS WLAN Mini Card module for use in North Saudi Arabia Taiwan The United States Vietnam Maintenance and Service Guide 3-25 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 84
/g GL WLAN module for use in Korea 802.11b/g GL WLAN Mini Card module for use in the following countries: Israel Jordan Kuwait Thailand United Arab Emirates Ukraine Keyboard without pointing stick for use in the United States (includes pointing stick cable) 3-26 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 85
cable) Keyboard without pointing stick for use in Turkey (includes pointing stick cable) Keyboard without pointing stick for use in Greece (includes pointing stick cable) Keyboard without pointing stick for use in Latin America (includes pointing stick cable) Maintenance and Service Guide 3-27 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 86
cable) Keyboard without pointing stick for use in Slovenia (includes pointing stick cable) Keyboard without pointing stick for use in Israel (includes pointing stick stick cable) Keyboard without pointing stick for use in Iceland (includes pointing stick cable) 3-28 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 87
pointing stick cable) Keyboard with pointing stick for use in Portugal (includes pointing stick cable) Keyboard with pointing stick for use in Turkey (includes pointing stick cable) Keyboard with pointing stick for use in Greece (includes pointing stick cable) Maintenance and Service Guide 3-29 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 88
pointing stick cable) Keyboard with pointing stick for use in Sweden (includes pointing stick cable) Keyboard with pointing stick for use in Slovenia (includes pointing stick cable) Keyboard with pointing stick for use in Israel (includes pointing stick cable) 3-30 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 89
Display enclosure Display Screw Kit Modem module Base enclosure PC Card/smart card assembly Plastics Kit Screw Kit Fan assembly Speaker Switch cover Processor heat sink (includes thermal paste) Video board heat sink for use with M56 video board (includes thermal pads) Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 90
, 512-MB memory module 1-DIMM, PC2-4200, 1024-MB memory module 1-DIMM, PC2-4200, 2048-MB memory module 1-DIMM, PC2-5300, 256-MB memory module 1-DIMM, PC2-5300, 512-MB memory module 1-DIMM, PC2-5300, 1024-MB memory module 1-DIMM, PC2-5300, 2048-MB memory module 3-32 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 91
+WVA display panel with AntiGlare Video board, M56, for use with model nx9420 5400-rpm, 60-GB hard drive 5400-rpm, 80-GB hard drive 5400-rpm, 100-GB hard drive 7200-rpm, 100-GB hard drive 8X Max DVD/CD-RW Combo Drive (includes bezel and optical drive bracket) Maintenance and Service Guide 3-33 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 92
Cable Kit 7200 rpm, 80 GB hard drive 90-watt non-PFC AC adapter Bluetooth module (includes Bluetooth module cable) Video board heat sink for use with G71 video board (includes thermal pads) 120-watt non-PFC AC adapter Video board, G71, for use with model nw9440 3-34 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 93
removal and replacement procedures: ■ Magnetic screwdriver ■ Phillips P0 and P1 screwdrivers ■ Torx8 screwdriver ■ 5.0-mm socket for video board screw locks ■ Flat-bladed screwdriver ■ Tool kit-includes connector removal tool, loopback plugs, and case utility tool Maintenance and Service Guide 4-1 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 94
only at the points designated in the maintenance instructions. Cables and Connectors Ä CAUTION: When servicing the computer, ensure that cables are placed snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. 4-2 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 95
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. If you are unsure whether the computer is off or in hibernation, turn - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 96
power to alter device device exposed to electrostatic discharge might not be affected at all and can work perfectly throughout a normal cycle. Or the device might function normally for a while, then degrade in the internal layers, reducing its life expectancy. 4-4 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 97
Removal and Replacement Preliminaries 4.5 Packaging and Transporting Precautions Use the following grounding precautions and that proper materials are selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate electric charges. Maintenance and Service Guide 4-5 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 98
Removal and Replacement Preliminaries 4.6 Workstation Precautions Use the following grounding precautions at workstations: ■ Avoid contact with pins, leads, or circuitry. ■ Turn off power and input signals before inserting or removing connectors or test equipment. 4-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 99
Removal and Replacement Preliminaries 4.7 ) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, -dissipative tables or floor mats with hard ties to the ground. ■ Field service kits. ■ Static awareness labels. - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 100
Removal and Replacement Preliminaries Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities. Table 4-1 Typical Bags 1,500 V Carbon-loaded plastic Floor mats 7,500 V Metallized laminate Floor mats 5,000 V 4-8 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 101
information on screw and screw lock sizes, locations, and usage. 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 Maintenance and Service Guide 5-1 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 102
hard drive 4 to disassemble the hard drive Computer Feet 0 Bluetooth Module 0 External Memory Module 3 loosened to remove the memory/Mini PCI module compartment cover Mini Card Module 2 Å To prevent an unresponsive system and the display of a warning message, install only a Mini Card device - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 103
Heat Sink Processor Video Board Heat Sink Video Board Display Assembly Display bezel Display panel Ambient light sensor board Display inverter Display hinges Top Cover Speaker System Board USB/Audio Board PC Card/Smart Card Assembly # of Screws Removed 1 to remove the optical drive 2 to remove the - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 104
the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power cord. Battery Pack Spare Part Number Information 8-cell, 4.8-Ah battery pack 398682-001 4. Remove the battery pack by following these steps - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 105
1 to the right. (The battery pack disengages from the computer.) c. Slide the battery pack release latch 2 to the right. d. Slide the battery pack 3 straight back and remove it. Removing the Battery Pack Reverse the above procedure to install the battery pack. Maintenance and Service Guide 5-5 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 106
Hard Drive Spare Part Number Information 7200 rpm 100 GB 80 GB 409983-001 409991-001 5400 rpm 100 GB 80 GB 60 GB 409982-001 409981-001 409980-001 1. Prepare the computer for disassembly (refer to Section 5.3). 2. Position the computer with the front toward you. 5-6 Maintenance and Service - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 107
the hard drive cover to the computer. 4. Lift the right side of the hard drive cover 2 and swing it to the left. 5. Remove the hard drive cover. ✎ The hard drive cover is included in the Plastics Kit, spare part number 409944-001. Removing the Hard Drive Cover Maintenance and Service Guide 5-7 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 108
Phillips PM2.5×13.0 spring-loaded hard drive retention screw 1. 7. Grasp the mylar tab 2 on the hard drive and slide the hard drive to the left 3 to disconnect it from the system board. 8. Remove the hard drive 4 from the hard drive bay. Removing the Hard Drive 5-8 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 109
Remove the four Phillips PM3.0×3.0 hard drive frame screws 1 from each side of the hard drive. 10. Lift the frame 2 straight up to remove it from the hard drive. Removing the Hard Drive Frame Reverse the above procedure to reassemble and install the hard drive. Maintenance and Service Guide 5-9 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 110
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 409944-001. Replacing the Computer Feet 5-10 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 111
Bluetooth module 1 out of the clip in the hard drive compartment. 4. Remove the Bluetooth module 2 from the hard drive. 5. Disconnect the Bluetooth module cable 3 from the module. Removing the Bluetooth Module Reverse the above procedure to install a Bluetooth module. Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 112
the cover 2 up and swing it toward you. 5. Remove the memory/Mini Card module compartment cover. ✎ The memory/Mini Card module compartment cover is included in the Plastics Kit, spare part number 409944-001. Removing the Memory/Mini Card Module Compartment Cover 5-12 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 113
2 away from the socket at an angle. 8. Remove the memory module. ✎ Memory modules are designed with notches 3 to prevent incorrect installation into the memory module socket. Removing the Memory Module Reverse the above procedure to install a memory module. Maintenance and Service Guide 5-13 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 114
Removal and Replacement Procedures 5.8 Mini Card Module Mini Card Module Spare Part Number Information 802.11b/g HS WLAN module for use in North America 802.11b/g Uruguay Venezuela 407108-291 407576-001 Paraguay Saudi Arabia Taiwan The United States Vietnam 5-14 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 115
Removal and Replacement Procedures Mini Card Module Spare Part Number Information (Continued) 802.11a/b/g GL WLAN module for use in the MOW 2 countries Venezuela 407576-291 407576-AD1 409250-004 Ukraine 1. Prepare the computer for disassembly (Section 5.3). Maintenance and Service Guide 5-15 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 116
. 5. Remove the Mini Card module 3 by pulling the card away from the socket at an angle. ✎ Mini Card modules are designed with notches 4 to prevent incorrect installation. Removing a Mini Card Module Reverse the above procedure to install a Mini Card module. 5-16 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 117
5.9 RTC Battery Removal and Replacement Procedures RTC Battery Spare Part Number Information RTC battery 409953-001 1. Prepare the computer for disassembly (Section 5.3). 2. Remove the memory/Mini Card module compartment cover (Section 5.7). 3. Use a non-conductive, flat-bladed tool to pry the - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 118
409987-001 DVD±RW and CD-RW Double-Layer Combo Drive 409986-001 2X Max DVD/CD-RW Combo Drive 409985-001 8X Max DVD/CD-RW Combo Drive 409984-001 1. Prepare the computer for disassembly (Section 5.3). 2. Position the computer with right side toward you. 5-18 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 119
is necessary to replace the optical drive bracket, remove the two Phillips PM2.0×4.0 screws 1 that secure the bracket to the optical drive. 8. Remove the optical drive bracket 2. Removing the Optical Drive Reverse the above procedure to install an optical drive. Maintenance and Service Guide 5-19 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 120
Removal and Replacement Procedures 5.11 Keyboard Keyboard Spare Part Number Information Keyboards with pointing stick (includes Pointing Stick cable) for use in: Brazil The Czech Republic Denmark 409913-B71 409913-111 409913-281 409913-141 409913-031 409913-001 5-20 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 121
Removal and Replacement Procedures Keyboard Spare Part Number Information (Continued) Keyboards without pointing stick for use in: Brazil The Czech Republic Denmark France for disassembly (Section 5.3). 2. Position the computer with the front toward you. Maintenance and Service Guide 5-21 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 122
computer. Removing the Keyboard Screws 4. Turn the computer display-side up with the front toward you. 5. Open the computer as far as possible. 6. Lift the rear edge of the keyboard and swing it toward you until it rests on the palm rest. Releasing the Keyboard 5-22 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 123
Replacement Procedures 7. Release the zero insertion force (ZIF) connector 1 to which the keyboard cable is attached and disconnect the keyboard cable keyboard. Disconnecting the Keyboard and Pointing Stick Cables Reverse the above procedure to install the keyboard. Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 124
Removal and Replacement Procedures 5.12 Internal Memory Module Memory Module Spare Part Number Information 1-DIMM, PC2-5300 2048 MB 1024 MB 512 409961-001 409960-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.11). 5-24 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 125
2 away from the socket at an angle . 5. Remove the memory module. ✎ Memory modules are designed with notches 3 to prevent incorrect installation into the memory module socket. Removing the Memory Module Reverse the above procedure to install a memory module. Maintenance and Service Guide 5-25 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 126
pointing stick TouchPad with 2 TouchPad buttons, for use with keyboards without pointing stick 409955-001 1. Prepare the computer for disassembly (Section 5.3). 2. Remove the keyboard (Section 5.11). 3. Turn the computer upside down with the front toward you. 5-26 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 127
Removal and Replacement Procedures 4. Remove the Torx8 T8M2.5×9.0 screw that secures the TouchPad to the computer. Removing the TouchPad Screw Maintenance and Service Guide 5-27 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 128
Removal and Replacement Procedures 5. Turn the computer display-side up with the front toward you. 6. Open the computer. 7. Disconnect the TouchPad cable 1 from the system board. to disengage it from the top cover. 10. Remove the TouchPad. Removing the TouchPad 5-28 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 129
Procedures 11. If it is necessary to replace the TouchPad cable, turn the TouchPad upside down. 12. Disconnect the TouchPad cable 1 from the TouchPad board. 13. number 409990-001. Removing the TouchPad Cable Reverse the above procedure to install the TouchPad. Maintenance and Service Guide 5-29 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 130
Removal and Replacement Procedures 5.14 Modem Module Modem Module Spare Part Number Information Modem module 409941-001 1. Prepare the computer for disassembly (Section 5.3). 2. Remove the keyboard (Section 5.11). 3. Remove the TouchPad (Section 5.13). 5-30 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 131
Removal and Replacement Procedures 4. Remove the two Phillips PM2.0×4.0 screws 1 that secure the modem module to the system board. 5. Lift the right . 7. Remove the modem module. Removing the Modem Module Reverse the above procedure to install the modem module. Maintenance and Service Guide 5-31 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 132
Removal and Replacement Procedures 5.15 Switch Cover Switch Cover Spare Part Number Information Switch cover the rear panel toward you. 3. Remove the four Torx8 T8M2.5×4.0 screws in the battery bay that secure the switch cover to the computer. Removing the Switch Cover Screws 5-32 Maintenance - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 133
Removal and Replacement Procedures 4. Turn the computer display-side up with front toward you. 5. Open the computer as far as possible. 6. Insert a thin flat- the switch cover. Removing the Switch Cover Reverse the above procedure to install the switch cover. Maintenance and Service Guide 5-33 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 134
Removal and Replacement Procedures 5.16 LED Board LED Board Spare Part Number Information LED board (includes LED board cable) 409957-001 1. Prepare the Remove the LED board. Removing the LED Board Reverse the above procedure to install the LED board. 5-34 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 135
Removal and Replacement Procedures 5.17 Fan Assembly Fan Assembly Spare Part Number Information Fan Assembly 409932-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5. the above procedure to install the fan assembly. Maintenance and Service Guide 5-35 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 136
Replacement Procedures 5.18 Processor Heat Sink Processor Heat Sink Spare Part Number Information Processor heat sink (includes thermal paste) 409949-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard the Processor Heat Sink 5-36 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 137
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 and processor spare part kits. Thermal Paste Locations Reverse the above procedure to install the heat sink. Maintenance and Service Guide 5-37 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 138
Removal and Replacement Procedures 5.19 Processor Processor Spare Part Number Information ✎ All disassembly (Section 5.3), and then remove the following components: a. Keyboard (Section 5.11) b. Fan assembly (Section 5.17) c. Processor heat sink (Section 5.18) 5-38 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 139
Removal and Replacement Procedures 2. Use a flat-bladed screwdriver to turn the processor locking screw 1 one-half turn counterclockwise until you hear a you install the processor. Removing the Processor Reverse the above procedure to install the processor. Maintenance and Service Guide 5-39 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 140
(includes 409950-001 thermal pads) Video board heat sink for use with G71 video board (includes thermal pads) 413489-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.11). 3. Remove the fan assembly (Section 5.17). 5-40 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 141
and Replacement Procedures 4. Loosen the four Phillips PM2.5×7.0 screws 1 that secure the video board heat sink to the computer. 5. Remove the two Torx8 T8M2.5×4.0 screws 2 that secure the top cover hinge to the computer. Loosening the Video Board Heat Sink Screws Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 142
and remove it. ✎ Due to the adhesive quality of the thermal pad located between the video board heat sink and the video board, it may be necessary to move the heat sink from side to side to detach the video board heat sink. Removing the Video Board Heat Sink 5-42 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 143
video board heat sink 2 each time the video board heat sink is removed. Thermal paste is included with all video board heat sink and video board spare part kits. Thermal Paste Locations Reverse the above procedure to install the video board heat sink and fan assembly. Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 144
Removal and Replacement Procedures 5.21 Video Board Video Board Spare Part Number Information Video board, M56, for use with model nx9420 Video board, G71, for use with model nw9440 409979-001 417206-001 1. Prepare the computer for disassembly (Section 5.3). 2. Remove the fan assembly (Section - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 145
the top cover hinge. 6. Slide the video board forward 2 at an angle and remove it from the socket. ✎ The video board is designed with a notch 3 to prevent incorrect installation. Removing the Video Board Reverse the above procedure to install the video board. Maintenance and Service Guide 5-45 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 146
the memory/Mini PCI module compartment cover (Section 5.7) and disconnect the wireless antenna cables from the Mini Card module (Section 5.8). 3. Remove the following components: ❏ Switch cover (Section 5.15 ❏ LED board (Section 5.16) ❏ Keyboard (Section 5.11) 5-46 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 147
Torx8 T8M2.5×9.0 screws 1 from the computer bottom that secure the display assembly to the computer. 6. Remove the two Torx8 T8M2.5×9.0 screws 2 from the computer rear panel that secure the display assembly to the computer. Removing the Display Assembly Screws Maintenance and Service Guide 5-47 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 148
cable 1 from the system board. 10. Remove the wireless antenna cables 2 from the Mini Card compartment and the top cover clips. 11. Disconnect the microphone cable 3 from the system board. Disconnecting the Display Cables and Removing the Wireless Antenna Cables 5-48 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 149
can result in damage to the display assembly and other computer components. 12. Remove the two Torx8 T8M2.5×4.0 screws 1 that secure the display assembly to the computer. 13. Lift the display assembly 2 straight up and remove it. Removing the Display Assembly Maintenance and Service Guide 5-49 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 150
with BrightView 409978-001 409976-001 409974-001 409989-001 Wireless Antenna Kit 409931-001 Display Screw Kit 409940-001 Display enclosure 409939-001 Display Bracket Kit (includes top, middle, and bottom brackets) 409936-001 Display Cable Kit 409938-001 5-50 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 151
covers 2 Two flat rubber screw covers 3 Two long oblong rubber screw covers 4 Two short oblong rubber screw covers ✎ The display bezel screw covers are available in the Display Screw Kit, spare part number 409940-001. Removing the Display Bezel Screw Covers Maintenance and Service Guide 5-51 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 152
display bezel screws: 1 Six Torx8 T8M2.5×7.0 screws 2 Two Phillips PM2.0×6.0 screws 3 Two stabilizer clips ✎ The display bezel screws and the stabilizer clips are available in the Display Screw Kit, spare part number 409940-001. Removing the Display Bezel Screws 5-52 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 153
16. Flex the inside edges of the left and right sides 1 of the display bezel and the inside edges of the top and bottom sides 2 of the display bezel until the bezel disengages from the display assembly. 17. Remove the display bezel 3. Removing the Display Bezel Maintenance and Service Guide 5-53 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 154
the four mylar screw covers 1 and the four Torx8 T8M2.5×4.0 screws 2 that secure the display panel to the display enclosure. ✎ The mylar screw covers are available in the Display Screw Kit, spare part number 409940-001. Removing the Display Panel Screws, Part 1 5-54 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 155
display panel to the display enclosure 3 One Torx8 T8M2.5×4.0 screw that secures the ambient light sensor board to the display enclosure 4 One Torx8 T8M2.5×4.0 screw that secures the display inverter to the display enclosure Removing the Display Panel Screws, Part 2 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 156
17.0-inch, WSXGA+WVA with BrightView 409978-001 409976-001 409974-001 409988-001 Display Cable Kit 409938-001 20. Remove the display panel 1, ambient light sensor board 2, and display inverter 3 from the display enclosoure. Removing the Display Panel 5-56 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 157
and Replacement Procedures 21. Disconnect the following cables: 1 Ambient light sensor board cable 2 Display panel cable 3 Backlight cable 22. Remove the ambient light sensor board and display inverter. Removing the Display Inverter and Ambient Light Sensor Board Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 158
Spare Part Number Display Hinge Kit 409937-001 23. If it is necessary to replace a display hinges, remove the four Phillips PM2.0×4.0 screws 1 that secure each hinge to the display panel. 24. Remove the display hinges 2. Removing the Display Hingesw 5-58 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 159
Removal and Replacement Procedures 25. If it is necessary to replace the display latch actuator 1, remove the actuator from the display enclosure by using a small flat-bladed tool to press out on the tabs 2 on the actuator. Removing the Display Latch Actuator Maintenance and Service Guide 5-59 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 160
. 27. Lift the right side of the arm 2 and swing it up and to the left until it rests at an angle. 28. Disengage the display latch arm spring 3 from the tab to which it is attached. 29. Remove the display latch arm and spring. Removing the Display Latch Arm 5-60 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 161
shield that secure the wireless antenna cables to the display enclosure. 31. Detach the wireless antenna transceivers 2 from the display enclosure. 32. Remove the wireless antenna transceivers and cables 3. Removing the Wireless Antenna Transceivers and Cables Maintenance and Service Guide 5-61 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 162
the display enclosure. 35. Remove the microphone and cable 3. ✎ The microphone and cable are available in the Cable Kit, spare part number 409990-001. Removing the Microphone and Cable Reverse the above procedure to reassemble and install the display assembly. 5-62 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 163
Hard drive (Section 5.4) b. Memory/Mini PCI module compartment cover (Section 5.7) c. Optical drive (Section 5.10) d. Keyboard (Section 5.11) e. Switch cover (Section 5.15) f. Display assembly (Section 5.22) 2. Turn the computer upside down with the front toward you. Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 164
Removal and Replacement Procedures 3. Remove the fourteen Torx8 T8M2.5×9.0 screws that secure the top cover to the computer. Removing the Top Cover Screws, Torx8 T8M2.5×7.0 screws that secure the top cover to the computer. Removing the Top Cover Screws, Part 2 5-64 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 165
Removal and Replacement Procedures 6. Lift the rear edge of the top cover 1 to disengage it from the base enclosure. 7. Swing the top cover 2 base enclosure. 8. Remove the top cover 3. Removing the Top Cover Reverse the above procedure to install the top cover. Maintenance and Service Guide 5-65 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 166
following components: a. Hard drive (Section 5.4) b. Memory/Mini PCI module compartment cover (Section 5.7) c. Optical drive (Section 5.10) d. Keyboard (Section 5.11) e. Switch cover (Section 5.15) f. Display assembly (Section 5.22) g. Top cover (Section 5.23) 5-66 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 167
Removal and Replacement Procedures 2. Disconnect the speaker cable 1 from the system board. 3. Remove the speaker 2 from the base enclosure. Removing the Speaker Reverse the above procedure to install the speaker. Maintenance and Service Guide 5-67 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 168
board and installed on the replacement system board: ■ Memory modules (Section 5.7 and Section 5.12) ■ Mini Card card (Section 5.8) ■ RTC battery (Section 5.9) ■ Modem board (Section 5.14) ■ Processor (Section 5.19) ■ PC Card/smart card assembly (Section 5.27) 5-68 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 169
(Section 5.3), and then remove the following components: a. Hard drive (Section 5.4) b. Bluetooth module (Section 5.6) c. Optical drive (Section 5.10) d. Keyboard (Section 5.11) e. Switch cover (Section 5.15) f. LED board (Section 5.16) g. Display assembly (Section 5.22) h. Top cover (Section 5.23 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 170
: 1 Network cable 2 Modem cable 3 Bluetooth module cable 4 USB/audio board cable ✎ The network cable, modem cable, Bluetooth module cable, and USB/audio cable are available in the Cable Kit, spare part number 409990-001. Disconnecting the System Board Cables 5-70 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 171
the system board to the base enclosure. 4. Use the optical drive connector 2 to lift the right side of the system board until it rests at an angle. 5. Slide the system board 3 to the right at an angle until it clears the base enclosure. Removing the System Board Maintenance and Service Guide 5-71 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 172
Procedures 6. If it is necessary to replace the modem connector and cable, remove the connector 1 from the clip in the base enclosure and remove the cable 2 cable is available in the Cable Kit, spare part number 409990-001. Removing the Modem Connector and Cable 5-72 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 173
Procedures 7. If it is necessary to replace the network connector and cable, remove the connector 1 from the clip in the base enclosure and remove the cable is available in the Cable Kit, spare part number 409990-001. Removing the Network Connector and Cable Maintenance and Service Guide 5-73 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 174
base enclosure. ✎ The Bluetooth module cable is included with the Bluetooth module spare part kit and is also available in the Cable Kit, spare part number 409990-001. Removing the Bluetooth Module Cable Reverse the above procedures to install the system board. 5-74 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 175
(Section 5.3), and then remove the following components: a. Hard drive (Section 5.4) b. Bluetooth module (Section 5.6) c. Optical drive (Section 5.10) d. Keyboard (Section 5.11) e. Switch cover (Section 5.15) f. LED board (Section 5.16) g. Display assembly (Section 5.22) h. Top cover (Section 5.23 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 176
the USB/audio board to the base enclosure. 4. Remove the USB/audio board 4 from the base enclosure. Removing the USB/Audio Board 5-76 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 177
5. If it is necessary to replace the USB/audio board cable, disconnect the cable from the board. ✎ The USB/audio board cable is included with the number 409990-001. Removing the USB/Audio Board Cable Reverse the above procedure to install the USB/audio board. Maintenance and Service Guide 5-77 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 178
and Replacement Procedures 5.27 PC Card/Smart Card Assembly PC Card/Smart Card Assembly Spare Part Number Information PC Card/smart card assembly 409943-001 1. Prepare the computer for disassembly (Section 5.3), and then remove the following components: a. Hard drive (Section 5.4) b. Bluetooth - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 179
Replacement Procedures 2. Turn the system board upside down with the PC Card eject button facing away from you. 3. Remove the four Phillips PM2.0×4.0 screws that secure the PC Card/smart card assembly to the system board. Removing the PC Card/Smart Card Assembly Screws Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 180
the system board top-side up with the PC Card eject button facing away from you. 5. Remove the PC Card/smart card assembly from the system board. Removing the PC Card/Smart Card Assembly Reverse the above procedure to install the PC Card/smart card assembly. 5-80 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 181
1.3 to 1.5 in 15.5 in 10.8 in Weight HP Compaq nw9440 with 17.0-inch display, optical drive, and 8-cell battery pack HP Compaq nx9420 with 17.0-inch display, optical drive, and 8-cell battery pack 3.40 kg 3.36 kg 7.5 lbs 7.4 lbs Input Power Operating voltage Operating current 18.5 V dc - 19 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 182
Specifications Table 6-1 Computer (Continued) Relative humidity (noncondensing) Operating Nonoperating 10% to 90% 5% to 95% 10% to 90% 5% to 95 specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. 6-2 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 183
Backlight Character display Total power consumption Viewing angle 24.4 cm 38.1 cm 43.2 cm Up to 16.8 million 200:1 180 nits typical 9.6 in 15.0 in 17.0 in 0.172 × 0.172 mm 1920 × 1200 RGB vertical stripe CCFT 80 × 25 6.0 W +/-65° horizontal, +/-50° vertical typical Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 184
Specifications Table 6-3 17.0-inch, WSXGA+WVA Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle 24.4 cm 38.1 cm 43.2 cm Up to 16.8 million 200:1 180 nits - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 185
Specifications Table 6-4 17.0-inch, WXGA+WVA Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle 24.4 cm 38.1 cm 43.2 cm Up to 16.8 million 200:1 180 nits typical - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 186
to 55°C (41°F to 131°F) ✎ Certain restrictions and exclusions apply. Consult Customer Care for details. *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. †Actual drive specifications may differ slightly. 6-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 187
Specifications Table 6-6 Primary 8-cell, Li-Ion Battery Pack Dimensions Height Width Depth Weight Energy Voltage Amp-hour capacity Watt-hour capacity Temperature Operating Nonoperating 45°C 0°C to 60°C 0.79 in 3.70 in 5.28 in 0.75 lb 41°F to 113°F 32°F to 140°F Maintenance and Service Guide 6-7 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 188
Specifications Table 6-7 DVD±RW and CD-RW Combo Drive Applicable disc Center hole diameter Disc diameter Standard disc Mini disc Read: DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD- (0.59 in) Write: CD-R and CD-RW DVD-R and DVD-RW 12 cm (4.72 in) 8 cm (3.15 in) 6-8 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 189
Specifications Table 6-7 DVD±RW and CD-RW Combo Drive (Continued) Disc thickness 1.2 mm (0.047 in) Track pitch 0.74 µm Access time CD DVD Random Full stroke < 175 (1,352 KB/s at 1X DVD rate) 16.6 MB/s Startup time < 15 seconds Stop time < 6 seconds Maintenance and Service Guide 6-9 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 190
Specifications Table 6-8 DVD/CD-RW Combo Drive Applicable disc Center hole diameter Disc diameter Standard disc Mini disc Read: DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, ) CD-Bridge 1.5 cm (0.59 in) Write: CD-R and CD-RW 12 cm (4.72 in) 8 cm (3.15 in) 6-10 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 191
Specifications Table 6-8 DVD/CD-RW Combo Drive (Continued) Disc thickness 1.2 mm (0.047 in) Track pitch 0.74 µm Access time CD media DVD media Random Full stroke < (1,352 KB/s at 1X DVD rate) 16.6 MB/s Startup time < 15 seconds Stop time < 6 seconds Maintenance and Service Guide 6-11 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 192
System Function DMA0 Not applicable DMA1* Not applicable DMA2* Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5* Available for PC Card DMA6 Not assigned DMA7 Not assigned *PC Card controller can use DMA 1, 2, or 5. 6-12 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 193
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 Parallel port System CMOS/real-time clock Microsoft ACPI - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 194
Specifications Table 6-10 System Interrupts (Continued) IRQ11 Intel USB EHCI controller- IDE channel *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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 195
Specifications I/O Address (hex) 000 - 00F 010 - 01F 020 - 021 022 - 024 025 - 03F 02E - 02F 040 - Unused Keyboard controller Port B Unused Keyboard controller Unused NMI enable/RTC Unused DMA page registers Unused Port A Unused Interrupt controller no. 2 Maintenance and Service Guide 6-15 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 196
Specifications Table 6-11 System I/O Addresses (Continued) I/O Address (hex) 0A2 - 0BF 0C0 - 0DF 2EF System Function (shipping configuration) Unused DMA controller no. 2 Unused Coprocessor busy clear/reset Unused Unused Secondary fixed disk controller Unused Primary fixed disk controller Unused - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 197
FM synthesizer-OPL3 Unused VGA Reserved (parallel port/no EPP support) VGA PC Card controller in CPU Unused Internal modem "A" diskette controller Serial port (COM1/default) PCI configuration index register (PCIDIVO-1) PCI configuration data register (PCIDIVO-1) Maintenance and Service Guide 6-17 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 198
00FFFFFF 01000000-047FFFFF 04800000-07FFFFFF 08000000-080FFFFF 08200000-FFFEFFFF FFFF0000-FFFFFFFF System Function Base memory Video memory Video BIOS Unused System BIOS Extended memory Super extended memory Unused Video memory (direct access) Unused System BIOS 6-18 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 199
number 409940-001. Table A-1 Phillips PM3.0×3.0 Screw Head mm Color Qty. Length Thread Width Black 4 3.0 mm 3.0 mm 5.0 mm Where used: 4 screws that secure the hard drive to the hard drive frame (documented in Section 5.4) Phillips PM3.0×3.0 Screw Locations Maintenance and Service Guide A-1 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 200
Screw Head mm Color Qty. Length Thread Width Black 2 17.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the hard drive cover to the hard drive (screws are captured on the cover by C clips; documented in Section 5.4) Phillips PM2.5×17.0 Screw Locations A-2 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 201
-Loaded Screw Head mm Color Qty. Length Thread Width Silver 1 13.0 mm 2.5 mm 6.0 mm Where used: One screw that secures the hard drive to the computer (screw is captured on the cover by C clip; documented in Section 5.4) Phillips PM2.5×13.0 Screw Location Maintenance and Service Guide A-3 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 202
Thread Width Black 3 4.0 mm 2.5 mm 5.0 mm Where used: 3 screws that secure the memory/Mini Card module compartment cover to the computer (screws are captured on the hard drive frame by C clips; documented in Section 5.7) Phillips PM2.5×4.0 Screw Locations A-4 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 203
Screw Listing Table A-5 Phillips PM2.0×4.0 Screw Head mm Color Qty. Length Thread Width Silver 18 4.0 mm 2.0 mm 4.5 mm Where used: 2 screws that secure the Mini Card WLAN module to the computer (documented in Section 5.8) Phillips PM2.0×4.0 Screw Locations Maintenance and Service Guide A-5 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 204
A-5 Phillips PM2.0×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Silver 18 4.0 mm 2.0 mm 4.5 mm Where used: 2 screws that secure the optical drive bracket to the optical drive (documented in Section 5.10) Phillips PM2.0×4.0 Screw Locations A-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 205
18 4.0 mm 2.0 mm 4.5 mm Where used: 2 screws that secure the modem module to the computer (documented in Section 5.14) Phillips PM2.0×4.0 Screw Locations Maintenance and Service Guide A-7 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 206
Table A-5 Phillips PM2.0×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Silver 18 4.0 mm 2.0 mm 4.5 mm Where used: 8 screws that secure the display hinge to the display panel (documented in Section 5.22) Phillips PM2.0×4.0 Screw Locations A-8 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 207
Phillips PM2.0×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Silver 18 4.0 mm 2.0 mm 4.5 mm Where used: 4 screws that secure the PC Card/smart card assembly to the system board (documented in Section 5.27) Phillips PM2.0×4.0 Screw Locations Maintenance and Service Guide A-9 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 208
Color Qty. Length Thread Width Black 26 9.0 mm 2.5 mm 5.0 mm Where used: 1 One screw that secures the optical drive to the computer (documented in Section 5.10) 2 Four screws that secure the keyboard to the computer (documented in Section 5.11) 3 One screw that secures the TouchPad to the computer - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 209
Listing Table A-6 Torx8 T8M2.5×9.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 26 9.0 mm 2.5 mm 5.0 mm Where used: 6 screws that secure the display assembly to the computer (documented in Section 5.22) Torx8 T8M2.5×9.0 Screw Locations Maintenance and Service Guide A-11 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 210
Screw Listing Table A-6 Torx8 T8M2.5×9.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 26 9.0 mm 2.5 mm 5.0 mm Where used: 14 screws that secure the top cover to the computer (documented in Section 5.23) Torx8 T8M2.5×9.0 Screw Locations A-12 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 211
Screw Listing Table A-7 Torx8 T8M2.5×4.0 Screw Head mm Color Qty. Length Thread Width Black 20 4.0 mm 2.5 mm 5.0 mm Where used: 4 screws that secure the switch cover to the computer (documented in Section 5.15) Torx8 T8M2.5×4.0 Screw Locations Maintenance and Service Guide A-13 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 212
Screw Listing Table A-7 Torx8 T8M2.5×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 20 4.0 mm 2.5 mm 5.0 mm Where used: 4 screws that secure the LED board to the computer (documented in Section 5.16) Torx8 T8M2.5×4.0 Screw Locations A-14 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 213
Table A-7 Torx8 T8M2.5×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 20 4.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the video board heat sink to the computer (documented in Section 5.20) Torx8 T8M2.5×4.0 Screw Locations Maintenance and Service Guide A-15 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 214
Listing Table A-7 Torx8 T8M2.5×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 20 4.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the display assembly to the computer (documented in Section 5.22) Torx8 T8M2.5×4.0 Screw Locations A-16 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 215
Table A-7 Torx8 T8M2.5×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 20 4.0 mm 2.5 mm 5.0 mm Where used: 4 screws that secure the display panel to the display enclosure (documented in Section 5.22) Torx8 T8M2.5×4.0 Screw Locations Maintenance and Service Guide A-17 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 216
in Section 5.22) 2 One screw that secures the ambient light sensor board to the display enclosure (documented in Section 5.22) 3 One screw that secures the inverter board to the display enclosure (documented in Section 5.22) Torx8 T8M2.5×4.0 Screw Locations A-18 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 217
Screw Listing Table A-8 Torx8 T8M2.5×19.0 Screw Head mm Color Qty. Length Thread Width Black 1 19.0 mm 2.5 mm 5.0 mm Where used: One screw that secures the LED board to the computer (documented in Section 5.16) Torx8 T8M2.5×19.0 Screw Location Maintenance and Service Guide A-19 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 218
Screw Listing Table A-9 Torx8 T8M2.5×7.0 Screw Head mm Color Qty. Length Thread Width Black 11 7.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the fan assembly to the computer (documented in Section 5.17) Torx8 T8M2.5×7.0 Screw Locations A-20 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 219
Table A-9 Torx8 T8M2.5×7.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 11 7.0 mm 2.5 mm 5.0 mm Where used: 6 screws that secure the display bezel to the display assembly (documented in Section 5.22) Torx8 T8M2.5×7.0 Screw Locations Maintenance and Service Guide A-21 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 220
Screw Listing Table A-9 Torx8 T8M2.5×7.0 Screw (Continued) mm Color Qty. Length Thread Black 11 7.0 mm 2.5 mm Where used: 2 screws that secure the top cover to the computer (documented in Section 5.23) Head Width 5.0 mm Torx8 T8M2.5×7.0 Screw Locations A-22 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 221
2.5 mm 5.0 mm Where used: One screw that secures the system board to the base enclosure (documented in Section 5.25) Torx8 T8M2.5×7.0 Screw Location Maintenance and Service Guide A-23 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 222
heat sink to the computer (screws are secured to the heat sink by C clips; documented in Section 5.18) Phillips PM2.5×7.0 Screw Locations A-24 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 223
Phillips PM2.5×7.0 Screw (Continued) Head mm Color Qty. Length Thread Width Silver 10 7.0 mm 2.5 mm 5.0 mm Where used: 4 screws that secure the video board heat sink to the computer (screws are secured to the heat sink by C clips; documented in Section 5.20) Phillips PM2.5×7.0 Screw Locations - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 224
Table A-10 Phillips PM2.5×7.0 Screw (Continued) Head mm Color Qty. Length Thread Width Silver 10 7.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the display panel to the display enclosure (documented in Section 5.22) Phillips PM2.5×7.0 Screw Locations A-26 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 225
Table A-11 Hex Socket HM5.0×9.0 Screw Locks Head mm Color Qty. Length Thread Width Silver 2 9.0 mm 5.0 mm 5.0 mm Where used: 2 screw locks that secure the video board to the computer (documented in Section 5.21) HM5.0×9.0 Screw Lock Locations Maintenance and Service Guide A-27 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 226
Listing Table A-12 Phillips PM2.0×6.0 Screws Head mm Color Qty. Length Thread Width Silver 2 6.0 mm 2.0 mm 4.5 mm Where used: 2 screws that secure the display bezel to the display enclosure (documented in Section 5.22) Phillips PM2.0×6.0 Screw Locations A-28 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 227
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. ✎ The computer must be connected to external power before you perform - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 228
Next. The Backup Wizard opens. 5. Click Next. 6. Click Backup selected files from most common locations (Recommended). - or - Click Advanced Backup (Experienced users) to access advanced filtering techniques. 7. Click Next. 8. Follow the on-screen instructions. B-2 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 229
check box, and type your password in the Password and Confirm boxes. ✎ This step is optional. If you do not want to password-protect your data access, clear the Protect data access with password check box. 8. Click Next. 9. Follow the on-screen instructions. Maintenance and Service Guide B-3 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 230
points. This allows you to save a snapshot of your hard drive at a specific point in time. You can then recover back to that point make a copy of changes made after that time. HP recommends that you create recovery points ■ Before you add on-screen instructions. B-4 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 231
docking station (select computer models only), by clicking one of the available options. Click Next to further define the settings. A summary of your system recovery point settings is displayed. 4. Follow the on-screen instructions. Recovery HP Backup and Recovery Manager analyzes the hard drive - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 232
and Recovery HP Backup hard drive by deleting the recovery partition. However, doing this is not recommended. If you delete this partition, you will lose any information that is on the partition. ✎ Only one set of recovery discs can be created for this computer. B-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 233
a set of recovery discs: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 2. Click Next. 3. Click Create factory software recovery disc into the optical drive and restart the computer. 3. Follow the on-screen instructions. Maintenance and Service Guide B-7 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 234
initiate a recovery from the hard drive recovery partition: 1. Back up all personal files. 2. Restart the computer, and then press f11 before the Windows operating system loads. 3. Click a recovery option, and then click Next. 4. Follow the on-screen instructions. B-8 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 235
display (LCD) panel and the backlight. Careful handling should be exercised when removing these components. ✎ Materials Disposal This HP product contains mercury in the backlight in the display assembly Electronic Industries Alliance (EIA) at http://www.eiae.org. Maintenance and Service Guide C-1 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 236
from one display assembly to another. The procedures provided in this appendix are general disassembly instructions. Specific details, such as screw sizes, quantities, and locations, and component shapes and sizes, can vary from one computer model to another. C-2 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 237
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 238
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 239
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 240
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 241
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 Screws Maintenance and Service Guide C-7 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 242
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 243
Display Component Recycling 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 C-9 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 244
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 245
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 246
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 247
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. Releasing the LCD Panel Maintenance and Service Guide C-13 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 248
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 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 249
D Connector Pin Assignments Table D-1 Audio-Out (Headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel Pin Signal 3 Ground Maintenance and Service Guide D-1 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 250
Connector Pin Assignments Table D-2 Audio-In (Microphone) Pin Signal 1 Audio signal in 2 Audio signal in Pin Signal 3 Ground Table D-3 Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - D-2 Pin Signal 3 Data + 4 Ground Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 251
Connector Pin Assignments Table D-4 S-Video-Out Pin Signal 1 S-VHS color (C) signal 2 Composite video signal 3 S-VHS intensity (Y) signal 4 S-VHS color ground Pin Signal 5 TV-CD 6 S-VHS intensity ground 7 Composite video ground Maintenance and Service Guide D-3 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 252
analog Pin Signal 9 +5 VDC 10 Ground 11 Monitor detect 12 DDC 2B data 13 Horizontal sync 14 Vertical sync 15 DDC 2B clock D-4 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 253
Connector Pin Assignments Table D-6 RJ-11 (Modem) Pin Signal 1 Unused 2 Tip 3 Ring Pin Signal 4 Unused 5 Unused 6 Unused Maintenance and Service Guide D-5 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 254
Connector Pin Assignments Table D-7 RJ-45 (Network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused Pin Signal 5 Unused 6 Receive - 7 Unused 8 Unused D-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 255
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. Power cord sets for use in other countries must meet the requirements of the country where the computer is used. Maintenance and Service Guide E-1 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 256
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. ■ The power V AC, as required by each country's power system. - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 257
Set Requirements Country-Specific Requirements 3-Conductor Power Cord Set Requirements Type VCT or VCTF, 3-conductor, 1.00 mm² conductor size. The wall plug must be a two-pole grounding type with a Japanese Industrial Standard C8303 (7 A, 125 V) configuration. Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 258
must be Type HO5VV-F, 3-conductor, 1.0 mm² conductor size. Power cord set fittings ( must be Type SPT-3 or equivalent, No. 18 AWG, 3-conductor. The wall plug must be a two-pole grounding type with a flexible cord must be Type VCTF, 3-conductor, 0.75 mm² conductor size. Power cord set fittings - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 259
port 1-11 A AC adapter, spare part numbers 3-21, 3-25, 3-34 accessory battery connector 1-20 arrow keys 1-15 audio troubleshooting 2-25 audio-in jack location 1-9 pin assignments D-2 audio-out jack location 1-9 pin assignments D-1 B base enclosure, spare part number 3-9, 3-31 battery bay 1-13, 1-20 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 260
RJ-11 D-5 RJ-45 D-6 S-Video-out D-3 Universal Serial Bus (USB) D-2 connectors, service considerations 4-2 D design overview 1-22 Digital Media Slot 1-7 disassembly sequence chart 5-2 diskette drive OS loading problems 2-23 precautions 4-3 spare part number 3-24 display assembly removal 5-46 spare - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 261
2-25, 2-26 no network/modem connection 2-30 no OS loading 2-19 no OS loading from diskette drive 2-23 no OS loading from hard drive 2-20, 2-21, 2-22 no OS loading from optical drive 2-24 no power 2-12, 2-14, 2-15 no video 2-16, 2-17 nonfunctioning device 2-27 Maintenance and Service Guide Index-3 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 262
6-6 hard drive bay 1-21 hard drive cover illustrated 3-18 removal 5-7 headphone jack location 1-9 pin assignments D-1 HP Docking Station, spare part number 3-21, 3-24 HP Extended Life Battery, spare part number 3-21, 3-24 I I/O address specifications 6-15 interrupt specifications 6-13 K keyboard - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 263
4-3 removal 5-18 spare part numbers 3-9, 3-20, 3-21, 5-18 specifications 6-8, 6-10 optical drive bracket, removal 5-19 P packing precautions 4-5 password clearing 1-4 PC Card slot space saver 3-18 PC Card slots 1-11 PC Card/smart card assembly removal 5-78 Maintenance and Service Guide Index-5 - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 264
4-2 smart card slot 1-11 speaker location 1-7 removal 5-66 spare part number 3-9, 3-31, 5-66 specifications battery pack 6-7 computer 6-1 DVD/CD-RW Combo Drive 6-10 DVD±RW and CD-RW Combo Drive 6-8, 6-10 hard drive 6-6 I/O addresses 6-15 interrupts 6-13 Index-6 Maintenance and Service Guide - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 265
19 transporting precautions 4-5 troubleshooting audio 2-25 docking device 2-18 flowcharts 2-10 keyboard 2-28 modem 2-30 network 2-30 nonfunctioning device 2-18, 2-27 OS loading 2-19 overview 2-1 pointing device 2-29 power 2-12 video 2-16 U Universal Serial Bus (USB) diskette drive, spare part number - Compaq nw9440 | HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Servic - Page 266
5-44 spare part number 3-9, 5-44 spare part numbers 3-33, 3-34 video board heat sink removal 5-40 spare part numbers 3-7, 3-31, 3-34, 5-40 video troubleshooting 2-16 volume buttons 1-17 W Windows applications key 1-15 Windows logo key 1-15 wireless antenna disconnecting 5-16 illustrated 3-16 removal
Maintenance and Service
Guide
HP Compaq nw9440 Notebook PC
HP Compaq nx9420 Notebook PC
Document Part Number: 412725-003
May 2007
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; troubleshooting computer problems; and performing
computer disassembly procedures.