Compaq nx7400 HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service
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- Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 1
Guide HP Compaq nx7300 and nx7400 Notebook PC Document Part Number: 410775-002 March 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 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 2
Company, L.P. Microsoft, Windows, and Windows Vista are either trademarks HP shall not be liable for technical or editorial errors or omissions contained herein. Maintenance and Service Guide HP Compaq nx7300 and nx7400 Notebook PC Second Edition: March 2007 First Edition: May 2006 Document Part - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 3
the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 4
2.1 Starting Computer Setup 2-1 Navigating and selecting in Computer Setup 2-2 Restoring Factory Settings in Computer Setup. . . . . 2-3 File Menu 2-4 Security Menu 2-5 Diagnostics Menu 2-7 System Configuration Menu 2-7 2.2 Troubleshooting Flowcharts 2-10 Maintenance and Service Guide iii - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 5
(Not Illustrated 3-18 3.6 Sequential Part Number Listing 3-21 4 Removal and Replacement Preliminaries 4.1 Tools Required 4-1 4.2 Service Considerations 4-2 Plastic Parts 4-2 Cables and Connectors 4-2 4.3 Preventing Damage to Removable Drives 4-3 4.4 Preventing Electrostatic Damage - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 6
Contents 5 Removal and Replacement Procedures 5.1 Serial Number 5-2 5.2 Disassembly Sequence Chart 5-3 5.3 Preparing the Computer for Disassembly 5-5 5.4 Hard Drive 5-7 5.5 Computer Feet 5-11 5.6 Optical Drive 5-12 5.7 External Memory Module 5-14 5.8 Bluetooth Module 5-17 5.9 Keyboard 5-19 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 7
Contents 6 Specifications A Screw Listing B Backup and Recovery in Windows Vista C Backup and Recovery in Windows XP D Display Component Recycling E Connector Pin Assignments F Power Cord Set Requirements Index Maintenance and Service Guide vi - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 8
1 Product Description The HP Compaq nx7300 and nx7400 Notebook PC offers advanced modularity, Intel® Core™ Duo, Core Solo, Celeron®, and Celeron M processors, and extensive multimedia support. HP Compaq dx7300 and nx7400 Notebook PC Maintenance and Service Guide 1-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 9
Celeron M 430 (1.73-GHz) processor ❏ Intel Celeron M 420 (1.60-GHz) processor ❏ Intel Celeron M 410 (1.46-GHz) processor ■ The following displays are available, varying by computer model: ❏ 15.4-inch, WSXGA+, TFT (1680 × 1050) with over 16.8 million colors with BrightView ❏ 15.4-inch, WSXGA+, TFT - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 10
AC adapter with 3-wire power cord ■ 6-cell Li-Ion battery ■ Stereo speakers ■ Volume up, volume mute, and volume down buttons ■ Support for the following optical drives: ❏ DVD±RW and CD-RW Double-Layer Combo Drive ❏ DVD/CD-RW Combo Drive ❏ DVD-ROM drive ❏ CD-ROM drive Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 11
Product Description ■ Connectors: ❏ Accessory battery ❏ Audio-in (microphone) ❏ Audio-out (headphone) ❏ Docking connector ❏ External monitor ❏ IEEE 1394 ❏ RJ-11 (modem) ❏ RJ-45 (network) ❏ S-Video-out ❏ Smart Adapter power ❏ Three Universal Serial Bus (USB) v. 2.0 1-4 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 12
for Disassembly," for more information). Remove the real-time clock (RTC) battery (refer to Section 5.16, "RTC Battery," for more information on removing and replacing the RTC battery). 2. Wait approximately 5 minutes. 3. Replace the RTC battery and reassemble the computer. 4. Connect AC power to - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 13
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 1-6 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 14
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 HP Smart AC Adapter with a higher power rating should be connected. ■ Off: The computer is off or in hibernation. Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 15
charged. If the computer is not connected to an external power source, the light is turned off until the battery reaches a low-battery condition. Drive light Blinking green: The hard drive or optical drive is being accessed. Display release latch Opens the computer. 1-8 Maintenance and Service - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 16
drive varies by computer model. USB ports (2) Connect USB 1.1- and 2.0-compliant devices to the computer using a standard USB cable, or connect an optional External MultiBay II to the computer. The MultiBay II must also be connected to an external power source. Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 17
Item 1 2 3 Table 1-3 Rear Panel Components Component Function Battery bay Holds a battery. Smart adapter power connector Connects an AC adapter or an optional power adapter. External monitor port Connects an optional VGA external monitor or projector. 1-10 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 18
cable slot Attaches an optional security cable to the computer. Ä Security solutions are designed to act as deterrents. These deterrents may not prevent a product from being mishandled or stolen. RJ-45 (network) jack Connects an optional network cable. Maintenance and Service Guide 1-11 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 19
computer using a standard USB cable, or connects an optional External MultiBay II to the computer. The MultiBay II must also be connected to an external power source. PC Card slot Supports optional Type I or Type II 32-bit (CardBus) or 16-bit PC Cards. 1-12 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 20
Product Description The standard keyboard components of the computer are shown below and described in Table 1-5. Standard Keyboard Components Maintenance and Service Guide 1-13 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 21
Table 1-5 Standard Keyboard Components Component Function screen. Keypad keys 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. 1-14 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 22
Product Description The computer top components are shown below and described in Table 1-6. Top Components Maintenance and Service Guide 1-15 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 23
sound. Power button When the computer is: ■ Off, press to turn on the computer. ■ On, briefly press to initiate hibernation. ■ In standby, briefly press to resume from standby. ■ In hibernation, briefly press to restore from hibernation. If the system has stopped responding and Windows shutdown - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 24
Product Description The computer TouchPad components shown below and described in Table 1-7. TouchPad Components Maintenance and Service Guide 1-17 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 25
Product Description Item 1 2 3 Table 1-7 TouchPad Components Component Function TouchPad Moves the pointer and selects or activates items on the screen. Can be set to perform other mouse functions, such as scrolling, selecting, and double-clicking. TouchPad buttons Function like the left, - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 26
an optional HP Ultra-Capacity Battery or HP Extended Life Battery. Memory module compartment Contains one memory slot that supports replaceable memory modules. Hard drive bay Holds the primary hard drive. Exhaust vents Provides airflow to cool internal components. Docking connector Connects - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 27
identify replacement parts, 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, Core Solo, Celeron, and Celeron M processors ■ Keyboard and TouchPad ■ Memory modules - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 28
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 connected by USB can be used with Computer Setup only if USB legacy support is enabled. Maintenance and Service Guide 2-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 29
of the screen. Because Computer Setup is not Windows-based, it does not support the TouchPad. screen, press esc. ❏ To view navigation information, press f1. ❏ To change the language, press f2. 2. Select the File, Security, Diagnostics, or System Configuration menu. 2-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 30
use the arrow keys to select File > Save Changes and Exit. Then follow the instructions on the screen. Your preferences go into effect when the computer restarts. ✎ Your password settings and security settings are not changed when you restore the factory settings. Maintenance and Service Guide 2-3 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 31
■ View identification information for the computer and the batteries in the system. ■ View specification information for the processor, cache and memory size, system ROM, video revision, and keyboard controller version. Restore defaults Replace the configuration settings in Computer Setup with the - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 32
on any computer hard drive and on optional MultiBay hard drives. ■ Change a DriveLock user password 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 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 33
erase cycle once. ■ Optimum: Runs the Disk Sanitizer erase cycle 3 times. ■ Custom: Allows you to select the desired number of Disk Sanitizer erase cycles from a list. Ä If you run Disk Sanitizer, the data on the primary hard drive is destroyed permanently. 2-6 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 34
Menu Troubleshooting Select Hard Drive Self-Test options Memory Check Startup Check (select models only) Table 2-3 Diagnostics Menu To do this Run a comprehensive self-test on any hard drive in the system or on any optional MultiBay hard drive. Run a comprehensive check on system memory. Verify - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 35
support allows the following: ❐ Use of a USB keyboard, mouse, and hub in Computer Setup even when a Windows operating system is not running. ❐ Startup from bootable USB devices, including a hard drive, diskette drive, or optical drive connected by a USB port to the computer or to an optional docking - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 36
devices on the advanced port replicator. ■ Enable/disable the 1394 port. ■ Enable/disable the cardbus slot. ■ Enable/disable the ExpressCard slot. ■ Enable/disable the infrared port. ■ Enable/disable the optical disk drive. ■ Enable/disable the network controller. Maintenance and Service Guide 2-9 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 37
15-No Audio, Part 1" 2.16 "Flowchart 2.16-No Audio, Part 2" 2.17 "Flowchart 2.17-Nonfunctioning Device" 2.18 "Flowchart 2.18-Nonfunctioning Keyboard" 2.19 "Flowchart 2.19-Nonfunctioning Pointing Device" 2.20 "Flowchart 2.20-No Network/Modem Connection" 2-10 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 38
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 "Flowchart 2.17 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 39
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 40
in battery socket and clean if necessary. Y Power on? Done N Check battery by recharging it, moving it to another computer, or replacing it. 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 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 41
. 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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 42
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 43
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 44
Troubleshooting Flowchart 2.7-No Video, Part 2 Continued from "Flowchart 2.6-No Video, Part 1." Remove computer from docking device, if connected. Adjust display brightness. Check brightness of external monitor. N Y Go to "A" in Video OK? "Flowchart Video OK? Done 2.6-No Video, Part 1." - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 45
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 46
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 47
Troubleshooting Flowchart 2.10-No OS Loading, Hard Drive, Part 1 OS not loading from hard drive. Y Nonsystem disk message? N Reseat external hard drive. Y OS loading? N N Boot from CD? Y Check the Setup utility for correct booting order. N Boot from hard drive? Y Done Go to "Flowchart 2.11-No OS - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 48
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 49
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 50
disk error? 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 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 51
Troubleshooting Flowchart 2.14-No OS Loading, Optical Drive No OS loading from CD-ROM or DVD-ROM drive. N Disc in drive? Y Y N Bootable disc in drive from CD or DVD? Done N Y Reseat drive. Boots from CD or DVD? N N 1.2, "Resetting the Computer," for instructions. Go to "Flowchart 2.17- - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 52
. 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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 53
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 54
? 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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 55
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 56
. 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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 57
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 58
parts breakdown and a reference for spare part numbers. 3.1 Serial Number Location When ordering parts or requesting information, provide the computer serial number and computer model number located on the bottom of the computer. Serial Number Location Maintenance and Service Guide 3-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 59
Illustrated Parts Catalog 3.2 Computer Major Components Computer Major Components 3-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 60
Part Number Display assemblies (include wireless antenna transceivers and cables) 15.4-inch, WSXGA+ with BrightView 15.4-inch, WSXGA+ 15.4-inch, WXGA+ 417524-001 417523-001 417522-001 Switch cover (includes LED board and LED bd cable) 417520-001 Keyboards (include keyboard and Service Guide 3-3 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 61
Illustrated Parts Catalog Computer Major Components 3-4 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 62
Intel Celeron M 450 (1.83-GHz) processor Plastics Kit PC Card slot space saver Bluetooth module cover Memory module cover (includes 3 captive screws) Hard drive cover (includes 2 captive screws) Not illustrated: computer feet (7) Spare Part Number 379799-001 413686-001 413685-001 413684-001 413681 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 63
Illustrated Parts Catalog Computer Major Components 3-6 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 64
Catalog Table 3-1 Spare Parts: Computer Major Components (Continued) Item 10 Description Mini Card modules 802. Republic Guam Guatemala Hong Kong Panama India Indonesia Malaysia Mexico New Zealand Spare Part Number 407253-001 407253-002 Uruguay Venezuela 407253-291 407254-001 407254-002 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 65
Illustrated Parts Catalog Computer Major Components 3-8 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 66
Catalog Table 3-1 Spare Parts: Computer Major Components (Continued) Item 10 Description Mini Card modules ( Pakistan Peru Qatar South Korea 802.11a/b/g GL WLAN module for use in Japan Spare Part Number 407575-002 Norway Oman Slovenia South Africa Spain Sri Lanka Sweden Switzerland Turkey The - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 67
Illustrated Parts Catalog Computer Major Components 3-10 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 68
Combo Drive 8X Max DVD-ROM drive 24X Max CD-ROM drive Spare Part Number 409280-004 Ukraine 414042-001 414041-001 414040-001 399441-001 399441-001 441074-001 417516-001 417516-001 441094-001 441095-001 416407-001 413702-001 413700-001 413701-001 413699-001 413698-001 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 69
Illustrated Parts Catalog Computer Major Components 3-12 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 70
cable and audio board cable) Base enclosure For full-featured model For defeatured model Bluetooth® module (includes Bluetooth module cable) Batteries 6-cell, 4.8-AH 6-cell, 4.0-AH Hard drives 7200 rpm 100 GB 416415-001 5400 rpm 120 GB 100 GB 80 GB 60 GB 40 GB Spare Part Number 417517 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 71
Illustrated Parts Catalog 3.3 Plastics Kit 3-14 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 72
-001 Memory module compartment cover (includes 1 captive screw, captured by a C-clip) Bluetooth module cover (includes 1 captive screw, captured by a C clip) Computer feet (8) PC Card slot bezel Hard drive cover (includes 2 captive screws, captured by C-clips) Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 73
Illustrated Parts Catalog 3.4 Mass Storage Devices 3-16 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 74
Combo Drive 4X Max DVD±RW and CD-RW Double-Layer Combo Drive 24X Max DVD/CD-RW Combo Drive 8X Max DVD-ROM drive 24X Max CD-ROM drive Spare Part Number 416414-001 413853-001 413852-001 413851-001 413850-001 413702-001 413700-001 413701-001 413699-001 413698-001 Maintenance and Service Guide 3-17 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 75
Part Information Description 65-watt AC adapter, for full-featured models 65-watt AC adapter, for defeatured models External MultiBay II External MultiBay II power cable and stand HP Extended Life Battery HP Docking Station HP Docking Station Miscellaneous Plastics Kit MultiBay 8X DVD-ROM Drive - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 76
Table 3-4 Miscellaneous (Not Illustrated) Spare Part Information (Continued) Description Power cords: For use in the United States For in Japan For use in Korea For use in Israel For use in Switzerland Spare Part Number 246959-001 246959-011 246959-021 246959-031 246959-061 246959-081 246959-201 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 77
Table 3-4 Miscellaneous (Not Illustrated) Spare Part Information (Continued) Description Spare Part Number Screw Kit (includes the following screws; refer to Appendix A, "Screw screw ■ Torx8 T8M2.5×4.0 screw ■ Hex HM5.0×12.0 screw lock ■ Rubber screw covers 3-20 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 78
II power cable and stand HP Extended Life Battery 6-cell, 4.8-AH battery MultiBay 8X DVD-ROM Drive (for use in External MultiBay II and HP Docking Station) MultiBay 24X DVD/CD-RW Combo Drive (for use in External MultiBay II and HP Docking Station) Fan assembly Maintenance and Service Guide 3-21 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 79
Part Number 379799-001 380089-001 391172-001 398393-001 399441-001 407253-001 407253-002 407253-291 407254-001 407254-002 407254-291 Description Heat sink (includes thermal paste) HP Docking Station Miscellaneous Plastics Kit 65-W AC Adapter for use in Japan 3-22 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 80
Catalog Table 3-5 Sequential Part Number Listing (Continued) Spare Part Number 407575-001 407575-002 Description 802.11a/b/g GL WLAN module for use in the MOW! Slovenia South Africa Spain Sri Lanka Sweden Switzerland Turkey The United Kingdom Uzbekistan Maintenance and Service Guide 3-23 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 81
3-5 Sequential Part Number Listing (Continued) Spare Part Number 407575- regions: Israel Jordan Kuwait Thailand United Arab Emirates Ukraine HP Docking Station Intel Celeron 1.46-GHz processor (includes thermal paste), Max CD-ROM drive 8X Max DVD-ROM drive 3-24 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 82
rpm, 120-GB hard drive 7200 rpm, 100-GB hard drive System board (includes RTC battery) USB/audio board (includes USB board cable and audio board cable) Top cover (includes TouchPad and speakers) Base enclosure Switch cover (includes LED board and LED board cable) Maintenance and Service Guide 3-25 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 83
for use in Sweden Keyboard for use in Switzerland Keyboard for use in French Canada Keyboard for use in Portugal Keyboard for use in Turkey Keyboard for use in Greece Keyboard for use in Latin America Keyboard for use in Saudi Arabia Keyboard for use in Brazil 3-26 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 84
Keyboard for use in Japan Keyboard for use in Taiwan Keyboard for use in Korea Keyboard for use internationally Keyboard for use in Slovenia Keyboard for use in Israel Keyboard for use in Iceland Screw Kit, for full-featured models Plastics Kit 6-cell, 4.0-AH battery and Service Guide 3-27 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 85
Catalog Table 3-5 Sequential Part Number Listing (Continued) Spare Part Number 439222-001 439223-001 439224-001 439225-001 439802-001 439803-001 441074-001 defeatured models System board, GM, for defeatured models System board, GML, for defeatured models 3-28 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 86
. 4.1 Tools Required You will need the following tools to complete the removal and replacement procedures: ■ Magnetic screwdriver ■ Phillips P0 and P1 screwdrivers ■ Torx8 screwdriver ■ Flat-bladed screwdriver ■ Hex 5.0-mm socket drive for system board screw locks Maintenance and Service Guide 4-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 87
all cases, avoid bending, twisting, or tearing cables. Be sure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. 4-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 88
Replacement Preliminaries 4.3 Preventing Damage to Removable Drives Removable drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a removable drive, or loss of information, observe the following precautions: ■ Before removing or inserting a hard - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 89
Removal and Replacement Preliminaries 4.4 Preventing Electrostatic Damage Many electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks layers, reducing its life expectancy. 4-4 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 90
-sensitive parts in their containers until the parts arrive at static-free workstations. ■ Place items on a grounded surface before removing items 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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 91
components, parts, and assemblies by the case or PCM laminate. Handle these items only at static-free 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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 92
Removal and Replacement Preliminaries 4.7 Grounding Equipment and Methods Grounding equipment must include either a wrist tabletop workstations with ground cords of one megohm resistance. ■ Static-dissipative tables or floor mats with hard ties to the ground. ■ Field service kits. ■ Static awareness - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 93
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 94
, replaced, or loosened when servicing the computer. Make special note of each screw and screw lock size and location during removal and replacement. Refer to Appendix A, "Screw Listing," for detailed information on screw and screw lock sizes, locations, and usage. Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 95
Removal and Replacement Procedures 5.1 Serial Number Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the computer. Serial Number Location 5-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 96
Disassembly Battery Hard Drive Computer Feet Optical Drive External Memory Module Bluetooth Module Keyboard Thermal Plate Fan Assembly Heat Sink # of s Removed 0 2 loosened to remove the hard drive cover 1 loosened to remove the hard drive 4 to disassemble hard drive 0 1 to remove the optical drive - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 97
your country or region. If you install a device and then receive a warning message, remove the device to restore computer functionality. Then contact Customer Care. Internal Memory Module 0 RTC Battery 0 Switch Cover 3 Display Assembly 8 Top Cover 16 full-featured model 13 defeatured model - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 98
Removal and Replacement Procedures 5.3 Preparing the Computer for Disassembly Before you begin any removal or installation procedures: 1. Shut down the computer. If you are 2. Disconnect all external devices connected to the computer. 3. Disconnect the power cord. Maintenance and Service Guide 5-5 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 99
toward you. b. Slide the battery release latch on the right 1 and then the battery release latch on the left 2 to release the battery. c. Slide the battery 3 straight back and remove it. Removing the Battery Reverse the above procedure to install the battery. 5-6 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 100
Drive Removal and Replacement Procedures Hard Drive Spare Part Number Information 7200 rpm 100 GB 416415-001 5400 rpm 120 GB 100 GB 80 GB 60 GB 40 GB 416414-001 413853-001 413852-001 413851-001 413850-001 1. Prepare the computer for disassembly (Section 5.3). Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 101
the hard drive cover to the computer. 3. Lift the left side of the hard drive cover 2 and swing it to the right. 4. Remove the hard drive cover. ✎ The hard drive cover is included in the Plastics Kit, spare part number 417527-001. Removing the Hard Drive Cover 5-8 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 102
.0 spring-loaded hard drive retention screw 1. 6. Grasp the mylar tab 2 on the left side of the hard drive and slide the hard drive to the right 3 to disconnect it from the system board. 7. Remove the hard drive 4 from the hard drive bay. Removing the Hard Drive Maintenance and Service Guide 5-9 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 103
Remove the four Phillips PM3.0×3.0 screws 1 that secure the hard drive frame to the hard drive. 9. Lift the frame 2 straight up to remove if from the hard drive. Removing the Hard Drive Frame Reverse the above procedure to reassemble and install the hard drive. 5-10 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 104
Removal and Replacement Procedures 5.5 Computer Feet The computer feet are adhesive-backed rubber pads. The feet are included in the Plastics Kit, spare part number 417527-001. Replacing the Computer Feet Maintenance and Service Guide 5-11 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 105
you. 3. Remove the Torx8 T8M2.5×4.0 screw 1 that secures the optical drive to the computer. 4. Insert a flat-bladed driver into the slot 2 on the bottom of the computer and push the tab. 5. Remove the optical drive 3 from the computer. Removing the Optical Drive 5-12 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 106
replace the optical drive bracket, remove the two Phillips PM2.0×3.0 screws 1 that secure the bracket to the optical drive. 7. Remove the optical drive bracket 2. Removing the Optical Drive Bracket Reverse the above procedure to reassemble and install an optical drive. Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 107
Removal and Replacement Procedures 5.7 External Memory Module Memory Module Spare Part Number Information 1-DIMM, PC2-5300 1024 MB 512 MB 256 MB 414046-001 414045-001 414044-001 1-DIMM, PC2-4200 1024 MB 512 MB 256 MB 414042-001 414041-001 414040-001 1. Prepare the computer for disassembly ( - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 108
Lift the right side of the cover 2 and swing it up and to the left. 5. Remove the memory module compartment cover. ✎ The memory module compartment cover is included in the Plastics Kit, spare part number 417527-001. Removing the Memory Module Compartment Cover Maintenance and Service Guide 5-15 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 109
socket at an angle. 8. Remove the memory module. ✎ Memory modules are designed with a notch 3 to prevent incorrect installation into the memory module socket. Removing the External Memory Module Reverse the above procedure to install an external memory module. 5-16 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 110
to the computer. 4. Remove the Bluetooth module cover 2 from the computer. ✎ The Bluetooth module cover is included in the Plastics Kit, spare part number 417527-001. 5. Disconnect the Bluetooth module cable 3 from the system board. Removing the Bluetooth Module Maintenance and Service Guide 5-17 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 111
secure the Bluetooth module to the Bluetooth module cover. 7. Remove the Bluetooth module 2 from the cover. 8. Disconnect the Bluetooth module cable 3 from the module. Removing the Bluetooth Module Cover Reverse the above procedure to install a Bluetooth module. 5-18 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 112
5.9 Keyboard Removal and Replacement Procedures Keyboard Spare Part Number Information Keyboards (include keyboard cable) For use in: Brazil The -001 1. Prepare the computer for disassembly (Section 5.3). 2. Position the computer with the front toward you. Maintenance and Service Guide 5-19 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 113
Removal and Replacement Procedures 3. Remove the two Torx8 T8M2.5×10.0 screws that secure the keyboard to the computer. Removing the Keyboard Screws 5-20 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 114
Removal and Replacement Procedures 4. Turn the computer display-side up with the front toward you. 5. Open the computer as far as possible. 6. Slide the four keyboard the keyboard 2 and swing it toward you until it rests on the palm rest. Releasing the Keyboard Maintenance and Service Guide 5-21 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 115
Release the zero insertion force (ZIF) connector 1 to which the keyboard cable is connected and disconnect the keyboard cable 2 from the system board. Disconnecting the Keyboard Cable 9. Remove the keyboard. Reverse the above procedure to install the keyboard. 5-22 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 116
Removal and Replacement Procedures 5.10 Thermal Plate Thermal plate Thermal Plate Spare Part Number Information 417521-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). ✎ The following screws should be removed, then installed, in the 1, 2, 3, 4 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 117
Removal and Replacement Procedures 5.11 Fan Assembly Fan Assembly Fan Assembly Spare Part Number Information 378233-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). 3. Release the thermal plate (Section 5.9). 4. Disconnect the fan cable 1 from the - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 118
Sink Removal and Replacement Procedures Heat Sink Spare Part Number Information Heat sink (includes thermal paste) 379799-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). 3. Remove the fan assembly (Section 5.11). Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 119
Removal and Replacement Procedures ✎ The following s should be loosened and installed in the 1, 2, 3, 4 sequence stamped on the heat sink. sink 2 until it disengages from the processor. 6. Slide the heat sink 3 to the right and remove it. Removing the Heat Sink 5-26 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 120
cleaned from the surfaces of the heat sink 1 and processor 2 each time the heat sink is removed. Thermal paste is included with all heat sink and processor spare part kits. Replacing the Thermal Paste Reverse the above procedure to install the heat sink. Maintenance and Service Guide 5-27 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 121
Removal and Replacement Procedures 5.13 Processor Processor Spare Part Number Information Processors (include disassembly (Section 5.3) and remove the following components: a. Keyboard (Section 5.9) b. Fan assembly (Section 5.11) c. Heat sink (Section 5.12) 5-28 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 122
processor 2 straight up and remove it. ✎ The gold triangle 3 on the processor should be aligned with the triangle icon 4 embossed on the processor socket when you install the processor. Removing the Processor Reverse the above procedure to install the processor. Maintenance and Service Guide 5-29 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 123
Removal and Replacement Procedures 5.14 Mini Card Module Mini Card Module Spare Part Number Information 802.11 b/g HS WLAN module for use in North America 802.11 b/g HS WLAN 407254-291 407575-001 Paraguay Saudi Arabia Taiwan The United States Vietnam 5-30 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 124
Removal and Replacement Procedures Mini Card Module Spare Part Number Information (Continued) 802.11 a/b/g GL WLAN module 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). 3. Remove the thermal plate (Section 5.9). Maintenance and Service Guide 5-31 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 125
Removal and Replacement Procedures 4. Make note of which antenna cable is attached to which antenna clip on the Mini Card module before disconnecting the cables, then disconnect the auxiliary and main antenna cables 1 from the Mini Card module. 5. Remove the computer.) 6. Remove the Mini Card module - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 126
Removal and Replacement Procedures 5.15 Internal Memory Module Memory Module Spare Part Number Information 1-DIMM, PC2-5300 1024 MB 512 MB 256 MB 414046-001 414045-001 414044-001 1-DIMM, PC2-4200 1024 MB 512 MB 256 MB 414042-001 414041-001 414040-001 1. Prepare the computer for disassembly ( - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 127
socket at an angle 2. 5. Remove the memory module. ✎ Memory modules are designed with a notch 3 to prevent incorrect installation into the memory module socket. Removing the Internal Memory Module Reverse the above procedure to install an internal memory module. 5-34 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 128
system board spare part kit. 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). 3. Remove the RTC battery from the clip in the top cover. Removing the RTC Battery Reverse the above procedure to install an RTC battery. Maintenance and Service Guide 5-35 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 129
for disassembly (Section 5.3). 2. Remove the keyboard (Section 5.9). 3. Turn the computer upside down with the rear panel toward you. 4. Remove the three Phillips PM2.0×2.0 screws that secure the switch cover to the computer. Removing the Switch Cover Screws 5-36 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 130
Removal and Replacement Procedures 5. Turn the computer display-side up with the front toward you. 6. Open the computer as far as possible. 7. Use a from the computer. 8. Swing the rear edge of the switch cover 2 up and toward you. Releasing the Switch Cover Maintenance and Service Guide 5-37 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 131
Removal and Replacement Procedures 9. Disconnect the LED board cable 1 from the system board. 10. Remove the switch cover 2. Removing the Switch Cover Reverse the above procedure to install the switch cover. 5-38 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 132
Removal and Replacement Procedures 5.18 Display Assembly Display Assembly Spare Part Number Information Display assemblies ( Prepare the computer for disassembly (Section 5.3). 2. Remove the keyboard (Section 5.9). 3. Remove the switch cover (Section 5.17). Maintenance and Service Guide 5-39 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 133
antenna cables 1 from the Mini Card module. 5. Remove the wireless antenna cables from the top cover clips (2 and 3) through which they are routed. 6. Disconnect the display cable 4 from the system board. Disconnecting the Wireless Antenna and Display Cables 5-40 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 134
Removal and Replacement Procedures 7. Remove the two Torx8 T8M2.5×10.0 screws 1 and the two Phillips PM2.0×2.0 screws 2 that secure the display assembly to the computer. Removing the Display Assembly Screws Maintenance and Service Guide 5-41 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 135
panel toward you. 9. Remove the four Torx8 T8M2.5×10.0 screws 1 that secure the display assembly to the computer. 10. Lift the display assembly 2 straight up to remove it. Removing the Display Assembly Reverse the above procedure to install the display assembly. 5-42 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 136
Removal and Replacement Procedures Top Cover Spare Part Number Information Top cover (includes TouchPad and speakers) Full-featured models Defeatured models 417518-001 441080-001 1. Prepare the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 137
.5×10.0 screws 2 that secure the top cover to the computer. Note that the defeatured model uses two fewer screws. ✎ The rubber screw covers are available in the Screw Kit, spare part number 417526-001. Removing the Top Cover Screws, Part 1 (select models only) 5-44 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 138
screws 2 that secure the top cover to the computer. Note that the defeatured model requires removal of three torx screws to remove the top cover, and does not include the left-most torx screw. Removing the Top Cover Screws, Part 2 (full-featured model shown) Maintenance and Service Guide 5-45 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 139
Removal and Replacement Procedures 7. Lift the rear edge 1 of the top cover until it disengages from the base enclosure. In each of the slots in the cover 3 straight up and remove it. Removing the Top Cover Reverse the above procedure to install the top cover. 5-46 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 140
the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive (Section 5.6) c. Keyboard (Section 5.9) d. Switch cover (Section 5.17) e. Display assembly (Section 5.18) f. Top cover (Section 5.19) Maintenance and Service Guide 5-47 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 141
. 3. Lift the right side of the modem module 2 to disconnect it from the system board. 4. Disconnect the modem module cable 3 from the modem module. 5. Remove the modem module. Removing the Modem Module Reverse the above procedure to install the modem module. 5-48 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 142
that the following components are removed from the defective system board and installed on the replacement system board: ■ Memory modules (Section 5.7 and Section 5.15) ■ Processor (Section 5.13) ■ Mini Card module (Section 5.14) ■ Modem module (Section 5.20) Maintenance and Service Guide 5-49 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 143
Removal and Replacement Procedures 1. Prepare the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive (Section 5.6) c. Bluetooth module (Section 5.8) d. Keyboard (Section 5.9) e. Thermal plate (Section 5.10) f. Fan (Section 5.11) - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 144
Removal and Replacement Procedures 3. Disconnect the following cables from the system board: 1 Modem connector cable 2 USB board cable 3 Audio board cable 4 Modem module cable Disconnecting the System Board Cables Maintenance and Service Guide 5-51 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 145
side of the external monitor connector 2 Two Torx T8M2.5×6.0 screws (full-featured model only) 3 Three Torx T8M2.5×4.0 screws (the defeatured model uses four torx screws) Removing the System Board Screws and Screw Locks (full-featured model shown) 5-52 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 146
and Replacement Procedures 5. Remove the modem connector cable 1 from the clip in the base enclosure. 6. Remove the modem module cable 2 from the clip in the system board. 7. Remove the modem connector 3 from the clip in the base enclosure. Releasing the System Board, Part 1 Maintenance and Service - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 147
and Replacement Procedures 8. Flex the right side of the base enclosure 1 until the USB 2, 1394 3, and RJ-45 connectors 4 are clear of the base enclosure. 9. Lift the front edge of the system board 5 until it rests at an angle. Releasing the System Board, Part 2 5-54 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 148
board 2 forward until the rear-right section of the system board 3 is clear of the screw boss 4 on the system board frame. 12. Remove the system board 5 from the base enclosure. Removing the System Board Reverse the above procedure to install the system board. Maintenance and Service Guide 5-55 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 149
Removal and Replacement Procedures 5.22 System Board Frame (full-featured models only) System Board Frame Spare Part Number Information System board frame 416407-001 1. Prepare the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 150
to the base enclosure. 4. Remove the audio board and USB board cables 2 from the base enclosure. 5. Lift the rear edge of the system board frame 3 until it disengages from the base enclosure. 6. Remove the system board frame. Removing the System Board Frame Maintenance and Service Guide 5-57 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 151
Procedures 7. If it is necessary to replace the modem connector cable, remove the modem connector and cable 1 from the clips 2 in the system board frame. Removing the Modem Connector Cable Reverse the above procedures to install the system board frame. 5-58 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 152
Removal and Replacement Procedures 5.23 USB/Audio Board USB/Audio Board Spare Part Number Information USB/audio board (includes audio board cable) 382677-001 1. Prepare the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive ( - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 153
Removal and Replacement Procedures 3. Remove the two Torx8 T8M2.5×4.0 screws 1 that secure the USB/audio board to the base enclosure. 4. Lift the left side of the USB/audio Removing the USB/Audio Board Reverse the above procedure to install the USB/audio board. 5-60 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 154
chapter provides physical and performance specifications. Dimensions Height (front to back) Width Depth Weight Input Power Operating voltage Operating current Table 6-1 Computer Metric 2.8 to 3.3 cm 35.8 cm 25.9 cm 60°C 32°F to 95°F 41°F to 95°F -4°F to 140°F Maintenance and Service Guide 6-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 155
, 0.5 oct/min sweep rate ✎ Applicable product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. 6-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 156
15.4.0-inch, WSXGA+ Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle 20.7 cm 33.1 cm 39.1 cm Up to 16.8 million 200:1 180 nits typical 8.1 in 13.0 in 15.4 in - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 157
15.4.0-inch, WXGA+ Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle 20.7 cm 33.1 cm 39.1 cm Up to 16.8 million 200:1 180 nits typical 8.1 in 13.0 in 15.4 in - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 158
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. Maintenance and Service Guide 6-5 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 159
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 160
DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R, CD-RW Photo CD (single and multisession) CD-Bridge Write: CD-R and CD-RW DVD-R and DVD-RW 1.5 cm (0.59 in) 12 cm (4.72 in) 8 cm (3.15 in) Maintenance and Service Guide 6-7 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 161
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 ms < 285 ms < 230 ms < 335 ms Audio output level Audio-out, 0.7 16.6 MB/s Startup time < 15 seconds Stop time < 6 seconds 6-8 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 162
-5, DVD-9, DVD-10, DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R, CD-RW Photo CD (single and multisession) CD-Bridge 1.5 cm (0.59 in) Write: CD-R and CD-RW 12 cm (4.72 in) 8 cm (3.15 in) Maintenance and Service Guide 6-9 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 163
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 ms < 285 ms < 230 ms < 335 ms Audio output level Audio-out, 0.7 Vrms MB/s Startup time < 15 seconds Stop time < 6 seconds 6-10 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 164
Specifications Table 6-7 DVD-ROM Drive Applicable disc DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18) CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and .6 MB/s Startup time < 10 seconds Stop time < 3 seconds Maintenance and Service Guide 6-11 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 165
Standard disc Mini disc Table 6-8 CD-ROM Drive CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R CD-RW Photo CD (single and multisession) CD-Bridge 1.5 cm (0.59 in) 12 cm (4.72 in) 8 cm (3.15 in) 6-12 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 166
stroke < 110 ms < 220 ms < 125 ms < 225 ms Audio output level Audio-out, 0.7 Vrms Cache buffer 128 KB/s Data transfer rate CD-R (24X) 3600 KB/s (150 KB/s at 1X CD rate) Multiword DMA mode 2 16.6 MB/s Startup time < 8 seconds Stop time < 4 seconds Maintenance and Service Guide 6-13 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 167
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. 6-14 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 168
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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 169
PS/2 TouchPad IRQ13 Numeric data processor IRQ14 Primary IDE channel IRQ15 Secondary 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 nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 170
chipset configuration registers Unused 87334 "Super I/O" configuration for CPU Counter/timer registers 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 6-17 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 171
controller no. 2 Unused Coprocessor busy clear/reset Unused Unused Secondary fixed disk controller Unused Primary fixed disk controller Unused JoyStick (decoded in ESS1688) Unused Entertainment audio Unused Unused Unused Unused Unused Unused Reserved serial port 6-18 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 172
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 6-19 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 173
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 6-20 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 174
) or spare part number 441079-001 (defeatured model). 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 frame to the hard drive (documented in Section 5.4) Maintenance and Service Guide A-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 175
Screw Listing Phillips PM3.0×3.0 Screw Locations A-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 176
Two screws that secure the hard drive cover to the computer (screws are captured on the cover by C-clips; documented in Section 5.4) 2 One screw that secures the memory module compartment cover to the computer 5.8) Phillips PM2.0×5.0 Captive Screw Locations Maintenance and Service Guide A-3 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 177
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 a C-clip; documented in Section 5.4) Phillips PM2.5×13.0 Captive Screw Location A-4 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 178
Table A-4 Torx8 T8M2.5×4.0 Screw Head mm Color Qty. Length Thread Width Black 13/11* 4.0 mm 2.5 mm 5.0 mm Where used: One screw that secures the optical drive to the computer (documented in Section 5.6) * 11 screws in defeatured model Torx8 T8M2.5×4.0 Screw Location Maintenance and - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 179
) * 11 screws in defeatured model Note: Defeatured model uses only the right three screws to secure the top cover. Torx8 T8M2.5×4.0 Screw Locations A-6 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 180
the left-most screw 2.The system board frame is not spared in the defeatured model. Torx8 T8M2.5×4.0 Screw Locations (full-featured model shown) Maintenance and Service Guide A-7 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 181
Torx8 T8M2.5×4.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 13/11* 4.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the USB/audio board to the computer (documented in Section 5.23) * 11 screws in defeatured model Torx8 T8M2.5×4.0 Screw Locations A-8 Maintenance and - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 182
Listing Table A-5 Phillips PM2.0×3.0 Screw Head mm Color Qty. Length Thread Width Silver 2 3.0 mm 2.0 mm 3.0 mm Where used: 2 screws that secure the optical drive bracket to the optical drive (documented in Section 5.6) Phillips PM2.0×3.0 Screw Locations Maintenance and Service Guide A-9 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 183
1.5 mm 5.0 mm Where used: 2 screws that secure the Bluetooth module to the Bluetooth module cover (documented in Section 5.8) Phillips PM1.5×3.0 Screw Locations A-10 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 184
T8M2.5×10.0 Screw Head mm Color Qty. Length Thread Width Black 20/18* 10.0 mm 2.5 mm 5.0 mm Where used: 1 Two screws that secure the keyboard to the computer (documented in Section 5.9) 2 Four screws that secure the display assembly to the computer (documented in Section 5.18) * 18 screws on - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 185
that secure the display assembly to the computer (documented in Section 5.18) * 18 screws on defeatured model Torx8 T8M2.5×10.0 Screw Locations A-12 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 186
) * 18 screws on defeatured model Note: Screws 1 are not included on the defeatured model. Torx8 T8M2.5×10.0 Screw Locations (full-featured model shown) Maintenance and Service Guide A-13 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 187
Screw Listing Table A-8 Phillips PM2.5×3.0 Screw Head mm Color Qty. Length Thread Width Black 2 3.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the thermal plate to the computer (documented in Section 5.10) Phillips PM2.5×3.0 Screw Locations A-14 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 188
Screw Listing Table A-9 Phillips PM2.5×5.0 Screw Head mm Color Qty. Length Thread Width Black 2 5.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the thermal plate to the computer (documented in Section 5.10) Phillips PM2.5×5.0 Screw Locations Maintenance and Service Guide A-15 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 189
5.0 mm Where used: 2 captive screws that secure the fan assembly to the computer (documented in Section 5.11) Phillips PM2.5×7.0 Captive Screw Locations A-16 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 190
2.0 mm 5.0 mm Where used: 4 captive screws that secure the heat sink to the computer (documented in Section 5.12) Phillips PM2.0×8.0 Captive Screw Locations Maintenance and Service Guide A-17 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 191
Screw Listing Table A-12 Phillips PM2.0×4.0 Screw Head mm Color Qty. Length Thread Width Silver 2 4.0 mm 2.0 mm 5.0 mm Where used: 2 screws that secure the Mini Card module to the computer (documented in Section 5.14) Phillips PM2.0×4.0 Screw Locations A-18 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 192
Screw Listing Table A-13 Phillips PM2.0×2.0 Screw Head mm Color Qty. Length Thread Width Black 5 2.0 mm 2.0 mm 7.0 mm Where used: 3 screws that secure the switch cover to the computer (documented in Section 5.17) Phillips PM2.0×2.0 Screw Locations Maintenance and Service Guide A-19 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 193
5 2.0 mm 2.0 mm 7.0 mm Where used: 2 screws that secure the display assembly to the computer (documented in Section 5.18) Phillips PM2.0×2.0 Screw Locations A-20 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 194
Screw Listing Table A-14 Phillips PM2.5×4.0 Screw Head mm Color Qty. Length Thread Width Black 2 4.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the modem module to the computer (documented in Section 5.20) Phillips PM2.5×4.0 Screw Locations Maintenance and Service Guide A-21 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 195
Where used: 2 screw locks that secure the system board to the computer (documented in Section 5.21) Hex HM5.0×12.0 Screw Lock Locations A-22 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 196
). Full-featured models use 2 screws. *Screws 1 and 2 on defeatured models. Only screws 1 on full-featured models. Torx8 T8M2.5×6.0 Screw Locations (defeatured model shown) Maintenance and Service Guide A-23 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 197
B Backup and Recovery in Windows Vista ✎ You can only recover files that you have previously backed up. HP recommends that you use HP Backup & Recovery Manager to create an entire drive backup as soon as you set up your computer. With HP Backup & Recovery Manager, you can perform the following tasks - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 198
, and then select Edit > Paste. ✎ Before you can perform backup and recovery procedures, the computer must be connected to external power. ✎ Drivers, utilities, and applications installed by HP can be copied to a CD or to a DVD using HP Backup & Recovery Manager. B-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 199
and folders, and then click Next. 5. Follow the on-screen instructions. Backing up the Entire Hard Drive When you perform a complete backup of the hard drive, you are saving the full factory image, including the Windows® operating system, software applications, and all personal files and folders - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 200
> All Programs > HP Backup & Recovery > Backup and Recovery Manager. 2. Click Next. 3. Click Back up to protect system settings and important data files, and then click Next. 4. Click Back up entire hard drive, and then click Next. 5. Follow the on-screen instructions. Creating Recovery Points When - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 201
, such as at system restart or when you dock to an optional docking station (select models only). To schedule backups: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup Scheduler. 2. Follow the on-screen instructions. Performing a Recovery ✎ You can only recover files that you have - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 202
computer. 3. Follow the on-screen instructions. Performing a Recovery from the Hard Drive There are 2 ways to initiate a recovery from the hard drive: ■ From within Windows ■ From the recovery partition Initiating a Recovery in Windows To initiate a recovery in Windows, follow these steps: 1. Back - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 203
from the hard drive recovery partition, follow these steps: 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. Maintenance and Service Guide B-7 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 204
). ✎ 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 AC power during the process. ■ Only one set of the recovery discs can be created per computer. ■ Number each disc before inserting it into the - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 205
in Windows XP To create 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 CDs or DVDs to recover the system (Highly recommended), and then click Next. 4. Follow the on-screen - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 206
and then select Edit > Paste. ✎ Before you can perform backup and recovery procedures, the computer must be connected to external power. ✎ Drivers, utilities, and applications installed by HP can be copied to a CD or to a DVD using HP Backup and Recovery Manager. Maintenance and Service Guide C-3 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 207
and folders, and then click Next. 5. Follow the on-screen instructions. Backing Up the Entire Hard Drive When you perform a complete backup of the hard drive, you are saving the full factory image, including the Windows® operating system, software applications, and all personal files and folders - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 208
Backup and Recovery in Windows XP 2. Click Next. 3. Click Back up to protect system settings and important data files, and then click Next. 4. Click Back up entire hard drive, and then click Next. 5. Follow the on-screen instructions. Creating Recovery Points When you back up modifications since - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 209
, such as at system restart or when you dock to an optional docking station (select models only). To schedule backups: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup Scheduler. 2. Follow the on-screen instructions. Performing a Recovery ✎ You can only recover files that you have - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 210
these steps: 1. Back up all personal files. 2. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 3. Click Next. 4. Click Recover important files or the entire system, and then click Next. 5. Follow the on-screen instructions. Maintenance and Service Guide C-7 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 211
from the hard drive recovery partition, follow these steps: 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. C-8 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 212
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 that might Industries Alliance (EIA) at http://www.eiae.org. Maintenance and Service Guide D-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 213
disassembly instructions for the display assembly. The display assembly must be disassembled to gain access to the backlight 1 and the liquid crystal display (LCD) panel 2. ✎ Disassembly procedures provided in this appendix are general disassembly instructions. Specific details, such as screw sizes - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 214
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 D-3 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 215
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 D-4 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 216
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 D-5 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 217
Display Component Recycling 5. Remove all s 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 D-6 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 218
Display Component Recycling 7. Turn the display panel assembly upside down. 8. Remove all s that secure the display panel frame to the display panel. Removing the Display Panel Frames Maintenance and Service Guide D-7 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 219
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 D-8 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 220
Display Component Recycling 11. Remove the s 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 D-9 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 221
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 D-10 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 222
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 D-11 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 223
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 D-12 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 224
cable 1 from the LCD panel. 20. Remove the s 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 D-13 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 225
Display Component Recycling 23. Remove the LCD panel. Removing the LCD Panel 24. Recycle the LCD panel and backlight. D-14 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 226
E 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 E-1 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 227
Connector Pin Assignments Table D-2 Audio-In (Microphone) Pin Signal 1 Audio signal in 2 Audio signal in Pin Signal 3 Ground E-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 228
Connector Pin Assignments Table D-3 Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - Pin Signal 3 Data + 4 Ground Maintenance and Service Guide E-3 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 229
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 E-4 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 230
Connector Pin Assignments Table D-5 RJ-11 (Modem) Pin Signal 1 Unused 2 Tip 3 Ring Pin Signal 4 Unused 5 Unused 6 Unused Maintenance and Service Guide E-5 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 231
Connector Pin Assignments Table D-6 RJ-45 (Network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused Pin Signal 5 Unused 6 Receive - 7 Unused 8 Unused E-6 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 232
The power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased. Power cord sets for use in other countries or regions must meet the requirements of the country or region where the computer is used. Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 233
rating of 125 or 250 V AC, as required by each country or region's power system. ■ The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC 320 Standard Sheet C13 connector for mating with the appliance inlet on the back of the computer. F-2 Maintenance and Service Guide - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 234
cord must be Type HO5VV-F, 3-conductor, 1.0 mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used. 2. The flexible cord cord, and cord - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 235
cord must be Type HO5VV-F, 3-conductor, 1.0 mm² conductor size. Power cord appliance coupler, flexible cord, and wall plug must flexible cord must cord must be Type RVV, 3-conductor, 0.75 mm² conductor size. Power cord cord must be Type VCTF, 3-conductor, 0.75 mm² conductor size. Power cord - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 236
port 1-12 A AC adapter, spare part number 3-18, 3-21 accessory battery connector 1-19 arrow keys 1-14 audio troubleshooting 2-25 audio-in jack location 1-9 pin assignments E-2 audio-out jack location 1-9 pin assignments E-1 B backing up hard drive Windows Vista C-3 Windows XP B-4 specific files or - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 237
E-4 network E-6 RJ-11 E-5 RJ-45 E-6 Universal Serial Bus (USB) E-3 connectors, service considerations 4-2 creating recovery points C-4 D design overview 1-20 disassembly sequence chart 5-3 diskette drive OS loading problems 2-23 precautions 4-3 display assembly removal 5-39 spare part numbers - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 238
1-14 fan assembly removal 5-24 spare part number 3-3, 3-21, 5-24 features 1-2 feet illustrated 3-15 locations 5-11 flowcharts, troubleshooting no audio 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 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 239
, 5-25 HP Docking Station, spare part number 3-18, 3-24 HP Extended Life Battery, spare part number 3-18, 3-21 I I/O address specifications 6-17 initiating a Recovery from the hard drive Recovery Partition Windows Vista C-7 in Windows Vista C-6 interrupt specifications 6-15 K keyboard removal 5-19 - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 240
illustrated 3-15 PC Card slots 1-12 performing a Recovery from hard drive Windows Vista C-6 from Recovery Discs Windows Vista C-6 plastic parts 4-2 Plastics Kit contents 3-15 spare part number 3-5, 3-15, 3-27 pointing device, troubleshooting 2-29 power button 1-16 power connector 1-10 power cord set - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 241
Index power, troubleshooting 2-12 processor removal 5-28 spare part numbers 3-5, 3-24, 3-25, 3-27, 3-28, 5-28 R rear components 1-11 Recovery Windows Vista C-5 removal/replacement preliminaries 4-1 procedures 5-1 right-side components 1-9 RJ-11 jack location 1-12 pin assignments E-5 RJ-45 jack - Compaq nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service - Page 242
/audio board removal 5-59 spare part number 3-13, 3-25, 5-59 V vents 1-19 video troubleshooting 2-16 volume buttons 1-16 W when to back up C-1 Windows applications key 1-14 Windows logo key 1-14 wireless button 1-16 wireless light 1-7, 1-16 workstation precautions 4-6 Maintenance and Service Guide
Maintenance and Service
Guide
HP Compaq nx7300 and nx7400 Notebook PC
Document Part Number: 410775-002
March 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.