Page 1 Maintenance and Service Guide HP Pavilion dv1400 Entertainment Notebook PC HP Compaq nx4820 Notebook PC Compaq Presario V2400 Notebook PC Document Part Number: 396166-002 November 2005 This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts;...
Page 2: Maintenance And Service Guide
Hewlett-Packard Company under license. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
Page 3: Table Of Contents
1 Product Description 1.1 Features ........1–2 1.2 Resetting the Computer.
Page 4 Contents 3 Illustrated Parts Catalog 3.1 Serial Number Location ..... . 3–1 3.2 Computer Major Components....3–2 3.3 Miscellaneous Plastics Kit .
Page 5 Contents 5 Removal and Replacement Procedures 5.1 Serial Number ......5–2 5.2 Disassembly Sequence Chart .
Page 6: Specifications
Contents 6 Specifications A Connector Pin Assignments B Power Cord Set Requirements C Screw Listing D Display Component Recycling Index Maintenance and Service Guide...
Page 7: Product Description
Product Description The HP Pavilion dv1400 Entertainment Notebook PC 1 and the HP Compaq nx4820 Notebook PC and Compaq Presario V2400 Notebook PC (both represented by 2) offer advanced modularity, Intel® Pentium® M and Celeron® M processors, and extensive multimedia support.
Page 8: Features
Product Description 1.1 Features ■ The following processors are available, varying by computer model: ❏ Intel Pentium M 770 (2.13-GHz) with 400-MHz FSB ❏ Intel Pentium M 760 (2.0-GHz) with 400-MHz FSB ❏ Intel Pentium M 750 (1.8-GHz) with 400-MHz FSB ❏...
Page 9 ❏ Audio-in (microphone) ❏ Power ❏ IEEE 1394 digital (select models only) ❏ S-Video-out (select models only) ❏ Infrared (HP Pavilion models only) ❏ Parallel ❏ Serial ❏ Docking (select models only) ❏ Digital memory card reader (select models only)
Page 10: Resetting The Computer
Product Description 1.2 Resetting the Computer If the computer you are servicing has an unknown password, follow these steps to clear the password. These steps also clear CMOS: 1. Prepare the computer for disassembly (refer to “Preparing the Computer for Disassembly,” information).
Page 11: Power Management
1.3 Power Management The computer comes with power management features that extend battery operating time and conserve power. The computer supports the following power management features: ■ Standby ■ Hibernation ■ Setting customization by the user ■ Hotkeys for setting the level of performance ■...
Page 12: External Components
Product Description 1.4 External Components The external components on the front of the HP Pavilion dv1400 are shown below and described in Table 1-1. Front Components, HP Pavilion dv1400 1–6 Maintenance and Service Guide...
Page 13: Front Components
(microphone) jack Audio-out (headphone) jack (2) Maintenance and Service Guide Table 1-1 Front Components HP Pavilion dv1400 Function Produce stereo sound. ■ On: Computer is turned on. ■ Blinking: Computer is in standby. ■ Off: Computer is off. On or blinking: The internal hard drive or an optical drive is being accessed.
Page 14 Product Description The external components on the front of the HP Compaq nx4820 and Compaq Presario V2400 are shown below and described in Table 1-2. Front Components, HP Compaq nx4820 and Compaq Presario V2400 1–8 Maintenance and Service Guide...
Page 15 HP Compaq nx4820 and Compaq Presario V2400 Item Component Speakers (2) Wireless button light (select models only) Power light IDE (Integrated Drive Electronics) drive light Battery light Display release latch Audio-in (microphone) jack Audio-out (headphone) jack (2 on HP Pavilion...
Page 16 Product Description The external components on the right side of the HP Pavilion dv1400 are shown below and described in Table 1-3. Right-Side Components, HP Pavilion dv1400 1–10 Maintenance and Service Guide...
Page 17 S-Video-out jack (select models only) Maintenance and Service Guide Table 1-3 Right-Side Components HP Pavilion dv1400 Function Connect an optional USB device. In Windows, supports digital memory cards. Connects an optional 1394a device such as a scanner, digital camera, or digital camcorder.
Page 18 Product Description The external components on the right side of the HP Compaq nx4820 and Compaq Presario V2400 are shown below and described in Table 1-4. Right-Side Components, HP Compaq nx4820 and Compaq Presario V2400 1–12 Maintenance and Service Guide...
Page 19 HP Compaq nx4820 and Compaq Presario V2400 Item Component USB connectors (2) Digital memory card reader (select models only) 1394 port (select models only) Digital memory card reader light (select models only) Optical drive S-Video-out jack (select models only) Maintenance and Service Guide...
Page 20 Product Description The external components on the rear and left side of the HP Pavilion dv1400 are shown below and described in Table 1-5. Rear and Left-Side Components, HP Pavilion dv1400 1–14 Maintenance and Service Guide...
Page 21 Supports an optional Type I or Type II 32-bit (CardBus) or 16-bit PC Card. Also serves as a storage location for the optional HP Mobile Remote Control. Ejects an optional PC Card from the PC Card slot. Attaches an optional security cable to the computer.
Page 22 Product Description The external components on the rear and left side of the HP Compaq nx4820 and Compaq Presario V2400 are shown below and described in Table 1-6. Rear and Left-Side Components, HP Compaq nx4820 and Compaq Presario V2400 1–16...
Page 23 Rear and Left-Side Components HP Compaq nx4820 and Compaq Presario V2400 Item Component Exhaust vent Power connector External monitor port Expansion port RJ-45 (network) jack RJ-11 (modem) jack USB connector PC Card slot PC Card eject button Security cable slot...
Page 24 Product Description The keyboard components on the HP Pavilion dv1400 are shown below and described in Table 1-7. Keyboard Components, HP Pavilion dv1400 1–18 Maintenance and Service Guide...
Page 25: Keyboard Components
Windows applications key Windows logo key Maintenance and Service Guide Table 1-7 Keyboard Components HP Pavilion dv1400 Function Combines with other keys to perform system tasks. For example, pressing fn+f7 decreases screen brightness. Enables caps lock and turns on the caps lock light.
Page 26 Product Description The keyboard components on the HP Compaq nx4820 and Compaq Presario V2400 are shown below and described in Table 1-8. Keyboard Components, HP Compaq nx4820 and Compaq Presario V2400 1–20 Maintenance and Service Guide...
Page 27 HP Compaq nx4820 and Compaq Presario V2400 Item Component fn key caps lock key f1 to f12 keys (12) num lock key Keypad keys (15) Arrows keys Windows applications key Windows logo key Maintenance and Service Guide Table 1-8 Keyboard Components...
Page 28 Product Description The top components on the HP Pavilion dv1400 are shown below and described in Table 1-9. Top Components, Part 1, HP Pavilion dv1400 Item Component Display switch Power button 1–22 Table 1-9 Top Components, Part 1 HP Pavilion dv1400...
Page 29 HP Pavilion dv1400 (Continued) Item Component DVD button Music button Previous/Rewind Button Play/Pause button Maintenance and Service Guide Table 1-9 Top Components, Part 1 Function When the computer is ■ Off, opens QuickPlay DVD mode. ■ On in Windows, opens the default Windows DVD application.
Page 30 Product Description The top components on the HP Pavilion dv1400 are shown below and described in Table 1-10. Top Components, Part 2, HP Pavilion dv1400 1–24 Maintenance and Service Guide...
Page 31 Volume up button Wireless button Maintenance and Service Guide Table 1-10 Top Components, Part 2 HP Pavilion dv1400 Function When a disc is in the optical drive: ■ Press once to play the next track or chapter. ■ Press fn+this button to fast forward.
Page 32 Product Description The top components on the HP Pavilion dv1400 are shown below and described in Table 1-11. Top Components, Part 3, HP Pavilion dv1400 1–26 Maintenance and Service Guide...
Page 33 Left and right TouchPad buttons Maintenance and Service Guide Table 1-11 Top Components, Part 3 HP Pavilion dv1400 Function Moves the pointer. On: TouchPad is enabled. On: Caps lock is on. ■ On: Computer is turned on. ■ Blinking: Computer is in standby.
Page 34 Product Description The top components on the HP Compaq nx4820 and Compaq Presario V2400 are shown below and described in Table 1-12. Top Components, Part 1, HP Compaq nx4820 and Compaq Presario V2400 HP Compaq nx4820 and Compaq Presario V2400...
Page 35 HP Compaq nx4820 and Compaq Presario V2400 (Continued) Item Component Wireless button Wireless light Power button Power light Volume down button Volume mute button Mute light Volume up button Num lock light Maintenance and Service Guide Table 1-12 Top Components, Part 1...
Page 36 Product Description The top components on the HP Compaq nx4820 and Compaq Presario V2400 are shown below and described in Table 1-13. Top Components, Part 2, HP Compaq nx4820 and Compaq Presario V2400 1–30 Maintenance and Service Guide...
Page 37 HP Compaq nx4820 and Compaq Presario V2400 Item Component TouchPad horizontal scrolling region TouchPad TouchPad light TouchPad on/off button TouchPad vertical scroll region Left and right TouchPad buttons Maintenance and Service Guide Table 1-13 Top Components, Part 2 Function Scrolls toward left side or right side.
Page 38: Bottom Components
Product Description The external components on the bottom of the HP Pavilion dv1400 are shown below and described in Table 1-14. Bottom Components, HP Pavilion dv1400 Item Component Optical drive Battery pack release latch Battery pack 1–32 Table 1-14 Bottom Components...
Page 39 HP Pavilion dv1400 (Continued) Item Component Exhaust vents (4) Hard drive bay Mini PCI compartment Memory module compartment Label areas (2) Maintenance and Service Guide Table 1-14 Bottom Components Function Provide airflow to cool internal components. Ä To prevent overheating, do not obstruct vents.
Page 40 Product Description The external components on the bottom of the HP Compaq nx4820 and Compaq Presario V2400 are shown below and described in Table 1-15. Bottom Components, HP Compaq nx4820 and Compaq Presario V2400 HP Compaq nx4820 and Compaq Presario V2400...
Page 41 HP Compaq nx4820 and Compaq Presario V2400 (Continued) Item Component Exhaust vents (4) Hard drive bay Mini PCI compartment Memory module compartment Label areas (2) Maintenance and Service Guide Table 1-15 Bottom Components Function Provide airflow to cool internal components.
Page 42: Design Overview
Product Description 1.5 Design Overview This section presents a design overview of key parts and features of the computer. Refer to to identify replacement parts, and Replacement Procedures,” The system board provides the following device connections: ■ Memory module ■ Mini PCI communications devices ■...
Page 43: Troubleshooting
Å WARNING: Only authorized technicians trained by HP should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly-/module-level repair. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or modifications to any printed wiring board.
Page 44: Accessing Computer Setup
Troubleshooting Accessing Computer Setup The information and settings in Computer Setup are accessed from the File, Security, Tools, and Advanced menus. 1. Open Computer Setup by turning on or restarting the computer. Press displayed in the lower-left corner of the screen. ❏...
Page 45: Selecting From The File Menu
4. To confirm the restoration, press 5. Select File > Save changes and exit, and then follow the instructions on the screen. When the computer restarts, the factory settings are restored, and any identification information you have entered is saved. Selecting from the File Menu Select System Information...
Page 46: Selecting From The Security Menu
System IDs 2–4 Table 2-2 Security Menu To Do This Enter, change, or delete an HP Administrator password. Enter, change, or delete a power-on password. ■ Enable/Disable stringent security. ■ Enable/Disable required password on restart. Enable/disable DriveLock; change a DriveLock user or master password.
Page 47: Selecting From The Tools Menu
Selecting from the Tools Menu Select HDD Self Test options Battery Information Memory Check Maintenance and Service Guide Table 2-3 Tools Menu To Do This Run a quick or comprehensive self-test on any hard drive in the system. View information about any battery packs in the computer.
Page 48: Selecting From The Advanced Menu
Troubleshooting Selecting from the Advanced Menu Select Language (or press f2) Boot options Device options 2–6 Table 2-4 Advanced Menu To Do This Change the Computer Setup language. ■ Enable/Disable MultiBoot, which sets a startup sequence that can include most bootable devices and media in the system.
Page 49: Troubleshooting Flowcharts
2.2 Troubleshooting Flowcharts Troubleshooting Flowcharts Overview Flowchart Description “Flowchart 2.1—Initial Troubleshooting” “Flowchart 2.2—No Power, Part 1” “Flowchart 2.3—No Power, Part 2” “Flowchart 2.4—No Power, Part 3” “Flowchart 2.5—No Power, Part 4” “Flowchart 2.6—No Video, Part 1” “Flowchart 2.7—No Video, Part 2” “Flowchart 2.8—Nonfunctioning Docking Device (if applicable)”...
Page 50 Troubleshooting Troubleshooting Flowcharts Overview (Continued) Flowchart Description 2.14 “Flowchart 2.14—No OS Loading, Optical Drive” 2.15 “Flowchart 2.15—No Audio, Part 1” 2.16 “Flowchart 2.16—No Audio, Part 2” 2.17 “Flowchart 2.17—Nonfunctioning Device” 2.18 “Flowchart 2.18—Nonfunctioning Keyboard” 2.19 “Flowchart 2.19—Nonfunctioning Pointing Device” 2.20 “Flowchart 2.20—No Network/Modem Connection”...
Page 51: Flowchart 2.1—Initial Troubleshooting
Flowchart 2.1—Initial Troubleshooting Begin troubleshooting. Is there power? Beeps, LEDs, or error messages? Is there video? (no boot) Is the OS loading? Is there sound? Maintenance and Service Guide Go to “Flowchart 2.2—No Power, Part 1.” Check LED board, speaker connections.
Page 52: Flowchart 2.2—No Power, Part
Troubleshooting Flowchart 2.2—No Power, Part 1 No power (power LED is off). Remove from docking device (if applicable). Power up on battery power? Power up on AC power? Power up in docking device? 1. Reseat the power cables in the docking device and at the AC outlet.
Page 53: Flowchart 2.3—No Power, Part
Flowchart 2.3—No Power, Part 2 Continued from “Flowchart 2.2—No Power, Part 1.” Visually check for debris in battery socket and clean if necessary. Power on? Check battery by recharging it, moving it to another computer, or replacing it. Power on? Done Maintenance and Service Guide Done...
Page 54: Flowchart 2.4—No Power, Part
Troubleshooting Flowchart 2.4—No Power, Part 3 Continued from “Flowchart 2.3—No Power, Part 2.” Plug directly into AC outlet. Power LED Reseat AC adapter in computer and at power source. Power on? Power outlet active? Replace power cord. Power on? 2–12 Done Done Internal or...
Page 55: Flowchart 2.5—No Power, Part
Flowchart 2.5—No Power, Part 4 Continued from “Flowchart 2.4—No Power, Part 3.” Open computer. Loose or damaged parts? Close computer and retest. Power on? Done Maintenance and Service Guide Reseat loose components and boards and replace damaged items. Replace the following items (if applicable). Check computer operation after each replacement: 1.
Page 56: Flowchart 2.6—No Video, Part
Troubleshooting Flowchart 2.6—No Video, Part 1 No video. Docking Device Stand-alone or docking device? Stand-alone Internal or external display*? Internal External Adjust brightness. Video OK? Replace the following one at a time. Test after each replacement. Check for bent pins on cable. Video OK? Done 2–14...
Page 57: Flowchart 2.7—No Video, Part
Flowchart 2.7—No Video, Part 2 Continued from “Flowchart 2.6—No Video, Part 1.” Remove computer from dock- ing device, if connected. Adjust display brightness. Video OK? Check that computer is properly seated in docking device, for bent pins on cable, and for monitor connection. Video OK? Adjust external monitor display.
Page 58 Troubleshooting Flowchart 2.8—Nonfunctioning Docking Device (if applicable) Nonfunctioning docking device. Reseat power cord in docking device and power outlet. Check voltage setting on docking device. Reset monitor cable connector at docking device. Docking device operating? Remove computer, replace docking device. 2–16 Reinstall computer into dock-...
Page 59: Flowchart 2.9—No Operating System (Os) Loading
Flowchart 2.9—No Operating System (OS) Loading No OS loading.* Reseat power cord in docking device and power outlet. *NOTE: Before beginning troubleshooting, always check cable connections, cable ends, and drives for bent or damaged pins. Maintenance and Service Guide No OS loading from hard drive, go to “Flowchart 2.10—No OS Loading, Hard Drive, Part 1.”...
Page 60 Troubleshooting Flowchart 2.10—No OS Loading, Hard Drive, Part 1 OS not loading from hard drive. Nonsystem disk message? Reseat external hard drive. OS loading? Boot from Check the setup utility for correct booting order. Boot from hard drive? Done 2–18 Go to “Flowchart 2.11—No OS Load-...
Page 61 Flowchart 2.11—No OS Loading, Hard Drive, Part 2 Continued from “Flowchart 2.10—No OS Loading, Hard Drive, Part 1.” 1. Replace Disc or diskette in 2. Replace drive? Remove disc or diskette and reboot. Boot from hard drive? Boot 2.13—No OS from diskette Loading, Dis- drive?
Page 62 Troubleshooting Flowchart 2.12—No OS Loading, Hard Drive, Part 3 Continued from “Flowchart 2.11—No OS Load- ing, Hard Drive, Part 2.” System files on hard drive? Virus hard drive? Run SCANDISK and check for bad sectors. Can bad sectors be fixed? Fix bad sectors.
Page 63: Flowchart 2.13—No Os Loading, Diskette Drive
Flowchart 2.13—No OS Loading, Diskette Drive OS not loading from diskette drive. Nonsystem disk message? Boot from another device? Diskette drive enabled in the Setup utility? Is diskette drive boot order cor- rect? Change boot priority using the setup utility. Maintenance and Service Guide Reseat diskette drive.
Page 64 Troubleshooting Flowchart 2.14—No OS Loading, Optical Drive No OS loading from CD-ROM or DVD-ROM drive. Boots from CD or DVD? Reseat drive. 2–22 Disc in drive? Install Try another bootable disc. bootable disc. Done Boots from CD or DVD? Booting from another 2.17—Nonfunction- device?
Page 65 Flowchart 2.15—No Audio, Part 1 No audio. Computer in docking device (if applicable)? Go to “Flowchart 2.16—No Audio, Part 2.” 2.17—Nonfunctioning Maintenance and Service Guide Turn up audio internally or externally. Undock Replace the following docking device compo- nents one at a time, as applicable. Check audio status after each change.
Page 66 Troubleshooting Flowchart 2.16—No Audio, Part 2 Continued from “Flowchart 2.15—No Audio, Part 1.” Audio driver in OS configured? Correct drivers for application? Connect to external speaker. Audio? 2–24 Reload audio drivers. Load drivers and set configuration in OS. Replace audio board and speaker connections...
Page 67 Flowchart 2.17—Nonfunctioning Device Unplug the nonfunctioning device from the computer and inspect cables and plugs for bent or broken pins Clear CMOS. Reattach device. Close computer, plug in power, and reboot. Device boots properly? Done Maintenance and Service Guide Nonfunctioning device.
Page 68 Troubleshooting Flowchart 2.18—Nonfunctioning Keyboard Keyboard not operating prop- erly. Connect computer to good external key- board. External device works? Reseat internal key- board connector (if applicable). Keyboard operating properly? Done 2–26 Replace system board. Replace internal keyboard or cable. Keyboard operating properly? Replace...
Page 69 Flowchart 2.19—Nonfunctioning Pointing Device Pointing device not operating properly. Connect computer to good external pointing device. External device works? Reseat internal pointing device connector (if applicable). Pointing device operating properly? Done Maintenance and Service Guide Replace system board. Replace internal pointing device or cable.
Page 70 Troubleshooting Flowchart 2.20—No Network/Modem Connection No network or modem connec- tion. Network or modem jack or have jack acti- active? Digital line? NIC/modem drivers and recon- configured in OS? Disconnect all power from the computer and open. Reseat NIC/modem (if applicable). 2–28 Replace jack vated.
Page 71: Illustrated Parts Catalog
Reference is made throughout this chapter to “Best Buy 1” and “Best Buy 2” computer models. These references apply to HP Pavilion dv1400 models that are sold in Best Buy retail stores that use plastic components with different colors. 3.1 Serial Number Location...
Page 72: Computer Major Components
Illustrated Parts Catalog 3.2 Computer Major Components Computer Major Components, HP Pavilion dv1400 3–2 Maintenance and Service Guide...
Page 73 14.0-inch, WXGA, SVA with Brightview Left and right display hinge covers and brackets For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models For use on HP Pavilion dv1400 models Maintenance and Service Guide...
Page 74 Illustrated Parts Catalog Computer Major Components, HP Compaq nx4820 and Compaq Presario V2400 3–4 Maintenance and Service Guide...
Page 75 Spare Parts: Computer Major Components (Continued) Item Description Switch covers (include wireless button and light) For use on HP Pavilion dv1400 models with wireless capability For use on HP Pavilion dv1400 models without wireless capability For use on HP Compaq nx4820 and...
Page 76 Illustrated Parts Catalog Computer Major Components, HP Pavilion dv1400 3–6 Maintenance and Service Guide...
Page 77 Greece Israel International Italy Korea Latin America Europe and the Netherlands Norway Portugal For use on HP Compaq nx4820 models Japan For use on Compaq Presario V2400 models Korea Taiwan Thailand Maintenance and Service Guide Table 3-1 367778-A41 Saudi Arabia...
Page 78 Illustrated Parts Catalog Computer Major Components, HP Compaq nx4820 and Compaq Presario V2400 3–8 Maintenance and Service Guide...
Page 79 Item Description LED boards (include cable, not illustrated) For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models Top covers (include TouchPad) For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 models...
Page 80 Illustrated Parts Catalog Computer Major Components, HP Pavilion dv1400 3–10 Maintenance and Service Guide...
Page 81 915GM, for use on full-featured HP Pavilion dv1400 models 910GM, for use on defeatured HP Pavilion dv1400 models 915GM, for use on full-featured HP Compaq nx4820 and Compaq Presario V2400 models 910GM, for use on defeatured HP Compaq nx4820 and Compaq Presario V2400 models...
Page 82 Illustrated Parts Catalog Computer Major Components, HP Compaq nx4820 and Compaq Presario V2400 3–12 Maintenance and Service Guide...
Page 83 Spare Parts: Computer Major Components (Continued) Item Description Speaker assemblies For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models Base enclosures For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and...
Page 84 Illustrated Parts Catalog Computer Major Components, HP Pavilion dv1400 3–14 Maintenance and Service Guide...
Page 85 8X DVD±RW/R and CD-RW Double Layer Combo Drive 8X DVD±RW/R and CD-RW Double Layer Combo Drive, LightScribe For use on HP Compaq nx4820 and Compaq Presario V2400 models 8X DVD±RW/R and CD-RW Double Layer Combo Drive 8X DVD±RW/R and CD-RW Double Layer...
Page 86 Illustrated Parts Catalog Computer Major Components, HP Compaq nx4820 and Compaq Presario V2400 3–16 Maintenance and Service Guide...
Page 87 802.11b/g Broadcomm (for use in most of the world) 802.11b/g Broadcomm (for use in the rest of the world) 802.11b/g Broadcomm (for use on HP Compaq nx4820 models in Japan) 802.11b/g FRVL (for use in most of the world) 802.11b/g FRVL (for use in the rest of the world) 802.11b/g Intel (for use in most of the world)
Page 88 Illustrated Parts Catalog Computer Major Components, HP Pavilion dv1400 3–18 Maintenance and Service Guide...
Page 89 SC Card memory modules (not illustrated) 256-MB 128-MB Miscellaneous Plastics Kit For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models For use on Best Buy 1 models For use on Best Buy 2 models Includes:...
Page 90: Miscellaneous Plastics Kit
Illustrated Parts Catalog 3.3 Miscellaneous Plastics Kit Miscellaneous Plastics Kit 3–20 Maintenance and Service Guide...
Page 91 For use on HP Pavilion dv1400 models Includes: Mini PCI compartment cover Memory module compartment cover Computer feet (5) Hard drive cover For use on HP Compaq nx4820 and Compaq Presario V2400 models Includes: Mini PCI compartment cover Memory module compartment cover Computer feet (4)
Page 92: Mass Storage Devices
Illustrated Parts Catalog 3.4 Mass Storage Devices Mass Storage Devices Spare Part Number Information Item Description Hard drives (include frame and connector) 5400-rpm 80-GB 60-GB 40-GB 3–22 Table 3-3 Mass Storage Devices Spare Part Number 377651-001 375980-001 393659-001 Maintenance and Service Guide...
Page 93 8X DVD±RW/R and CD-RW Double Layer Combo Drive 8X DVD±RW/R and CD-RW Double Layer Combo Drive, LightScribe For use on HP Compaq nx4820 and Compaq Presario V2400 models 8X DVD±RW/R and CD-RW Double Layer Combo Drive 8X DVD±RW/R and CD-RW Double Layer...
Page 94 Illustrated Parts Catalog Spare Part Number Information (Continued) Item Description HP USB pocket drive (not illustrated) 3–24 Table 3-3 Mass Storage Devices Spare Part Number 338796-001 Maintenance and Service Guide...
Page 95: Miscellaneous
For use on HP Compaq nx4820 models For use on Compaq Presario V2400 models Wired headset with volume control HP backpack HP remote control (for use on HP dv1400 models) USB travel mouse Notebook entertainment cable and Y-cable 65-watt AC adapter Screw Kit (includes the following screws;...
Page 96 Illustrated Parts Catalog Miscellaneous (not illustrated) Spare Part Information (Continued) Description Power cords For use in: Australia and New Zealand Brazil Belgium, Europe, Finland, France, Germany, Greece, the Netherlands, Norway, Portugal, Spain, and Sweden Canada, French Canada, Latin America, Thailand, and the United States Denmark Hong Kong and the United Kingdom...
Page 97: Sequential Part Number Listing
Compaq Presario V2400 models 367765-001 Miscellaneous Plastics Kit for use on HP Pavilion dv1400 models 367766-001 Miscellaneous Plastics Kit for use on HP Compaq nx4820 and Compaq Presario V2400 models 367773-001 Memory module, 256-MB (266 MHz) 367774-001 Memory module, 512-MB (266 MHz)
Page 98 367777-AD1 Keyboard for use on Compaq Presario V2400 models in Korea 367778-001 Keyboard for use on HP Pavilion dv1400 models in Asia Pacific, Australia, Canada, Hong Kong, People’s Republic of China, and the United States 367778-031 Keyboard for use on HP Pavilion dv1400 models in...
Page 99 Sequential Spare Part Number Listing (Continued) Spare Part Number Description 367778-A41 Keyboard for use on HP Pavilion dv1400 models in Belgium 367778-AB1 Keyboard for use on HP Pavilion dv1400 models in Taiwan 367778-AD1 Keyboard for use on HP Pavilion dv1400 models in Korea...
Page 100 Sequential Spare Part Number Listing (Continued) Spare Part Number Description 367789-001 8X DVD-ROM Drive for use on HP Pavilion dv1400 models 367790-001 24X DVD/CD-RW Combo Drive for use on HP Pavilion dv1400 models 367793-001 Speaker assembly for use on HP Pavilion dv1400 models...
Page 101 373061-291 Mini PCI communications card, 802.11b/g Broadcomm for use in Japan 373524-001 8X DVD-ROM Drive for use on HP Compaq nx4820 and Compaq Presario V2400 models 373525-001 24X DVD/CD-RW Combo Drive for use on HP Compaq nx4820 and Compaq Presario V2400 models 373528-001 Display assembly, 14.0-inch, WXGA, SVA for use on...
Page 102 373979-BB1 Power cord for use in Israel 373979-DJ1 Power cord for use in India 374625-001 Speaker assembly for use on HP Compaq nx4820 and Compaq Presario V2400 models 375759-001 Notebook entertainment cable and Y-cable 375980-001 Hard drive, 60-GB, 5400-rpm (includes frame and connector)
Page 103 Sequential Spare Part Number Listing (Continued) Spare Part Number Description 389897-001 8X DVD±RW/R and CD-RW Combo Drive, Double Layer for use on HP Compaq nx4820 and Compaq Presario V2400 models 390622-001 Mini-PCI communications card, 802.11b/g FRVL for use in the United States 390622-002 Mini-PCI communications card, 802.11b/g FRVL for use in the...
Page 104 (includes TouchPad) 394906-001 Top cover for use on full-featured Compaq Presario V2400 models 395135-001 915GM, for use on full-featured HP Compaq nx4820 and Compaq Presario V2400 models 395199-001 Label Kit for use on HP Compaq nx4820 models 395436-001 Heat sink (includes thermal pad) 396602-001 6-cell, 4.0-Amp hour battery pack...
Page 105 Left and right display hinge covers and brackets for use on HP Pavilion dv1400 models 405527-001 HP backpack 406031-001 Top cover for use on HP Compaq nx4820 models 407315-001 Processor, Intel Pentium M 735a (1.7-GHz) with 400-MHz FSB (includes thermal pad) 409218-001 Display assembly, 14.0-inch, WXGA, SVA with Brightview for...
Page 106: Removal And Replacement Preliminaries
Removal and Replacement This chapter provides essential information for proper and safe removal and replacement service. 4.1 Tools Required You will need the following tools to complete the removal and replacement procedures: ■ Magnetic screwdriver ■ Phillips P0 screwdriver ■ Flat-bladed screwdriver ■...
Page 107: Service Considerations
Removal and Replacement Preliminaries 4.2 Service Considerations The following sections include some of the considerations that you should keep in mind during disassembly and assembly procedures. ✎ As you remove each subassembly from the computer, place the subassembly (and all accompanying s) away from the work area to prevent damage.
Page 108: Preventing Damage To Removable Drives
4.3 Preventing Damage to Removable Drives Removable drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a removable drive, or loss of information, observe the following precautions: ■ Before removing or inserting a hard drive, shut down the computer.
Page 109: Preventing Electrostatic Damage
Removal and Replacement Preliminaries 4.4 Preventing Electrostatic Damage Many electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.
Page 110: Packaging And Transporting Precautions
4.5 Packaging and Transporting Precautions Use the following grounding precautions when packaging and transporting equipment: ■ To avoid hand contact, transport products in static-safe containers, such as tubes, bags, or boxes. ■ Protect all electrostatic-sensitive parts and assemblies with conductive or approved containers or packaging. ■...
Page 111: Workstation Precautions
Removal and Replacement Preliminaries 4.6 Workstation Precautions Use the following grounding precautions at workstations: ■ Cover the workstation with approved static-shielding material (refer to ■ Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. ■...
Page 112 Other grounding equipment recommended for use in preventing electrostatic damage includes: ■ Antistatic tape ■ Antistatic smocks, aprons, and sleeve protectors ■ Conductive bins and other assembly or soldering aids ■ Nonconductive foam ■ Conductive tabletop workstations with ground cords of one megohm resistance ■...
Page 113: Typical Electrostatic Voltage Levels
Removal and Replacement Preliminaries Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities. Typical Electrostatic Voltage Levels Event Walking across carpet Walking across vinyl floor Motions of bench worker Removing DIPS from plastic tube Removing DIPS from vinyl tray Removing DIPS from Styrofoam Removing bubble pack from PCB Packing PCBs in foam-lined box...
Page 114: Removal And Replacement Procedures
Reference is made throughout this chapter to “Best Buy 1” and “Best Buy 2” computer models. These references apply to HP Pavilion dv1400 models that are sold in Best Buy retail stores that use plastic components with different colors. Maintenance and Service Guide...
Page 115: Serial Number
Removal and Replacement Procedures 5.1 Serial Number Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the computer. Serial Number Location 5–2 Maintenance and Service Guide...
Page 116: Disassembly Sequence Chart
4 removed to disassemble the hard drive 2 loosened 1 loosened HP Pavilion dv1400 = 3 HP Compaq nx4820 and Compaq Presario V2400 = 2 HP Pavilion dv1400 = 2 HP Compaq nx4820 and Compaq Presario V2400 = 4...
Page 117 5.21 System Board 5.22 LED Board 5–4 # of Screws Removed HP Pavilion dv1400 = 20 HP Compaq nx4820 and Compaq Presario V2400 = 18 HP Pavilion dv1400 = 3 HP Compaq nx4820 and Compaq Presario V2400 = 2 Maintenance and Service Guide...
Page 118: Preparing The Computer For Disassembly
5.3 Preparing the Computer for Disassembly Before you begin any removal or installation procedures: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2.
Page 119 Removal and Replacement Procedures b. Slide and hold the battery release latch 1 to the left. (The front edge of the battery pack disengages from the computer.) c. Lift the front edge of the battery pack 2 up and swing it back.
Page 120: Hard Drive
5.4 Hard Drive Hard Drive Spare Part Number Information Frame and connector included. 5400-rpm 80-GB 60-GB 40-GB 4200-rpm 100-GB 80-GB 60-GB 40-GB 1. Prepare the computer for disassembly (refer to Maintenance and Service Guide Removal and Replacement Procedures 377651-001 375980-001 393659-001 381721-001 367788-001...
Page 121 Plastics Kits, which are available using the following spare part numbers: ■ 367765-001 (for use on HP Pavilion dv1400 models) ■ 367766-001 (for use on HP Compaq nx4820 and Compaq Presario V2400 models) ■ 399236-001 (for use on Best Buy 1 models) ■...
Page 122 Removal and Replacement Procedures 5. Use the mylar tab 1 to lift the hard drive 2 until it disconnects from the computer. 6. Remove the hard drive from the hard drive bay. Removing the Hard Drive Maintenance and Service Guide 5–9...
Page 123 Removal and Replacement Procedures 7. Remove the four PM2.5×4.0 screws 1 that secure the hard drive frame to the hard drive. 8. Lift the frame 2 straight up to remove if from the hard drive. 9. Slide the hard drive connector 3 off the hard drive. Removing the Hard Drive Frame and Connector Reverse the above procedure to install and reassemble the hard drive.
Page 124: Computer Feet
Miscellaneous Plastics Kits, which are available using the following spare part numbers: ■ 367765-001 (for use on HP Pavilion dv1400 models) ■ 367766-001 (for use on HP Compaq nx4820 and Compaq Presario V2400 models) ■ 399236-001 (for use on Best Buy 1 models) ■...
Page 125: Memory Module
Removal and Replacement Procedures 5.6 Memory Module Memory Module Spare Part Number Information 1024-MB 512-MB 256-MB 1. Prepare the computer for disassembly (refer to 5–12 367775-001 367774-001 367773-001 Section Maintenance and Service Guide 5.3).
Page 126 Miscellaneous Plastics Kits, which are available using the following spare part numbers: ■ 367765-001 (for use on HP Pavilion dv1400 models) ■ 367766-001 (for use on HP Compaq nx4820 and Compaq Presario V2400 models) ■ 399236-001 (for use on Best Buy 1 models) ■...
Page 127 Removal and Replacement Procedures 5. Spread the retaining tabs 1 on each side of the memory module socket to release the memory module. (The right side of the module rises away from the computer.) 6. Slide the module 2 away from the socket at an angle. ✎...
Page 128: Mini Pci Communications Module
Spare Part Number Information 802.11b/g Broadcomm (for use in most of the world) 802.11b/g Broadcomm (for use in the rest of the world) 802.11b/g Broadcomm (for use on HP Compaq nx4820 models in Japan) 802.11b/g FRVL (for use in most of the world) 802.11b/g FRVL (for use in the rest of the world)
Page 129 Miscellaneous Plastics Kits, which are available using the following spare part numbers: ■ 367765-001 (for use on HP Pavilion dv1400 models) ■ 367766-001 (for use on HP Compaq nx4820 and Compaq Presario V2400 models) ■ 399236-001 (for use on Best Buy 1 models) ■...
Page 130 ✎ Make note of which wireless antenna cable is attached to which antenna clip on the Mini PCI communications module before disconnecting the cables. 5. Disconnect the wireless antenna cables 1 from the Mini PCI communications card. 6. Spread the two retaining tabs 2 that secure the Mini PCI communications module to the communications compartment socket.
Page 131: Optical Drive
8X DVD±RW/R and CD-RW Double Layer Combo Drive 8X DVD±RW/R and CD-RW Double Layer Combo Drive, LightScribe For use on HP Compaq nx4820 and Compaq Presario V2400 models 8X DVD±RW/R and CD-RW Double Layer Combo Drive 8X DVD±RW/R and CD-RW Double Layer Combo Drive,...
Page 132 2. Remove the PM2.0×8.5 screw 1 that secures the optical drive to the computer. 3. Insert a thin tool, such as a paper clip, into the media tray release hole 2. (The optical drive media tray releases from the optical drive.) 4.
Page 133: Switch Cover
For use on HP Pavilion dv1400 models without wireless capability For use on HP Compaq nx4820 and Compaq Presario V2400 models with a 1394 port, S-Video-out jack, expansion port, digital memory card reader, with wireless capability For use on HP Compaq nx4820 and Compaq Presario...
Page 134 2. Position the computer with the rear panel toward you. ✎ Steps 3 through 9 apply only to HP Pavilion dv1400 models. See steps 10 through 14 in this section for information on removing the switch cover on HP Compaq nx4820 and Compaq Presario V2400 models.
Page 135 6. Insert a flat-blade screwdriver under the outside edges of the display hinge covers. 7. Lift up on the outside edges of the hinge covers 1 until the switch cover 2 disengages from the computer. Releasing the Switch Cover, HP Pavilion dv1400 Models Only 5–22 Maintenance and Service Guide...
Page 136 Removal and Replacement Procedures 8. Swing the rear edge of the switch cover forward. Removing the Switch Cover, HP Pavilion dv1400 Models Only 9. Remove the switch cover. Maintenance and Service Guide 5–23...
Page 137 Removal and Replacement Procedures ✎ Steps 10 through 14 apply only to HP Compaq nx4820 and Compaq Presario V2400 models. 10. Remove the two silver PM2.0×5.0 screws that secure the switch cover to the computer. Removing the Switch Cover Screws, HP Compaq nx4820 and Compaq Presario V2400 Models Only 5–24...
Page 138 F1, F5, F11, of the switch cover 2 until it disengages from the computer. 14. Remove the switch cover. Removing the Switch Cover, HP Compaq nx4820 and Compaq Presario V2400 Models Only Reverse the above procedure to install the switch cover.
Page 139: Keyboard
Greece International Israel Italy Korea Latin America Europe and the Netherlands For use on HP Compaq nx4820 models Japan For use on Compaq Presario V2400 models Korea Taiwan Thailand 1. Prepare the computer for disassembly 2. Remove the optical drive 3.
Page 140 Removal and Replacement Procedures ✎ Steps 6 through 11 apply only to HP Pavilion dv1400 models. See steps 12 through 15 in this section for information on removing the keyboard on HP Compaq nx4820 and Compaq Presario V2400 models. 6. Remove the two silver PM2.0×5.0 screws that secure the keyboard to the computer.
Page 141 8. Open the computer as far as possible. 9. Lift the rear edge of the keyboard and swing it forward until it rests on the palm rest. Releasing the Keyboard, HP Pavilion dv1400 Models Only 5–28 Maintenance and Service Guide...
Page 142 10. 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, HP Pavilion dv1400 Models Only 11. Remove the keyboard. Maintenance and Service Guide Removal and Replacement Procedures 5–29...
Page 143 Removal and Replacement Procedures ✎ Steps 12 through 15 apply only to HP Compaq nx4820 and Compaq Presario V2400 models. 12. Remove the four PM2.0×3.0 screws 1 that secure the keyboard to the computer. 13. Swing the rear edge of the keyboard 2 up and forward until it rests on the palm rest.
Page 144 14. Release the ZIF connector 1 to which the keyboard cable is connected and disconnect the keyboard cable 2 from the system board. Disconnecting the Keyboard Cable, HP Compaq nx4820 and Compaq Presario V2400 Models Only 15. Remove the keyboard.
Page 145: Display Assembly
14.0-inch, WXGA, SVA with Brightview Left and right display hinge covers and brackets For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models For use on HP Pavilion dv1400 models 1. Prepare the computer for disassembly 2.
Page 146 3. Disconnect the wireless antenna cables from the Mini PCI communications card. Disconnecting the Wireless Antenna Cables 4. Remove the wireless antenna cables from the Mini PCI and memory module compartments. 5. Remove the switch cover 6. Remove the keyboard 7.
Page 147 Removal and Replacement Procedures 9. Disconnect the display cable 1 from the system board. 10. Remove the tape 2 that secures the wireless antenna cables to the top cover. 11. Remove the cables from the clips 3 in the top cover. Disconnecting the Display Cable and Removing the Wireless Antenna Cables 5–34...
Page 148 ✎ Steps 12 and 13 apply only to HP Pavilion dv1400 models. See steps 14 and 15 in this section for information on removing the display assembly on HP Compaq nx4820 and Compaq Presario V2400 models. Ä CAUTION: Support the display assembly when removing the following screws.
Page 149 Removal and Replacement Procedures ✎ Steps 14 and 15 apply only to HP Compaq nx4820 and Compaq Presario V2400 models. Ä CAUTION: Support the display assembly when removing the following screws. Failure to support the display assembly can result in damage to the display assembly and other computer components.
Page 150: Base Enclosure
5.12 Base Enclosure Base Enclosure Spare Part Number Information For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models For use on Best Buy 1 models For use on Best Buy 2 models 1.
Page 151 Removal and Replacement Procedures ✎ Steps 2 through 8 apply only to HP Pavilion dv1400 models. See steps 9 through 11 in this section for information on removing the base enclosure on HP Compaq nx4820 and Compaq Presario V2400 models.
Page 152 3. Turn the computer upside down with the front toward you. 4. Remove the fourteen PM2.0×8.5 screws that secure the base enclosure to the computer. Removing the Base Enclosure Screws, Part 2, HP Pavilion dv1400 models Only Maintenance and Service Guide Removal and Replacement Procedures 5–39...
Page 153 Removal and Replacement Procedures 5. Remove the four silver PM2.0×5.0 screws that secure the base enclosure to the computer. Removing the Base Enclosure Screws, Part 3, HP Pavilion dv1400 models Only 5–40 Maintenance and Service Guide...
Page 154 6. Swing the rear edge 1 of the base enclosure straight up and forward until it rests at an angle. 7. Slide the base enclosure 2 back at an angle. 8. Remove the base enclosure. Removing the Base Enclosure, HP Pavilion dv1400 models Only Maintenance and Service Guide 5–41...
Page 155 Removal and Replacement Procedures ✎ Steps 9 through 11 apply only to HP Compaq nx4820 and Compaq Presario V2400 models. 9. Remove the fifteen PM2.0×8.5 screws that secure the base enclosure to the computer. Removing the Base Enclosure Screws, HP Compaq nx4820 and Compaq Presario V2400 Models Only 5–42...
Page 156 10. Remove the five silver PM2.0×5.0 screws that secure the base enclosure to the computer. 11. Lift the base enclosure straight up and remove it. Removing the Base Enclosure, HP Compaq nx4820 and Compaq Presario V2400 Models Only Reverse the above procedure to install the base enclosure.
Page 157: Usb/S-Video Controller Board
Removal and Replacement Procedures 5.13 USB/S-Video Controller Board USB/S-Video Controller Board Spare Part Number Information USB/S-Video Controller Board 1. Prepare the computer for disassembly and remove the following components: ❏ Optical drive ❏ Switch cover ❏ Keyboard ❏ Display assembly ❏...
Page 158 2. Remove the two silver PM2.0×5.0 screws 1 that secure the USB/S-Video controller board to the top cover. 3. Lift up on the right side of the board 2 to disconnect it from the system board. 4. Remove the USB/S-Video controller board. Removing the USB/S-Video Controller Board Reverse the above procedure to install the USB/S-Video controller board.
Page 159: Bluetooth Module
Removal and Replacement Procedures 5.14 Bluetooth Module Bluetooth Module Spare Part Number Information Bluetooth module 1. Prepare the computer for disassembly and remove the following components: ❏ Optical drive ❏ Switch cover ❏ Keyboard ❏ Display assembly ❏ Base enclosure ❏...
Page 160 2. Turn the USB/S-Video controller board upside down with the USB port facing you. 3. Remove the two PM1.5×3.5 screws 1 that secure the Bluetooth module to the USB/S-Video controller board. 4. Disconnect the Bluetooth module cable 2 from the USB/S-Video controller board.
Page 161: Speaker Assembly
Removal and Replacement Procedures 5.15 Speaker Assembly Speaker Assembly Spare Part Number Information For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models 1. Prepare the computer for disassembly and remove the following components: ❏...
Page 162 2. Disconnect the speaker cable 1 from the system board. 3. Lift the speaker 2 straight up to remove it from the top cover. Removing the Speaker Assembly Reverse the above procedure to install the speaker assembly. Maintenance and Service Guide Removal and Replacement Procedures 5–49...
Page 163: Rtc Battery
Removal and Replacement Procedures 5.16 RTC Battery ✎ The RTC battery is included with the system board. Refer to Section 5.21, “System Board,” 1. Prepare the computer for disassembly and remove the following components: ❏ Optical drive ❏ Switch cover ❏...
Page 164 Removal and Replacement Procedures 2. Remove the RTC battery from the socket on the system board. Removing the RTC Battery Reverse the above procedure to install the RTC battery. Make sure the RTC battery is installed with the “+” sign facing up. Maintenance and Service Guide 5–51...
Page 165: Menu Control Button Board
Removal and Replacement Procedures 5.17 Menu Control Button Board ✎ This section applies only to HP Pavilion dv1400 models. Menu Control Button Board Spare Part Number Information Menu control button board (includes bracket and cable, for use only on HP Pavilion dv1400 models) 1.
Page 166 3. Remove the tape 1 that secures the menu control button board cable to the system board. 4. Release the ZIF connector 2 to which the menu control button board cable is connected and disconnect the cable 3. Disconnecting the Menu Control Button Board Cable Maintenance and Service Guide Removal and Replacement Procedures 5–53...
Page 167 Removal and Replacement Procedures 5. Remove the four PM2.0×3.0 screws 1 that secure the menu control button board and shield to the top cover. 6. Remove the menu control button board shield 2 and board 3. Removing the Menu Control Button Board and Shield Reverse the above procedure to install the menu control button board and shield.
Page 168: Heat Sink
5.18 Heat Sink Heat Sink Spare Part Number Information Heat sink (includes thermal pad) 1. Prepare the computer for disassembly and remove the following components: ❏ Optical drive ❏ Switch cover ❏ Keyboard ❏ Display assembly ❏ Base enclosure 2. Turn the computer upside down with the front toward you. Maintenance and Service Guide Removal and Replacement Procedures (Section...
Page 169 Removal and Replacement Procedures 3. Disconnect the fan cable 1 from the system board. 4. Remove the three silver PM2.0×5.0 screws 2 that secure the heat sink to the top cover. 5. Remove the heat sink 3. Removing the Heat Sink Reverse the above procedure to install the heat sink.
Page 170: Fan
5.19 Fan Fan Spare Part Number Information Fan (includes thermal pad) 1. Prepare the computer for disassembly and remove the following components: ❏ Optical drive ❏ Switch cover ❏ Keyboard ❏ Display assembly ❏ Base enclosure ❏ Heat sink 2. Turn the heat sink upside down with the front toward you. Maintenance and Service Guide Removal and Replacement Procedures (Section...
Page 171 Removal and Replacement Procedures 3. Remove the two silver PM2.0×5.0 screws 1 that secure the fan to the heat sink. 4. Remove the fan 2. Removing the Fan Reverse the above procedure to install the fan. 5–58 Maintenance and Service Guide...
Page 172: Processor
5.20 Processor Processor Spare Part Number Information Intel Pentium M 770 (2.13-GHz) with 400-MHz FSB Intel Pentium M 760 (2.0-GHz) with 400-MHz FSB Intel Pentium M 750 (1.8-GHz) with 400-MHz FSB Intel Pentium M 740 (1.7-GHz) with 400-MHz FSB Intel Pentium M 735a (1.7-GHz) with 400-MHz FSB Intel Pentium M 730 (1.6-GHz) with 400-MHz FSB Intel Pentium M 725 (1.6-GHz) with 400-MHz FSB Intel Celeron M 380 (1.6-GHz) with 400-MHz FSB...
Page 173 Removal and Replacement Procedures 2. Turn the processor locking screw 1 ¼-turn counterclockwise until you feel a click. 3. Lift the processor 2 straight up and remove it. ✎ The gold triangle 3 on the processor should be aligned in the front right corner when you install the processor.
Page 174: System Board
915GM, for use on full-featured HP Pavilion dv1400 models 910GM, for use on defeatured HP Pavilion dv1400 models 915GM, for use on full-featured HP Compaq nx4820 and Compaq Presario V2400 models 910GM, for use on defeatured HP Compaq nx4820 and Compaq Presario V2400 models ✎...
Page 175 Removal and Replacement Procedures 1. Prepare the computer for disassembly remove the following components: ❏ Hard drive ❏ Optical drive ❏ Switch cover ❏ Keyboard ❏ Display assembly ❏ Base enclosoure ❏ USB/S-Video controller board ❏ Speaker assembly 2. Turn the top cover right-side up with the front toward you. 3.
Page 176 4. Turn the top cover upside down with the front toward you. ✎ Steps 5 and 6 apply only to HP Pavilion dv1400 models. See steps 7 and 8 in this section for information on removing the system board on HP Compaq nx4820 and Compaq Presario V2400 models.
Page 177 Removal and Replacement Procedures ✎ Steps 7 and 8 apply only to HP Compaq nx4820 and Compaq Presario V2400 models. 7. Release the ZIF connector 1 to which the LED board cable is connected and disconnect the cable 2 from the system board.
Page 178 Removal and Replacement Procedures 9. Flex and hold the left edge of the top cover 1 to the left. 10. Lift the left side of the system board 2 until the USB 3 and 1394 connectors 4 are clear. Releasing the System Board, Part 1 Maintenance and Service Guide 5–65...
Page 179 Removal and Replacement Procedures 11. Flex and hold the front edge of the top cover 1 forward. 12. Lift the front of the system board 2 until the audio connectors 3 are clear. Releasing the System Board, Part 2 5–66 Maintenance and Service Guide...
Page 180 Removal and Replacement Procedures 13. Slide the system board to the left at an angle and remove it from the top cover. Removing the System Board Reverse the above procedure to install the system board. Maintenance and Service Guide 5–67...
Page 181: Led Board
Removal and Replacement Procedures 5.22 LED Board LED Board Spare Part Number Information For use on HP Pavilion dv1400 models For use on HP Compaq nx4820 and Compaq Presario V2400 models 1. Prepare the computer for disassembly remove the following components: ❏...
Page 182 ✎ Steps 3 and 4 apply only to HP Pavilion dv1400 models. See steps 5 and 6 in this section for information on removing the LED board on HP Compaq nx4820 and Compaq Presario V2400 models. 3. Release the ZIF connector 1 to which the LED board cable is connected and disconnect the cable 2 from the system board.
Page 183 Removal and Replacement Procedures ✎ Steps 5 and 6 apply only to HP Compaq nx4820 and Compaq Presario V2400 models. 5. Release the ZIF connector 1 to which the LED board cable is connected and disconnect the cable 2 from the system board.
Page 184 This chapter provides physical and performance specifications. Dimensions HP Pavilion dv1400 Height (varies from front to back) Width Depth HP Compaq nx4820 and Compaq Presario V2400 Height (varies from front to back) Width Depth Weight (varies by configuration) HP Pavilion dv1400...
Page 185 Operating Nonoperating ✎ Applicable product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. * For HP Compaq nx4820 only: Operating (not writing to optical disc) Operating (writing to optical disc) Nonoperating 6–2...
Page 186 14.0-inch, WXGA, SVA Display Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle Maintenance and Service Guide Table 6-2 27.94 cm 20.83 cm 35.56 cm Up to 16.8 million 250:1 180 nits typical 0.279 ×...
Page 187: Hard Drives
Specifications Dimensions Height Width Weight Interface type Transfer rate Synchronous (maximum) Security Seek times (typical read, including setting) Single track Average Maximum † Logical blocks Disk rotational speed Operating temperature ✎ Certain restrictions and exclusions apply. Consult Customer Care for details. *1 GB = 1 billion bytes when referring to hard drive storage capacity.
Page 188 Primary 6-cell, Li-Ion Battery Pack Dimensions Height Width Depth Weight Energy Voltage Amp-hour capacity Watt-hour capacity Temperature Operating Nonoperating Maintenance and Service Guide Table 6-4 2.00 cm 9.40 cm 13.40 cm 0.34 kg 11.1 V 4.4 Ah 48 Wh 5°C to 45°C 0°C to 60°C Specifications 0.79 in...
Page 189 Specifications DVD±RW/R and CD-RW Double Layer Combo Drive Applicable disk Center hole diameter Disk diameter Standard disc Mini disc 6–6 Table 6-5 Read: DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2)
Page 190 DVD±RW/R and CD-RW Double Layer Combo Drive Disk thickness Track pitch Access time Random Full stroke Audio output level Cache buffer Data transfer rate CD-R (16X) CD-RW (8X) CD-ROM (24X) DVD (8X) DVD-R (4X) DVD-RW (2X) Multiword DMA mode 2 Startup time Stop time Maintenance and Service Guide...
Page 191 Specifications Applicable disk Center hole diameter Disk diameter Standard disc Mini disc 6–8 Table 6-6 DVD/CD-RW Combo Drive Read: DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R, CD-RW...
Page 192 DVD/CD-RW Combo Drive (Continued) Disk thickness Track pitch Access time Random Full stroke Audio output level Cache buffer Data transfer rate CD-R (24X) CD-RW (10X) CD-ROM (24X) DVD (8X) Multiword DMA mode 2 Startup time Stop time Maintenance and Service Guide Table 6-6 1.2 mm (0.047 in) 0.74 µm...
Page 193 Specifications Applicable disk Center hole diameter Disk diameter Standard disc Mini disc Disk thickness 6–10 Table 6-7 DVD-ROM Drive DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18) CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R CD-RW...
Page 194 DVD-ROM Drive (Continued) Track pitch Access time Random Full stroke Audio output level Cache buffer Data transfer rate CD-R (24X) CD-RW (10X) CD-ROM (24X) DVD (8X) Multiword DMA mode 2 Startup time Stop time Maintenance and Service Guide Table 6-7 0.74 µm CD media <...
Page 195: System Dma
Specifications Hardware DMA DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 6–12 Table 6-8 System DMA System Function Not applicable Not applicable Not applicable Not applicable Direct memory access controller Available for PC Card Not assigned Not assigned Maintenance and Service Guide...
Page 196: System Interrupts
Hardware IRQ IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5* IRQ6 IRQ7* IRQ8 IRQ9* IRQ10* IRQ11 *Default configuration ✎ PC Card may assert IRQ3, IRQ4, IRQ5, IRQ7, or IRQ20. Maintenance and Service Guide Table 6-9 System Interrupts System Function System timer Quick Launch buttons Cascaded USB2 Enhanced Host Controller—24CD COM1...
Page 197 Specifications System Interrupts (Continued) Hardware IRQ IRQ12 IRQ13 IRQ14 IRQ15 IRQ17 IRQ17 IRQ17 IRQ19 IRQ19 IRQ19 IRQ20 IRQ20 IRQ21 IRQ21 IRQ21 IRQ22 IRQ23 *Default configuration ✎ PC Card may assert IRQ3, IRQ4, IRQ5, IRQ7, or IRQ20. 6–14 Table 6-9 System Function Synaptics PS/2 port pointing device Numeric data processor Primary IDE channel...
Page 198 I/O Address (hex) 0x00000000-0x00000CF7 0x00000000-0x00000CF7 0x00000020-0x00000021 0x0000002E-0x0000002F 0x00000040-0x00000043 0x00000060-0x00000060 0x00000061-0x00000061 0x00000062-0x00000062 0x00000064-0x00000064 0x00000066-0x00000066 0x00000070-0x00000071 0x00000072-0x00000073 0x00000080-0x0000008F 0x00000092-0x00000092 0x000000A0-0x000000A1 0x000000B0-0x000000B1 0x000000C0-0x000000DF 0x000000F0-0x000000FE 0x00000170-0x00000177 Maintenance and Service Guide Table 6-10 System I/O Addresses System Function (shipping configuration) PCI bus Direct memory access controller Programmable interrupt controller System board resources System timer...
Page 199 Specifications System I/O Addresses (Continued) I/O Address (hex) 0x000001F0-0x000001F7 0x00000220-0x0000022F 0x00000274-0x00000277 0x00000279-0x00000279 0x00000280-0x00000293 0x00000376-0x00000376 0x000003B0-0x000003BB 0x000003B0-0x000003BB 0x000003C0-0x000003DF 0x000003C0-0x000003DF 0x000003F6-0x000003F6 0x0000040B-0x0000040B 0x000004D0-0x000004D1 0x000004D6-0x000004D6 0x00000530-0x00000537 0x00000870-0x0000087F 0x00000A79-0x00000A79 0x00000C00-0x00000C01 0x00000C14-0x00000C14 0x00000C50-0x00000C52 0x00000C6C-0x00000C6C 6–16 Table 6-10 System Function (shipping configuration) Primary IDE Channel System board resources ISAPNP Read Data Port ISAPNP Read Data Port System board resources...
Page 200 System I/O Addresses (Continued) I/O Address (hex) 0x00000C6F-0x00000C6F 0x00000CD4-0x00000CD5 0x00000CD6-0x00000CD7 0x00000CD8-0x00000CDF 0x00000D00-0x0000FFFF 0x00000F40-0x00000F47 0x00001080-0x00001080 0x00008000-0x0000805F 0x00008100-0x000081FF 0x00008400-0x0000840F 0x00008410-0x0000841F 0x00009000-0x00009FFF 0x00009000-0x00009FFF 0x0000A000-0x0000A0FF 0x0000F000-0x0000FFFF 0x0000FD00-0x0000FDFF 0x0000FE00-0x0000FEFF Maintenance and Service Guide Table 6-10 System Function (shipping configuration) System board resources System board resources System board resources System board resources PCI bus...
Page 201: System Memory Map
Specifications Memory Map Address (hex) 0xD4100000-0xD41FFFFF 0xD4100000-0xD41FFFFF 0xD8000000-0xDBFFFFFF 0xD8000000-0xDBFFFFFF 0xFAC00000-0xFEBFFFFF 0xF6C00000-0xFABFFFFF 0xD4000000-0xD4000FFF 0xD4001000-0xD4001FFF 0xD4002000-0xD4002FFF 0xD4003000-0xD40033FF 0xFFF80000-0xFFFFFFFF 0xE0000000-0xE03FFFFF 0xE0000000-0xE03FFFFF 0x0000-0x0FFF 6–18 Table 6-11 System Memory Map System Function (shipping configuration) PCI standard PCI-to-PCI bridge ATI MOBILITY RADEON Xpress 200 Series PCI standard PCI-to-PCI bridge ATI MOBILITY RADEON Xpress 200 Series PCI standard PCI-to-PCI bridge PCI standard PCI-to-PCI bridge...
Page 202 System Memory Map (Continued) Memory Map Address (hex) 0xD4208000-0xD42087FF 0xD4200000-0xD4203FFF 0xD4204000-0xD4205FFF 0xFFEFF000-0xFFEFFFFF 0xFFEFE000-0xFFEFEFFF 0xF2C00000-0xF6BFFFFF 0xD4206000-0xD4207FFF 0xD4209000-0xD42090FF 0xD4208C00-0xD4208CFF 0xD4208800-0xD42088FF Maintenance and Service Guide Table 6-11 System Function (shipping configuration) Texas Instruments OHCI Compliant IEEE 1394 Host Controller Texas Instruments OHCI Compliant IEEE 1394 Host Controller Broadcom 802.11b/g WLAN Texas Instruments PCIxx21/x515 Cardbus...
Page 203 Specifications System Memory Map (Continued) Memory Map Address (hex) 0xD4209400-0xD42094FF 0xD4003400-0xD40034FF 0xD4003800-0xD40038FF 0xFEC00000-0xFEC00FFF 0xFEE00000-0xFEE00FFF 0xA0000-0xBFFFF 0xA0000-0xBFFFF 0xA0000-0xBFFFF 0xD6000-0xD7FFF 0xDC000-0xDDFFF 0xDD000-0xDDFFF 0xE0000-0xFFFFF 0x40000000-0xFFFFFFFF 6–20 Table 6-11 System Function (shipping configuration) Realtek RTL8139/810x Family Fast Ethernet Conexant AC-Link Audio SoftV90 Data Fax Modem with SmartCP System board resources System board resources PCI bus...
Page 204: Connector Pin Assignments
Connector Pin Assignments Signal +5 VDC Data – Maintenance and Service Guide Table A-1 Universal Serial Bus Signal Data + Ground A–1...
Page 205 Connector Pin Assignments Signal Transmit + Transmit – Receive + Unused A–2 Table A-2 RJ-45 (Network) Signal Unused Receive – Unused Unused Maintenance and Service Guide...
Page 206 Signal TV-Ground TV-CVBS TV-Ground TV-Ground Maintenance and Service Guide Connector Pin Assignments Table A-3 S-Video-Out Signal TV-CD TV-Ground TV-YD A–3...
Page 207: External Monitor
Connector Pin Assignments Signal Red analog Green analog Blue analog Not connected Ground Ground analog Ground analog Ground analog A–4 Table A-4 External Monitor Signal +5 VDC Ground Monitor detect DDC 2B data Horizontal sync Vertical sync DDC 2B clock Maintenance and Service Guide...
Page 208 Signal Unused Ring Maintenance and Service Guide Table A-5 RJ-11 (Modem) Signal Unused Unused Unused Connector Pin Assignments A–5...
Page 209 Connector Pin Assignments Signal Audio signal in Audio signal in Signal Audio out, left channel Audio out, right channel A–6 Table A-6 Audio-In (Microphone) Table A-7 Audio-Out (Headphone) Signal Ground Signal Ground Maintenance and Service Guide...
Page 210: Power Cord Set Requirements
Power Cord Set Requirements 3-Conductor Power Cord Set The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 or 220 to 240 volts AC. The power cord set included with the computer meets the requirements for use in the country where the equipment is purchased.
Page 211: General Requirements
Power Cord Set Requirements General Requirements The requirements listed below are applicable to all countries. ■ The length of the power cord set must be at least 1.5 m (5.0 ft) and a maximum of 2.0 m (6.5 ft). ■ All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country where the power cord set will be used.
Page 212 Country-Specific Requirements 3-Conductor Power Cord Set Requirements Country/Region Australia Austria Belgium Canada Denmark Finland France Germany Italy Japan ✎ NOTES: 1. The flexible cord must be <HAR> Type HO5VV-F, 3-conductor, 1.0 mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used.
Page 213 Power Cord Set Requirements 3-Conductor Power Cord Set Requirements (Continued) Country/Region Korea The Netherlands Norway People’s Republic of China Sweden Switzerland Taiwan United Kingdom United States ✎ NOTES: 1. The flexible cord must be <HAR> Type HO5VV-F, 3-conductor, 1.0 mm² conductor size.
Page 214: Screw Listing
All screws listed in this appendix are available in the Miscellaneous Screw Kits, spare part numbers 367776-001 (for use on HP Pavilion dv1400 models) and 373534-001 (for use on HP Compaq nx4820 and Compaq Presario V2400 models). Maintenance and Service Guide...
Page 215 Screw Listing Black Phillips PM2.0×5.0 Screw Where used: Two screws that secure the hard drive cover to the computer (screws are captured on the cover by C clips; documented in Two screws that secure the memory module compartment cover to the computer (screws are captured on the cover by C clips;...
Page 216 Black Phillips PM2.0×5.0 Screw (Continued) Where used: 4 screws that secure the display assembly on the HP Compaq nx4820 and Compaq Presario V2400 computer (documented in Black Phillips M2.0×5.0 Screw Locations Maintenance and Service Guide Table C-1 Color Qty. Length Black 5.0 mm...
Page 217 Screw Listing Where used: 4 screws that secure the hard drive frame to the hard drive (documented in Section 5.4) Phillips M2.5×4.0 Screw Locations C–4 Table C-2 Phillips PM2.5×4.0 Screw Color Qty. Silver Length Thread 4.0 mm 2.5 mm Maintenance and Service Guide Head Width 4.0 mm...
Page 218 Where used: One screw that secures the optical drive to the computer (documented in Section 5.8) Phillips M2.0×8.5 Screw Location Maintenance and Service Guide Table C-3 Phillips PM2.0×8.5 Screw Color Qty. Black Screw Listing Length Thread 8.5 mm 2.0 mm Head Width 4.0 mm...
Page 219 Screw Listing Phillips PM2.0×8.5 Screw (Continued) Where used: 4 screws that secure the base enclosure on the HP Pavilion dv1400 (documented in Section Phillips M2.0×8.5 Screw Locations C–6 Table C-3 Color Qty. Black 5.12) Length Thread 8.5 mm 2.0 mm...
Page 220 Phillips PM2.0×8.5 Screw (Continued) Where used: 14 screws that secure the base enclosure on the HP Pavilion dv1400 (documented in Section Phillips M2.0×8.5 Screw Locations Maintenance and Service Guide Table C-3 Color Qty. Black 5.12) Screw Listing Length Thread 8.5 mm 2.0 mm...
Page 221 Screw Listing Phillips PM2.0×8.5 Screw (Continued) Where used: 15 screws that secure the base enclosure on the HP Compaq nx4820 and Compaq Presario V2400 (documented in Phillips M2.0×8.5 Screw Locations C–8 Table C-3 Color Qty. Length Black 8.5 mm Section 5.12)
Page 222 Silver Phillips PM2.0×5.0 Screw Where used: 3 screws that secure the switch cover on the HP Pavilion dv1400 (documented in Section Silver Phillips M2.0×5.0 Screw Locations Maintenance and Service Guide Table C-4 Color Qty. Silver 5.9) Screw Listing Length Thread 5.0 mm...
Page 223 Screw Listing Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 2 screws that secure the switch cover on the HP Compaq nx4820 and Compaq Presario V2400 (documented in Silver Phillips M2.0×5.0 Screw Locations C–10 Table C-4 Color Qty. Length Silver 5.0 mm Section 5.9)
Page 224 Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 2 screws that secure the keyboard on the HP Pavilion dv1400 (documented in Section 5.10) Silver Phillips M2.0×5.0 Screw Locations Maintenance and Service Guide Table C-4 Color Qty. Length Silver 5.0 mm Screw Listing...
Page 225 Screw Listing Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 4 screws that secure the base enclosure on the HP Pavilion dv1400 (documented in Section Silver Phillips M2.0×5.0 Screw Locations C–12 Table C-4 Color Qty. Silver 5.12) Length Thread 5.0 mm 2.0 mm...
Page 226 Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 3 screws that secure the base enclosure on the HP Compaq nx4820 and Compaq Presario V2400 (documented in Silver Phillips M2.0×5.0 Screw Locations Maintenance and Service Guide Table C-4 Color Qty. Length Silver 5.0 mm...
Page 227 Screw Listing Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 2 screws that secure the USB/S-Video controller board to the (documented in Section 5.13) Silver Phillips M2.0×5.0 Screw Locations C–14 Table C-4 Color Qty. Length Silver 5.0 mm Maintenance and Service Guide Head Thread Width...
Page 228 Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 3 screws that secure the heat sink to the (documented in Silver Phillips M2.0×5.0 Screw Locations Maintenance and Service Guide Table C-4 Color Qty. Length Silver 5.0 mm Screw Listing Head Thread Width 2.0 mm 4.0 mm Section...
Page 229 Screw Listing Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 2 screws that secure the fan to the heat sink (documented in Silver Phillips M2.0×5.0 Screw Locations C–16 Table C-4 Color Qty. Length Silver 5.0 mm Maintenance and Service Guide Head Thread Width 2.0 mm...
Page 230 Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 4 screws that secure the system board on the HP Pavilion dv1400 (documented in Section 5.21) Silver Phillips M2.0×5.0 Screw Locations Maintenance and Service Guide Table C-4 Color Qty. Length Silver 5.0 mm...
Page 231 Screw Listing Silver Phillips PM2.0×5.0 Screw (Continued) Where used: 4 screws that secure the system board on the HP Compaq nx4820 and Compaq Presario V2400 (documented in Silver Phillips M2.0×5.0 Screw Locations C–18 Table C-4 Color Qty. Length Silver 5.0 mm Section 5.21)
Page 232 Where used: 4 screws that secure the keyboard on the HP Compaq nx4820 and Compaq Presario V2400 (documented in Phillips M2.0×3.0 Screw Locations Maintenance and Service Guide Table C-5 Phillips PM2.0×3.0 Screw Color Qty. Black Section Screw Listing Length Thread 3.0 mm...
Page 233 Screw Listing Phillips PM2.0×3.0 Screw (Continued) Where used: 4 screws that secure the menu control button board on the HP Pavilion dv1400 (documented in Section Phillips M2.0×3.0 Screw Locations C–20 Table C-5 Color Qty. Black 5.17) Length Thread 3.0 mm 2.0 mm...
Page 234 Phillips PM2.0×3.0 Screw (Continued) Where used: 2 screws that secure the LED board on the HP Compaq nx4820 and Compaq Presario V2400 (documented in Phillips M2.0×3.0 Screw Locations Maintenance and Service Guide Table C-5 Color Qty. Length Black 3.0 mm Section 5.22)
Page 235 Screw Listing Where used: 4 screws that secure the display assembly on the HP Pavilion dv1400 (documented in Section Phillips M2.0×7.0 Screw Locations C–22 Table C-6 Phillips PM2.0×7.0 Screw Color Qty. Black 5.11) Length Thread 7.0 mm 2.0 mm Maintenance and Service Guide...
Page 236 Where used: 2 screws that secure the Bluetooth module to the USB/S-Video controller board (documented in Section Phillips M1.5×3.5 Screw Locations Maintenance and Service Guide Table C-7 Phillips PM1.5×3.5 Screw Color Qty. Silver 5.14) Screw Listing Length Thread 3.5 mm 1.5 mm Head Width...
Page 237 Screw Listing Where used: 3 screws that secure the LED board on the HP Pavilion dv1400 (documented in Section 5.22) Phillips M1.5×2.0 Screw Locations C–24 Table C-8 Phillips PM1.5×2.0 Screw Color Qty. Silver Length Thread 2.0 mm 1.5 mm Maintenance and Service Guide...
Page 238 Careful handling should be exercised when removing these components. ✎ Materials Disposal This HP product contains mercury in the display assembly backlight and may require special handling at end-of-life. Disposal of mercury may be regulated because of environmental considerations. For disposal or recycling information, contact...
Page 239 Display Component Recycling This appendix provides disassembly instructions for the display assembly. The display assembly must be disassembled to gain access to the backlight 1 and the LCD panel 2. ✎ Disassembly procedures differ from one display assembly to another. The procedures provided in this appendix are general disassembly instructions.
Page 240 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...
Page 241 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...
Page 242 Display Component Recycling 4. Disconnect all LCD panel cables 1 from the display inverter and remove the inverter 2. Removing the Display Inverter Maintenance and Service Guide D–5...
Page 243 Display Component Recycling 5. Remove all screws 1 that secure the LCD panel to the display enclosure. 6. Remove the LCD panel 2 from the display enclosure. Removing the LCD Panel D–6 Maintenance and Service Guide...
Page 244 Display Component Recycling 7. Turn the LCD panel upside down. 8. Remove all screws that secure the LCD panel frame to the LCD panel. Removing the LCD Panel Frame Screws Maintenance and Service Guide D–7...
Page 245 Display Component Recycling 9. Use a sharp-edged tool to cut the tape 1 that secures the side of the LCD panel to the LCD panel frame. 10. Remove the LCD panel frame 2 from the display panel. Removing the LCD Panel Frame D–8 Maintenance and Service Guide...
Page 246 11. Remove the screws 1 that secure the backlight cover to the LCD panel. 12. Lift the top edge of the backlight cover 2 and swing it forward. 13. Remove the backlight cover. Removing the Backlight Cover Maintenance and Service Guide Display Component Recycling D–9...
Page 247 Display Component Recycling 14. Turn the LCD panel right-side up. 15. Remove the backlight cables 1 from the clip 2 in the LCD panel. Releasing the Backlight Cables D–10 Maintenance and Service Guide...
Page 248 Display Component Recycling 16. Turn the LCD panel upside down. 17. Remove the backlight frame from the LCD panel. Removing the Backlight Frame Maintenance and Service Guide D–11...
Page 249 Display Component Recycling Å WARNING: The backlight contains mercury. Caution should be exercised when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury. 18. Slide the backlight out of the backlight frame. Removing the Backlight D–12 Maintenance and Service Guide...
Page 250 19. Disconnect the display cable 1 from the LCD panel. 20. Remove the screws 2 that secure the LCD panel to the LCD rear panel. 21. Release the LCD panel 3 from the LCD rear panel. 22. Release the tape 4 that secures the LCD panel to the LCD rear panel.
Page 251 Display Component Recycling 23. Remove the LCD panel. Removing the LCD Panel 24. Recycle the backlight and LCD panel. D–14 Maintenance and Service Guide...
Page 252 1394 port 1–11 6-in-1 Digital Media Reader 1–11 6-in-1 Digital Media Reader light 1–11 AC adapter, spare part number 3–25 3–30 arrow keys 1–19 audio troubleshooting 2–23 audio Y-cable, spare part number 3–32 audio-in (microphone) jack location 1–7 pin assignments A–6 audio-out (headphone) jack location 1–7 pin assignments A–6...
Page 253 Index computer feet illustrated 3–20 locations 5–11 Computer Setup Advanced Menu 2–6 File Menu 2–3 overview 2–1 Security Menu 2–4 Tools Menu 2–5 Computer Setup defaults 2–2 computer specifications 6–1 connector pin assignments external monitor A–4 headphone A–6 microphone A–6 monitor A–4 RJ-11 (modem) A–5 RJ-45 (network) A–2...
Page 254 spare part numbers 3–15 3–23 3–30 specifications 6–10 electrostatic discharge 4–4 4–8 entertainment cable, spare part number 3–25 exhaust vents 1–15 1–33 1–35 expansion port 1–15 external monitor port location 1–15 pin assignments A–4 keys 1–19 removal 5–57 spare part number 3–9 3–30 5–57 features 1–2...
Page 255 3–25 3–30 heat sink removal 5–55 spare part number 3–9 3–34 5–55 HP USB pocket drive, spare part number 3–24 I/O address specifications 6–15 IDE drive light 1–7 interrupt specifications 6–13 keyboard removal 5–26 spare part numbers 3–7 3–27...
Page 256 Miscellaneous Plastics Kit components 3–20 contents 3–19 3–34 3–35 spare part numbers 3–19 3–21 3–27 modem jack location 1–15 pin assignments A–5 modem, troubleshooting 2–28 monitor port location 1–15 pin assignments A–4 mouse, spare part number 3–25 3–27 Music button 1–23 network jack location 1–15 pin assignments A–2...
Page 257 Index removal/replacement preliminaries 4–1 procedures 5–1 right-side components 1–10 1–12 RJ-11 (modem) jack location 1–15 pin assignments A–5 RJ-45 (network) jack location 1–15 pin assignments A–2 RTC battery, removal 5–50 Screw Kit, spare part number 3–25 3–27 screw listing C–1 SD Card memory module, spare part numbers 3–19 3–35...
Page 258 TouchPad vertical scroll region 1–27 transporting precautions 4–5 troubleshooting audio 2–23 Computer Setup 2–2 docking device 2–16 flowcharts 2–7 keyboard 2–26 modem 2–28 network 2–28 nonfunctioning device 2–16 2–25 OS loading 2–17 overview 2–1 pointing device 2–27 power 2–10 video 2–14 Universal Serial Bus (USB) connector location 1–11...

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HP Compaq NX4820 Maintenance And Service Manual

1 Product Description

2 Troubleshooting

3 Illustrated Parts Catalog

4 Removal and Replacement Preliminaries

5 Removal and Replacement Procedures

Quick Links

Troubleshooting

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Table of Contents