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Maintenance and Service Guide
Compaq Evo Notebook N800c Series Compaq Evo Notebook N800v Series Compaq Evo Notebook N800w Series Compaq Presario 2800 Mobile PC
Document Part Number: 268135-002

October 2002

This guide is a troubleshooting reference used for maintaining and servicing the notebook. It provides comprehensive information on identifying computer features, components, and spare parts, troubleshooting computer problems, and performing computer disassembly procedures.

© 2002 Compaq Information Technologies Group, L.P. Compaq, the Compaq logo, Evo, and Presario are trademarks of Compaq Information Technologies Group, L.P. in the U.S. and/or other countries. Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and/or other countries. Intel, Pentium, and SpeedStep are trademarks of the Intel Corporation in the U.S. and/or other countries. All other product names mentioned herein may be trademarks of their respective companies. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided "as is" without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty.

Maintenance and Service Guide Second Edition October 2002 First Edition April 2002 Document Part Number: 268135-002

Contents
1 Product Description
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­2 1.2 Clearing a Password. . . . . . . . . . . . . . . . . . . . . . . . . . 1­4 1.3 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . 1­5 1.4 Computer External Components . . . . . . . . . . . . . . . . 1­6 1.5 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­16

2 Troubleshooting
2.1 Computer Setup and Diagnostics Utilities . . . . . . . . . 2­1 Selecting Computer Setup or Compaq Diagnostics . 2­1 Selecting from the File Menu . . . . . . . . . . . . . . . . . . 2­3 Selecting from the Security Menu . . . . . . . . . . . . . . . 2­4 Selecting from the Advanced Menu . . . . . . . . . . . . . 2­5 2.2 Using Compaq Diagnostics . . . . . . . . . . . . . . . . . . . . 2­7 Obtaining, Saving, or Printing Configuration Information. . . . . . . . . . . . . . . . . . . . . 2­7 Obtaining, Saving, or Printing Diagnostic Test Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2­8 2.3 Troubleshooting Flowcharts. . . . . . . . . . . . . . . . . . . 2­10

3 Illustrated Parts Catalog
3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . 3­1 3.2 Computer System Major Components . . . . . . . . . . . . 3­2 3.3 Miscellaneous Plastics/Hardware Kit Components . 3­14 3.4 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3­16 3.5 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3­18

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Contents

4 Removal and Replacement Preliminaries
4.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Service Considerations. . . . . . . . . . . . . . . . . . . . . . . . Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4.3 Preventing Damage to Removable Drives . . . . . . . . . 4.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . . 4.5 Packaging and Transporting Precautions . . . . . . . . . . 4.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 4.7 Grounding Equipment and Methods . . . . . . . . . . . . . 4­1 4­2 4­2 4­2 4­3 4­4 4­4 4­5 4­6

5 Removal and Replacement Procedures
5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­2 5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . . 5­2 5.3 Preparing the Computer for Disassembly . . . . . . . . . 5­4 5.4 Computer Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­9 5.5 Memory Expansion Board . . . . . . . . . . . . . . . . . . . . . 5­9 5.6 Mini PCI Communications Board . . . . . . . . . . . . . . 5­12 5.7 Connector Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­15 5.8 LED Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­16 5.9 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­18 5.10 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­22 5.11 Top Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­26 5.12 Speaker Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5­31 5.13 Display Release Assembly. . . . . . . . . . . . . . . . . . . 5­33 5.14 TouchPad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­35 5.15 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­38 5.16 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­40 5.17 Disk Cell RTC Battery . . . . . . . . . . . . . . . . . . . . . . 5­42 5.18 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­44 5.19 Modem Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5­49

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Contents

6 Specifications A Connector Pin Assignments B Power Cord Set Requirements
3-Conductor Power Cord Set . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . Country-Specific Requirements . . . . . . . . . . . . . . . . . . . . Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B­1 B­1 B­2 B­3

C Screw Listing Index

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1
Product Description
The Compaq Presario 2800 Series Mobile PC and Evo Notebook N800 Series offer advanced modularity, Intel Mobile Pentium 4 processors with SpeedStep technology with 64-bit architecture, industry-leading Accelerated Graphics Port (AGP) implementation, and extensive multimedia support.

Figure 1-1. Compaq Presario 2800 and Evo Notebook N800

Maintenance and Service Guide

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Product Description

1.1 Features


2.2-, 2.0-, 1.9-, 1.8-, 1.7-, 1.6-, 1.5-, or 1.4-GHz Intel Mobile Pentium 4 processor with SpeedStep technology, with 256-KB integrated L2 cache, varying by computer model ATI Mobile Radeon 9000 or ATI P7 graphics controller with 32 to 64 MB of shared SDRAM and 4X AGP graphics card, varying by computer model 128-MB high-performance Synchronous DRAM (SDRAM), expandable to 1.0 GB Microsoft Windows 2000, Windows XP Home, or Windows XP Professional, varying by computer model 15.0-inch UXGA (1600 × 1200), SXGA+ (1400 × 1050), or XGA (1024 × 768), or 14.1-inch XGA (1024 × 768), TFT display with over 16.7 million colors, varying by computer model Full-size Windows 98 keyboard with:








TouchPad pointing device (Presario 2800 and Evo Notebook N800c models) TouchPad and point stick (Evo Notebook N800c models only)



Network interface card (NIC) integrated on the system board, with a mini PCI V.92 modem Integrated wireless support of 802.11b and Bluetooth devices through MultiPort Support for one Type I or II PC Card slot with support for both 32-bit CardBus and 16-bit PC Cards External 65 W AC adapter with power cord 8-cell lithium ion (Li ion) battery pack

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Maintenance and Service Guide

Product Description



60-, 40-, 30-, or 20-GB high-capacity hard drive, varying by computer model Support for the following drives through the MultiBay:


1.44-MB diskette drive 24X Max CD-ROM drive 8X Max CD-RW drive 8X Max DVD-ROM drive 8X Max DVD-CDRW combination drive 40- or 30-GB hard drive LS-120 drive 8-cell battery pack RJ-45 network RJ-11 modem Universal Serial Bus Parallel devices External monitor AC power Stereo line out/headphone Mono microphone S-video Port replicator Infrared



Connectors for:




JBL Pro stereo speakers with bass reflex Dolby Digital certified sound

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Product Description

1.2 Clearing a Password
If the notebook 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 Section 5.3, "Preparing the Computer for Disassembly," for more information). 2. Remove the RTC battery (refer to Section 5.17, "Disk Cell RTC Battery"). 3. Wait approximately five minutes. 4. Replace the RTC battery and reassemble the computer. 5. Connect AC power to the computer. Do not reinsert any battery packs at this time. 6. Turn on the computer. All passwords and all CMOS settings have been cleared.

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Maintenance and Service Guide

Product Description

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:


Suspend Hibernation Setting customization by the user Hotkeys for setting level of performance Smart battery that provides an accurate battery power gauge Battery calibration Lid switch Suspend/resume Power/Suspend button Advanced Configuration and Power Management (ACP) compliance

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Product Description

1.4 Computer External Components
The external components on the front and right side of the computer are shown in Figure 1-2 and described in Table 1-6.
.

Figure 1-2. Front and Right Side Components
Table 1-6 Front and Right Side Components
Item 1 2 Component Stereo speakers (2) Power/Suspend light Function Produce stereo sound. On: Power is turned on. Off: Power is turned off. Blinking: Computer is in Suspend mode.

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Maintenance and Service Guide

Product Description

Table 1-6 Front and Right Side Components (Continued)
Item 3 4 Component Display release latch Battery light Function Opens the computer. On: A battery pack is charging. Blinking: A battery pack that is the only available power source has reached a low-battery condition. Accepts an 8-cell lithium ion (Li ion) battery pack. Supports the removable primary hard drive. The hard drive is secured to the computer by one screw. Allows airflow to cool internal components.

5 6

Battery bay Hard drive bay

7

Vent

damage, the computer Ä CAUTION: To preventoccurs. Do not block theshuts down if an overheating condition cooling vent. Avoid placing the computer on a blanket, rug, or other flexible surface that may cover the vent area. 8 Security cable slot Attaches an optional security cable to the computer.

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Product Description

The computer rear panel and left side components are shown in Figure 1-3 and described in Table 1-7.

Figure 1-3. Rear Panel and Left Side Components
Table 1-7 Rear Panel and Left Side Components
Item 1 Component Vent Function Allows airflow to cool internal components. CAUTION: To prevent damage, the computer shuts down if an overheating condition occurs. Do not block the cooling vent. Avoid placing the computer on a blanket, rug, or other flexible surface that may cover the vent area. 2 Infrared port Provides wireless communication between the computer and another infraredequipped device using an infrared beam. Connects a parallel device.

3

Parallel connector

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Maintenance and Service Guide

Product Description

Table 1-7 Rear Panel and Left Side Components (Continued)
Item 4 5 6 7 Component External monitor connector S-Video connector USB connectors (2) RJ-11 modem jack Function Connects an external monitor or overhead projector. Connects a television, VCR, camcorder, or overhead projector. Connect USB devices. Connects the modem cable to an internal modem. A modem cable is included with internal modem models. Connects the network cable. A network cable is not included with the computer. Connects any one of the following:


8 9

RJ-45 network jack DC power jack

AC adapter Optional automobile power adapter/charger Optional aircraft power adapter

10 11 12 13 14

Mono microphone jack Stereo speaker/ headphone jack PC Card slot PC Card eject button MultiBay

Connects a mono microphone, disabling the built-in microphone. Connects stereo speakers, headphones, headset, or television audio. Supports a 32-bit (CardBus) or 16-bit PC Card. Ejects a PC Card from the PC Card slot. Accepts MultiBay devices, such as a diskette drive, optical drive, hard drive, or optional battery pack.

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Product Description

The computer keyboard components are shown in Figure 1-4 and described in Table 1-8.

Figure 1-4. Keyboard Components
Table 1-8 Keyboard Components
Item 1 2 Component Function Perform preset functions. On: Num lock is on and the embedded numeric keypad is enabled.

F1 through F12
function keys

Num lock key

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Maintenance and Service Guide

Product Description

Table 1-8 Keyboard Components (Continued)
Item 3 4 5 Component Embedded numeric keypad Cursor control keys Windows application key Function Converts keys to numeric keypad. Move the cursor around the screen. Displays a menu when using a Microsoft application. The menu is the same one that is displayed by pressing the right mouse button. Displays the Windows Start menu. Used with hotkeys to perform preset hotkey functions.

6 7

Windows logo keys

Fn key

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Product Description

The computer top components are shown in Figure 1-5 and described in Table 1-9.

Figure 1-5. Top Components
Table 1-9 Top Components
Item 1 2 Component Display lid switch Power light Function Turns off the computer display if the computer is closed while on. On: Power is turned on. Blinking: Computer is in Suspend mode. The power light also blinks if a battery pack that is the only available power source reaches a low-battery condition. On: Num lock is on and the embedded numeric keypad is enabled. Provide quick access to the Internet. Refer to the Hardware Guide that ships with the computer for information about these buttons.

3 4

Num lock light Easy Access Buttons (3)

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Maintenance and Service Guide

Product Description

Table 1-9 Top Components (Continued)
Item 5 Component Power button Function Turns on the computer. Use the operating system Shut Down command to turn off the computer. Launches Windows Media Player to play MP3 music. Adjust the volume of the stereo speakers. On: Caps lock is on. Turns on when the hard drive, CD-, or DVD-ROM drive is accessed. Allows for audio input. Moves the mouse cursor, selects, and activates. Function like the left and right mouse buttons on an external mouse. Scrolls the screen left, right, up, and down. On: A battery pack is charging. Blinking: A battery pack that is the only available power source has reached a low-battery condition. On: Power is turned on. Off: Power is turned off. Blinking: Computer is in Suspend mode.

6 7 8 9 10 11 12 13 14

Digital audio button Volume control buttons Caps lock light Drive indicator light Microphone TouchPad TouchPad buttons EasyScroll Battery power light

15

Power/Suspend light

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Product Description

The external components on the bottom of the computer are shown in Figure 1-6 and described in Table 1-10.

Figure 1-6. Bottom Components
Table 1-10 Bottom Components
Item 1 Component Vent Function Allows airflow to cool internal components. CAUTION: To prevent damage, the computer shuts down if an overheating condition occurs. Do not block the cooling vent. Avoid placing the computer on a blanket, rug, or other flexible surface that may cover the vent area. 2 Connector cover Protects the parallel, external monitor, external keyboard/mouse, and USB connectors. Connects the computer to an optional port replicator.

3

Docking connector

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Maintenance and Service Guide

Product Description

Table 1-10 Bottom Components (Continued)
Item 4 5 6 7 Component Mini PCI communications compartment MultiBay MultiBay release switch Serial number Function Contains the mini PCI modem card. Accepts a diskette drive, optical drive, hard drive, or battery pack. Releases the MultiBay device from the connector. Identifies the computer; needed when you call Compaq customer support. Covers the memory expansion compartment that contains two memory expansion slots for memory expansion boards. Releases the battery pack from the battery compartment. Accepts an 8-cell lithium ion (Li ion) battery pack. Supports the primary hard drive. The hard drive is secured to the computer by one screw. Secures the hard drive to the computer.

8

Memory expansion compartment

9 10 11

Battery pack release switch Battery bay Hard drive bay

12

Hard drive retention screw

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Product Description

1.5 Design Overview
This section presents a design overview of key parts and features of the computer. Refer to Chapter 3, "Illustrated Parts Catalog," to identify replacement parts, and Chapter 5, "Removal and Replacement Procedures," for disassembly steps. The system board provides the following device connections:


Memory expansion board Hard drive Display Keyboard/TouchPad or pointing stick Audio Intel Mobile Pentium 4 processors with SpeedStep technology Fan PC Card Modem or modem/NIC

The computer uses an electrical fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software applications. Exhaust air is displaced through the ventilation grill located on the left side of the computer.

Ä

CAUTION: To properly ventilate the computer, allow at least a 3-inch (7.6 cm) clearance on the left and right sides of the computer.

1­16

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2
Troubleshooting

Å

WARNING: Only authorized technicians trained by Compaq 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, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard. Any indication of component replacement or printed wiring board modification may void any warranty or exchange allowances.

2.1 Computer Setup and Diagnostics Utilities
Selecting Computer Setup or Compaq Diagnostics
The computer features two Compaq system management utilities:


Computer Setup--A system information and customization utility that can be used even when your operating system is not working or will not load. This utility includes settings that are not available in Windows.

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Troubleshooting



Compaq Diagnostics--A system information and diagnostic utility that is used within your Windows operating system. Use this utility whenever possible to:


Display system information. Test system components. Troubleshoot a device configuration problem in Windows 2000, Windows XP Professional, or Windows XP Home.

to configure device to a It is not necessarycomputer or ana optionalconnected base.USB connector on the docking

Using Computer Setup
Information and settings in Computer Setup are accessed from the File, Security, or Advanced menus: 1. Turn on or restart the computer. Press F10 while the F10 = ROM Based Setup message is displayed in the lower-left corner of the screen.


To change the language, press F2. To view navigation information, press F1. To return to the Computer Setup menu, press esc.

2. Select the File, Security, or Advanced menu. 3. To close Computer Setup and restart the computer:


Select File > Save Changes and Exit and press enter. Select File > Ignore Changes and Exit and press enter.

or


4. When you are prompted to confirm your action, press F10.

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Troubleshooting

Selecting from the File Menu
Table 2-1 File Menu Select
System Information

To Do This


View identification information about the computer, a docking base, and any battery packs in the system. View specification information about the processor, memory and cache size, and system ROM.



Save to Floppy Restore from Floppy Restore Defaults

Save system configuration settings to a diskette. Restore system configuration settings from a diskette. Replace configuration settings in Computer Setup with factory default settings. (Identification information is retained.) Cancel changes entered during the current session, then exit and restart the computer. Save changes entered during the current session, then exit and restart the computer.

Ignore Changes and Exit Save Changes and Exit

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Troubleshooting

Selecting from the Security Menu
Table 2-2 Security Menu Select
Setup Password

To Do This
Enter, change, or delete a setup password. (The setup password is called an administrator password in Compaq Computer Security, a program accessed from the Windows Control Panel.) Enter, change, or delete a power-on password. Enable/disable DriveLock; change a DriveLock User or Master password. Settings are accessible only DriveLock enter Computer Setup by when you turning on (not restarting) the computer.

Power-on Password DriveLock Passwords

Password Options Password options can be selected only when a power-on password has been set.

Enable/Disable:


QuickLock QuickLock on Suspend QuickBlank

To enable QuickLock on Suspend or QuickBlank, you must first enable
QuickLock. Enable/Disable:


Device Security

Ports or diskette drives* Diskette write* CD-ROM or diskette startup

for a can Settingsin theDVD-ROMfield. be entered CD-ROM System IDs Enter identification numbers for the computer, a docking base, and all battery packs in the system.

*Not applicable to SuperDisk LS-120 drives.

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Troubleshooting

Selecting from the Advanced Menu
Table 2-3 Advanced Menu Select
Language (or press F2) Boot Options

To Do This
Change the Computer Setup language. Enable/Disable:


QuickBoot, which starts the computer more quickly by eliminating some startup tests. (If you suspect a memory failure and want to test memory automatically during startup, disable QuickBoot.) MultiBoot, which sets a startup sequence that can include most bootable devices and media in the system. Enable/disable the embedded numeric keypad at startup. Enable/disable multiple standard pointing devices at startup. (To set the computer to support only a single, usually nonstandard, pointing device at startup, select Disable.) Enable/disable USB legacy support for a USB keyboard. (When USB legacy support is enabled, the keyboard works even when a Windows operating system is not loaded.) Set an optional external monitor or overhead projector connected to a video card in a docking base as the primary device. (When the computer display is set as secondary, the computer must be shut down before undocking from a docking base.)



Device Options







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Troubleshooting

Table 2-3 Advanced Menu (Continued) Select
Device Options (continued)

To Do This


Change the parallel port mode from EPP (Enhanced Parallel Port [default]) to standard, bidirectional, EPP or ECP (Enhanced Capabilities Port). Set video-out mode to NTSC (default), PAL, NTSC-J, or PAL-M.* Enable/disable all settings in the SpeedStep window. (When Disable is selected, the computer runs in Battery Optimized mode.) Specify how the computer recognizes multiple identical docking bases that are identically equipped. (Select Disable to recognize the docking bases as a single docking base; select Enable to recognize the docking bases individually, by serial number.) Enable/disable the reporting of the processor serial number by the processor to the software.







HDD Self Test Options

Run a quick comprehensive self test on hard drives in the system that support the test features.

*Video modes vary even within regions. However, NTSC is common in North America; PAL, in Europe, Africa, and the Middle East; NTSC-J, in Japan; and PAL-M, in Brazil. Other South and Central American regions may use NTSC, PAL, or PAL-M.

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Troubleshooting

2.2 Using Compaq Diagnostics
When you access Compaq Diagnostics, a scan of all system components is displayed on the screen before the Compaq Diagnostics window opens. You can display more or less information from anywhere within Compaq Diagnostics by selecting Level on the menu bar. Compaq Diagnostics is designed to test Compaq components. If non-Compaq components are tested, the results may be inconclusive.

Obtaining, Saving, or Printing Configuration Information
1. Access Compaq Diagnostics by selecting Start > Settings > Control Panel > Compaq Diagnostics. 2. Select Categories, then select a category from the drop-down list.


To save the information, select File > Save As. To print the information, select File > Print.

3. To close Compaq Diagnostics, select File > Exit.

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Troubleshooting

Obtaining, Saving, or Printing Diagnostic Test Information
1. Access Compaq Diagnostics by selecting Start > Settings > Control Panel > Compaq Diagnostics. 2. Select the Test tab. 3. In the scroll box, select the category or device you want to test. 4. Select a test type:


Quick Test--Runs a quick, general test on each device in a selected category. Complete Test--Performs maximum testing on each device in a selected category. Custom Test--Performs maximum testing on a selected device.


To run all tests for your selected device, select the Check All button. To run only the tests you select, select the Uncheck All button, then select the checkbox for each test you want to run.

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Troubleshooting

5. Select a test mode:


Interactive Mode--Provides maximum control over the testing process. You determine whether the test was passed or failed and may be prompted to insert or remove devices. Unattended Mode--Does not display prompts. If errors are found, they are displayed when testing is complete.



6. Select the Begin Testing button. 7. Select a tab to view a test report:


Status tab--Summarizes the tests run, passed, and failed during the current testing session. Log tab--Lists tests run on the system, the number of times each test has run, the number of errors found on each test, and the total run time of each test. Error tab--Lists all errors found in the computer with their error codes. Log tab--Select the Log tab Save button. Error tab--Select the Error tab Save button. Log tab--Select File > Save As, then print the file from your folder.



8. Select a tab to save the report:


9. Select a tab to print the report:

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Troubleshooting

2.3 Troubleshooting Flowcharts
Table 2-4 Troubleshooting Flowcharts Overview
Flowchart 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 Description Initial troubleshooting No power, part 1 No power, part 2 No power, part 3 No power, part 4 No video, part 1 No video, part 2 Nonfunctioning docking station No operating system (OS) loading No OS loading from hard drive, part 1 No OS loading from hard drive, part 2 No OS loading from hard drive, part 3 No OS loading from diskette drive No OS loading from CD- or DVD-ROM drive No audio, part 1 No audio, part 2 Nonfunctioning device Nonfunctioning keyboard Nonfunctioning pointing device No network or modem connection

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Troubleshooting

Flowchart 2.1--Initial Troubleshooting
Begin troubleshooting.

N
Is there power? Go to Section 2.2, No Power.

Y N
Beeps, LEDs, or error messages? Check LED board, speaker connections. All drives working?

N
Go to Section 2.17, Nonfunctioning Device.

Y N
Is there video? (no boot) Go to Section 2.6, No Video.

Y N
Keyboard/ pointing device working? Go to Section 2.18, Nonfunctioning Keyboard, or Section 2.19, Nonfunctioning Pointing Device.

Y N
Is the OS loading? Go to Section 2.9, No OS Loading.

Y

N
Connecting to network or modem? Go to Section 2.20, No Network or Modem.

Y N
Is there sound? Go to Section 2.15, No Audio.

Y

Y

End

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Troubleshooting

Flowchart 2.2--No Power, Part 1
No Power (power LED is off).

Remove from docking station (if applicable).

N
Power up on battery power? *Reset power. Power up on battery power?

N
Go to Section 2.3, No Power, Part 2.

Y N
Power up on AC power? *Reset power.

Y N
Power up on AC power? Go to Section 2.4, No Power, Part 3.

Y Y
Power up in docking station? Done

Y

N
1. Reseat the power cables in the docking station and at the AC outlet. 2. Ensure the AC power source is active. 3. Ensure that the power strip is working.

*NOTES: 1. On some models there is a separate reset button. 2. On some models the computer may be reset using the Suspend switch and either the lid switch or the main power switch.

Y
Done Power up in docking station?

N
Go to Section 2.8, Nonfunctioning Docking Station.

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Troubleshooting

Flowchart 2.3--No Power, Part 2
Continued from Section 2.2, No Power, Part 1.

Visually check for debris in battery socket and clean if necessary.

Y
Power on? Done

N
Check battery by recharging, moving it to another computer, or replacing it.

N
Power on? Replace power supply (if applicable).

Y N
Done Power on? Go to Section 2.4, No Power, Part 3.

Y

Done

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Troubleshooting

Flowchart 2.4--No Power, Part 3
Continued from Section 2.3, No Power, Part 2. Plug directly into AC outlet.

Y
Power LED on? Done

N
Reseat AC adapter in computer and at power source.

Y
Power on? Done

N N
Power outlet active? Try different outlet. External Internal or external AC adapter? Internal Replace power cord. Go to Section 2.5, No Power, Part 4. Replace external AC adapter.

Y

N
Power on?

Y
Power on? Done

Y
Done

N

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Maintenance and Service Guide

Troubleshooting

Flowchart 2.5--No Power, Part 4
Continued from Section 2.4, No Power, Part 3.

Open computer.

Y
Loose or damaged parts?

N
Close computer and retest.

Reseat loose components and boards and replace damaged items.

N
Power on? 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* Done *NOTE: Replace these items as a set to prevent shorting out among components.

Y

Maintenance and Service Guide

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Troubleshooting

Flowchart 2.6--No Video, Part 1
No Video. Docking Station Stand-alone or Docking Station? Stand-alone Internal or external display*? External Adjust brightness. Adjust brightness. Internal Go to Section 2.7, No Video, Part 2. *NOTE: To change from internal to external display, use the hotkey combination.

Y
Video OK? Done

N

A
Y

Press lid switch to ensure operation.

Y
Done Video OK? Done

Video OK?

N
Check for bent pins on cable.

N
Replace the following one at a time. Test after each replacement. 1. Cable between notebook and computer display (if applicable) 2. Inverter board (if applicable) 3. Display 4. System board

N
Video OK? Try another display. Internal and external video OK?

N
Replace system board.

Y
Done

Y
Done

2­16

Maintenance and Service Guide

Troubleshooting

Flowchart 2.7--No Video, Part 2
Continued from Section 2.6, No Video, Part 1.

Remove notebook from docking station, if connected.

Adjust display brightness.

Check brightness of external monitor.

N
Video OK? Go to "A" in Section 2.6, No Video, Part 1. Video OK?

Y
Done

Y
Check that notebook is properly seated in docking station, for bent pins on cable, and for monitor connection.

N
Try another external monitor.

Y
Video OK? Done Internal and external video OK?

Y
Done

N

N
Go to Section 2.8, Nonfunctioning Docking Station.

Adjust external monitor display.

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2­17

Troubleshooting

Flowchart 2.8--Nonfunctioning Docking Station (if applicable)
Nonfunctioning Docking Station.

Reseat power cord in docking station and power outlet.

Check voltage setting on docking station.

Reinstall notebook into docking station.

Reset monitor cable connector at docking station.

Y
Docking station operating? Done

N Y
Docking station operating? Done Replace the following docking station components one at a time. Check computer operation after each replacement. 1. Power supply 2. I/O board 3. Backplane board 4. Switch box 5. Docking motor mechanism

N
Remove notebook, reseat all internal parts, and replace any damaged items in docking station.

2­18

Maintenance and Service Guide

Troubleshooting

Flowchart 2.9--No Operating System (OS) Loading
No OS Loading.*

Reseat power cord in docking station and power outlet. No OS loading from hard drive, go to Section 2.10.

No OS loading from diskette drive, go to Section 2.13. No OS loading from CD- or DVD-ROM drive, go to Section 2.14. No OS loading from network, go to Section 2.20. *NOTE: Before beginning troubleshooting, always check cable connections, cable ends, and drives for bent or damaged pins.

Maintenance and Service Guide

2­19

Troubleshooting

Flowchart 2.10--No OS Loading from Hard Drive, Part 1
OS not loading from hard drive.

Y
Nonsystem disk message?

N
Reseat external hard drive.

Go to Section 2.11, No OS Loading from Hard Drive, Part 2.

Y
OS loading? Done

N N
Boot from CD?

N
Boot from diskette?

Y
Check the setup utility for correct booting order.

Y N
Change boot priority through the setup utility and reboot.

Go to Section 2.13, No OS Loading from Diskette Drive.

Boot from hard drive?

Y
Done Boot from hard drive?

N
Go to Section 2.17, Nonfunctioning Device.

Y
2­20 Maintenance and Service Guide

Troubleshooting

Flowchart 2.11--No OS Loading from Hard Drive, Part 2
Continued from Section 2.10, No OS Loading from Hard Drive, Part 1.

Reseat hard drive.

N
CD or diskette in drive? 1. Replace hard drive. 2. Replace system board.

Y
Hard drive accessible? Done

Y N
Remove diskette and reboot.

Run FDISK.

Y
Boot from hard drive? Done Hard drive partitioned?

N
Create partition, then format hard drive to bootable C:\ prompt.

N N
Boot from diskette drive? Go to Section 2.13, No OS Loading from Diskette Drive.

Y N
Hard drive formatted?

Y N
Hard drive accessible?

Y

Y
Computer booted? Done

Format hard drive and bring to a bootable C:\ prompt.

Y
Go to Section 2.12, No OS Loading from Hard Drive, Part 3.

N
Go to Section 2.12, No OS Loading from Hard Drive, Part 3.

Load OS using Restore CD (if applicable).

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Troubleshooting

Flowchart 2.12--No OS Loading from Hard Drive, Part 3
Continued from Section 2.11, No OS Loading from Hard Drive, Part 2.

N
System files on hard drive? Install OS and reboot.

Y Y
Virus on hard drive? Clean virus. OS loading from hard drive?

Y
Done

N
Run SCANDISK and check for bad sectors.

N Y
Diagnostics on diskette? Replace hard drive.

N N
Can bad sectors be fixed? Replace hard drive. Run diagnostics and follow recommendations.

Y N
Fix bad sectors. Boot from hard drive? Replace hard drive.

Y
Done

2­22

Maintenance and Service Guide

Troubleshooting

Flowchart 2.13--No OS Loading from Diskette Drive
Y
OS not loading from diskette drive. Reseat diskette drive. OS loading? Done

N

Y
Nonsystem disk message? Bootable diskette in drive?

N
Install bootable diskette and reboot computer.

N N
Boot from another device? Go to Section 2.17, Nonfunctioning Device.

Y

Check diskette for system files. Try different diskette.

Y N
Diskette drive enabled in the setup utility? Enable drive and cold boot computer. Nonsystem disk error?

Y
1. Replace diskette drive. 2. Replace system board.

Y Y
Diskette drive boot order? Clear CMOS. Refer to Section 1.2, "Clearing a Password," for instructions.

N Y
OS loading? Done

N

N

Change boot priority using the setup utility.

Go to Section 2.17, Nonfunctioning Device.

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Troubleshooting

Flowchart 2.14--No OS Loading from CD- or DVD-ROM Drive
No OS Loading from CD- or DVD-ROM Drive.

Y
Disc in drive? Bootable disc in drive?

N

N
Install bootable disc.

Y

Install bootable disc and reboot computer.

Try another bootable disc.

Y
Boots from CD or DVD? Done

N Y
Reseat drive. Boots from CD or DVD? Done

N N
Booting from another device? Go to Section 2.17, Nonfunctioning Device. Clear CMOS. Refer to Section 1.2, "Clearing a Password," for instructions.

Y Y
Booting order correct?

N
Correct boot order using the setup utility.

Go to Section 2.17, Nonfunctioning Device.

2­24

Maintenance and Service Guide

Troubleshooting

Flowchart 2.15--No Audio, Part 1
Y
No Audio. Turn up audio internally or externally. Audio? Done

N

Y
Notebook in docking station (if applicable)? Undock Internal audio?

N
Go to Section 2.16, No Audio, Part 2.

N

Y
Replace the following docking station components one at a time as applicable. Check after each change. 1. Reseat docking station audio cable. 2. Replace audio cable. 3. Replace speaker. 4. Replace docking station audio board. 5. Replace backplane board. 6. Replace I/O board.

Go to Section 2.16, No Audio, Part 2.

Y
Go to Section 2.17, Nonfunctioning Device. Audio? Done

N

Maintenance and Service Guide

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Troubleshooting

Flowchart 2.16--No Audio, Part 2
Continued from Section 2.15, No Audio, Part 1.

N
Audio driver in OS configured? Reload audio drivers.

Y N
Correct drivers for application? Load drivers and set configuration in OS.

Y
Connect to external speaker.

N
Audio?

Y

Replace audio board and speaker connections in notebook (if applicable).

Y
Audio? Done

N
1. Replace internal speakers. 2. Replace audio board (if applicable). 3. Replace system board.

2­26

Maintenance and Service Guide

Troubleshooting

Flowchart 2.17--Nonfunctioning Device
Nonfunctioning Device.

Reseat device.

Unplug the nonfunctioning device from the notebook, inspect cables and plugs for bent or broken pins or other damage.

Y
Clear CMOS. Any physical device detected? Fix or replace broken item.

N
Reattach device. Close notebook, plug in power, and reboot.

Possible bad hard drive. Replace drive.

Go to Section 2.9, No OS Loading.

N
Device boots properly? Possible bad NIC. Replace card. If integrated NIC, replace system board. Device boots properly?

N

Y

Y

Done

Possible bad diskette drive. Replace drive.

Done

Maintenance and Service Guide

2­27

Troubleshooting

Flowchart 2.18--Nonfunctioning Keyboard
Keyboard not operating properly.

Connect notebook to good external keyboard.

N
External device works? Replace system board.

Y
Reseat internal keyboard connector (if applicable).

N
OK? Replace internal keyboard or cable.

Y Y
Done OK? Done

N
Replace system board.

2­28

Maintenance and Service Guide

Troubleshooting

Flowchart 2.19--Nonfunctioning Pointing Device
Pointing device not operating properly.

Connect notebook to good external pointing device.

N
External device works? Replace system board.

Y
Reseat internal pointing device connector (if applicable).

N
OK? Replace internal pointing device or cable.

Y Y
Done OK? Done

N
Replace system board.

Maintenance and Service Guide

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Troubleshooting

Flowchart 2.20--No Network or Modem Connection
No network or modem connection.

N
Network or modem jack active? Replace jack or have jack activated.

Y Y
Digital line? Connect to nondigital line.

N N
NIC/modem configured in OS? Reload drivers and reconfigure. OK?

Y
Done

Y
Disconnect all power from the notebook and open.

N
Replace NIC/modem (if applicable).

Y
Reseat NIC/modem (if applicable). OK? Done

N
Replace system board.

2­30

Maintenance and Service Guide

3
Illustrated Parts Catalog
This chapter provides an illustrated parts breakdown and a reference for spare part numbers and option part numbers.

3.1 Serial Number Location
When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer (Figure 3-1).

Figure 3-1. Serial Number Location

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Illustrated Parts Catalog

3.2 Computer System Major Components

Figure 3-2. Computer System Major Components

3­2

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-1 Spare Parts: Computer System Major Components
Spare Part Number

Item 1

Description Displays Contain parts with carbon finish for use with Evo Notebook N800c, N800v, and N800w models 15-inch, UXGA 15-inch, SXGA+ 15-inch, XGA 14-inch, XGA Contain parts with silver finish for use with Presario 2800 models 15-inch, UXGA 15-inch, SXGA+ 15-inch, XGA 14-inch, XGA MultiPort cover

286872-001 286871-001 286870-001 286869-001

285265-001 285264-001 285263-001 285262-001 289037-001

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Illustrated Parts Catalog

Figure 3-2. Computer System Major Components

3­4

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-1 Spare Parts: Computer System Major Components (Continued)
Spare Part Number

Item

Description Miscellaneous Plastics/Hardware Kit Contains parts with silver finish for use with Presario 2800 models Contains parts with carbon finish for use with Evo Notebook N800c, N800v, and N800w models Includes:

285261-001 286868-001

2a 2b 2c 2d 2e 2f 2g 2h 2i 2j 2k 2l 2m 3

Left hinge cover Right hinge cover PC Card bezel PC Card slot space saver Keyboard shield TouchPad bracket Display assembly release Left display support Fan channel Right display support Connector cover Mini PCI compartment cover Memory expansion compartment cover LED cover

not illustrated: Computer feet MultiBay weight saver Docking connector cover

288503-001

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Illustrated Parts Catalog

Figure 3-2. Computer System Major Components

3­6

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-1 Spare Parts: Computer System Major Components (Continued)
Spare Part Number

Item 4

Description Keyboards (for use with TouchPad models only) Arabic Belgian Brazilian Chinese Czech Danish French French Canadian German Greek Hebrew Hungarian International Italian 285280-171 285280-181 285280-201 285280-AA1 285280-221 285280-081 285280-051 285280-121 285280-041 285280-151 285280-BB1 285280-211 285280-002 285280-061 Korean Latin American Spanish Norwegian Portuguese Russian Slovakian Spanish Swedish Swiss Taiwanese Thai Turkish U.K. English U.S. English

285280-AD1 285280-161 285280-091 285280-131 285280-251 285280-231 285280-071 285280-101 285280-111 285280-AB1 285280-281 285280-141 285280-031 285280-001

Keyboards with pointing stick Arabic Belgian Brazilian Czech Danish French French Canadian German Greek Hebrew Hungarian International Italian Korean 285281-171 285281-181 285281-201 285281-221 285281-081 285281-051 285281-121 285281-041 285281-151 285281-BB1 285281-211 285281-002 285281-061 285281-AD1 Latin American Spanish Norwegian Portuguese Russian Slovakian Spanish Swedish Swiss Taiwanese Thai Turkish U.K. English U.S. English 285281-161 285281-091 285281-131 285281-251 285281-231 285281-071 285281-101 285281-111 285281-AB1 285281-281 285281-141 285281-031 285281-001

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Illustrated Parts Catalog

Figure 3-2. Computer System Major Components

3­8

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-1 Spare Parts: Computer System Major Components (Continued)
Spare Part Number

Item 5

Description Top cover for Dual Point (TouchPad and Point Stick) for TouchPad only (silver finish for use with Presario 2800 models) for TouchPad only (carbon finish for use with Evo Notebook N800c, N800v, and N800w models)

285256-001 285257-001 295699-001

6

Hard drives 60 GB 40 GB 40 GB (does not include hard drive bezel) 30 GB 20 GB 285277-001 285276-001 301245-001 285275-001 285274-001

7

Hard drive bezels Hard drive bezel with silver finish for use with Presario 2800 models Hard drive bezel with carbon finish for use with Evo Notebook N800c, N800v, and N800w models 286874-001 286875-001 285258-001

8 9

TouchPad TouchButton boards for Dual Point (TouchPad and Point Stick) for TouchPad only

285259-001 285260-001 285266-001 285267-001 198718-001

10 11 12

Speaker assembly Fan Disk cell RTC battery

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Illustrated Parts Catalog

Figure 3-2. Computer System Major Components

3­10

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-1 Spare Parts: Computer System Major Components (Continued)
Spare Part Number

Item 13

Description Processors Intel Mobile Pentium 4 with SpeedStep technology 2.2-GHz processor 2.0-GHz processor 1.9-GHz processor 1.8-GHz processor 1.7-GHz processor 1.6-GHz processor 1.5-GHz processor 1.4-GHz processor Intel Mobile Pentium 4 (non-SpeedStep technology) 1.6-GHz processor 1.5-GHz processor Miscellaneous Cable Kit, includes:

308420-001 305075-001 305074-001 285295-001 285294-001 285293-001 285292-001 285291-001 306704-001 306703-001 285268-001

14a 15

Modem cable System boards (do not contain memory) with the ATI Mobile Radeon 9000 graphics controller 64-MB of video memory 32-MB of video memory with the ATI P7 graphics controller 64-MB of video memory 32-MB of video memory 310784-001 310783-001 285254-001 285253-001 281234-001

16

Battery pack, 8 cell, 4.0 AH, 62 WH

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Illustrated Parts Catalog

Figure 3-2. Computer System Major Components

3­12

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-1 Spare Parts: Computer System Major Components (Continued)
Spare Part Number

Item 17

Description Battery bezels Battery bezel with silver finish for use with Presario 2800 models Battery bezel with carbon finish for use with Evo Notebook N800c, N800v, and N800w models

286876-001 286877-001

18

MultiBay devices Diskette drive 24X Max CD-ROM drive 16X Max CD-RW drive 8X Max CD-RW drive 8X Max DVD-ROM drive 24X Max DVD-ROM/CD-RW combination drive 8X Max DVD-ROM/CD-RW combination drive LS-120 drive Battery pack 285278-001 285282-001 301244-001 285284-001 285283-001 301294-001 285285-001 285279-001 281235-001

19

Base enclosures (includes shield) with silver finish (Presario 2800 models only) with carbon finish (Evo Notebook N800c, N800v, and N800w models) 285255-001 286867-001

20

Mini PCI communications boards modem, type III, mini PCI, 56 Kbps (United States) modem, type III, mini PCI, 56 Kbps (International) 285286-001 285287-002

21

Memory expansion boards 512 MB 256 MB 128 MB 285273-001 285272-001 285271-001

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Illustrated Parts Catalog

3.3 Miscellaneous Plastics/Hardware Kit Components

Figure 3-3. Miscellaneous Plastics/Hardware Kit Components

3­14

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-2 Miscellaneous Plastics/Hardware Kit Components Spare Part Number 285261-001 (contains parts with silver finish for use with Presario 2800 models) Spare Part Number 286868-001 (contains parts with carbon finish for use with Evo Notebook N800c, N800v, and N800w models)
Item 1 2 3 4 5 6 7 8 Description Left hinge cover Right hinge cover PC Card bezel PC Card slot space saver Keyboard shield Display release assembly Left display support Fan channel Item 9 10 11 12 13 14 15 16 Description Right display support Connector cover TouchPad bracket Mini PCI compartment cover Memory expansion compartment cover Computer feet (5) MultiBay weight saver Docking connector cover

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Illustrated Parts Catalog

3.4 Mass Storage Devices

Figure 3-4. Mass Storage Devices

3­16

Maintenance and Service Guide

Illustrated Parts Catalog

l

Table 3-3 Mass Storage Devices
Spare Part Number

Item 1

Description Optical drives 24X Max CD-ROM drive 16X Max CD-RW drive 8X Max CD-RW drive 8X Max DVD-ROM drive 24X Max DVD-ROM/CD-RW combination drive 8X Max DVD-ROM/CD-RW combination drive

285282-001 301244-001 285284-001 285283-001 301294-001 285285-001

2

Hard drives 60 GB 40 GB 40 GB (does not include hard drive bezel) 30 GB 20 GB 285277-001 285276-001 301245-001 285275-001 285274-001 285278-001

3

Diskette drive

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Illustrated Parts Catalog

3.5 Miscellaneous
Table 3-4 Spare Parts: Miscellaneous (not illustrated)
Spare Part Number

Description AC adapters 90 watt 65 watt Advanced Port Replicator Bluetooth MultiPort Module with cover 802.11b Wireless Local Area Network (LAN) MultiPort Module with cover Common Port Replicator Logo Kit Power cord, 2-wire Australian Chinese International 174120-011 174120-AA1 174120-002 Swiss U.K. English U.S. English

287515-001 285288-001 288502-001 288504-001 286873-001 285289-001 288501-001

174120-115 174120-031 174120-001

3­18

Maintenance and Service Guide

Illustrated Parts Catalog

Table 3-4 Spare Parts: Miscellaneous (not illustrated) (Continued)
Spare Part Number

Description Power cord, 3-wire Australian Chinese International Italian Japanese 198723-011 198723-AA1 198723-B31 198723-061 198723-291 Korean Swedish Swiss Taiwanese U.K. English U.S. English

198723-AD1 198723-101 198723-BG1 198723-AB1 198723-031 198723-001 285290-001

Screw Kit (includes the following screws; refer to Appendix C, "Screw Listing," for more information on screw specifications and usage.)


Phillips M3.0 × 4.0 Phillips M2.5 × 9.0 Phillips M2.0 × 10.0



Phillips M2.0 × 8.0 Phillips M2.0 × 5.5 Phillips M2.0 × 4.0

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3­19

4
Removal and Replacement Preliminaries
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 Tool kit (includes connector removal tool, loopback plugs, and case utility tool)

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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. the As you remove each subassembly from the computer, place work subassembly (and all accompanying screws) away from the area to prevent damage.

Plastic Parts
Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions.

Cables and Connectors
Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion. Handle cables by the connector whenever possible. In all cases, avoid bending, twisting, or tearing cables. Ensure 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.

Ä

CAUTION: When servicing the computer, ensure that cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer.

4­2

Maintenance and Service Guide

Removal and 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 drive, shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, then shut it down. Before removing a diskette drive or optical drive, ensure that a diskette or disc is not in the drive. Ensure that the optical drive tray is closed. Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. Handle drives on surfaces that have at least one inch of shock-proof foam. Avoid dropping drives from any height onto any surface. After removing a hard drive, CD-ROM drive, or a diskette drive, place it in a static-proof bag. Avoid exposing a hard drive to products that have magnetic fields, such as monitors or speakers. Avoid exposing a drive to temperature extremes or to liquids. If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective packaging and label the package "Fragile: Handle With Care."







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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. A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge may not be affected at all and can work perfectly throughout a normal cycle. Or the device may function normally for a while, then degrade in the internal layers, reducing its life expectancy.

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. Keep electrostatic-sensitive parts in their containers until the parts arrive at static-free workstations. Place items on a grounded surface before removing items from their containers. Always be properly grounded when touching a sensitive component or assembly.

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Maintenance and Service Guide

Removal and Replacement Preliminaries



Store reusable electrostatic-sensitive parts from assemblies in protective packaging or nonconductive foam. Use transporters and conveyors made of antistatic belts and roller bushings. Ensure that mechanized equipment used for moving materials is wired to ground and that proper materials are selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate electric charges.

4.6 Workstation Precautions
Use the following grounding precautions at workstations:


Cover the workstation with approved static-dissipative material (refer to Table 4-2). Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. Use conductive field service tools, such as cutters, screwdrivers, and vacuums. When using fixtures that must directly contact dissipative surfaces, only use fixtures made of static-safe materials. Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids and Styrofoam. Handle electrostatic-sensitive 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.



Maintenance and Service Guide

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Removal and Replacement Preliminaries

4.7 Grounding Equipment and Methods
Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation.


When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times. On grounded mats with banana-plug connectors, connect a wrist strap with alligator clips. When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or boot straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use foot straps on both feet with a minimum of one-megohm resistance between the operator and ground. To be effective, the conductive strips must be worn in contact with the skin.



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 Static-dissipative tables or floor mats with hard ties to the ground Field service kits Static awareness labels Material-handling packages

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Removal and Replacement Preliminaries



Nonconductive plastic bags, tubes, or boxes Metal tote boxes Electrostatic voltage levels and protective materials

Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities.
Table 4-1 Typical Electrostatic Voltage Levels
Relative Humidity 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 10% 35,000 V 12,000 V 6,000 V 2,000 V 11,500 V 14,500 V 26,500 V 21,000 V 40% 15,000 V 5,000 V 800 V 700 V 4,000 V 5,000 V 20,000 V 11,000 V 55% 7,500 V 3,000 V 400 V 400 V 2,000 V 3,500 V 7,000 V 5,000 V

A product can be degraded by as little as 700 volts.

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Removal and Replacement Preliminaries

Table 4-2 lists the shielding protection provided by antistatic bags and floor mats.
Table 4-2 Static-Shielding Materials
Material Antistatic plastic Carbon-loaded plastic Metallized laminate Use Bags Floor mats Floor mats Voltage Protection Level 1,500 V 7,500 V 5,000 V

4­8

Maintenance and Service Guide

5
Removal and Replacement Procedures
This chapter provides removal and replacement procedures. Phillips P1 screws are removed during disassembly. There are 48 screws, in nine different sizes, that must be removed, replaced, and loosened when servicing the computer. Make special note of each screw size and location during removal and replacement. Refer to Appendix C, "Screw Listing," for detailed information on screw sizes, locations, and usage.

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Removal and Replacement Procedures

5.1 Serial Number
Report the computer serial number to Compaq when requesting information or ordering spare parts. The serial number is located on the bottom of the computer (Figure 5-1).

Figure 5-1. Serial Number Location

5.2 Disassembly Sequence Chart
Use the chart below to determine the section number to be referenced when removing computer components.
Table 5-1 Disassembly Sequence Chart
Section 5.3 Description Preparing the computer for disassembly Battery pack 0 # of Screws Removed

5­2

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Removal and Replacement Procedures

Table 5-1 Disassembly Sequence Chart (Continued)
Section 5.3 (continued) Description MultiBay device Hard drive # of Screws Removed 0 1 to remove hard drive 2 to separate hard drive bezel from hard drive 0 1 loosened 1 loosened 2 2 2 to remove keyboard shield 4 16 0 2 4 4 loosened 0 0 5 0

5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19

Computer feet Memory expansion board Mini PCI communications board Connector cover LED cover Keyboard Display Top cover Speaker assembly Display release assembly TouchPad Fan Processor Disk cell RTC battery System board Modem cable

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Removal and Replacement Procedures

5.3 Preparing the Computer for Disassembly
Perform the following steps before disassembling the computer: 1. Turn off the computer. 2. Disconnect the AC adapter and all external devices. 3. Remove the battery pack by following these steps: a. Turn the computer bottom side up with the left side facing forward. b. Slide and hold the battery release latch 1 toward the back of the computer (Figure 5-2). c. Use the notch in the battery bay to slide the battery pack out of the battery bay 2. d. Remove the battery pack.

Figure 5-2. Removing the Battery Pack

Reverse the above procedures to install the battery pack.

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Removal and Replacement Procedures

4. To remove the battery bezel, slide the bezel straight down (Figure 5-3).

Figure 5-3. Removing the Battery Bezel
Battery Bezel Spare Part Number Information
Battery bezel with silver finish for use with Presario 2800 models Battery bezel with carbon finish for use with Evo Notebook N800c, N800v, and N800w models

286876-001 286877-001

Reverse the above procedures to install the battery bezel.

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Removal and Replacement Procedures

5. Remove the MultiBay device by following these steps: a. Turn the computer bottom side up with the right side facing forward. b. Slide and hold the MultiBay release latch toward the front of the computer 1 (Figure 5-4). c. Use the notch in the MultiBay device to slide the device out of the MultiBay 2. d. Remove the MultiBay device.

Figure 5-4. Removing a MultiBay Device

Reverse the above procedures to install a MultiBay device.

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6. Remove the hard drive by following these steps: a. Turn the computer bottom side up with the left side facing forward. b. Remove the PM3.0 × 4.0 hard drive retention screw 1 (Figure 5-5). c. Slide the hard drive forward 2 to unseat the hard drive connector from the system board. d. Remove the hard drive.

Figure 5-5. Removing the Hard Drive

Maintenance and Service Guide

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Removal and Replacement Procedures

7. Remove the two PM3.0 × 4.0 screws 1 that secure the hard drive bezel to the hard drive (Figure 5-6). 8. Slide the hard drive bezel forward to separate it from the hard drive 2.

Figure 5-6. Removing the Hard Drive Bezel
Hard Drive Bezel Spare Part Number Information
Hard drive bezel with silver finish for use with Presario 2800 models Hard drive bezel with carbon finish for use with Evo Notebook N800c, N800v, and N800w models 286874-001 286875-001

Reverse the above procedure to install the hard drive and hard drive bezel.

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Removal and Replacement Procedures

5.4 Computer Feet
The computer feet are adhesive-backed rubber pads. The computer feet are included in the Miscellaneous Plastics/Hardware Kit, spare part numbers 285261-001 and 286868-001. The computer feet attach to the base enclosure as illustrated in Figure 5-7.

Figure 5-7. Replacing the Computer Feet

5.5 Memory Expansion Board
Memory Expansion Boards Spare Part Number Information
512 MB 256 MB 128 MB 285273-001 285272-001 285271-001

Maintenance and Service Guide

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Removal and Replacement Procedures

1. Prepare the computer for disassembly (Section 5.3). 2. Turn the computer bottom side up with the rear panel facing forward. 3. Remove the PM2.0 × 5.0 screw 1 that secures the memory expansion compartment cover to the base enclosure (Figure 5-8). 4. Lift the front edge of the cover and swing it back 2. 5. Remove the cover 3.

Figure 5-8. Removing the Memory Expansion Compartment Cover

compartment covers are available with Memory expansion2800 models and carbon finish for Evo silver finish for Presario Notebook N800c, N800v, and N800w models. These covers are included in the Miscellaneous Plastics/Hardware Kit, spare part number 285261-001 for Presario 2800 models, and spare part number 286868-001 for Evo Notebook N800c, N800v, and N800w models.

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Removal and Replacement Procedures

6. Spread the memory expansion slot retaining tabs to release the memory expansion board 1. The board tilts up at a 45-degree angle (Figure 5-9). 7. Remove the board by pulling it away from the connector at a 45-degree angle 2.

Figure 5-9. Removing a Memory Expansion Board

Reverse the above procedure to install a memory expansion board.

Maintenance and Service Guide

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Removal and Replacement Procedures

5.6 Mini PCI Communications Board
Mini PCI Communication Boards Spare Part Number Information
U.S. modem International modem 285286-001 285287-001

1. Prepare the computer for disassembly (Section 5.3). 2. Turn the computer bottom side up with the rear panel facing forward.

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Removal and Replacement Procedures

3. Remove the PM2.0 × 5.0 screw 1 that secures the mini PCI compartment cover to the base enclosure (Figure 5-10). 4. Lift the front edge of the cover and swing it back 2. 5. Remove the cover 3.

Figure 5-10. Removing the Mini PCI Communications Slot Cover

compartment covers are available with silver finish Mini PCI2800 models and carbon finish for Evo Notebook for Presario

N800c, N800v, and N800w models. These covers are included in the Miscellaneous Plastics/Hardware Kit, spare part number 285261-001 for Presario 2800 models, and spare part number 286868-001 for Evo Notebook N800c, N800v, and N800w models.

Maintenance and Service Guide

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Removal and Replacement Procedures

6. Disconnect the modem cable from the modem board 1 (Figure 5-11).

The modem cable spare part number is 285268-001.
7. Spread the retaini