HP Pavilion dv1400 Entertainment, Compaq nx4820, Compaq Presario V2400 Maintenance and Service Guide

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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; troubleshooting computer problems; and performing computer disassembly procedures.

© Copyright 2005 Hewlett-Packard Development Company, L.P.

Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation. Intel, Pentium, and Celeron are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Bluetooth is a trademark owned by its proprietor and used by 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.

Maintenance and Service Guide

HP Pavilion dv1400 Entertainment Notebook PC

HP Compaq nx4820 Notebook PC

Compaq Presario V2400 Notebook PC

Second Edition November 2005

First Edition June 2005

Document Part Number: 396166-002

Contents

1 Product Description

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2

1.2 Resetting the Computer. . . . . . . . . . . . . . . . . . . . . . . 1–4

1.3 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . 1–5

1.4 External Components . . . . . . . . . . . . . . . . . . . . . . . . 1–6

1.5 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–36

2 Troubleshooting

2.1 Computer Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1 Accessing Computer Setup . . . . . . . . . . . . . . . . . . . . 2–2 Computer Setup Defaults . . . . . . . . . . . . . . . . . . . . . 2–2 Selecting from the File Menu . . . . . . . . . . . . . . . . . . 2–3 Selecting from the Security Menu . . . . . . . . . . . . . . 2–4 Selecting from the Tools Menu. . . . . . . . . . . . . . . . . 2–5 Selecting from the Advanced Menu . . . . . . . . . . . . . 2–6

2.2 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . 2–7

Maintenance and Service Guide

iii

Contents

3 Illustrated Parts Catalog

3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–1

3.2 Computer Major Components. . . . . . . . . . . . . . . . . . 3–2

3.3 Miscellaneous Plastics Kit . . . . . . . . . . . . . . . . . . . 3–20

3.4 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3–22

3.5 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–25

3.6 Sequential Part Number Listing . . . . . . . . . . . . . . . 3–27

4 Removal and Replacement Preliminaries

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

iv

Maintenance and Service Guide

Contents

5 Removal and Replacement Procedures

5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2 5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 5–3 5.3 Preparing the Computer for Disassembly . . . . . . . . . 5–5 5.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–7 5.5 Computer Feet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–11 5.6 Memory Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–12 5.7 Mini PCI Communications Module . . . . . . . . . . . . 5–15 5.8 Optical Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–18 5.9 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20 5.10 Keyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–26 5.11 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–32 5.12 Base Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–37 5.13 USB/S-Video Controller Board . . . . . . . . . . . . . . 5–44 5.14 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . 5–46 5.15 Speaker Assembly. . . . . . . . . . . . . . . . . . . . . . . . . 5–48 5.16 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–50 5.17 Menu Control Button Board . . . . . . . . . . . . . . . . . 5–52 5.18 Heat Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–55 5.19 Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–57 5.20 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–59 5.21 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–61 5.22 LED Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–68

Maintenance and Service Guide

v

Contents

6 Specifications

AConnector Pin Assignments

BPower Cord Set Requirements

CScrew Listing

DDisplay Component Recycling Index

vi

Maintenance and Service Guide

1

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.

HP Pavilion dv1400, HP Compaq nx4820, and

Compaq Presario V2400

Maintenance and Service Guide

1–1

Product Description

1.1Features

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

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

Intel Celeron M 370 (1.4-GHz) with 400-MHz FSB

Intel Celeron M 360 (1.4-GHz) with 400-MHz FSB

Intel Celeron M 350 (1.3-GHz) with 400-MHz FSB

14.0-inch WXGA (1280 × 768) TFT display with over 16.7 million colors, varying by computer model

80-, 60-, or 40-GB high-capacity hard drive, varying by computer model

256-MB DDR synchronous DRAM (SDRAM) at 266 MHz, expandable to 2.0 GB on models with Intel Mobile Pentium M processors and 1.0 GB on models with Intel Celeron M processors

Microsoft® Windows® XP Home Edition or Windows XP Professional, or Free DOS, varying by computer model

Full-size Windows keyboard with embedded numeric keypad

TouchPad pointing device with on button and dedicated two-way scroll region

Integrated 10/100 BASE-T Ethernet local area network (LAN) network interface card (NIC) with RJ-45 jack

Integrated high-speed 56K modem with RJ-11 jack

1–2

Maintenance and Service Guide

Product Description

Integrated wireless support for Mini PCI IEEE 802.11b and 802.11b/g WLAN device

Support for one Type II PC Card slots, with support for both 32-bit (CardBus) and 16-bit PC Cards

External 65-watt AC adapter with 3-wire power cord

6-cell or 12-cell Li-Ion battery pack

Stereo speakers with volume up and down buttons

Support for the following optical drives:

DVD+RW/R and CD-RW Double Layer Combo Drive with LightScribe

DVD+RW/R and CD-RW Double Layer Combo Drive

DVD/CD-RW Combo Drive

DVD-ROM Drive

Connectors:

External monitor

Universal Serial Bus (USB) v. 2.0

RJ-11 (modem)

RJ-45 (network)

Audio-out (headphone)

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)

Maintenance and Service Guide

1–3

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 Section 5.3, “Preparing the Computer for Disassembly,” for more information).

2.Remove the real time clock (RTC) battery (refer to Section 5.16, “RTC Battery,” for more information).

3.Wait approximately 5 minutes.

4.Replace the RTC battery and reassemble the computer.

5.Connect AC power to the computer. Do not reinsert any battery packs at this time.

6.Turn on the computer.

All passwords and all CMOS settings have been cleared.

1–4

Maintenance and Service Guide

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:

Standby

Hibernation

Setting customization by the user

Hotkeys for setting the level of performance

Battery calibration

Lid switch standby/resume

Power button

Advanced Configuration and Power Management (ACPM) compliance

Maintenance and Service Guide

1–5

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

Product Description

 

 

Table 1-1

 

Front Components

 

HP Pavilion dv1400

 

 

 

Item

Component

Function

 

 

 

1

Speakers (2)

Produce stereo sound.

 

 

 

2

Power light

■ On: Computer is turned on.

 

 

■ Blinking: Computer is in standby.

 

 

■ Off: Computer is off.

 

 

 

3

IDE (Integrated Drive

On or blinking: The internal hard drive or an

 

Electronics) drive light

optical drive is being accessed.

 

 

 

4

Battery light

■ Amber: The battery pack is charging.

 

 

■ Green: The battery pack is fully charged.

 

 

■ Off: The battery pack is discharging

 

 

or not inserted.

 

 

 

5

Display release latch

Opens the computer.

 

 

 

6

Audio-in

Connects an optional monaural

 

(microphone) jack

(single sound channel) microphone.

 

 

 

7

Audio-out

Connect optional headphones or powered

 

(headphone) jack (2)

stereo speakers. Also connect the audio

 

 

function of an audio/video device such as

 

 

a television or VCR.

 

 

 

Maintenance and Service Guide

1–7

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

Product Description

Table 1-2

Front Components

HP Compaq nx4820 and Compaq Presario V2400

Item

Component

Function

 

 

 

1

Speakers (2)

Produce stereo sound.

 

 

 

2

Wireless button light

On: An integrated wireless device is

 

(select models only)

hardware enabled.

 

 

 

3

Power light

■ On: Computer is turned on.

 

 

■ Blinking: Computer is in standby.

 

 

■ Off: Computer is off.

 

 

 

4

IDE (Integrated Drive

■ On or blinking: The internal hard drive

 

Electronics) drive light

or an optical drive is being accessed.

 

 

 

5

Battery light

■ Amber: The battery pack is charging.

 

 

■ Green: The battery pack is fully charged.

 

 

■ Off: The battery pack is discharging

 

 

or not inserted.

 

 

 

6

Display release latch

Opens the computer.

 

 

 

7

Audio-in

Connects an optional monaural

 

(microphone) jack

(single sound channel) microphone.

 

 

 

8

Audio-out

Connect optional headphones or powered

 

(headphone) jack

stereo speakers. Also connect the audio

 

(2 on HP Pavilion

function of an audio/video device such as

 

dv1400 models)

a television or VCR.

 

 

 

Maintenance and Service Guide

1–9

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

Product Description

Table 1-3

Right-Side Components

HP Pavilion dv1400

Item

Component

Function

 

 

 

1

USB connectors (2)

Connect an optional USB device.

 

 

 

2

6-in-1 Digital Media

In Windows, supports digital memory cards.

 

Reader (select models

 

 

only)

 

 

 

 

3

1394 port

Connects an optional 1394a device such

 

(select models only)

as a scanner, digital camera, or digital

 

 

camcorder.

 

 

 

4

6-in-1 Digital Media

On: A digital memory card is being

 

Reader light

accessed.

 

(select models only)

 

 

 

 

5

Optical drive

Supports an optical disc.

 

 

 

6

S-Video-out jack

Connects an optional S-Video device, such

 

(select models only)

as a television, VCR, camcorder, projector,

 

 

or video capture card.

 

 

 

Maintenance and Service Guide

1–11

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

Product Description

Table 1-4

Right-Side Components

HP Compaq nx4820 and Compaq Presario V2400

Item

Component

Function

 

 

 

1

USB connectors (2)

Connect an optional USB device.

 

 

 

2

Digital memory card

In Windows, supports digital memory cards.

 

reader

 

 

(select models only)

 

 

 

 

3

1394 port

Connects an optional 1394 device such

 

(select models only)

as a scanner, digital camera, or digital

 

 

camcorder.

 

 

 

4

Digital memory card

On: A digital memory card is being

 

reader light

accessed.

 

(select models only)

 

 

 

 

5

Optical drive

Supports an optical disc.

 

 

 

6

S-Video-out jack

Connects an optional S-Video device, such

 

(select models only)

as a television, VCR, camcorder, projector,

 

 

or video capture card.

 

 

 

Maintenance and Service Guide

1–13

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

Product Description

Table 1-5

Rear and Left-Side Components

HP Pavilion dv1400

Item

Component

Function

 

 

 

1

Wireless light

On: An integrated wireless device is

 

(select models only)

hardware enabled.

 

 

 

2

Exhaust vent

Provides airflow to cool internal

 

 

components.

 

 

Ä To prevent overheating, do not

 

 

obstruct vents. Do not allow a hard

 

 

surface, such as a printer, or a soft

 

 

surface, such as pillows, thick rugs

 

 

or clothing, to block airflow.

 

 

 

3

Power connector

Connects an AC adapter cable.

 

 

 

4

External monitor port

Connects an optional VGA external monitor

 

 

or projector.

 

 

 

5

Expansion port

Connects the computer to an optional

 

 

expansion base.

 

 

 

6

RJ-45 (network) jack

Connects an optional network cable.

 

 

 

7

RJ-11 (modem) jack

Connects the modem cable.

 

 

 

8

USB connector

Connects an optional USB device.

 

 

 

9

PC Card slot

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.

 

 

 

10

PC Card eject button

Ejects an optional PC Card from the

 

 

PC Card slot.

 

 

 

11

Security cable slot

Attaches an optional security cable to the

 

 

computer.

 

 

 

Maintenance and Service Guide

1–15

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

Maintenance and Service Guide

Product Description

Table 1-6

Rear and Left-Side Components

HP Compaq nx4820 and Compaq Presario V2400

Item

Component

Function

 

 

 

1

Exhaust vent

Provide airflow to cool internal components.

 

 

Ä To prevent overheating, do not

 

 

obstruct vents. Do not allow a hard

 

 

surface, such as a printer, or a soft

 

 

surface, such as pillows, thick rugs

 

 

or clothing, to block airflow.

 

 

 

2

Power connector

Connects an AC adapter cable.

 

 

 

3

External monitor port

Connects an optional VGA external monitor

 

 

or projector.

 

 

 

4

Expansion port

Connects the computer to an optional

 

 

expansion base.

 

 

 

5

RJ-45 (network) jack

Connects an optional network cable.

 

 

 

6

RJ-11 (modem) jack

Connects the modem cable.

 

 

 

7

USB connector

Connects an optional USB device.

 

 

 

8

PC Card slot

Supports an optional Type I or Type II 32-bit

 

 

(CardBus) or 16-bit PC Card.

 

 

 

9

PC Card eject button

Ejects an optional PC Card from the

 

 

PC Card slot.

 

 

 

10

Security cable slot

Attaches an optional security cable to the

 

 

computer.

 

 

 

Maintenance and Service Guide

1–17

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

Product Description

 

 

Table 1-7

 

Keyboard Components

 

HP Pavilion dv1400

 

 

 

Item

Component

Function

 

 

 

1

fn key

Combines with other keys to perform

 

 

system tasks. For example, pressing

 

 

fn+f7 decreases screen brightness.

 

 

 

2

caps lock key

Enables caps lock and turns on the

 

 

caps lock light.

 

 

 

3

f1 to f12 keys (12)

Perform system and application tasks.

 

 

When combined with the fn key, several

 

 

keys and buttons perform additional tasks

 

 

as hotkeys.

 

 

 

4

num lock key

Enables numeric lock, turns on the

 

 

embedded numeric keypad, and turns

 

 

on the num lock light.

 

 

 

5

Keypad keys (15)

In Windows, can be used like the keys

 

 

on an external numeric keypad.

 

 

 

6

Arrow keys

Move the cursor around the screen.

 

 

 

7

Windows

In Windows, displays a shortcut menu

 

applications key

for items beneath the pointer.

 

 

 

8

Windows logo key

In Windows, displays the Windows

 

 

Start menu.

 

 

 

Maintenance and Service Guide

1–19

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

Product Description

Table 1-8

Keyboard Components

HP Compaq nx4820 and Compaq Presario V2400

Item

Component

Function

 

 

 

1

fn key

Combines with other keys to perform

 

 

system tasks. For example, pressing

 

 

fn+f7 decreases screen brightness.

 

 

 

2

caps lock key

Enables caps lock and turns on the

 

 

caps lock light.

 

 

 

3

f1 to f12 keys (12)

Perform system and application tasks.

 

 

When combined with the fn key, several

 

 

keys and buttons perform additional tasks

 

 

as hotkeys.

 

 

 

4

num lock key

Enables numeric lock, turns on the

 

 

embedded numeric keypad, and turns

 

 

on the num lock light.

 

 

 

5

Keypad keys (15)

In Windows, can be used like the keys

 

 

on an external numeric keypad.

 

 

 

6

Arrows keys

Move the cursor around the screen.

 

 

 

7

Windows

In Windows, displays a shortcut menu

 

applications key

for items beneath the pointer.

 

 

 

8

Windows logo key

In Windows, displays the Windows

 

 

Start menu.

 

 

 

Maintenance and Service Guide

1–21

HP Pavilion dv1400 Entertainment, Compaq nx4820, Compaq Presario V2400 Maintenance and Service Guide

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

 

 

Table 1-9

 

 

Top Components, Part 1

 

 

HP Pavilion dv1400

 

 

 

Item

Component

Function

 

 

 

1

Display switch

If the computer is closed while on, turns off

 

 

the display.

 

 

 

2

Power button

When the computer is

 

 

■ Off, press to turn on the computer.

 

 

■ On, briefly press to initiate Hibernation.

■ In Standby, briefly press to resume from Standby.

■ In Hibernation, briefly press to restore from Hibernation.

1–22

Maintenance and Service Guide

Product Description

Table 1-9

Top Components, Part 1

HP Pavilion dv1400 (Continued)

Item

Component

Function

 

 

 

3

DVD button

When the computer is

 

 

■ Off, opens QuickPlay DVD mode.

 

 

■ On in Windows, opens the default

 

 

Windows DVD application.

 

 

■ On in QuickPlay music mode, opens

 

 

QuickPlay DVD mode.

 

 

■ On in QuickPlay DVD mode, displays

 

 

the DVD setup menu.

 

 

■ In Standby, resumes from Standby

 

 

into Windows.

 

 

■ In Hibernation, opens QuickPlay

 

 

DVD mode.

 

 

 

4

Music button

When the computer is

 

 

■ Off, opens QuickPlay music mode.

 

 

■ On in Windows, opens the default

 

 

Windows music application.

 

 

■ On in QuickPlay DVD mode, opens

 

 

QuickPlay music mode.

 

 

■ In Standby, resumes from Standby

 

 

into Windows.

 

 

■ In Hibernation, opens QuickPlay

 

 

music mode.

 

 

 

5

Previous/Rewind

When a disc is in the optical drive:

 

Button

■ Press to play the previous track

 

 

 

 

or chapter.

 

 

■ Press fn+this button to rewind.

 

 

 

6

Play/Pause button

When a disc is in the optical drive and is:

 

 

■ Not playing, press to play the disc.

 

 

■ Playing, press to pause the disc.

 

 

 

Maintenance and Service Guide

1–23

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

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