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
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
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
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
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
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
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 |
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 |