Compaq NC6400 User Manual
Maintenance and Service
Guide
HP Compaq nc6400 Notebook PC
Document Part Number: 406847-003
March 2007
This guide is a troubleshooting reference used for maintaining
and servicing the computer. It provides comprehensive
information on identifying computer features, components, and
spare parts; troubleshooting computer problems; and performing
computer disassembly procedures.
© Copyright 2006, 2007 Hewlett-Packard Development Company, L.P.
Microsoft, Windows, and Windows Vista are either trademarks or
registered trademarks of Microsoft Corporation in the United States or
other countries. Intel, Celeron, and Core 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. SD Logo is a trademark of its
proprietor. Java is a trademark of Sun Microsystems, Inc. AMD, the AMD
Arrow logo and combinations thereof are trademarks of Advanced Micro
Devices, Inc.
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 Compaq nc6400 Notebook PC
Third Edition: March 2007
First Edition: May 2006
Document Part Number: 406847-003
Safety warning notice
WARNING: To reduce the possibility of heat-related injuries or of
Å
overheating the computer, do not place the computer directly on your
lap or obstruct the computer air vents. Use the computer only on a hard,
flat surface. Do not allow another hard surface, such as an adjoining
optional printer, or a soft surface, such as pillows or rugs or clothing, to
block airflow. Also, do not allow the AC adapter to contact the skin or
a soft surface, such as pillows or rugs or clothing, during operation. The
computer and the AC adapter complies with the user-accessible surface
temperature limits defined by the International Standard for Safety of
Information Technology Equipment (IEC 60950).
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. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–24
2Troubleshooting
2.1 Starting Computer Setup. . . . . . . . . . . . . . . . . . . . . . 2–1
Navigating and selecting in Computer Setup . . . . . . 2–2
Restoring Factory Settings in Computer Setup. . . . . 2–3
File Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Security Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Diagnostics Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
System Configuration Menu . . . . . . . . . . . . . . . . . . . 2–7
2.2 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . 2–10
Maintenance and Service Guide iv
Contents
3 Illustrated Parts Catalog
3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 Computer Major Components. . . . . . . . . . . . . . . . . . 3–2
3.3 Display Assembly Components . . . . . . . . . . . . . . . 3–16
3.4 Plastics Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–18
3.5 Cable Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19
3.6 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3–20
3.7 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 3–21
3.8 Sequential Part Number Listing . . . . . . . . . . . . . . . 3–23
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 . . . . . . . . . . . . . 4–7
v Maintenance and Service Guide
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 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . 5–12
5.7 External Memory Module . . . . . . . . . . . . . . . . . . . . 5–14
5.8 Mini Card WLAN Module . . . . . . . . . . . . . . . . . . . 5–17
5.9 MultiBay II Device . . . . . . . . . . . . . . . . . . . . . . . . . 5–21
5.10 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–23
5.11 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–28
5.12 Internal Memory Module . . . . . . . . . . . . . . . . . . . 5–29
5.13 Modem Module. . . . . . . . . . . . . . . . . . . . . . . . . . . 5–31
5.14 Mini Card WWAN Module . . . . . . . . . . . . . . . . . 5–33
5.15 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–35
5.16 Power Button Board . . . . . . . . . . . . . . . . . . . . . . . 5–37
5.17 Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–38
5.18 Heat Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–39
5.19 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–42
5.20 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–44
5.21 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–55
5.22 PC Card/Digital Media Board. . . . . . . . . . . . . . . . 5–61
5.23 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–64
5.24 Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–66
5.25 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–68
5.26 MultiBay II Eject Assembly . . . . . . . . . . . . . . . . . 5–77
Contents
Maintenance and Service Guide vi
Contents
6 Specifications
A Screw Listing
B Backup and Recovery in Windows Vista
C Backup and Recovery in Windows XP
D Display Component Recycling
E Connector Pin Assignments
F Power Cord Set Requirements
Index
vii Maintenance and Service Guide
Product Description
The HP Compaq nc6400 Notebook PC offers advanced
modularity, Intel® Core™ Duo, Core Solo, and Celeron®
processors, and extensive multimedia support.
1
HP Compaq nc6400 Notebook PC
Maintenance and Service Guide 1–1
Product Description
1.1 Fe at ur es
■ The following processors, varying by computer model:
❏ Intel Core Duo T7600 (2.33-GHz) processor
❏ Intel Core Duo T7400 (2.16-GHz) processor
❏ Intel Core Duo T7200 (2.00-GHz) processor
❏ Intel Core Duo T5600 (1.83-GHz) processor
❏ Intel Core Duo T5500 (1.66-GHz) processor
❏ Intel Core Duo T2300E (1.66-GHz) processor
❏ Intel Core Duo T2600 (2.17-GHz) processor
❏ Intel Core Duo T2500 (2.00-GHz) processor
❏ Intel Core Duo T2400 (1.83-GHz) processor
❏ Intel Core Duo T2300 (1.67-GHz) processor
❏ Intel Core Solo T1300 (1.66-GHz) processor
❏ Intel Celeron M 440 (1.80-GHz) processor
❏ Intel Celeron M 430 (1.73-GHz) processor
■ 14.1-inch, WXGA+, TFT (1440 × 900) and 14.1-inch,
WXGA, TFT (1440 × 900) display, with over 16.8 million
colors, varying by computer model
■ 120-, 100-, 80-, 60-, and 40-GB high-capacity hard drive,
varying by computer model
■ 256-MB DDR2 synchronous DRAM (SDRAM) at 533 MHz
and 667 MHz, expandable to 4.0 GB
■ Microsoft® Windows Vista™ Business, Windows Vista
Home Basic, and Windows® XP Professional
■ Full-size Windows keyboard with numeric keypad
■ TouchPad and pointing stick pointing devices, including a
dedicated vertical scroll region
■ Integrated 10 Base-T/100 Base-TX Ethernet local area
network (LAN) network interface card (NIC) with RJ-45 jack
1–2 Maintenance and Service Guide
Product Description
■ Integrated high-speed 56K modem with RJ-11 jack
■ Integrated wireless support for Mini Card IEEE 802.11a/b/g
or 802.11b/g Wireless LAN (WLAN) device
■ Support for one Type I or Type II PC Card slot, with support
for both 32-bit (CardBus) and 16-bit PC Cards, varying by
computer model
■ External 90- and 65-watt AC adapters with 3-wire power
cord, varying by computer model
■ 8-cell and 4-cell Li-Ion batteries
■ Stereo speakers
■ Volume up, volume mute, and volume down buttons
■ Support for the following optical drives:
❏ DVD±RW and CD-RW Double-Layer Combo Drive
❏ DVD±RW and CD-RW Combo Drive
❏ DVD-ROM drive
■ Connectors:
❏ Accessory battery
❏ Audio-in (microphone)
❏ Audio-out (headphone)
❏ Digital Media Slot
❏ Docking connector
❏ External monitor
❏ IEEE 1394
❏ RJ-11 (modem)
❏ RJ-45 (network)
❏ S-Video-out
❏ SmartPower
❏ Three Universal Serial Bus (USB) v. 2.0
Maintenance and Service Guide 1–3
Product Description
1.2 Resetting the Computer
If the computer you are servicing has an unknown password,
follow the steps below to reset the password. These steps also
clear CMOS.
The following steps will not clear an unknown password if the
✎
stringent security option has been enabled in the BIOS. If
stringent security is enabled, the system board must be replaced
to reset an unknown password. Refer to Section 5.21, “Top
Cover,” for more information on replacing the system board.
Before replacing the system board, perform the steps below to
make sure stringent security has been properly enabled.
Enabling stringent security provides enhanced protection for the
power-on password and administrator password and other forms
of power-on authorization. Stringent security is enabled/disabled
by accessing the Password Options menu in the Computer Setup
utility.
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 5.11, “RTC Battery,” for more information on
removing and replacing the RTC battery).
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
batteries at this time.
6. Turn on the computer.
All passwords and all CMOS settings have been cleared.
1–4 Maintenance and Service Guide
1. 3 Powe r M a n a g e m e n t
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
Product Description
Maintenance and Service Guide 1–5
Product Description
1.4 External Components
The external components on the front of the computer are shown
below and described in Table 1-1.
Front Components
Table 1 -1
Front Components
Item Component Function
1 Wireless light On: An integrated wireless device, such as
a wireless local area network (LAN) device
and/or a Bluetooth® device, is turned on.
2Power light ■ On: The computer is on.
■ Blinking: The computer is in standby.
■ Blinking rapidly: An HP Smart AC
Adapter with a higher power rating
should be connected.
■ Off: The computer is off or in hibernation.
1–6 Maintenance and Service Guide
Table 1 -1
Product Description
Front Components
(Continued)
Item Component Function
3 Battery light ■ Amber: A battery is charging.
■ Green: A battery is close to full charge
capacity.
■ Blinking amber: A battery that is the only
available power source has reached a
low-battery condition. When the battery
reaches a critical low-battery condition,
the battery light begins blinking more
quickly.
■ Off: If the computer is connected to an
external power source, the light is turned
off when all batteries in the computer are
fully charged. If the computer is not
connected to an external power source,
the light is turned off until the battery
reaches a low-battery condition.
4Drive light ■ Blinking green: The hard drive or optical
drive is being accessed.
■ Amber: HP Mobile Data Protection has
temporarily parked the hard drive.
5 Infrared port Provides wireless communication between
6 Digital Media Slot Supports Secure Digital (SD) Memory
7 Stereo speakers (2) Produce stereo sound.
the computer and an optional
IrDA-compliant device.
Cards and MultiMediaCards (MMC).
8 Display release latch Opens the computer.
Maintenance and Service Guide 1–7
Product Description
The external components on the right side of the computer are
shown below and described in Table 1-2.
Right-Side Components
1–8 Maintenance and Service Guide
Product Description
Table 1 -2
Right-Side Components
Item Component Function
1 Smart card slot Supports optional smart cards and Java™
Cards.
2 MultiBay II device Supports an optical disc. The type of optical
drive varies by computer model.
3 USB port Connects USB 1.1- and 2.0-compliant
4 RJ-45 (network) jack Connects an optional network cable.
5 RJ-11 (modem) jack Connects the modem cable.
devices to the computer using a standard
USB cable, or connects an optional
External MultiBay II to the computer. The
MultiBay II must also be connected to an
external power source.
Maintenance and Service Guide 1–9
Product Description
The external components on the left side of the computer are
shown below and described in Table 1-3.
Left-Side Components
1–10 Maintenance and Service Guide
Product Description
Table 1 -3
Left-Side Components
Item Component Function
1 Exhaust vent Provides airflow to cool internal
components.
2 USB ports (2) Connect USB 1.1- and 2.0-compliant
devices to the computer using a standard
USB cable, or connect an optional External
MultiBay II to the computer. The MultiBay II
must also be connected to an external
power source.
3Audio-in
(microphone) jack
4Audio-out
(headphone) jack
5 PC Card slot Supports optional Type I or Type II 32-bit
Connects an optional computer headset
microphone, stereo array microphone, or
monaural microphone.
Produces computer sound when connected
to optional power stereo speakers,
headphones, ear buds, a headset, or
television audio.
(CardBus) or 16-bit PC Cards.
Maintenance and Service Guide 1–11
Product Description
The external components on the rear panel of the computer are
shown below and described in Table 1-4.
Rear Panel Components
1–12 Maintenance and Service Guide
Product Description
Table 1-4
Rear Panel Components
Item Component Function
1 Security cable slot Attaches an optional security cable to the
computer.
Security solutions are designed to
Ä
act as deterrents. These deterrents
may not prevent a product from
being mishandled or stolen.
2 Battery bay Holds a battery.
3 Smart adapter power
connector
4 S-Video-out jack Connects an optional S-Video device,
5 External monitor port Connects an optional VGA external
Connects an AC adapter or an optional
power adapter.
such as a television, VCR, camcorder,
projector, or video capture card.
monitor or projector.
Maintenance and Service Guide 1–13
Product Description
The standard keyboard components of the computer are shown
below and described in Table 1-5.
Standard Keyboard Components
1–14 Maintenance and Service Guide
Product Description
Table 1-5
Standard Keyboard Components
Item Component Function
1 fn key Executes frequently used system
functions when pressed in combination
with a function key or the esc key.
2 caps lock key Enables caps lock and turns on the caps
3 f1 to f12 keys (12) Perform system and application tasks.
4 num lock key Enables numeric lock, turns on the
5 Embedded keypad In Windows, can be used like the keys
6 Arrow keys Moves the cursor around the screen.
7Windows
applications key
8 Windows logo key In Windows, displays the Windows
lock light.
When combined with the fn key, several
keys and buttons perform additional tasks
as hotkeys.
embedded numeric keypad, and turns
on the num lock light.
on an external numeric keypad.
In Windows, displays a shortcut menu
for items beneath the pointer.
Start menu.
Maintenance and Service Guide 1–15
Product Description
The computer top components are shown below and described in
Table 1-6.
Top Components
1–16 Maintenance and Service Guide
Table 1-6
Top Components
Item Component Function
1 Power button When the computer is:
■ Off, press to turn on the computer.
■ On, briefly press to initiate hibernation.
■ In standby, briefly press to resume from
standby.
■ In hibernation, briefly press to restore
from hibernation.
If the system has stopped responding and
Windows shutdown procedures cannot be
used, press and hold for 5 seconds to turn
off the computer.
Product Description
2 Info Center button Launches Info Center, which enables you
3 Wireless button Turns the wireless functionality on or off,
4 Presentation button Turns on the presentation feature.
5 Volume mute button Mutes or restores speaker volume.
6 Volume down button Decreases speaker volume.
7 Volume up button Increases speaker volume.
Maintenance and Service Guide 1–17
to open various software solutions.
but does not create a wireless connection.
To establish a wireless connection,
✎
a wireless network must already be
set up.
Product Description
The computer top components are shown below and described in
Table 1-7.
Top Components
1–18 Maintenance and Service Guide
Product Description
Table 1-7
Top Components
Item Component Function
1Power light ■ On: The computer is on.
■ Blinking: The computer is in standby.
■ Blinking rapidly: An AC adapter with a
higher power rating should be
connected.
■ Off: The computer is off or in
hibernation.
2 Wireless light On: An integrated wireless device, such as
a wireless local area network (LAN) device
and/or a Bluetooth® device, is turned on.
3 Caps lock light On: caps lock is on.
4 Num lock light On: num lock or the numeric keypad is on.
5 Fingerprint reader Allows a fingerprint logon to Windows
instead of using a password.
Maintenance and Service Guide 1–19
Product Description
The computer pointing device components are shown below and
described in Table 1-8.
Pointing Device Components
1–20 Maintenance and Service Guide
Product Description
Table 1-8
Pointing Device Components
Item Component Function
1 Pointing stick Moves the pointer and selects or activates
items on the screen.
2 Pointing stick buttons Function like the left, middle, and right
buttons on an external mouse.
3 TouchPad Moves the pointer and selects or activates
4 TouchPad buttons Function like the left, middle, and right
5 TouchPad scroll zone Scrolls up or down.
items on the screen. Can be set to perform
other mouse functions, such as scrolling,
selecting, and double-clicking.
buttons on an external mouse.
Maintenance and Service Guide 1–21
Product Description
The external components on the bottom of the computer are
shown below and described in Table 1-9.
Bottom Components
Table 1 - 9
Bottom Components
Item Component Function
1 Battery bay Holds the battery.
2 Docking connector
(full-featured models only)
3 Battery release latches (2) Release the battery from the battery
4 Accessory battery
connector
1–22 Maintenance and Service Guide
Connects the computer to an optional
docking device.
bay.
Connects an optional HP Ultra-Capacity
Battery or HP Extended Life Battery.
Table 1 - 9
Product Description
Bottom Components
(Continued)
Item Component Function
5 Exhaust vents Provides airflow to cool internal
components.
6 Hard drive bay Holds the primary hard drive.
7 Memory module
compartment
8 Bluetooth compartment Contains a Bluetooth device (select
9 Serial number Identifies the computer. This number is
10 Mini Card compartment Holds an optional wireless LAN device.
Contains one memory slot that supports
replaceable memory modules.
computer models only).
needed when contacting customer
support.
To prevent an unresponsive
Ä
system and the display of a
warning message, install only a
Mini Card device authorized for
use in your computer by the
governmental agency that
regulates wireless devices in
your country or region. If you
install a device and then receive
a warning message, remove
the device to restore computer
functionality. Then contact
technical support by selecting
Start > Help and Support >
Contact support.
Maintenance and Service Guide 1–23
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