HP Compaq nc4200 Maintenance and Service Guide
Maintenance and Service
Guide
HP Compaq nc4200 Notebook PC
Document Part Number: 444624-002
April 2007
This guide is a troubleshooting reference used for maintaining
and servicing the notebook. It provides comprehensive
information on identifying notebook features, components, and
spare parts; troubleshooting notebook problems; and performing
notebook disassembly procedures.
© Copyright 2006, 2007 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. SD Logo is a trademark of its
proprietor.
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 nc4200 Notebook PC
Second Edition: April 2007
First Edition: December 2006
Document Part Number: 444624-002
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 Notebook . . . . . . . . . . . . . . . . . . . . . . . 1–4
1.3 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.4 External Components . . . . . . . . . . . . . . . . . . . . . . . . 1–6
1.5 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–20
2Troubleshooting
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 v
Contents
3 Software Update and Recovery
Downloading a BIOS Update . . . . . . . . . . . . . . . . . . 3–3
Installing a BIOS Update . . . . . . . . . . . . . . . . . . . . . 3–4
Recovering the BIOS . . . . . . . . . . . . . . . . . . . . . . . . 3–5
4 Illustrated Parts Catalog
4.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 4–1
4.2 Notebook Major Components. . . . . . . . . . . . . . . . . . 4–2
4.3 Miscellaneous Plastics/
Hardware Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–10
4.4 Miscellaneous Cable Kit . . . . . . . . . . . . . . . . . . . . . 4–11
4.5 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 4–12
4.6 Sequential Part Number Listing . . . . . . . . . . . . . . . 4–14
5 Removal and Replacement Preliminaries
5.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
5.2 Service Considerations . . . . . . . . . . . . . . . . . . . . . . . 5–2
Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2
Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 5–2
5.3 Preventing Damage to Removable Drives . . . . . . . . 5–3
5.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . 5–4
5.5 Packaging and Transporting Precautions . . . . . . . . . 5–5
5.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 5–6
5.7 Grounding Equipment and Methods . . . . . . . . . . . . . 5–7
vi Maintenance and Service Guide
6 Removal and Replacement Procedures
6.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2
6.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 6–3
6.3 Preparing the Notebook for Disassembly . . . . . . . . . 6–5
6.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–6
6.5 Notebook Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–9
6.6 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . 6–10
6.7 External Memory Module . . . . . . . . . . . . . . . . . . . . 6–12
6.8 TPM Security Card . . . . . . . . . . . . . . . . . . . . . . . . . 6–15
6.9 Keyboard Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–16
6.10 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–18
6.11 Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–22
6.12 Heat Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–23
6.13 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–26
6.14 Internal Memory Module . . . . . . . . . . . . . . . . . . . 6–28
6.15 Mini PCI Communications Card. . . . . . . . . . . . . . 6–30
6.16 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 6–32
6.17 Button Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–38
6.18 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–42
6.19 TouchPad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–46
6.20 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–50
6.21 Infrared Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–52
6.22 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–54
6.23 Modem Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–57
6.24 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–59
Contents
Maintenance and Service Guide vii
Contents
7 Specifications
A Connector Pin Assignments
B Power Cord Set Requirements
C Screw Listing
Index
viii Maintenance and Service Guide
1
Product Description
The HP Compaq nc4200 Notebook PC offers advanced
modularity, Intel® Pentium® M and Celeron® M processors, and
extensive multimedia support.
HP Compaq nc4200 Notebook PC
Maintenance and Service Guide 1–1
Product Description
1.1 Fe a t ur es
■ Intel Pentium M 2.13-, 2.00-, 1.86-, 1.73-, or 1.60-GHz
processors, or Intel Celeron M 1.50-GHz processor, varying
by notebook model
■ 12.1-inch, XGA, TFT (1024 × 768) display with over
16.8 million colors
■ 80-, 60-, or 40-GB high-capacity hard drive, varying by
notebook model
■ 256-MB DDR2 synchronous DRAM (SDRAM) at 400 MHz
and 533MHz, expandable to 2.0 GB
■ Microsoft® Windows® XP Home Edition or Windows XP
Professional, varying by notebook model
■ Full-size Windows keyboard with embedded numeric keypad
■ TouchPad and pointing stick pointing devices, including a
dedicated vertical scroll region
■ Integrated 10Base-T/100Base-T/1000Base-T Ethernet local
area network (LAN) network interface card (NIC) with
RJ-45 jack
■ Integrated high-speed 56K modem with RJ-11 jack
■ Integrated wireless support for Mini PCI IEEE 802.11b/g and
802.11a/b/g 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
1–2 Maintenance and Service Guide
Product Description
■ External 65-watt AC adapter with 3-wire power cord
■ 6-cell Li-Ion battery pack, varying by notebook model
■ Audio speaker
■ Volume up, volume mute, and volume down buttons
■ Connectors:
❏ Infrared
❏ Audio-out (headphone)
❏ Audio-in (microphone)
❏ Universal Serial Bus (USB) v. 2.0 (3 ports, 1 powered)
❏ Power
❏ External monitor
❏ RJ-45 (network)
❏ RJ-11 (modem)
❏ S-Video-out
❏ PC Card
❏ SD Card
❏ Primary battery
❏ Travel battery
❏ Docking connector
Maintenance and Service Guide 1–3
Product Description
1.2 Resetting the Notebook
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 notebook for disassembly (refer to Section 4.3,
“Miscellaneous Plastics/ Hardware Kit,” for more
information).
2. Remove the real-time clock (RTC) battery (refer to
Section 6.24, “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 notebook.
5. Connect AC power to the notebook. Do not reinsert any
battery packs at this time.
6. Turn on the notebook.
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 notebook comes with power management features that
extend battery operating time and conserve power. The
notebook 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/standby 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 notebook are shown
below and described in Table 1-1.
Front Components
Tabl e 1-1
Front Components
Item Component Function
1 Wireless light On: One or more optional internal wireless
devices, such as a WLAN device and/or
Bluetooth® device, are turned on.
2 Power/standby light ■ Green: The notebook is on.
■ Blinking green: The notebook is
in standby mode.
1–6 Maintenance and Service Guide
Tabl e 1-1
Product Description
Front Components
(Continued)
Item Component Function
3Battery light ■ Amber: A battery pack is charging.
■ Green: A battery pack is close to full
charge capacity.
■ Blinking amber: A battery pack 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 notebook is connected to
an external power source, the light
is turned off when all batteries in the
notebook are fully charged. If the
notebook is not connected to an external
power source, the light is turned off until
the battery reaches a low-battery
condition, when the light begins blinking
amber.
4 Integrated Drive
Electronics (IDE) drive
light
5 Fast IrDA (select
models only)
On: A drive in the hard drive bay is being
accessed.
Links the notebook to an optional remote
control.
6 Bluetooth module Sends and receives Bluetooth device
signals.
7 Display release button Opens the notebook.
Maintenance and Service Guide 1–7
Product Description
The external components on the right side of the notebook are
shown below and described in Table 1-2.
Right-Side Components
1–8 Maintenance and Service Guide
Tabl e 1-2
Right-Side Components
Item Component Function
Product Description
1Audio-out
(headphone) jack
2 Audio-in (microphone)
jack
3 Powered USB port Connects USB 1.1- or 2.0-compliant
4 PC Card slot eject
button
5 PC Card slot Supports optional Type I, Type II, 32-bit
6 SD Card slot Accepts SD (Secure Digital) Memory Cards
Connects an optional headphone or
powered stereo speakers. Also connects
the audio function of an audio/video device,
such as a television or VCR.
Connects an optional monaural (single
sound channel) or stereo (dual sound
channel) microphone.
devices to the notebook using a standard
USB cable, or connects an optional external
MultiBay or external MultiBay II to
the notebook. This USB port is a powered
port that can be used without external
power.
Ejects PC Cards from the PC Card slot.
(CardBus), or 16-bit PC Cards.
or MultiMediaCards.
Maintenance and Service Guide 1–9
Product Description
The external components on the left side of the notebook are
shown below and described in Table 1-3.
Left-Side Components
Tabl e 1-3
Left-Side Components
Item Component Function
1 Security cable slot Attaches an optional security cable to the
notebook.
The purpose of security solutions is
✎
to act as deterrents. These
deterrents may not prevent a product
from being mishandled or stolen.
2 Vent Enables airflow to cool internal
components.
To prevent overheating, do not
Ä
obstruct vents. Using the notebook
on a soft surface, such as a pillow,
blanket, rug, or thick clothing, may
block airflow.
1–10 Maintenance and Service Guide
Tabl e 1-3
Product Description
Left-Side Components
(Continued)
Item Component Function
3 Wireless button (select
models only)
4 USB port Connects a USB 1.1- and 2.0-compliant
5 Info Center button Enables you to view a list of commonly
6 Power switch When the notebook is
Turns the wireless functionality of the
WLAN or Bluetooth device on or off, but
does not establish a connection.
To establish a wireless connection,
✎
a wireless network must already be
set up.
device to the notebook using a standard
USB cable.
used software solutions.
■ Off, slide toward the front of the
notebook and release to turn on the
notebook.
■ In standby, slide toward the front of the
notebook and release to exit standby.
■ In hibernation, slide toward the front of
the notebook and release to exit
hibernation.
If the notebook has stopped responding
and Microsoft Windows shutdown
procedures cannot be used, slide toward
the front of the notebook and hold for
4 seconds to turn off the notebook.
7 Speaker Enables you to listen to music and hear
audio alerts and signals from programs.
Maintenance and Service Guide 1–11
Product Description
The external components on the rear panel of the notebook are
shown below and described in Table 1-4.
Rear Panel Components
1–12 Maintenance and Service Guide
Product Description
Tabl e 1-4
Rear Panel Components
Item Component Function
1 USB port Connects USB 1.1- and 2.0-compliant
devices to the notebook using a standard
USB cable.
2 RJ-11 (modem) jack Connects a modem cable. Enabled with
56K connectivity.
3 RJ-45 (network) jack Connects a network cable. Enabled with
10/100/1000BaseT connectivity.
4 Power connector Connects an AC adapter, an optional
AC adapter, or an optional power cable.
5 External monitor port Connects an optional VGA external monitor
or projector.
6 S-Video-out jack Is a 7-pin, dual-purpose jack.
It connects an optional S-Video device,
such as a television, VCR, camcorder,
overhead projector, or video capture card,
with an optional, standard (4-pin) S-Video
cable.
The extra 3 pins also enable an optional
S-Video-to-composite adapter to be used
with the notebook.
Maintenance and Service Guide 1–13
Product Description
The standard keyboard components of the notebook 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 Function keys (12) Perform system and application tasks.
When combined with the fn key, the
function keys f3, f4, and f8 through f11
perform additional tasks as hotkeys.
2 caps lock key Enables caps lock and turns on the caps
3 fn key Executes frequently used system
4 Windows logo key Displays the Microsoft Windows
5Windows
applications key
6 Arrow keys Moves the cursor around the screen.
7 Embedded numeric
keypad
8 num lock key Enables numeric lock, turns on the
lock light.
functions when pressed in combination
with a function key or the esc key.
Start menu.
Displays a shortcut menu for items
beneath the pointer.
Can be used like an external numeric
keypad.
embedded numeric keypad, and turns
on the num lock light.
Maintenance and Service Guide 1–15
Product Description
The notebook 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
Product Description
1 Left and right TouchPad
buttons (2)
2 TouchPad Moves the pointer. Can be set to perform
3 Left and right pointing
stick buttons (2)
4 Pointing stick Moves the pointer.
5 Vent Enables airflow to cool internal
6 Presentation Mode
button
7 Volume mute button Mutes or restores volume.
8 Volume down button Decreases notebook sound.
9 Volume up button Increases notebook sound.
10 TouchPad scroll zone Scrolls upward or downward.
Function like the left and right buttons on
an external mouse.
other mouse functions, such as scrolling,
selecting, and double-clicking.
Function like the left and right buttons on
an external mouse.
components.
Turns on Presentation mode.
Maintenance and Service Guide 1–17
Product Description
The external components on the bottom of the notebook are
shown below and described in Table 1-7.
Bottom Components
1–18 Maintenance and Service Guide
Product Description
Table 1 - 7
Bottom Components
Item Component Function
1 Base enclosure cover Covers the display cable and connector.
2 Docking connector Connects the notebook to an optional
docking device.
3 Travel battery connector Connects an optional travel battery.
4 Vents (3) Enable airflow to cool internal
components.
5 Primary battery bay Holds the primary battery pack.
6 Primary battery release
latch
7 Hard drive cover Holds the primary hard drive.
8 Expansion memory
module compartment
Releases the primary battery pack from
the battery bay.
Contains one expansion memory
module slot.
Maintenance and Service Guide 1–19
Product Description
1. 5 D e s i g n O v e r vi ew
This section presents a design overview of key parts and features
of the notebook. Refer to Chapter 4, “Illustrated Parts Catalog,”
to identify replacement parts, and Chapter 6, “Removal and
Replacement Procedures,” for disassembly steps.
The system board provides the following device connections:
■ Audio
■ Display
■ Hard drive
■ Intel Pentium M and Celeron M processors
■ Keyboard
■ Memory module
■ Mini PCI communications devices
■ PC Card
■ Pointing stick
■ To uc hP ad
■ Trusted platform module (TPM) security module
CAUTION: To properly ventilate the notebook, allow at least a 7.6-cm
Ä
(3-inch) clearance on the left and right sides of the notebook.
The notebook uses an electric fan for ventilation. The fan is
controlled by a temperature sensor and is designed to be turned
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 notebook.
1–20 Maintenance and Service Guide
Troubleshooting
WARNING: Only authorized technicians trained by HP should repair
Å
this equipment. All troubleshooting and repair procedures are detailed
to allow only subassembly-/module-level repair. Because of the
complexity of the individual boards and subassemblies, do not attempt
to make repairs at the component level or modifications to any printed
wiring board. 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
Computer Setup is a preinstalled, ROM-based utility that can be
used even when the operating system is not working or will not
load. If the operating system is working, the notebook restarts the
operating system after you exit Computer Setup.
Pointing devices are not supported in Computer Setup; you
✎
must use the keyboard to navigate and make selections.
2
The menu tables later in this chapter provide an overview of
Computer Setup options.
Maintenance and Service Guide 2–1
Troubleshooting
Accessing Computer Setup
The information and settings in Computer Setup are accessed
from the File, Security, To ols, and Advanced menus.
1. Open Computer Setup by turning on or restarting the
notebook. Press
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, Tools, or Advanced menu.
3. To exit Computer Setup, choose one of the following:
❏ To exit without saving any changes, use the arrow keys to
select File > Ignore changes and exit, and then follow
the instructions on the screen.
❏ To exit and save all the settings you have entered, use the
arrow keys to select File > Save changes and exit, and
then follow the instructions on the screen.
Your preferences are set when you exit Computer Setup and take
effect when the notebook restarts.
f10 while the F10 = Based Setup message is
Computer Setup Defaults
To return all settings in Computer Setup to the values that were
set at the factory:
1. Open Computer Setup by turning on or restarting the
notebook. Press
displayed in the lower-left corner of the screen.
❏ To change the language, press f2.
❏ To view navigation information, press f1.
2. Use the arrow keys to select File > Restore defaults.
3. Select the Restore Defaults check box.
2–2 Maintenance and Service Guide
f10 while the F10 = Based Setup message is
Troubleshooting
4. To confirm the restoration, press f10.
5. Select File > Save changes and exit, and then follow the
instructions on the screen.
When the computer restarts, the factory settings are restored, and
any identification information you have entered is saved.
Selecting from the File Menu
Table 2 - 1
File Menu
Select To Do This
System Information ■ View identification information about the
notebook and any battery packs in the system.
■ View specification information about the
processor, memory and cache size, video
revision, keyboard controller version, and
system ROM.
Save to floppy Save system configuration settings to a diskette.
Restore from floppy Restore system configuration settings from a
diskette.
Restore defaults Replace configuration settings in Computer Setup
with factory default settings. (Identification
information is retained.)
Ignore changes and exit Cancel changes entered during the current
session. Then exit and restart the notebook.
Save changes and exit Save changes entered during the current session.
Then exit and restart the notebook. The changes
you save are in effect when the notebook restarts.
Maintenance and Service Guide 2–3
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