HP COMPAQ NC4200 Manual

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
ÅWARNING: To reduce the possibility of heat-related injuries or of
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).

Maintenance and Service Guide v
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

vi Maintenance and Service Guide
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

Contents
Maintenance and Service Guide vii
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

viii Maintenance and Service Guide
Contents
7 Specifications
A Connector Pin Assignments
B Power Cord Set Requirements
C ScrewListing
Index

Maintenance and Service Guide 1–1
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

1–2 Maintenance and Service Guide
Product Description
1.1 F e a t u r e s
■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

Product Description
Maintenance and Service Guide 1–3
■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

1–4 Maintenance and Service Guide
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.

Product Description
Maintenance and Service Guide 1–5
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

1–6 Maintenance and Service Guide
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
Table 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.

Product Description
Maintenance and Service Guide 1–7
3Batterylight ■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
On: A drive in the hard drive bay is being
accessed.
5 Fast IrDA (select
models only)
Links the notebook to an optional remote
control.
6 Bluetooth module Sends and receives Bluetooth device
signals.
7 Display release button Opens the notebook.
Table 1-1
Front Components
(Continued)
Item Component Function

1–8 Maintenance and Service Guide
Product Description
The external components on the right side of the notebook are
shown below and described in Table 1-2.
Right-Side Components

Product Description
Maintenance and Service Guide 1–9
Table 1-2
Right-Side Components
Item Component Function
1Audio-out
(headphone) jack
Connects an optional headphone or
powered stereo speakers. Also connects
the audio function of an audio/video device,
such as a television or VCR.
2 Audio-in (microphone)
jack
Connects an optional monaural (single
sound channel) or stereo (dual sound
channel) microphone.
3 Powered USB port Connects USB 1.1- or 2.0-compliant
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.
4 PC Card slot eject
button
Ejects PC Cards from the PC Card slot.
5 PC Card slot Supports optional Type I, Type II, 32-bit
(CardBus), or 16-bit PC Cards.
6 SD Card slot Accepts SD (Secure Digital) Memory Cards
or MultiMediaCards.

1–10 Maintenance and Service Guide
Product Description
The external components on the left side of the notebook are
shown below and described in Table 1-3.
Left-Side Components
Table 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.
ÄTo prevent overheating, do not
obstruct vents. Using the notebook
on a soft surface, such as a pillow,
blanket, rug, or thick clothing, may
block airflow.

Product Description
Maintenance and Service Guide 1–11
3 Wireless button (select
models only)
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.
4 USB port Connects a USB 1.1- and 2.0-compliant
device to the notebook using a standard
USB cable.
5 Info Center button Enables you to view a list of commonly
used software solutions.
6 Power switch When the notebook is
■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.
Table 1-3
Left-Side Components
(Continued)
Item Component Function

1–12 Maintenance and Service Guide
Product Description
The external components on the rear panel of the notebook are
shown below and described in Table 1-4.
Rear Panel Components

Product Description
Maintenance and Service Guide 1–13
Table 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.