HP Compaq nx6115 Manual

Maintenance and Service
Guide
HP Compaq nx6115 and nx6125
Notebook PCs
Document Part Number: 389608-001
August 2005
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 2005 Hewlett-Packard Development Company, L.P.
Microsoft and Windows are U.S. registered trademarks of Microsoft
Corporation. AMD, Sempron, Turion, and combinations thereof, are
trademarks of Advanced Micro Devices, Inc. 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 Compaq nx6115 and nx6125 Notebook PCs
First Edition August 2005
Document Part Number: 389608-001

Maintenance and Service Guide iii
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. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–22
2 Troubleshooting
2.1 Computer Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.2 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . 2–7
3 Software Update and Recovery
3.1 Software Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 System Recovery. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
4 Illustrated Parts Catalog
4.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 4–1
4.2 Notebook Major Components. . . . . . . . . . . . . . . . . . 4–2
4.3 Miscellaneous Plastics Kit . . . . . . . . . . . . . . . . . . . 4–12
4.4 Miscellaneous Cable Kit . . . . . . . . . . . . . . . . . . . . . 4–13
4.5 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 4–14
4.6 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 4–16
4.7 Sequential Part Number Listing . . . . . . . . . . . . . . . 4–18
5 Removal and Replacement Preliminaries
5.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
5.2 Service Considerations . . . . . . . . . . . . . . . . . . . . . . . 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

iv Maintenance and Service Guide
Contents
5.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 5–6
5.7 Grounding Equipment and Methods . . . . . . . . . . . . . 5–7
6 Removal and Replacement Procedures
6.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
6.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 6–2
6.3 Preparing the Notebook for Disassembly . . . . . . . . . 6–4
6.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–6
6.5 Notebook Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–9
6.6 Bluetooth Board . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–10
6.7 Memory Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–12
6.8 Optical Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–14
6.9 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–16
6.10 Power Button Board . . . . . . . . . . . . . . . . . . . . . . . 6–20
6.11 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–22
6.12 Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–26
6.13 Heat Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–27
6.14 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–30
6.15 Button Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–32
6.16 Mini PCI Communications Card. . . . . . . . . . . . . . 6–34
6.17 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 6–36
6.18 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–40
6.19 TouchPad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–44
6.20 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–46
6.21 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–48
6.22 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–50
6.23 PC Card Assembly . . . . . . . . . . . . . . . . . . . . . . . . 6–54
7 Specifications
A Connector Pin Assignments
B Power Cord Set Requirements
C Screw Listing
D Display Component Recycling
Index

Maintenance and Service Guide 1–1
1
Product Description
The HP Compaq nx6115 and nx6125 Notebook PCs offer
advanced modularity, AMD Turion™ 64 mobile technology and
Mobile AMD Sempron™ processors, and extensive multimedia
support.
HP Compaq nx6115 and nx6125 Notebook PCs

1–2 Maintenance and Service Guide
Product Description
1.1 Features
■The following processors are available, varying by
notebook model:
❏AMD Turion 64 ML-40 (2.2-GHz)
❏AMD Turion 64 ML-37 (2.0-GHz)
❏AMD Turion 64 ML-34 (1.8-GHz)
❏AMD Turion 64 ML-32 (1.8-GHz)
❏AMD Turion 64 ML-30 (1.6-GHz)
❏AMD Turion 64 ML-28 (1.6-GHz)
❏Mobile AMD Sempron 3100+ (1.80-GHz)
❏Mobile AMD Sempron 3000+ (1.80-GHz)
❏Mobile AMD Sempron 2800+ (1.60-GHz)
■The following displays are available, varying by
notebook model:
❏15.0-inch, SXGA+WVA, TFT (1400 × 1050) with over
16.8 million colors
❏15.0-inch, XGA, TFT (1280 × 800) with over 16.8 million
colors
■80-, 60-, 40-, or 30-GB high-capacity hard drive, varying by
notebook model
■256-MB DDR PC2700 synchronous DRAM (SDRAM) at
333 MHz, expandable to 2.0 GB
■Microsoft® Windows® XP Home Edition or Windows XP
Professional, varying by notebook model

Product Description
Maintenance and Service Guide 1–3
■Full-size Windows keyboard with embedded numeric keypad
■TouchPad pointing device, including a dedicated vertical
scroll region.
■Integrated 10 Base-T/100 Base-TX (HP Compaq nx6115
only) and 10 Base-T/100 Base-TX/1000 Gigabit
(HP Compaq nx6125 only) 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 802.11a/b/g or
802.11b/g WLAN device
■Support for one Type II PC Card slot, with support for both
32-bit (CardBus) and 16-bit PC Cards, varying by notebook
model
■External 65-watt AC adapter with 3-wire power cord, varying
by notebook model
■6-cell Li-Ion battery pack
■Stereo speakers
✎The following features are available only on HP Compaq nx6125
models:
■6-in-1 Digital Media Slot
■S-Video-out jack
■Docking connector
■Volume up, volume mute, and volume down buttons
■Info Center and Presentation mode buttons
■Support for one ExpressCard slot

1–4 Maintenance and Service Guide
Product Description
■Support for the following optical drives:
❏DVD±RW and CD-RW Combo Drive
❏DVD/CD-RW Combo Drive
❏DVD-ROM drive
❏CD-ROM drive Connectors:
❏Audio-out (headphone)
❏Audio-in (microphone)
❏Universal Serial Bus (USB) v. 2.0 (3 ports)
❏Power
❏External monitor
❏RJ-11 (modem)
❏RJ-45 (network)
❏IEEE 1394
❏Travel battery
❏Digital Media Slot (HP Compaq nx6125 models only)
❏S-Video-out (HP Compaq nx6125 models only)
❏Docking connector (HP Compaq nx6125 models only)
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 6.3,
“Preparing the Notebook for Disassembly,” for more
information).
2. Remove the RTC battery (refer to Section 6.20, “RTC
Battery,” for more information on removing and replacing the
RTC battery).

Product Description
Maintenance and Service Guide 1–5
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.
1.3 Power Management
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: An integrated wireless device, such as
a wireless LAN device and/or a Bluetooth®
device, is turned on.
2 Power/standby light Green: The notebook is on.
Blinking green: The notebook is in standby
mode.
Off: The notebook is off or in hibernation.

Product Description
Maintenance and Service Guide 1–7
3 Battery 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.
4 IDE (Integrated Drive
Electronics) drive light
Blinking: The hard drive or optical drive is
being accessed.
5 Display release latch Opens the notebook.
6 Speakers (2) Produce system sound.
7 6-in-1 Digital Media
Slot (HP Compaq
nx6125 models only)
Supports 6 optional digital memory card
formats: SD (Secure Digital) Memory Card,
MultiMediaCard, Memory Stick, Memory
Stick Pro, SmartMedia, and xD-Picture
Card.
8 6-in-1 Digital Media
Slot light (HP Compaq
nx6125 models only)
On: Slot is accessing a digital memory card.
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
1 Optical drive Holds an optical disc.
2 RJ-11 (modem) jack Connects a modem cable.

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 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.
2 External monitor port Connects an external monitor.

Product Description
Maintenance and Service Guide 1–11
3 1394 port Connects an optional IEEE 1394 device,
such as a camcorder.
4 USB ports (2) Connect USB 1.1- and 2.0-compliant
devices to the notebook using a standard
USB cable, or connect an optional External
MultiBay II to the notebook. The MultiBay II
must also be connected to an external
power source.
5 Audio-in (microphone)
jack
Connects an optional stereo or monaural
microphone.
6 Audio-out (headphone)
jack
Produces system sound when connected to
optional powered stereo speakers,
headphones, headset, or television audio.
7 PC Card slot Supports optional Type I or Type II
PC Cards.
8 ExpressCard slot
(HP Compaq nx6125
models only)
Suppports optional ExpressCard/54 or
ExpressCard/34 cards.
9 PC Card slot eject
button
Ejects the PC Card from the PC Card slot.
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 Security cable slot Attaches an optional security cable to the
notebook.
ÄSecurity solutions are designed to act as deterrents. These
deterrents may not prevent a product from being mishandled or
stolen.
2 Battery bay Holds a battery pack.
3 Power connector Connects an AC adapter or an optional
combination power adapter.
4 RJ-45 (network) jack Connects a network cable.
5 USB port Connects USB 1.1- and 2.0-compliant
devices to the notebook using a standard
USB cable, or connect an optional
External MultiBay II to the notebook. The
MultiBay II must be connected to an
external power source.
6S-Video-outjack
(HP Compaq nx6125
models only)
Connects an optional S-Video device such
as a television, VCR, camcorder,
overhead projector, or video capture card.

1–14 Maintenance and Service Guide
Product Description
The standard keyboard components of the notebook are shown
below and described in Table 1-5.
Standard Keyboard Components
Table 1-5
Standard Keyboard Components
Item Component Function
1 Function keys Execute frequently used system
functions when pressed in combination
with the fn key.
2caps lock key Enables caps lock and turns on the
caps lock light.
3fn key Executes frequently used system
functions when pressed in combination
with a function key or the esc key.

Product Description
Maintenance and Service Guide 1–15
4 Windows logo key Displays the Microsoft Windows
Start menu.
5Windows
applications key
Displays a shortcut menu for items
beneath the pointer.
6 Arrow keys Moves the cursor around the screen.
7 Keypad keys Can be used like the keys on an external
numeric keypad.
8num lock key Enables numeric lock, turns on the
embedded numeric keypad, and turns
on the num lock light.
Table 1-5
Standard Keyboard Components
(Continued)
Item Component Function

1–16 Maintenance and Service Guide
Product Description
The notebook top components are shown below and described in
Table 1-6.
Top Components
Table 1-6
Top Components
Item Component Function
1 Display lid switch Puts the notebook in standby if the display
is closed while the notebook is turned on.
2 Power/standby button When the notebook is:
Off, press the button to turn on the
notebook.
In standby, briefly press the button to exit
standby.
In hibernation, briefly press the button to
exit hibernation.
If the notebook has stopped responding
and Microsoft Windows shutdown
procedures cannot be used, press the
power/standby button and hold for 5
seconds to turn off the notebook.