HP Compaq nx6115 Notebook PC Schematic
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
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
Maintenance and Service Guide iii
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
iv Maintenance and Service Guide
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
Maintenance and Service Guide 1–1
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
1–2 Maintenance and Service Guide
Product Description
■ 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
Maintenance and Service Guide 1–3
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).
1–4 Maintenance and Service Guide
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
Product Description
■ Lid switch standby/resume
■ Power/standby button
■ Advanced Configuration and Power Management (ACPM)
compliance
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: An integrated wireless device, such as
2 Power/standby light Green: The notebook is on.
1–6 Maintenance and Service Guide
a wireless LAN device and/or a Bluetooth®
device, is turned on.
Blinking green: The notebook is in standby
mode.
Off: The notebook is off or in hibernation.
Tabl e 1-1
Product Description
Front Components
(Continued)
Item Component Function
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
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)
Blinking: The hard drive or optical drive is
being accessed.
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)
Maintenance and Service Guide 1–7
On: Slot is accessing a digital memory card.
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
1 Optical drive Holds an optical disc.
2 RJ-11 (modem) jack Connects a modem cable.
Product Description
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 Vent Enables airflow to cool internal
components.
To prevent overheating, do not obstruct vents. Using the
Ä
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.
1–10 Maintenance and Service Guide
Tabl e 1-3
Product Description
Left-Side Components
(Continued)
Item Component Function
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
6 Audio-out (headphone)
jack
7 PC Card slot Supports optional Type I or Type II
8 ExpressCard slot
(HP Compaq nx6125
models only)
9 PC Card slot eject
button
Connects an optional stereo or monaural
microphone.
Produces system sound when connected to
optional powered stereo speakers,
headphones, headset, or television audio.
PC Cards.
Suppports optional ExpressCard/54 or
ExpressCard/34 cards.
Ejects the PC Card from the PC Card slot.
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
Table 1-4
Rear Panel Components
Item Component Function
1 Security cable slot Attaches an optional security cable to the
notebook.
Security solutions are designed to act as deterrents. These
Ä
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
4 RJ-45 (network) jack Connects a network cable.
5 USB port Connects USB 1.1- and 2.0-compliant
6S-Video-out jack
(HP Compaq nx6125
models only)
combination power adapter.
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.
Connects an optional S-Video device such
as a television, VCR, camcorder,
overhead projector, or video capture card.
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
Table 1-5
Standard Keyboard Components
Item Component Function
1 Function keys Execute frequently used system
2 caps lock key Enables caps lock and turns on the
3 fn
1–14 Maintenance and Service Guide
key Executes frequently used system
functions when pressed in combination
with the fn key.
caps lock light.
functions when pressed in combination
with a function key or the esc key.
Table 1-5
Product Description
Standard Keyboard Components
(Continued)
Item Component Function
4 Windows logo key Displays the Microsoft Windows
Start menu.
5Windows
applications key
6 Arrow keys Moves the cursor around the screen.
7 Keypad keys Can be used like the keys on an external
8 num lock key Enables numeric lock, turns on the
Displays a shortcut menu for items
beneath the pointer.
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
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.
1–16 Maintenance and Service Guide
Table 1-6
Product Description
Top Components
(Continued)
Item Component Function
3 Info Center button
(HP Compaq nx6125
models only)
4 Wireless button Turns the wireless functionality on or off,
To establish a wireless connection, a wireless network must
✎
already be set up.
5 Presentation mode
6 Caps lock light On: Caps lock is on.
7 Num lock light On: Num lock is on or the embedded
8 Volume mute button
9 Volume down button
10 Volume up button
button (HP Compaq
nx6125 models only)
(HP Compaq nx6125
models only)
(HP Compaq nx6125
models only)
(HP Compaq nx6125
models only)
Launches Info Center, which enables you
to quickly open the following software
solutions: Altiris Local Recovery, Contact
HP, Help and Support, Options Demo,
ProtectTools Security Manager, Software
Setup, System Information, and Wireless
Assistant.
but does not create a wireless connection.
Turns on Presentation mode.
numeric keypad is enabled.
Mutes system sound.
Decreases system sound.
Increases system sound.
Maintenance and Service Guide 1–17
Product Description
The notebook TouchPad components are shown below and
described in Table 1-7.
TouchPad Components
1–18 Maintenance and Service Guide
Product Description
Table 1-7
TouchPad Components
Item Component Function
1 TouchPad Moves the pointer and selects or activates
items on the screen. Can be set to perform
other mouse functions, such as scrolling,
selecting, and double-clicking.
2 Left and right
TouchPad buttons
3 Fingerprint reader
HP Compaq nx6125
models only)
4 TouchPad scroll zone Scrolls upward or downward.
Function like the left and right buttons on
an external mouse.
Allows a fingerprint logon to Windows
instead of using a password.
Maintenance and Service Guide 1–19
Product Description
The external components on the bottom of the notebook are
shown below and described in Table 1-8.
Bottom Components
Table 1 -8
Bottom Components
Item Component Function
1 Primary battery bay Holds the primary battery pack.
2 Primary battery locking
latch
3 Docking connector
(HP Compaq nx6125
models only)
4 Travel battery connector Connects an optional travel battery.
1–20 Maintenance and Service Guide
Secures the primary battery pack into
the battery bay.
Connects the notebook to an optional
HP Advanced Docking Station or
HP Docking Station.
Table 1 -8
Product Description
Bottom Components
(Continued)
Item Component Function
5 Memory module
compartment
6 Hard drive bay Holds the hard drive.
7 Primary battery release
latch
Contains the memory module slots.
Releases the primary battery pack from
the battery bay.
Maintenance and Service Guide 1–21
Product Description
1.5 Design Overview
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:
■ AMD Turion 64 MT, Turion 64 ML, and Mobile AMD
Sempron processors
■ Audio
■ Display
■ Hard drive
■ Keyboard and TouchPad
■ Memory module
■ Mini PCI communications devices
■ PC Card
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.
1–22 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
is 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
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
Tabl e 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
Troubleshooting
Selecting from the Security Menu
Table 2 -2
Security Menu
Select To Do This
Administrator password Enter, change, or delete an HP Administrator
password.
Power-on password Enter, change, or delete a power-on password.
Password options ■ Enable/Disable stringent security.
■ Enable/Disable required password on restart.
DriveLock passwords Enable/disable DriveLock; change a DriveLock
user or master password.
DriveLock Settings are accessible only
✎
when you enter Computer Setup by turning
on (not restarting) the notebook.
Smart Card security Enable/disable power-on support for smart cards.
This feature is supported by select Smart
✎
Card readers only.
Embedded security ■ Enable/Disable the embedded security chip.
■ Restore embedded security chip to factory
settings.
■ Enable/Disable power-on authentication
support.
■ Enable/Disable automatic DriveLock.
■ Reset power-on authentication credential
Embedded Security settings are accessible
✎
only if the notebook is equipped with an
embedded security chip.
Device security ■ Enable/Disable devices in the system.
■ Enable NIC for inclusion in MultiBoot.
System IDs Enter user-defined identification values.
2–4 Maintenance and Service Guide
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