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.
Microsoft and Windows are U.S. registered trademarks of Microsoft
Corporation. Intel and Pentium 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 Pavilion dv5100 Notebook PC
Second Edition: June 2006
First Edition: February 2006
Document Part Number: 405500-002
The HP Pavilion dv5100 Notebook PC offers advanced
modularity, Intel® Pentium® M processors, and extensive
multimedia support.
1
HP Pavilion dv5100 Notebook PC
Maintenance and Service Guide1–1
Product Description
1.1Features
Numerous references are made throughout this Maintenance and
✎
Service Guide to “full-featured” and “defeatured” computer
models. A model is considered to be full-featured if it has
3 Universal Serial Bus ports and the following components:
■ PC Card slot
■ IEEE 1394 port
■ Digital Media Slot
A model is considered to be defeatured if it has only two
Universal Serial Bus ports and none of the components listed
above.
■ The following processors, varying by computer model:
❏ Intel Pentium M 2.0- or 1.83-GHz
❏ Intel Celeron M 1.60-GHz or 410 1.46-GHz
❏ Intel Core Duo T2600 (2.16-GHz), T2250 (1.73-GHz),
T2300E (1.66-GHz), or T2050 (1.60-GHz)
❏ Intel Core Solo T1350 1.86-, 1.83-GHz, or 1.66-GHz
■ 15.4-inch, WXGA, TFT (1280 × 800) display with antiglare
or BrightView, varying by computer model
■ 120, 100-, 80-, 60-, or 40-GB high-capacity hard drive,
varying by computer model
■ 256-MB DDR1 synchronous DRAM (SDRAM) at 667 MHz,
expandable to 2.0 GB
■ Microsoft® Windows® XP Home Edition or Windows XP
Professional, varying by computer model
■ Full-size Windows keyboard with embedded numeric keypad
■ TouchPad pointing device, including dedicated vertical scroll
region
1–2Maintenance and Service Guide
Product Description
■ Integrated 10Base-T/100Base-TX 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 Card IEEE 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
■ Support for ExpressCard slot
■ External 65-watt AC adapter with 3-wire power cord
■ 12- or 6-cell Li-Ion battery
■ Stereo speakers
■ Volume up, volume mute, and volume down buttons
■ Support for the following optical drives:
❏ DVD±RW and CD-RW Super Multi Double-Layer
Combo Drive with LightScribe
❏ DVD±RW and CD-RW Super Multi Double-Layer
Combo Drive
❏ DVD±RW and CD-RW Double-Layer Combo Drive with
LightScribe and Hitachi LG Data Storage
❏ DVD±RW and CD-RW Double-Layer Combo Drive with
LightScribe
❏ DVD/CD-RW Double-Layer Combo Drive with
LightScribe
❏ DVD/CD-RW Combo Drive
❏ DVD-ROM drive
Maintenance and Service Guide1–3
Product Description
■ Connectors:
❏ Audio-in (microphone)
❏ Audio-out (headphone)
❏ Digital Media Slot (select models only)
❏ Expansion port 2
❏ ExpressCard slot
❏ External monitor
❏ IEEE 1394 (select models only)
❏ PC Card (select models only)
❏ Power
❏ RJ-11 (modem)
❏ RJ-45 (network)
❏ S-Video-out
❏ Universal Serial Bus (USB) v. 2.0 (2 or 3 ports, varying by
computer model)
1.2 Resetting the Computer
If the computer you are servicing has an unknown password,
follow these steps to clear the password. These steps also
clear CMOS:
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
5.8, “RTC Battery,” for more information.)
1–4Maintenance and Service Guide
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 CMOS settings have been cleared.
1.3Power Management
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
Product Description
■ Lid switch standby/resume
■ Power button
■ Advanced Configuration and Power Management (ACPM)
compliance
Maintenance and Service Guide1–5
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
1–6Maintenance and Service Guide
Product Description
Tabl e 1-1
Front Components
ItemComponentFunction
1Power light■ On: Computer is turned on.
■ Off: Computer is off or in hibernation.
■ Blinking: Computer is in standby.
2Battery light■ On: A battery is charging or is close to
full charge capacity.
■ Off: If the computer is plugged into an
external power source, the light is turned
off when all batteries in the computer are
fully charged. If the computer is not
plugged into an external power source,
the light stays off until the battery
reaches a low-battery condition.
■ Blinking: 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 quickly.
3Drive lightOn or blinking: The internal hard drive or an
optical drive is being accessed.
4SpeakersProduce stereo sound.
5Display release latchOpens the computer.
Maintenance and Service Guide1–7
Product Description
The external components on the right side of the computer are
shown below and described in Table 1-2.
Right-Side Components
Tabl e 1-2
Right-Side Components
ItemComponentFunction
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.
2Audio-in (microphone)
jack
3ExpressCard slotSupports an optional ExpressCard.
4USB port
(select models only)
5Optical driveSupports an optical disc, such as a CD or
6RJ-11 (modem) jackConnects a modem cable (not included).
7Power connectorConnects the AC adapter cable.
1–8Maintenance and Service Guide
Connects an optional stereo microphone.
Connects optional USB devices.
DVD.
The external components on the rear panel of the computer are
shown below and described in Table 1-3.
Rear Panel Components
Tabl e 1-3
Rear Panel Components
ItemComponentFunction
Product Description
1Wireless lightOn: One or more internal wireless devices
have been turned on.
To establish a wireless connection, a
✎
wireless network must already be set
up.
2Battery bayHolds a battery.
3VentProvides airflow to cool internal
components.
To prevent overheating, do not
Ä
obstruct vents. Do not allow a hard
surface, such as a printer, or a soft
surface, such as pillows or thick rugs
or clothing, to block airflow.
Maintenance and Service Guide1–9
Product Description
The external components on the left side of the computer are
shown below and described in Table 1-4.
Left-Side Components
Tabl e 1-4
Left-Side Components
ItemComponentFunction
1Security cable slotAttaches an optional security cable to the
computer.
The security cable is designed to act
✎
as a deterrent, but may not prevent
the product from being mishandled or
stolen.
2Monitor portConnects an optional VGA monitor or
projector.
3S-Video-out jackConnects the video function of an optional
S-Video device, such as a television, VCR,
or video capture card.
4RJ-45 (network) jackConnects a network cable (not included).
1–10Maintenance and Service Guide
Tabl e 1-4
Product Description
Left-Side Components
ItemComponentFunction
5Expansion port 2Connects the computer to an optional
expansion product.
✎
6USB ports (2)Connect optional USB devices.
71394 port
(select models only))
8Digital Media Slot light
(select models only)
9Digital Media Slot
(select models only)
10PC Card slot
(select models only)
Connects an optional 1394a device such as
a scanner, a digital camera, or a digital
camcorder.
On: An optional digital card is being
accessed.
Supports the following optional digital
cards: Secure Digital (SD) Memory Card,
SD I/O Card, Memory Stick, Memory Stick
Pro, MultiMediaCard, xD-Picture Card, and
SmartMedia.
Supports an optional Type I or Type II
32-bit (CardBus) or 16-bit PC Card.
(Continued)
The computer has only one
expansion port. The term
describes the type of
port 2
expansion port.
expansion
Maintenance and Service Guide1–11
Product Description
The standard keyboard components of the computer are shown
below and described in Table 1-5.
Standard Keyboard Components
1–12Maintenance and Service Guide
Product Description
Table 1-5
Standard Keyboard Components
ItemComponentFunction
1f1 to f12 keys (12)Perform system and application tasks.
When combined with fn, function keys
perform additional tasks as hotkeys.
2caps lock keyEnables caps lock and turns on the
caps lock light.
3fn
4Windows logo keyDisplays the Microsoft Windows Start
5Windows
6Arrow keysMove the cursor around the screen.
7 Numeric keypad keys
8num lock keyEnables numeric lock, turns on the
keyCombines with other keys to perform
system tasks as hotkeys. For example,
pressing fn+f7 decreases screen
brightness.
menu.
Displays a shortcut menu for items
applications key
(15)
beneath the pointer.
Can be used like the keys on an external
numeric keypad.
embedded numeric keypad, and turns
on the num lock light.
Maintenance and Service Guide1–13
Product Description
The computer top components are shown below and described in
Table 1-6.
Top Components
Table 1-6
Top Components
ItemComponentFunction
1Caps lock lightOn: Caps lock is enabled.
2Power light■ On: The computer is on.
■ Blinking: The computer is in standby.
■ Off: The computer is off or in
hibernation.
1–14Maintenance and Service Guide
Table 1-6
Product Description
Top Components
ItemComponentFunction
2Power buttonWhen the computer is
3QuickLaunch buttonsLaunch default multimedia, digital imaging,
4Wireless buttonTurns the wireless functionality on or off,
5Wireless lightOn: One or more internal wireless devices
(Continued)
■ Off, press to turn on the computer.
■ On, press to enter hibernation.
■ In standby, briefly press to exit standby.
■ In hibernation, briefly press to exit
hibernation.
If the computer has stopped responding
and Microsoft® Windows® shutdown
procedures cannot be used, press and
hold the power button for at least
5 seconds to turn off the computer.
or music applications.
but does not create a wireless connection.
To establish a wireless connection,
✎
a wireless network must already be
set up.
have been turned on.
To establish a wireless connection,
✎
a wireless network must already be
set up.
6Volume down buttonDecreases speaker volume.
7Volume mute buttonMutes or restores speaker volume.
8Volume up buttonIncreases speaker volume.
9Num lock lightOn: Num lock is enabled.
Maintenance and Service Guide1–15
Product Description
The computer TouchPad components are shown below and
described in Table 1-7.
TouchPad Components
1–16Maintenance and Service Guide
Product Description
Table 1-7
TouchPad Components
ItemComponentFunction
1TouchPadMoves 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.
2Left and right
TouchPad buttons
3TouchPad vertical
scroll zone
Function like the left and right buttons on
an external mouse.
Scrolls up or down.
Maintenance and Service Guide1–17
Product Description
The external components on the bottom of the computer are
shown below and described in Table 1-8.
Bottom Components
Table 1 -8
Bottom Components
ItemComponentFunction
1Optical driveSupports an optical disc, such as a CD
or DVD.
2Labels areaContains the serial number and other
information labels.
3Battery release latchReleases a battery from the battery bay.
4Battery bayHolds a battery.
1–18Maintenance and Service Guide
Table 1 -8
Product Description
Bottom Components
ItemComponentFunction
5Vents (2)Provide airflow to cool internal
6Memory/Mini Card module
compartment cover
(Continued)
components.
To prevent overheating, do not
Ä
obstruct vents. Use the computer
only on a hard, flat surface. Do
not allow a another hard surface,
such as an adjoining optional
printer, or a soft surface, such as
pillows or thick rugs or clothing,
to block airflow.
■ Contains 2 memory module slots that
support replaceable memory
modules. The number of preinstalled
memory modules varies by computer
model.
■ Holds an optional wireless LAN
device (select models only).
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. If you install an
unauthorized device and then
receive a warning message,
remove the device to restore
computer functionality. Then
contact Customer Care.
7Hard drive bayHolds the hard drive.
Maintenance and Service Guide1–19
Product Description
1.5Design Overview
This section presents a design overview of key parts and features
of the computer. Refer to Chapter 3, “Illustrated Parts Catalog,”
to identify replacement parts, and Chapter 5, “Removal and
Replacement Procedures,” for disassembly steps.
The system board provides the following device connections:
■ Intel Pentium M processors
■ Audio
■ Digital media card
■ Display
■ ExpressCard
■ Hard drive
■ Keyboard
■ Memory module
■ Mini Card module
■ PC Card
■ To uc hP ad
CAUTION: To properly ventilate the computer, allow at least a 7.6-cm
Ä
(3-inch) clearance on the left and right sides of the computer.
The computer uses an electric fan for ventilation. The fan is
controlled by a temperature sensor and is designed to turn 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. Exhaust air is
displaced through the ventilation grill located on the left side of
the computer.
1–20Maintenance 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 system information and customization utility
that can be used even when the operating system is not working
or will not load. This utility includes settings that are not
available in Windows.
2
Using Computer Setup
Information and settings in Computer Setup are accessed from
the File, Security, Diagnostics, or System Configuration menus:
1. Turn on or restart the computer. Press
F10 = ROM-Based Setup message is displayed in
the lower-left corner of the screen.
❏ To change the language, use the cursor control keys
to navigate to the System Configuration menu.
❏ To view navigation information, press f1.
❏ To return to the Computer Setup menu, press esc.
Maintenance and Service Guide2–1
f10while the
Troubleshooting
2. Select the File, Security, Diagnostics, or
System Configuration menu.
3. To close Computer Setup and restart the computer:
❏ Select File > Save changes and exit, and then press enter.
– or –
❏ Select File > Ignore changes and exit, and then
– or –
❏ Select File > Restore defaults, and then press enter.
press
enter.
4. When you are prompted to confirm your action, press
Selecting from the File Menu
Table 2 -1
File Menu
SelectTo Do This
System Information■ View identification information about the
computer, processor, memory and cache size,
and system ROM.
■ View BIOS revision, keyboard controller
version, and battery pack serial number
information.
f10.
2–2Maintenance and Service Guide
Troubleshooting
Selecting from the Security Menu
Table 2 -2
Security Menu
SelectTo Do This
Setup PasswordEnter, change, or delete an Setup password.
Power-On PasswordEnter, change, or delete a power-on password.
Password Options
(Password options can
be selected only when
a power-on password
has been set.)
DriveLock PasswordsEnable/disable DriveLock; change a DriveLock
413453-001Fan assembly UMA (includes thermal paste)
417698-001DVD±RW and CD-RW Double-Layer Combo Drive with
LightScribe and Hitachi LG Data Storage
430195-001945PM NV72 system board for use with full-featured
computer models
3–30Maintenance and Service Guide
Table 3 -7
Illustrated Parts Catalog
Sequential Part Number Listing
Spare Part
NumberDescription
430196-001945GM system board for use with full-featured
computer models
430197-001940GML system board for use with defeatured
computer models
430200-001Intel Core Solo 1.83-GHz processor
430201-001Intel Core Solo 1.66-GHz processor
430202-001Intel Celeron M 1.60-GHz processor
430203-001DVD/CD-RW Combo Drive
430204-001DVD-ROM drive
430205-001DVD±RW and CD-RW Super Multi Double-Layer Combo Drive
430206-001DVD±RW and CD-RW Super Multi Double-Layer Combo Drive
430207-001DVD±RW and CD-RW Super Multi Double-Layer Combo Drive
with LightScribe
430215-001Display Label Kit
430328-0015400 rpm, 120-GB hard drive
430525-00115.4-inch, WXGA, antiglare display assembly for use with
UMA system boards
430526-00115.4-inch, WXGA, antiglare display assembly for use
with discrete system boards
(Continued)
430527-00115.4-inch, WXGA, BrightView display assembly for use
with UMA system boards
430528-00115.4-inch, WXGA, BrightView display assembly for use with
discrete system boards
Maintenance and Service Guide3–31
Illustrated Parts Catalog
Table 3 -7
Sequential Part Number Listing
Spare Part
NumberDescription
430531-001Display Cable Kit for use with UMA system boards
430532-001Display Cable Kit for use with discrete system boards
430847-001Intel Core Duo T2600 2.16-GHz processor
430848-001Intel Core Duo T2300E 1.66-GHz processor
430849-001Intel Celeron M 410 1.46-GHz processor
430850-001Intel Core Duo T2050 1.60-GHz processor
430851-001Intel Core Duo T2250 1.73-GHz processor
430852-001Intel Core Solo T1350 1.86-GHz processor
(Continued)
3–32Maintenance and Service Guide
Removal and Replacement
This chapter provides essential information for proper and
safe removal and replacement service.
4.1 Tools Required
You will need the following tools to complete the removal and
replacement procedures:
■ Magnetic screwdriver
■ Phillips P0 screwdriver
■ Flat-bladed screwdriver
4
Preliminaries
Maintenance and Service Guide4–1
Removal and Replacement Preliminaries
4.2 Service Considerations
The following sections include some of the considerations
that you should keep in mind during disassembly and assembly
procedures.
As you remove each subassembly from the computer, place
✎
the subassembly (and all accompanying screws) away from
the work area to prevent damage.
Plastic Parts
Using excessive force during disassembly and reassembly can
damage plastic parts. Use care when handling the plastic parts.
Apply pressure only at the points designated in the maintenance
instructions.
Cables and Connectors
CAUTION: When servicing the computer, ensure that cables are
Ä
placed in their proper locations during the reassembly process.
Improper cable placement can damage the computer.
Cables must be handled with extreme care to avoid damage.
Apply only the tension required to unseat or seat the cables
during removal and insertion. Handle cables by the connector
whenever possible. In all cases, avoid bending, twisting, or
tearing cables. Ensure that cables are routed in such a way that
they cannot be caught or snagged by parts being removed
or replaced. Handle flex cables with extreme care; these cables
tear easily.
4–2Maintenance and Service Guide
Removal and Replacement Preliminaries
4.3 Preventing Damage to
Removable Drives
Removable drives are fragile components that must be handled
with care. To prevent damage to the computer, damage to a
removable drive, or loss of information, observe the following
precautions:
■ Before removing or inserting a hard drive, shut down the
computer. If you are unsure whether the computer is off or
in hibernation, turn the computer on, and then shut it down
through the operating system.
■ Before removing a diskette drive or optical drive, ensure that
a diskette or disc is not in the drive and ensure that the optical
drive tray is closed.
■ Before handling a drive, ensure that you are discharged of
static electricity. While handling a drive, avoid touching the
connector.
■ Handle drives on surfaces covered with at least one inch of
shock-proof foam.
■ Avoid dropping drives from any height onto any surface.
■ After removing a hard drive, an optical drive, or a diskette
drive, place it in a static-proof bag.
■ Avoid exposing a hard drive to products that have magnetic
fields, such as monitors or speakers.
■ Avoid exposing a drive to temperature extremes or liquids.
■ If a drive must be mailed, place the drive in a bubble pack
mailer or other suitable form of protective packaging and label
the package “FRAGILE: Handle With Care.”
Maintenance and Service Guide4–3
Removal and Replacement Preliminaries
4.4 Preventing Electrostatic Damage
Many electronic components are sensitive to electrostatic
discharge (ESD). Circuitry design and structure determine the
degree of sensitivity. Networks built into many integrated circuits
provide some protection, but in many cases, the discharge
contains enough power to alter device parameters or melt
silicon junctions.
A sudden discharge of static electricity from a finger or other
conductor can destroy static-sensitive devices or microcircuitry.
Often the spark is neither felt nor heard, but damage occurs.
An electronic device exposed to electrostatic discharge may not
be affected at all and can work perfectly throughout a normal
cycle. Or the device may function normally for a while, then
degrade in the internal layers, reducing its life expectancy.
4–4Maintenance and Service Guide
Removal and Replacement Preliminaries
4.5 Packaging and Transporting
Precautions
Use the following grounding precautions when packaging and
transporting equipment:
■ To avoid hand contact, transport products in static-safe
containers, such as tubes, bags, or boxes.
■ Protect all electrostatic-sensitive parts and assemblies with
conductive or approved containers or packaging.
■ Keep electrostatic-sensitive parts in their containers until
the parts arrive at static-free workstations.
■ Place items on a grounded surface before removing items
from their containers.
■ Always be properly grounded when touching a sensitive
component or assembly.
■ Store reusable electrostatic-sensitive parts from assemblies
in protective packaging or nonconductive foam.
■ Use transporters and conveyors made of antistatic belts and
roller bushings. Ensure that mechanized equipment used for
moving materials is wired to ground and that proper materials
are selected to avoid static charging. When grounding is not
possible, use an ionizer to dissipate electric charges.
Maintenance and Service Guide4–5
Removal and Replacement Preliminaries
4.6 Workstation Precautions
Use the following grounding precautions at workstations:
■ Cover the workstation with approved static-shielding material
(refer to
■ Use a wrist strap connected to a properly grounded work
surface and use properly grounded tools and equipment.
■ Use conductive field service tools such as cutters,
screwdrivers, and vacuums.
■ When fixtures must directly contact dissipative surfaces, use
fixtures made only of static-safe materials.
■ Keep the work area free of nonconductive materials such
as ordinary plastic assembly aids and Styrofoam.
■ Handle electrostatic-sensitive components, parts, and
assemblies by the case or PCM laminate. Handle these
items only at static-free workstations.
■ Avoid contact with pins, leads, or circuitry.
■ Turn off power and input signals before inserting or removing
connectors or test equipment.
Table 4-2, “Static-Shielding Materials”).
4–6Maintenance and Service Guide
Removal and Replacement Preliminaries
4.7 Grounding Equipment and
Methods
Grounding equipment must include either a wrist strap or a
foot strap at a grounded workstation.
■ When seated, wear a wrist strap connected to a grounded
system. Wrist straps are flexible straps with a minimum of
one megohm ±10% resistance in the ground cords. To provide
proper ground, wear a strap snugly against the skin at all times.
On grounded mats with banana-plug connectors, use alligator
clips to connect a wrist strap.
■ When standing, use foot straps and a grounded floor mat.
Foot straps (heel, toe, or boot straps) can be used at standing
workstations and are compatible with most types of shoes
or boots. On conductive floors or dissipative floor mats, use
foot straps on both feet with a minimum of one megohm
resistance between the operator and ground. To be effective,
the conductive strips must be worn in contact with the skin.
Other grounding equipment recommended for use in preventing
electrostatic damage includes
■ Antistatic tape.
■ Antistatic smocks, aprons, and sleeve protectors.
■ Conductive bins and other assembly or soldering aids.
■ Nonconductive foam.
■ Conductive tabletop workstations with ground cords of
one megohm resistance.
■ Static-dissipative tables or floor mats with hard ties to
the ground.
■ Field service kits.
■ Static awareness labels.
■ Material-handling packages.
■ Nonconductive plastic bags, tubes, or boxes.
■ Metal tote boxes.
■ Electrostatic voltage levels and protective materials.
Maintenance and Service Guide4–7
Removal and Replacement Preliminaries
Table 4-1 shows how humidity affects the electrostatic voltage
levels generated by different activities.
Tabl e 4-1
Typical Electrostatic Voltage Levels
Relative Humidity
Event10%40%55%
Walking across carpet35,000 V15,000 V7,500 V
Walking across vinyl floor12,000 V 5,000 V3,000 V
Motions of bench worker6,000 V800 V400 V
Removing DIPS from plastic tube2,000 V700 V400 V
Removing DIPS from vinyl tray11,500 V4,000 V2,000 V
Removing DIPS from Styrofoam14,500 V5,000 V3,500 V
Removing bubble pack from PCB26,500 V20,000 V7,000 V
Packing PCBs in foam-lined box21,000 V11,000 V5,000 V
A product can be degraded by as little as 700 V.
✎
Table 4-2 lists the shielding protection provided by antistatic
bags and floor mats.
Table 4 -2
Static-Shielding Materials
MaterialUseVoltage Protection Level
Antistatic plasticBags1,500 V
Carbon-loaded plasticFloor mats7,500 V
Metallized laminateFloor mats5,000 V
4–8Maintenance and Service Guide
Removal and Replacement
This chapter provides removal and replacement procedures.
There are as many as 98 screws, in 12 different sizes, that may
have to be removed, replaced, or loosened when servicing the
computer. Make special note of each screw size and location
during removal and replacement.
Refer to Appendix A, “Screw Listing,” for detailed information
on screw sizes, locations, and usage.
5.1Serial Number
Report the computer serial number to HP when requesting
information or ordering spare parts. The serial number is
located on the bottom of the computer.
5
Procedures
Serial Number Location
Maintenance and Service Guide5–1
Removal and Replacement Procedures
5.2 Disassembly Sequence Chart
Use the chart below to determine the section number to be
referenced when removing computer components.
Disassembly Sequence Chart
SectionDescription
5.3Preparing the Computer for
Disassembly
Battery0
5.4Hard Drive2 loosened to remove the
5.5Computer Feet0
5.6Memory Module2 loosened to remove the
5.7Mini Card Module0
To prevent an unresponsive system and the display of
Å
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. If
you install a device and then receive a warning message,
remove the device to restore computer functionality. Then
contact Customer Care.
5.8RTC Battery0
# of Screws Removed
hard drive cover
2 to remove the hard drive
4 to disassemble the
hard drive
memory/Mini Card module
compartment cover
5–2Maintenance and Service Guide
Removal and Replacement Procedures
Disassembly Sequence Chart
SectionDescription
5.9Optical Drive1 to remove to optical drive
5.10Switch Cover7
5.11Keyboard Frame1
5.12LED Board5
5.13Keyboard4
5.14Display Assembly4 to remove the display
5.15Top C o v e r21
5.16Bluetooth Module1
5.17System Board6
(Continued)
# of Screws Removed
2 to remove the optical drive
bracket
assembly
8 to remove the display bezel
2 to remove the display panel
4 to remove each display
hinge
1 to remove each wireless
antenna transceiver
5.18USB/Audio Board1
5.19Fan/Heat Sink Assembly9
5.20Processor1 loosened
5.21Speakers1
5.22PC Card Assembly2
5.23ExpressCard Assembly2
Maintenance and Service Guide5–3
Removal and Replacement Procedures
5.3 Preparing the Computer for
Disassembly
Before you begin any removal or installation procedures:
1. Shut down the computer. If you are unsure whether the
computer is off or in hibernation, turn the computer on,
and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power cord.
Battery Spare Part Number Information
12-cell, 8.8-Amp hour
6-cell, 4.0-Amp hour
407835-001
407834-001
4. Remove the battery by following these steps:
a. Turn the computer upside down with the front toward you.
5–4Maintenance and Service Guide
Removal and Replacement Procedures
b. Slide the battery release latch 1 to the left. (The battery
disengages from the computer.)
c. Lift the front edge of the battery 2 and swing it back to
remove it.
Removing the Battery
Reverse the above procedure to install the battery.