This guide is a troubleshooting reference used for maintaining
and servicing the notebook. It provides comprehensive
information on identifying computer features, components, and
spare parts, troubleshooting computer problems, and performing
computer disassembly procedures.
Compaq, Evo, and the Compaq logo are trademarks of Compaq Information
Technologies Group, L.P.
Microsoft and Windows are trademarks of Microsoft Corporation.
Intel, Pentium, and Celeron are trademarks of Intel Corporation.
All other product names mentioned herein may be trademarks of their respective
companies.
Compaq shall not be liable for technical or editorial errors or omissions
contained herein. The information in this document is provided “as is” without
warranty of any kind and is subject to change without notice. the warranties for
Compaq products are set forth in the express limited warranty statements
accompanying such products. Nothing herein should be construed as
constituting an additional warranty.
Maintenance and Service Guide
First Edition October 2001
Document Part Number: 260552-001
The Compaq Notebook Evo N160 Series of Personal Computers
offers advanced modularity, Intel Pentium III processors with
64-bit architecture, industry-leading Accelerated Graphics Port
(AGP) implementation, and extensive multimedia support.
Figure 1-1. Compaq Notebook Evo N160
Maintenance and Service Guide1–1
Product Description
Models
Computer models are shown in Table1-1.
Table 1-1
Compaq Notebook Evo N160
Models and Model Naming Conventions
Key
N16P100X420VC12L2XXXXXX-XXX
123 4567891011
KeyDescriptionOptions
1Brand / Series
designator
2Processor typeP=Intel Pentium IIIC=Intel Celeron
3Processor speed120=1.20 GHz
4Display type /
size / resolution
N=Notebook16=160
100=1.00 GHz
113=1.13 GHz
106=1.06 GHz
X=XGA (1024 ×
768)
933=933 MHz
866=866 MHz
4=14.x-inch
3=13.x-inch
5Hard drive size48=48 GB
30=30 GB
20=20 GB
6Optical drive
designator
7Integrated
communication
8RAM12=128 MB
9Battery cells / typeL=8 cells, Lithium ion (Li ion)
10Operating system8=Windows 982=Windows 2000
11SKU#
All computer models use configuration code KHYZ.
1–2Maintenance and Service Guide
V=8X Max
DVD -RO M dr ive
M=modem
0=none
15=15 GB
10=10 GB
D=24X Max
CD-ROM drive
C=modem/NIC
combination card
Product Description
Table 1-1
Compaq Notebook Evo N160
Models and Model Naming Conventions (Continued)
123 4567891011
N16P100X420VC12 L 8
Arabic470024-097The Netherlands470024-099
Australia470024-980Norway470024-101
Belgium470024-081Portugal470024-103
Czech Republic470024-083Russia470024-105
Denmark470024-085Slovakia /
Slovenia
European470024-070Spain470024-107
France470024-087Sweden /
Finland
French Canada470023-990Switzerland470024-111
470024-106
470024-109
470024-113
Germany470024-089Turkey470024-115
Greece / Poland470024-091United Kingdom470024-117
Hong Kong470023-984United States470023-988
470024-072
(NAFTA)
Korea470024-050Taiwan470023-982
Latin America470024-055
470024-065
(NAFTA)
Maintenance and Service Guide1–3
Product Description
Table 1-1
Compaq Notebook Evo N160
Models and Model Naming Conventions (Continued)
N16P100X420VC12 L 2
Arabic470024-098Latin America470024-058
470024-067
(NAFTA)
Australia470024-981The Netherlands470024-100
Czech Republic470024-084Norway470024-102
Denmark470024-086Portugal470024-104
European470024-082Spain470024-108
France470024-088Sweden /
Finland
French Canada470023-991Switzerland470024-112
Germany470024-090Taiwan470023-983
Hong Kong470023-985Turkey470024-116
Italy470024-096United Kingdom470024-118
Korea470024-052United States470023-989
470024-110
470024-114
470024-074
(NAFTA)
1–4Maintenance and Service Guide
Product Description
Table 1-1
Compaq Notebook Evo N160
Models and Model Naming Conventions (Continued)
N16C933X415VC12L8
Australia470024-079The Netherlands470024-061
Denmark470024-044Norway470024-064
European470024-043People’s
Republic of
China
France470024-048Portugal470024-068
French Canada470024-042Sweden /
Finland
Germany470024-051Taiwan470024-023
Greece / Poland470024-054Turkey470024-076
Hong Kong470024-026United Kingdom470024-077
Japan470024-030
470024-034
Korea470024-039
N16C933X415V012L8
European470024-080
United States470024-041
470024-036
470024-073
Maintenance and Service Guide1–5
Product Description
Table 1-1
Compaq Notebook Evo N160
Models and Model Naming Conventions (Continued)
N16C933X415VC12L2
France470024-049Norway470024-066
Greece / Poland470024-056People’s
Republic of
China
Hong Kong470024-028
470024-027
Spain470024-071
470024-037
Italy470024-059Sweden /
Finland
Japan470024-035United Kingdom470024-078
The Netherlands470024-063
N16C933X310DC12L8
Asia / Pacific / Thailand470023-996People’s
Republic of
China
Belgium470024-001Portugal470024-012
Czech Republic470024-002Russia470024-014
Denmark470024-003Slovakia /
Slovenia
France470024-004Spain470024-017
French Canada470023-998Swedish /
Finnish
Germany470024-006Taiwan470023-995
Hong Kong470023-992Turkey470024-024
Hungary470024-008United Kingdom470024-025
Israel470024-009United States470023-997
470024-075
470024-038
470024-015
470024-021
Italy470024-010
1–6Maintenance and Service Guide
Table 1-1
Compaq Notebook Evo N160
Models and Model Naming Conventions (Continued)
N16C933X310DC12L2
Product Description
France470024-005Swedish /
Finnish
Germany470024-007People’s
Republic of
China
Italy470024-011Taiwan470023-994
Spain470024-018Hong Kong470023-993
470024-022
470024-040
Maintenance and Service Guide1–7
Product Description
1.1 Features
■1.2-, 1.13-, 1.06-, 1.0-GHz or 933- or 866-MHz Intel
Pentium III Processor, with 512-KB integrated L2 cache, or
933- or 866-MHz Intel Celeron Processor with 128-KB
integrated L2 cache, varying by computer model
■ATI Mobility Radeon with 64-bit video graphics, 8-MB
double date rate (DDR) SDRAM, 4X AGP graphics card
■128-MB high-performance Synchronous DRAM (SDRAM),
expandable to 1024 MB
■Microsoft Windows 98, Windows XP Home, or
Windows 2000 preinstalled, varying by computer model
■14.1-inch, SXGA or 14.1- or 13.3-inch, XGA, TFT
(1024 × 768) display, with over 16.7 million colors, varying
by computer model
■Full-size keyboard with TouchPad pointing device
■Network interface card (NIC) integrated on system board,
with mini PCI V.90 modem
■Support for one Type II PC Card slot with support for both
32-bit CardBus and 16-bit PC Cards
■External AC adapter with power cord
■8-cell Lithium ion (Li ion) battery pack
■48-, 30-, 20-, 15-, or 10-GB high-capacity hard drive, varying
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 computer for disassembly (refer to Section 5.3,
“Preparing the Computer for Disassembly,” for more
information).
2. Remove the RTC battery (refer to Section 5.13, “Disk Cell
RTC Battery”).
3. Wait approximately five minutes.
4. Replace the RTC battery and reassemble the computer.
5. Connect AC power to the computer. Do not reinsert any
battery packs at this time.
6. Turn on the computer.
All passwords and all CMOS settings have been cleared.
1–10Maintenance and Service Guide
1.3 Power 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 level of performance
■Smart battery that provides an accurate battery power gauge
■Battery calibration
■Lid switch suspend/resume
■Power/suspend button
■Advanced Configuration and Power Management (ACP)
compliance
Product Description
Maintenance and Service Guide1–11
Product Description
1.4 Computer External Components
The external components on the front and right side of the
computer are shown in Figure 1-2 and described in Table 1-1.
.
Figure 1-2. Front and Right Side Components
1–12Maintenance and Service Guide
Product Description
Table 1-1
Front and Right Side Components
ItemComponentFunction
1Display release latchOpens the computer.
2Stereo speakersProduce stereo sound.
3Drive indicator lightTurns on when the hard drive, CD-, or
DVD-ROM drive is accessed.
4Battery lightOn: A battery pack is charging.
Blinking: A battery pack that is the only
available power source has reached a
low-battery condition.
5Battery bayAccepts a 9- or 6-cell Lithium ion (li ion)
battery pack.
6Modular media bayAccepts a diskette drive or optical drive.
Maintenance and Service Guide1–13
Product Description
The computer rear panel and left side components are shown in
Figure 1-3 and described in Table 1-2.
Figure 1-3. Rear Panel and Left Side Components
Table 1-2
Rear Panel and Left Side Components
ItemComponentFunction
1RJ-45 jack (network
models only)
2RJ-11 jack (internal
modem models only)
3USB connectors (2)Connects USB devices.
4S-Video connectorConnects a television, VCR, camcorder, or
5Parallel connectorConnects a parallel device.
6External monitor
connector
1–14Maintenance and Service Guide
Connects the network cable. A network
cable is not included with the computer.
Connects the modem cable to an internal
modem. A modem cable is included with
internal modem models.
overhead projector.
Connects an external monitor or overhead
projector.
Product Description
Table 1-2
Rear Panel and Left Side Components (Continued)
ItemComponentFunction
71394 jackConnects IEEE 1394-compliant products,
such as digital camcorders, video editing
equipment, VCRs, cameras, and audio
players. A 1394 firewire cable is required for
use with this jack.
8DC power jackConnects any one of the following:
■AC adapter
■Optional automobile power
adapter/charger
■Optional aircraft power adapter
9Stereo speaker/
headphone jack
10Mono microphone jackConnects a mono microphone, disabling the
11Security cable slotAttaches an optional security cable to the
12VentAllows airflow to cool internal components.
13PC Card slotSupports a 32-bit (CardBus) or 16-bit
14PC Card eject buttonEjects a PC Card from the PC Card slot.
15Hard drive baySupports the removable primary hard drive.
Connects stereo speakers, headphones,
headset, or television audio.
built-in microphone.
computer.
CAUTION: To prevent damage, the
Ä
computer shuts down if an
overheating condition occurs. Do
not block the cooling vent. Avoid
placing the computer on a blanket,
rug, or other flexible surface that
may cover the vent area.
PC Card.
The hard drive is secured to the computer
by one screw.
Maintenance and Service Guide1–15
Product Description
The keyboard components are shown in Figure 1-4 and described
in Table 1-3.
Figure 1-4. Keyboard Components
1–16Maintenance and Service Guide
Tabl e 1-3
Keyboard Components
ItemComponentFunction
Product Description
1
2
3
4Windows logo keyDisplays Windows Start menu.
5Windows application
6Cursor control keysMove the cursor around the screen.
7Embedded numeric
F1 through F12
function keys
Caps lock keyTurns on the caps lock function.
Fn keyUsed with hotkeys to perform preset hotkey
key
keypad
Perform preset functions.
functions.
Displays a menu when using a Microsoft
application. The menu is the same one that
is displayed by pressing the right mouse
button.
Converts keys to numeric keypad.
Maintenance and Service Guide1–17
Product Description
The components on the top of the computer are shown in
Figure 1-5 and described in Table 1-4.
Figure 1-5. Top Components
Table 1-4
Top Components
ItemComponentFunction
1VentAllows airflow to cool internal components.
CAUTION: To prevent damage, the
Ä
computer shuts down if an
overheating condition occurs. Do
not block the cooling vent. Avoid
placing the computer on a blanket,
rug, or other flexible surface that
may cover the vent area.
2Volume control buttonsAdjust the volume of the stereo speakers.
3Digital audio buttonLaunches Windows Media Player to play
MP3 music.
1–18Maintenance and Service Guide
Table 1-4
Top Components (Continued)
ItemComponentFunction
Product Description
4Power buttonTurns on the computer. Use the operating
5Easy Access buttonsProvide quick access to the Internet. Refer
6Power lightOn: Power is turned on.
7Num lock lightOn:
8Caps lock lightOn: Caps lock is on.
9Scroll lock lightOn:
10Display lid switchTurns off the computer display if the
11TouchPadMoves the mouse cursor, selects, and
12Left and right
TouchPad buttons
13Easy Scroll buttonScrolls the screen left, right, up, and down.
14Drive indicator lightTurns on when the hard drive, CD-, or
system Shut Down command to turn off the
computer.
to the Hardware Guide that ships with the
computer for information about these
buttons.
Blinking: Computer is in Standby. The
power light also blinks if a battery pack that
is the only available power source reaches
a low-battery condition.
Num lock is on and the embedded
numeric keypad is enabled.
Scroll is on.
computer is closed while on.
activates.
Function like the left and right mouse
buttons on an external mouse.
DVD-ROM drive is accessed.
15Battery lightOn: A battery pack is charging.
Blinking: A battery pack that is the only
available power source has reached a
low-battery condition.
Maintenance and Service Guide1–19
Product Description
The external components on the bottom of the computer are
shown in Figure 1-6 and described in Table 1-5.
Figure 1-6. Bottom Components
Table 1-5
Bottom Components
ItemComponentFunction
1Hard drive retention screwSecures the hard drive to the
computer.
2Hard drive baySupports the removable primary
hard drive. The hard drive is
secured to the computer by one
screw.
1–20Maintenance and Service Guide
Table 1-5
Bottom Components (Continued)
ItemComponentFunction
Product Description
3Memory expansion
compartment cover
4Docking connectorConnects the computer to an
5Stereo speakersProduce stereo sound.
6Serial numberIdentifies the computer; needed
7Certificate of Authenticity labelContains the Product Key, which
8Battery bayAccepts a 9- or 6-cell Lithium ion
9Battery pack release switchReleases the battery pack from
10Modular media bayAccepts a diskette drive or optical
11Modular media bay
release switch
Covers the memory expansion
compartment that contains two
memory expansion slots for
memory expansion boards.
optional port replicator.
when you call Compaq customer
support.
may need to be entered before
using some Windows operating
systems.
(li ion) battery pack.
the battery compartment.
drive.
Releases the modular media bay
device from the connector.
Maintenance and Service Guide1–21
Product Description
1.5 Design 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:
■Memory expansion board
■Hard drive
■Display
■Keyboard/TouchPad or pointing stick
■Audio
■Intel Pentium III processors
■Fan
■PC Card
■Modem or modem/NIC
The computer uses an electrical 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 applications.
Exhaust air is displaced through the ventilation grill located on
the left side of the computer.
CAUTION: To properly ventilate the computer, allow at least a
Ä
3-inch (7.6 cm) clearance on the left and right sides of the
computer.
1–22Maintenance and Service Guide
Troubleshooting
WARNING: Only authorized technicians trained by Compaq should
Å
repair 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, no one should attempt to make repairs at the
component level or make 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.
Utilities that are preinstalled on the computer include:
■PhoenixBIOS Setup Utility—Allows you to modify or
restore factory default settings and configure the system
BIOS to diagnose and solve minor problems.
■Power Management—Allows you to reduce your computer
power consumption.
2
■Security—Allows you to set or remove your power-on
password.
Using the PhoenixBIOS Setup Utility
The PhoenixBIOS Setup Utility (PSU) is built into the system.
You can configure the system BIOS and modify or restore factory
default settings, such as date and time, types of disk drives, power
management, and password settings. To run PSU, press the
key during system startup. When the main screen displays, use
the keyboard and arrow keys to move around the menus and make
selections.
Maintenance and Service Guide2–1
F10
Troubleshooting
Troubleshooting Flowcharts
Table 2-1
Troubleshooting Flowcharts Overview
SectionDescription
2.1Initial troubleshooting
2.2No power, part 1
2.3No power, part 2
2.4No power, part 3
2.5No power, part 4
2.6No video, part 1
2.7No video, part 2
2.8Nonfunctioning docking station
2.9No operating system (OS) loading
2.10No OS loading from hard drive, part 1
2.11No OS loading from hard drive, part 2
2.12No OS loading from hard drive, part 3
2.13No OS loading from diskette drive
2.14No OS loading from CD- or DVD-ROM drive
2.15No audio, part 1
2.16No audio, part 2
2.17Nonfunctioning device
2.18Nonfunctioning keyboard
2.19Nonfunctioning pointing device
2.20No network or modem connection
2–2Maintenance and Service Guide
Initial Troubleshooting
Begin
Troubleshooting.
N
Is there
power?
Y
N
Beeps,
LEDs, or error
Messages?
Y
N
Is there video?
(no boot)
Y
N
Is the OS
loading?
Y
N
Is there
sound?
Y
Go to
Section 2.2,
No Power.
Check
LED board,
speaker
connections.
Go to
Section 2.6,
No Video.
Go to
Section 2.9,
No OS Loading.
Go to
Section 2.15,
No Audio.
Y
Y
Connecting
or modem?
Y
All drives
working?
Keyboard/
pointing
device
working?
to network
End
Troubleshooting
N
Nonfunctioning
N
Nonfunctioning
or Section 2.19,
Nonfunctioning
Pointing Device.
N
Go to
Section 2.17,
Device.
Go to
Section 2.18,
Keyboard,
Go to
Section 2.20,
No Network
or Modem
Connection.
Maintenance and Service Guide2–3
Troubleshooting
2.2 No Power, Part 1
No Power
(Power LED is off)
Remove from
docking station
if applicable.
N
Power up
on battery
power?
*Reset
power.
Y
N
Power up
on AC
power?
*Reset
power.
Y
Y
Power up
in docking
station?
Done
N
1. Reseat power cables in docking station
and at the AC outlet.
2. Ensure the AC power source is active.
3. Ensure the power strip is working.
YN
Done
Power up
in docking
station?
N
Power up
on battery
power?
Go to
Section 2.3,
No Power,
Part 2.
Y
N
Power up
on AC
power?
Go to
Section 2.4,
No Power,
Part 3.
Y
*Notes:
1. On some models, there is a separate res
button.
2. On some models, the computer may be
reset using the Standby switch and eithe
the lid switch or the main power switch.
Go to
Section 2.8,
Nonfunctioning
Docking Station.
2–4Maintenance and Service Guide
2.3 No Power, Part 2
Continued from
Section 2.2,
No Power, Part 1.
Visually check for
debris in battery
socket and clean
if necessary.
Y
Troubleshooting
Power on?
N
Check battery by
recharging,
moving it to
anothercomputer,
or replacing it.
Power on?
Y
Done
Done
N
Replace power
supply (if
applicable).
N
Go to
Power on?
Section 2.4,
No Power,
Part 3.
Y
Done
Maintenance and Service Guide2–5
Troubleshooting
2.4 No Power, Part 3
Continued from
Section 2.3,
No Power, Part 2.
Plug directly
into AC outlet.
Y
Power LED
on?
N
Reseat AC adapter
in computer and
at power source.
Power on?
N
Power outlet
active?
Y
Replace
power cord.
Power on?
Done
Y
Done
N
Try different
outlet.
Internal or
external AC
Internal
Section 2.5,
No Power,
Y
DoneDone
adapter?
Go to
Part 4.
External
Replace external
AC adapter.
N
Power on?
Y
N
2–6Maintenance and Service Guide
2.5 No Power, Part 4
Continued from
Section 2.4,
No Power, Part 3.
Open
computer.
Troubleshooting
Loose or
damaged
parts?
N
Close
computer and
retest.
Power on?
Y
Done
Y
Reseat loose
components and
boards and
replace
damaged items.
N
Replace the following items, if applicable.
Check computer operation after each
replacement:
1. Internal DC-DC converter*
2. Internal AC adapter
3. Processor board*
4. System board*
*Replace these items as a set to prevent
shorting out among components.
Maintenance and Service Guide2–7
Troubleshooting
2.6 No Video, Part 1
No Video
Docking
Station
Stand-alone
or Docking
Station?
Go to
Section 2.7,
No Video, Part 2.
*Note: To change from internal to
external display, use the hotkey
combination.
Standalone
Y
Internal or
external
display*?
External
Adjust
brightness.
Internal
Y
Video OK?Done
N
Check for bent
pins on cable.
Adjust
brightness.
Video OK?Done
N
A
Depress lid
switch to ensure
operation.
Y
Video OK?Done
N
Replace the following one at a time. Test after each replacement.
1. Cable between notebook and computer display (if applicable)
2. Inverter board (if applicable)
3. Display
4. System board
NN
Video OK?
Try
another
display.
Internal and
external
video OK?
Replace
system
board.
YY
Done
2–8Maintenance and Service Guide
Done
2.7 No Video, Part 2
Continued from
Section 2.6,
No Video, Part 1.
Remove
notebook from
docking station,
if connected.
Troubleshooting
Adjust
display
brightness.
N
Video OK?
Y
Check for notebook properly
seated in docking station, bent
pins on cable, and for monitor
connection.
Y
Video OK?
N
Adjust external
monitor display.
Go to “A” in
Section 2.6,
No Video, Part 1.
Done
Check brightness
of external
monitor.
Video OK?
N
Try another
external
monitor.
Internal
and external
video OK?
N
Go to Section 2.8,
Nonfunctioning
Docking Station.
Y
Done
Y
Done
Maintenance and Service Guide2–9
Troubleshooting
2.8 Nonfunctioning Docking Station
(if applicable)
Nonfunctioning
docking station
Reseat power
cord in docking
station and
power outlet.
Check voltage
setting on
docking station.
Reset monitor
cableconnectorat
docking station.
Docking
station
operating?
N
Remove
notebook, reseat
all internal parts,
and replace any
damageditemsin
docking station.
Reinstall
notebook into
docking station.
Y
Docking
station
operating?
Done
N
Y
Done
Replacethesedocking stationcomponents
one at a time. Check computer operation
after each replacement.
1. Power supply
2. I/O board
3. Backplane board
4. Switch box
5. Docking motor mechanism
2–10Maintenance and Service Guide
2.9 No Operating System (OS) Loading
No OS
loading*
Reseat power
cord in docking
station and
power outlet.
No OS loading
from hard drive,
go to
Section 2.10.
No OS loading
form diskette
drive, go to
Section 2.13.
No OS loading
from CD- or
DVD-ROM drive,
go to
Section 2.14.
Troubleshooting
No OS loading
from network,
go to
Section 2.20.
*Before beginning, always check cable
connections, cable ends, and drives for bent
or damaged pins.
Maintenance and Service Guide2–11
Troubleshooting
2.10 No OS Loading from Hard Drive, Part 1
OS not
loading from
hard drive.
Nonsystem
disk message?
N
Reseat
external
hard drive.
OS loading?
N
Boot
from
CD?
Y
Check the setup
utility for correct
booting order.
Y
Go to
Section 2.11,
No OS Loading
from Hard Drive,
Part 2.
Y
Done
N
N
Boot
from
diskette?
Y
Go to
Section 2.13,
No OS
Loading from
Diskette Drive.
N
Boot
from
hard drive?
Y
Done
Change boot
priority through
the setup utility
and reboot.
Boot
from
hard drive?
N
Go to
Section 2.17,
Nonfunctioning
Device.
Y
2–12Maintenance and Service Guide
Troubleshooting
2.11 No OS Loading from Hard Drive, Part 2
Continued from
Section 2.10,
No OS Loading
from Hard Drive,
Part 1.
CD or
diskette in
drive?
Y
Remove
diskette and
reboot.
N
1. Replace hard
drive.
2.Replace system
board.
Reseat
hard drive.
Y
Hard drive
accessible?
N
Run FDISK.
Done
Boot
from
hard drive?
N
Boot
from diskette
drive?
Y
Hard drive
accessible?
Y
Go to
Section 2.12,
No OS Loading
from Hard Drive,
Part 3.
Y
N
N
Done
Go to
Section 2.13,
No OS Loading
from Diskette
Drive.
Done
Hard drive
partitioned?
Y
Hard drive
formatted?
Y
Y
Computer
booted?
Go to
Section 2.12,
No OS Loading
from Hard Drive,
Part 3.
N
Create partition,
then format hard
drive to bootable
C:\ prompt.
N
Formatharddrive
and bring to a
bootable C:\
prompt.
Load OS using
Restore CD if
N
applicable.
Maintenance and Service Guide2–13
Troubleshooting
2.12 No OS Loading from Hard Drive, Part 3
Continued from
Section 2.11,
No OS Loading
from Hard Drive,
Part 2.
N
System
files on hard
drive?
Y
Install OS
and reboot.
Virus
on hard
drive?
N
Run SCANDISK
and check for
bad sectors.
Can bad
sectors
be fixed?
Y
Fix bad
sectors.
Y
Clean virus.
OS
loading from
hard drive?
Y
Done
N
Y
Diagnostics
on diskette?
Replace
hard drive.
N
N
Replace
hard drive.
Run diagnostics
and follow
recommendations.
N
Boot from
hard drive?
Replace
hard drive.
Y
Done
2–14Maintenance and Service Guide
2.13 No OS Loading from Diskette Drive
Y
Troubleshooting
OS not loading
from
diskette drive.
Nonsystem
disk message?
Boot
from another
device?
Y
Diskette
drive enabled
in the setup
utility?
Y
Y
N
N
Reseat
diskette drive.
Go to
Section 2.17,
Nonfunctioning
Device.
Enable drive
andcoldboot
computer.
OS
loading?
N
Bootable
diskette
in drive?
YN
Check diskette
for system files.
Try different
diskette.
Nonsystem
disk error?
N
Done
N
Install bootable
diskette and
reboot computer.
Y
1. Replace
diskette drive.
2.Replace system
board.
Y
Clear CMOS.
Diskette
drive boot
order?
Change boot
priority using
the setup utility.
Maintenance and Service Guide2–15
Refer to Section
1.2, “Clearing a
Password,” for
instructions.
Go to
Section 2.17,
Nonfunctioning
Device.
OS
loading?
NN
Y
Done
Troubleshooting
Y
N
2.14 No OS Loading from CD- or
DVD-ROM Drive
No OS
loading from
CD- or
DVD-ROM drive.
Boots from
CD or DVD?
N
Reseat
drive.
N
Y
N
Y
Disc
in drive?
Install
bootable disc.
Done
Boots from
CD or DVD?
Booting
from another
device?
Y
Y
N
Bootable
disc in
drive?
Tryanother
bootable
disc.
Done
Go to
Section 2.17,
Nonfunctioning
Device.
Install bootable
disc and
reboot
computer.
Y
Booting
order
correct?
N
Correct boot
order using
the setup utility.
2–16Maintenance and Service Guide
Clear CMOS.
Refer to Section
1.2, Clearing a
Password, for
instructions.
Go to
Section 2.17,
Nonfunctioning
Device.
2.15 No Audio, Part 1
Y
Turn up audio
No audio
internally or
externally.
Troubleshooting
Audio?Done
N
Notebook in
docking station
(if applicable)?
N
Go to
Section 2.16,
No Audio, Part 2.
Y
Undock
Replace the following docking station
components one at a time as applicable.
Check after each change.
1. Reseat docking station audio cable.
2. Replace audio cable.
3. Replace speaker.
4. Replace docking station audio board.
5. Replace backplane board.
Go to
Section 2.17,
Nonfunctioning
Device.
N
Internal
audio?
Y
Y
Audio?Done
N
Go to
Section 2.16,
No Audio, Part 2.
Maintenance and Service Guide2–17
Troubleshooting
2.16 No Audio, Part 2
Continued from
Section 2.15,
No Audio, Part 1.
N
Audio
driver in OS
configured?
Y
N
Correct
drivers for
application?
Y
Connect to
external
speaker.
Reload
audio drivers.
Load drivers and
set configuration
in OS.
Replace audio
board and
Audio?
YN
2–18Maintenance and Service Guide
speaker
connections in
notebook, if
applicable.
1. Replace internal speakers.
2. Replace audio board, if applicable.
3. Replace system board.
Audio?Done
YN
2.17 Nonfunctioning Device
Nonfunctioning
device
Reseat
device.
Unplug the nonfunctioning device
from the notebook, inspect cables
and plugs for bent or broken pins or
Clear
CMOS.
other damage.
Any
physical
device?
N
Troubleshooting
Y
Fix or
replace
broken item.
Reattach device.
Close notebook,
plug in power,
and reboot.
N
Device
boots
properly?
Y
Done
Maintenance and Service Guide2–19
Possiblebadhard
drive. Replace
drive.
Possible bad NIC.
Replace card. If
integrated NIC,
replace system
board.
Possible bad
diskette drive.
Replace drive.
Go to
Section 2.9,
No OS Loading.
Device
boots
properly?
Y
Done
N
Troubleshooting
2.18 Nonfunctioning Keyboard
Keyboard
not operating
properly.
Connectnotebook
to good external
keyboard.
N
External
device
works?
Y
Reseat internal
keyboard
connector (if
applicable).
Replace
system
board.
N
OK?
Replace internal
keyboard or
cable.
Y
Y
DoneDone
OK?
N
Replace
system
board.
2–20Maintenance and Service Guide
2.19 Nonfunctioning Pointing Device
Pointing device
not operating
properly.
Connectnotebook
to good external
pointing device.
N
External
device
works?
Y
Reseat internal
pointing device
connector (if
applicable).
Replace
system
board.
Troubleshooting
N
Replace internal
OK?
pointingdeviceor
cable.
Y
Y
DoneDone
OK?
N
Replace
system
board.
Maintenance and Service Guide2–21
Troubleshooting
2.20 Network or Modem Connection Problems
No network
or modem
connection.
N
Network
or modem jack
active?
Y
Digital
line?
N
NIC/modem
configured in OS?
Replace jack or
Y
to non-digital
N
have jack
activated.
Connect
line.
Reload
drivers and
reconfigure.
OK?
Y
Done
Y
Disconnect all
power from
the notebook
and open.
N
Replace
NIC/modem if
applicable.
Y
Reseat
NIC/modem if
applicable.
OK?Done
N
Replace
system
board.
2–22Maintenance and Service Guide
Illustrated Parts Catalog
This chapter provides an illustrated parts breakdown and a
reference for spare part numbers and option part numbers.
3.1 Serial Number Location
When ordering parts or requesting information, provide the
computer serial number and model number located on the bottom
of the computer (Figure 3-1).
3
Figure 3-1. Serial Number Location
Maintenance and Service Guide3–1
Illustrated Parts Catalog
3.2 Computer System Major Components
p
Figure 3-2. Computer System Major Components
3–2Maintenance and Service Guide
Spare Parts: Computer System Major Components
ItemDescription
1Display
Illustrated Parts Catalog
Table 3-1
Spare Part
Number
14.1-inch, SXGA, CTFT
14.1-inch, XGA, CTFT
13.3-inch, XGA, CTFT
Plastics and Hardware Kit, includes:251365-001
2a
2b
2c
2d
2e
2f
2g
2h
2i
2j
2k
2l
3Keyboards
Switch cover
Left hinge cover
Right hinge cover
Keyboard shield
Left display support
Right display support
Disk cell RTC battery
Hard drive bracket
Hard drive shield
Hard drive sleeve
Memory expansion compartment cover
Docking connector cover
Belgian
Brazilian
Danish
French
French
Canadian
German
International
Italian
Japanese
Korean
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
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.
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.
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, then shut it down.
■Before removing a diskette drive or optical drive, ensure that
a diskette or disc is not in the drive. 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 that have at least one inch of
shock-proof foam.
■Avoid dropping drives from any height onto any surface.
■After removing a hard drive, CD-ROM drive, or a diskette
drive, place it into 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 to liquids.
■If a drive must be mailed, place the drive into 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.
The device may function normally for awhile, then degrade in the
internal layers, reducing its life expectancy.
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.
4–4Maintenance and Service Guide
Removal and Replacement Preliminaries
■Place reusable electrostatic-sensitive parts from assemblies in
protective packaging or nonconductive foam.
■Use transporters and conveyers 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.
4.6 Workstation Precautions
Use the following grounding precautions at workstations:
■Cover the workstation with approved static-dissipative
material (refer to Table 4-2).
■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 using fixtures that must directly contact dissipative
surfaces, only use fixtures made 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.
Maintenance and Service Guide4–5
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,
connect a wrist strap with alligator clips.
■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-megaohm
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-megaohm resistance
■Static-dissipative table or floor mats with hard tie to ground
■Field service kits
■Static awareness labels
■Material-handling packages
4–6Maintenance and Service Guide
Removal and Replacement Preliminaries
■Nonconductive plastic bags, tubes, or boxes
■Metal tote boxes
■Electrostatic voltage levels and protective materials
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 volts.
✎
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
Maintenance and Service Guide4–7
5
Removal and Replacement
Procedures
This chapter provides removal and replacement procedures.
Phillips P0 and P1 screws are removed and loosened during
disassembly. There are 41 screws, in 10 different sizes, that must
be removed and replaced when servicing the computer. Make
special note of each screw size and location during removal
and replacement.
Refer to Appendix C, “Screw Listing,” for detailed information
on screw sizes, locations, and usage.
Maintenance and Service Guide5–1
Removal and Replacement Procedures
5.1 Serial Number
Report the computer serial number to Compaq when requesting
information or ordering spare parts. The serial number is located
on the bottom of the computer (Figure 5-1).
Figure 5-1. Serial Number Location
5–2Maintenance and Service Guide
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.
Table 5-1
Disassembly Sequence Chart
SectionDescription# of Screws Removed
5.3Preparing the computer for disassembly0
Battery pack0
Hard drive1 hard drive retention
screw
4 securing hard drive to
hard drive sleeve
Modular media bay device0
5.4Memory expansion board1
5.5Computer feet0
5.6Switch cover2
5.7Keyboard2
5.8Fan assembly4 (spring-loaded
and captured by fan
assembly)
5.9Processor0
5.10Display6
5.11Top cover12
5.12Speaker assembly2
5.13Disk cell RTC battery0
5.14Mini PCI communications board0
5.15Sub I/O board2
5.16System board5
Maintenance and Service Guide5–3
Removal and Replacement Procedures
5.3 Preparing the Computer for
Disassembly
Perform the following steps before disassembling the computer.
1. Turn off the computer.
2. Disconnect the AC adapter and all external devices.
3. Remove the battery pack by following these steps:
a.Turn the computer bottom side up with the front
facing you.
b. Slide and hold the battery release latch toward the back of
the computer 1 (Figure 5-2).
c.Use the notch in the battery bezel to slide the battery pack
to the left 2.
d. Remove the battery pack.
Figure 5-2. Removing the Battery Pack
Reverse the above procedure to install the battery pack.
5–4Maintenance and Service Guide
Removal and Replacement Procedures
4. Remove the hard drive by following these steps:
a.Turn the computer bottom side up with the front
facing you.
b. Remove the silver M3 × 8 screw 1 (Figure 5-3).
c.Use a thin flat tool (screwdriver, case utility tool) to slide
the front edge of the hard drive sleeve to the right 2.
d. Remove the hard drive.
Figure 5-3. Removing the Hard Drive
Reverse the above procedure to install the hard drive.
Maintenance and Service Guide5–5
Removal and Replacement Procedures
If the hard drive must be removed from the hard drive sleeve,
perform the following steps:
a.Remove the four black M3 × 4 screws 1 that secure the
hard drive to the hard drive sleeve (Figure 5-4).
b. Lift the hard drive straight up to remove it from the hard
drive sleeve 2.
c.Note the orientation and position of the hard drive
shield 3 when removing the hard drive from the hard
drive sleeve.
The hard drive sleeve and shield are included in the Plastics and
✎
Hardware Kit (spare part number 251365-001).
Figure 5-4. Removing the Hard Drive from the Hard
Drive Sleeve
5–6Maintenance and Service Guide
Removal and Replacement Procedures
5. Remove a modular media bay device by following these
steps:
a.Turn the computer bottom side up with the front
facing you.
b. Slide and hold the
modular media bay release switch 1
toward the back of the computer (Figure 5-5).
c.Use the notch in the modular media bay device bezel 2
to slide the device to the left.
d. Remove the device.
Figure 5-5. Removing a Modular Media Bay Device
Reverse the above procedure to install a modular media bay
device.
Maintenance and Service Guide5–7
Removal and Replacement Procedures
5.4 Memory Expansion Board
1. Prepare the computer for disassembly (Section 5.3).
2. Turn the computer bottom side up with the front facing you.
3. Remove the silver M2 × 5 screw 1 that secures the memory
expansion compartment cover to the base enclosure
(Figure 5-6).
4. Use the notch in the front of the memory expansion
compartment cover to lift up the front edge of the cover and
swing it up and toward the back of the computer 2.
5. Remove the memory expansion compartment cover 3.
The memory expansion compartment cover is included in the
✎
Plastics and Hardware Kit (spare part number 251365-001).
Figure 5-6. Removing the Memory Expansion
Compartment Cover
5–8Maintenance and Service Guide
Removal and Replacement Procedures
6. Spread the memory expansion slot retaining tabs to release
the memory expansion board 1 (Figure 5-7).
7. The board tilts up at a 45-degree angle.
8. Remove the board by pulling it away from the connector at a
45-degree angle 2.
Figure 5-7. Removing a Memory Expansion Board
Reverse the above procedure to install a memory
expansion board.
Maintenance and Service Guide5–9
Removal and Replacement Procedures
5.5 Computer Feet
The computer feet are adhesive-backed rubber pads. The
computer feet are included in the Plastics and Hardware Kit
(spare part number 251365-001). Refer to Figure 5-8 for
computer feet locations.
Figure 5-8. Replacing the Computer Feet
5–10Maintenance and Service Guide
5.6 Switch Cover
The switch cover is included in the Plastics and Hardware Kit
✎
(spare part number 251365-001).
1. Prepare the computer for disassembly (Section 5.3).
2. Turn the computer bottom side up with the rear panel
facing you.
3. Remove the two black M2 × 9 screws (Figure 5-9).
Removal and Replacement Procedures
Figure 5-9. Removing the Switch Cover Screws
4. Turn the computer top side up with the front facing you.
5. Open the computer as far as it will open.
Maintenance and Service Guide5–11
Removal and Replacement Procedures
6. Press down and hold the Esc key 1 (Figure 5-10).
7. Use a small straight edge tool (screwdriver or tweezers) to
disengage the left side of the switch cover from the top
cover 2.
8. Remove the switch cover 3.
Figure 5-10. Removing the Switch Cover
Reverse the above procedure to install the switch cover.
5–12Maintenance and Service Guide
5.7 Keyboard
Spare Part Number Information
Removal and Replacement Procedures
Keyboards
Belgian
Brazilian
Danish
French
French Canadian
German
International
Italian
Japanese
Korean
2. Use a flat-blade screwdriver to turn the processor locking
screw 1 one-half turn counterclockwise (Figure 5-14).
3. Lift the processor straight up 2 to remove it from its socket.
When installing the processor, make sure the gold triangle
✎
symbol 3 is located in the lower left corner.
Figure 5-14. Removing the Processor
Reverse the above procedure to install the processor.
Maintenance and Service Guide5–19
Removal and Replacement Procedures
5.10 Display
Displays
Spare Part Number Information
14.1-inch, SXGA, CTFT
14.1-inch, XGA, CTFT
13.3-inch, XGA, CTFT
260604-001
260603-001
260602-001
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the switch cover (Section 5.6).
3. Close the computer.
4. Turn the computer top side up with the rear panel facing you.
5–20Maintenance and Service Guide
Removal and Replacement Procedures
5. Insert a small straight edge tool (screwdriver or tweezers) into
the notch 1 in the hinge cover and partially lift the hinge
cover 2 (Figure 5-15).
6. When the hooks 3 on the inside and outside edges of the
hinge covers are exposed, press in on the edges of the hinge
covers to disengage them from the top cover.
7. Remove the hinge covers 4.
The hinge covers are included in the Plastics and Hardware Kit
✎
(spare part number 251365-001).
8. Remove the four silver M2 × 10.5 screws 5 from the
computer rear panel.
Figure 5-15. Removing the Hinge Covers and Display Screws
Maintenance and Service Guide5–21
Removal and Replacement Procedures
9. Position the computer so the front faces you.
10. Open the computer as far as it will open.
11. Lift up the back edge of the keyboard and swing it forward
until it rests on the top cover.
12. Disconnect the display inverter 1 and video cables 2
(Figure 5-16).
When installing the display, route the display video cable through
✎
the clip 3 in the top cover.
Figure 5-16. Disconnecting the Display Cables
5–22Maintenance and Service Guide
Removal and Replacement Procedures
13. Remove the black M2 × 12 screw 1 that secures the left
display hinge (Figure 5-17).
Note the orientation and position of the display hinge bracket 2.
✎
Take special care not to lose this bracket when replacing the
display.
14. Remove the silver M2 × 10.5 screw 3 that secures the right
display hinge.
15. Lift the display straight up to remove it 4.
Figure 5-17. Removing the Display
Reverse the above procedure to install the display.
Maintenance and Service Guide5–23
Removal and Replacement Procedures
5.11 Top Cover
Top Cover
Spare Part Number Information
Top cover (includes TouchPad and TouchPad buttons)260606-001
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a.Switch cover (Section 5.6)
b. Keyboard and keyboard shield (Section 5.7)
c.Display (Section 5.10)
2. Turn the computer bottom side up with the rear panel
facing you.
5–24Maintenance and Service Guide
Removal and Replacement Procedures
3. Remove the eight black M2 × 9 screws 1 that secure the top
cover to the base enclosure (Figure 5-18).
4. Open the parallel and serial connector cover 2.
5. Remove the silver M2 × 6.5 screw 3 that secures the top
cover to the base enclosure through the rear panel.
Figure 5-18. Removing the Top Cover Screws
6. Turn the computer top side up with the front facing you.
Maintenance and Service Guide5–25
Removal and Replacement Procedures
7. Release the ZIF connector 1 to which the TouchPad cable is
attached and disconnect the TouchPad cable 2 from the
system board (Figure 5-19).
8. Remove the two black M2 × 9 screws 3 and the silver
M2 × 7 screw 4 that secures the top cover to the base
enclosure.
Figure 5-19. Disconnecting the TouchPad Cable and
Removing the Top Cover Screws
5–26Maintenance and Service Guide
Removal and Replacement Procedures
9. Lift the top cover straight up to remove it (Figure 5-20).
Figure 5-20. Removing the Top Cover
Reverse the above procedure to install the top cover.
Maintenance and Service Guide5–27
Removal and Replacement Procedures
5.12 Speaker Assembly
The left and right speakers are not interchangeable. The right
✎
speaker has a longer cable.
Speaker Assembly
Spare Part Number Information
Left speaker
Right speaker
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a.Switch cover (Section 5.6)
b. Keyboard and keyboard shield (Section 5.7)
c.Display (Section 5.10)
d. Top cover (Section 5.11)
251363-001
251364-001
5–28Maintenance and Service Guide
Removal and Replacement Procedures
2. Disconnect the speaker cables 1 from the system board
(Figure 5-21).
3. Remove the gold M2 × 5 screws 2 that secure the speaker
assemblies to the base enclosure.
4. Remove the speaker assemblies 3.
Figure 5-21. Removing the Speaker Assemblies
Reverse the above procedure to install the speaker assemblies.
Maintenance and Service Guide5–29
Removal and Replacement Procedures
5.13 Disk Cell RTC Battery
The disk cell RTC battery is included in the Plastics and
✎
Hardware Kit (spare part number 251365-001).
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a.Switch cover (Section 5.6)
b. Keyboard and keyboard shield (Section 5.7)
c.Display (Section 5.10)
d. Top cover (Sevtion 5-11)
2. Lift up the back edge of the RTC battery and remove it from
its socket on the system board (Figure 5-22).
Figure 5-22. Removing the Disk Cell RTC Battery
Reverse the above procedure to install the disk cell RTC battery.
5–30Maintenance and Service Guide
Removal and Replacement Procedures
5.14 Mini PCI Communications Board
Mini PCI Communications Boards
Spare Part Number Information
Mini PCI communications boards
Type III mini PCI 56-Kbps modem (domestic)
Type III mini PCI 56-Kbps modem (international)
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a.Switch cover (Section 5.6)
b. Keyboard and keyboard shield (Section 5.7)
c.Display (Section 5.10)
d. Top cover (Section 5.11)
259488-001
259489-001
Maintenance and Service Guide5–31
Removal and Replacement Procedures
2. Disconnect the communications cable from the mini PCI
communications board 1 (Figure 5-23).
3. Spread the retaining tabs to release the mini PCI
communications board 2.
The board tilts up at a 45-degree angle.
4. Remove the board by pulling it away from the connector at a
45-degree angle 3.
Figure 5-23. Removing the Mini PCI Communications Board
Reverse the above procedure to install the mini PCI
communications board.
5–32Maintenance and Service Guide
Removal and Replacement Procedures
5.15 Sub I/O Board
Sub I/O Board
Spare Part Number Information
Sub I/O board251381-001
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a.Switch cover (Section 5.6)
b. Keyboard and keyboard shield (Section 5.7)
c.Display (Section 5.10)
d. Top cover (Section 5.11)
Maintenance and Service Guide5–33
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