Compaq Evo n150 PC Manual

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Maintenance and Service Guide
Compaq Notebook Evo N150 Series
Document Part Number: 238849-001
June 2001
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.

© 2001 Compaq Computer Corporation
Compaq, the Compaq logo, Armada, and Deskpro Registered in U. S. Patent and
Trademark Office. Evo is a trademark of Compaq Information Technologies
Group, L.P. in the U.S. and other countries.
Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft
Corporation in the United States and other countries.
Intel, Pentium, and Celeron are trademarks of Intel Corporation in the
United States and other countries.
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 (June 2001)
Document Part Number: 238849-001

Maintenance and Service Guide iii
Contents
1 Product Description
1.1ModelsandFeatures ......................... 1–1
Models.................................... 1–2
Features................................... 1–5
1.2ClearingaPassword.......................... 1–6
1.3PowerManagement.......................... 1–7
1.3ExternalComputerComponents ................ 1–8
1.4DesignOverview........................... 1–18
2 Troubleshooting
UsingthePhoenixBIOSSetupUtility............... 2–2
Troubleshooting Flowcharts....................... 2–3
2.1 Initial Troubleshooting . ................... 2–4
2.2NoPower,Part1......................... 2–5
2.3NoPower,Part2......................... 2–6
2.4NoPower,Part3......................... 2–7
2.5NoPower,Part4......................... 2–8
2.6NoVideo,Part1 ......................... 2–9
2.7NoVideo,Part2 ........................ 2–10
2.8 Non Functioning Docking Station
(ifapplicable).............................. 2–11
2.9NoOperatingSystem(OS)Loading......... 2–12
2.10NoOSLoadingfromHardDrive,Part1..... 2–13
2.11NoOSLoadingfromHardDrive,Part2..... 2–14
2.12NoOSLoadingfromHardDrive,Part3..... 2–15
2.13NoOSLoadingfromDisketteDrive........ 2–16
2.14 No OS Loading from CD- or
DVD-ROMDrive .......................... 2–17

iv Maintenance and Service Guide
2.15NoAudio,Part1....................... 2–18
2.16NoAudio,Part2....................... 2–19
2.17NonFunctioningDevice................. 2–20
2.18NonFunctioningKeyboard............... 2–21
2.19NonFunctioningPointingDevice.......... 2–22
2.20NetworkorModemConnection ........... 2–23
3 Illustrated Parts Catalog
3.1SerialNumberLocation....................... 3–1
3.2 Computer System Major Components . ........... 3–2
3.3 Miscellaneous Plastics Kit Components .......... 3–8
3.4 Miscellaneous Hardware Kit Components......... 3–9
3.5 Cable Kit Components ....................... 3–10
3.6MassStorageDevices ....................... 3–11
3.7Miscellaneous.............................. 3–12
4 Removal and Replacement Preliminaries
4.1ToolsRequired.............................. 4–1
4.2ServiceConsiderations........................ 4–1
PlasticParts................................ 4–2
CablesandConnectors ....................... 4–2
4.3PreventingDamagetoRemovableDrives......... 4–2
4.4PreventingElectrostaticDamage................ 4–4
4.5PackagingandTransportingPrecautions.......... 4–4
4.6WorkstationPrecautions ...................... 4–5
4.7 Grounding Equipment and Methods . . ........... 4–6
5 Removal and Replacement Procedures
5.1SerialNumber .............................. 5–2
5.2DisassemblySequenceChart................... 5–3
5.3PreparingtheComputerforDisassembly ......... 5–4
5.4ComputerFeet.............................. 5–4
5.5HingeCovers............................... 5–5
5.6Keyboard .................................. 5–6
5.7Display.................................... 5–8

Maintenance and Service Guide v
5.8EMIShield................................ 5–10
5.9TopCover................................. 5–11
5.10TouchPad................................ 5–15
5.11Speakers................................. 5–18
5.12Microphone .............................. 5–21
5.13DisplayLidSwitchBoard................... 5–23
5.14HeatSink................................ 5–24
5.15InfraredBoard ............................ 5–26
5.16SystemBoard............................. 5–28
5.17PCCardAssembly......................... 5–33
5.18MiniPCIBoard ........................... 5–35
5.19DiskCellRTCBattery...................... 5–37
6 Specifications
A Connector Pin Assignments
B Power Cord Set Requirements
3-ConductorPowerCordSet......................B–1
GeneralRequirements........................B–1
Country-Specific Requirements . ...................B–2
Notes.....................................B–2
C Screw Listing
Index

Maintenance and Service Guide 1–1
1
Product Description
1.1 Models and Features
The Compaq Notebook Evo N150 Series offer advanced
modularity, Intel Pentium III and Intel Celeron processors with
64-bit architecture, industry-leading Accelerated Graphics Port
(AGP) implementation, and extensive multimedia support.
Figure 1-1. Compaq Notebook Evo N150

1–2 Maintenance and Service Guide
Product Description
Models
Computer models are shown in Table1-1.
Table 1-1
Compaq Notebook Evo N150
Models and Model Naming Conventions
Key
N15 P 800 T4X 15 V C 64 8L ME XXXXXX-XXX
123 45678910 11
Key Description Options
1 Brand / Series
designator
N=Notebook 15=150
2 Processor type P=Intel Pentium III C=Intel Celeron
3 Processor speed 800=800 MHz 700=700MHz
4Displaytype/
size / resolution
T=TFT
4=14.x-inch
X=XGA (1024 × 768)
5 Hard drive size 15=15.0 GB 10=10.0 GB
6 Optical drive
designator
V=8X Max
DVD-ROM drive
D=24X Max
CD-ROM drive
W=CD-RW
7 Integrated
communication
M=modem
0=none
C=modem/NIC
combination card
8RAM 64=64MB
9 Battery cells / type 8L=8 cells, Lithium
ion (Li ion)
9H=9 cells, Nickel
Metal-Hydride
(NMH)
10 Operating system ME=Windows Millennium Edition
11 SKU# All computer models use 470013-XXX as the
base SKU#.
All computer models use configuration code JQKZ.

Product Description
Maintenance and Service Guide 1–3
123 45678910 11
N15 P 800 T4X 15 V C 64 8L ME 470013-XXX
Belgium 470013-663 Norway 470013-668
Czech Republic 470013-735 Portugal 470013-748
Denmark 470013-664 Russia 470013-749
France 470013-737 Saudi Arabia 470013-734
French Canada 470013-662 Slovakia /
Slovenia
470013-669
Germany 470013-739 Spain 470013-751
Greece / Poland 470013-665 Sweden /
Finland
470013-670
Hungary 470013-741 Switzerland 470013-671
470013-672
Israel 470013-743 Turkey 470013-753
Italy 470013-745 United Kingdom 470013-754
Korea 470013-674 United States 470013-661
470013-726
The Netherlands 470013-747
N15 P 800 T4X 15 V 0 64 8L ME 470013-XXX
Europe 470013-728
N15 P 800 T4X 10 V C 64 8L ME 470013-XXX
Australia 470013-673
470013-727
Taiwan 470013-675
Japan 470013-691
470013-693
Table 1-1
Compaq Notebook Evo N150
Models and Model Naming Conventions
(Continued)

1–4 Maintenance and Service Guide
Product Description
123 45678910 11
N15 C 700 T4X 15 D C 64 8L ME 470013-XXX
Taiwan 470013-659
N15 C 700 T4X 10 D C 64 8L ME 470013-XXX
Asia / Pacific 470013-658 The Netherlands 470013-713
Australia 470013-731 Norway 470013-621
Belgium 470013-619 Portugal 470013-714
Czech Republic 470013-701 Russia 470013-718
Denmark 470013-620 Slovakia /
Slovenia
470013-622
France 470013-702 Spain 470013-719
Germany 470013-703 Sweden /
Finland
470013-623
Hungary 470013-705 Switzerland 470013-624
470013-625
Israel 470013-709 Turkey 470013-722
Italy 470013-712 United Kingdom 470013-723
Japan 470013-684
470013-685
United States 470013-617
470013-660
470013-730
N15 C 700 T4X 10 W C 64 8L ME 470013-XXX
Japan 470013-687 Taiwan 470013-688
N15 C 700 T4X 10 D C 64 9H ME 470013-XXX
French Canada 470013-618 Saudi Arabia 470013-700
N15 C 700 T4X 10 D 0 64 9H ME 470013-XXX
European 470013-724
Table 1-1
Compaq Notebook Evo N150
Models and Model Naming Conventions
(Continued)

Product Description
Maintenance and Service Guide 1–5
Features
 Processors, varying by computer model:
 800-MHz Intel Pentium III Processor with 256-KB
integrated cache
 700-MHz Intel Celeron Processor with 128-KB
integrated cache
 64-MB high-performance Synchronous DRAM (SDRAM),
expandable to 512 MB
 Integrated Trident CyberBlade i1 with AGP 2X support
 14.1-inch, XVGA, TFT (1024 × 768) display, with over 16.8
million colors
 15- or 10-GB high-capacity hard drive
 Full-size TouchPad keyboard
 Mini PCI 56K V.90 modem or optional Mini PCI V.90
modem plus 10/100 NIC combination card
 Support for two Type II PC Card slots with support for both
32-bit CardBus and 16-bit PC Cards
 Microsoft Windows Me, Windows 98, or Windows 2000
preinstalled
 External AC adapter with power cord
 8-cell Lithium ion (Li ion) battery pack

1–6 Maintenance and Service Guide
Product Description
 Connectors for:
 RJ-11 modem
 universal serial bus
 stereo line out/headphone
 parallel
 serial
 external keyboard/mouse
 RJ-45 network
 external monitor
 AC power
 Stereo speakers providing Compaq PremierSound 16-bit
stereo sound
1.2 Clearing a Password
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 5.19, “Disk Cell
Real Time Clock (RTC) Battery,” for more information.
3. Wait approximately five minutes.

Product Description
Maintenance and Service Guide 1–7
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 are clear.
1.3 Power Management
The computer comes with a collection of power management
features that extend battery operating time and conserve power.
The computer supports the following power management
features:
 Standby
 Hibernation
 Smart battery that provides an accurate battery power gauge
 Battery calibration
 Lid switch suspend/resume
 Power button
 Advanced Configuration and Power Management (ACP)
compliant

1–8 Maintenance and Service Guide
Product Description
1.3 External Computer Components
The external components on the front and left side of the
computer are shown in Figure 1-2 and described in Table 1-2.
.
Figure 1-2. Front and Left Side Components
Table 1-2
Front and Left Side Panel Components
Item Component Function
1 Security cable slot Attaches an optional security cable to the
computer.
2 Vent Allows airflow to cool internal components.
ÄCAUTION: To prevent damage, the
computer will shut down if a severe
overheating condition occurs. To
prevent loss of information, do not
block the cooling vent. Avoid
placing the computer on a blanket,
rug, or other flexible surface that
may cover the vent area.

Product Description
Maintenance and Service Guide 1–9
3 Air intake vent Cools internal components.
4 RJ-11 jack (internal
modem models only)
Connects the modem cable to an internal
modem. A modem cable is included with
internal modem models.
5 USB connector Connects USB devices.
6 PC Card slots (2) Support a 32-bit (CardBus) or 16-bit
PC Card.
7 PC Card eject buttons Eject a PC Card from a PC Card slot.
8Stereoline-out/
headphone jack
Connects stereo speakers, headphones,
headset, or television audio.
9 Stereo line-in jack Connects a CD player, tuner, or tape deck.
10 Power light On: Power is turned on.
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.
11 Battery light On: A battery pack is charging.
Blinking: A battery pack that is the only
available power source has reached a
low-battery condition.
12 Hard drive Supports the removable primary hard drive.
Two screws secure the hard drive to the
computer.
Table 1-2
Front and Left Side Panel Components (Continued)
Item Component Function

1–10 Maintenance and Service Guide
Product Description
The computer right side and rear panel components are shown in
Figure 1-3 and described in Table 1-3.
Figure 1-3. Right Side and Rear Panel Components
Table 1-3
Right Side and Rear Panel Components
Item Component Function
1 Media Bay Accepts a diskette drive, CD- or DVD-ROM
drive, or secondary battery pack.
2 Infrared port Links to another IrDA-compliant device for
wireless communication.

Product Description
Maintenance and Service Guide 1–11
3 Parallel connector Connects a parallel device.
4 Serial connector Connects a serial device.
5 Keyboard/mouse
connector
Connects an external keyboard or
PS/2-compatible external mouse.

To connect a keyboard and a
mouse at the same time, use an
optional Y-adapter.
6RJ-45jack(network
models only)
Connects the network cable. A network
cable is not included with the computer.
7 USB connectors Connect USB devices.
8 External monitor
connector
Connects an external monitor or overhead
projector.
9 DC power jack Connects any one of the following items:
 AC Adapter
 Optional Automobile Power
Adapter/Charger
 Optional Aircraft Power Adapter
Table 1-3
Right Side and Rear Panel Components (Continued)
Item Component Function

1–12 Maintenance and Service Guide
Product Description
The keyboard components are shown in Figure 1-4 and described
in Table 1-4.
Figure 1-4. Keyboard Components

Product Description
Maintenance and Service Guide 1–13
Table 1-4
Keyboard Components
Item Component Function
1F1 through F12
function keys
Perform preset functions.
2 Embedded numeric
keypad
Converts keys to numeric keypad.
3 Cursor control keys Move the cursor around the screen.
4 Windows application
key
DisplaysamenuwhenusingaMicrosoft
application. The menu is the same that is
displayed by pressing the right mouse
button.
5 Windows logo key Displays the Windows Start menu.
6Fn key Used with hotkeys to perform preset hotkey
functions.
7 Caps lock key Turns on the caps lock function.

1–14 Maintenance and Service Guide
Product Description
The components on the top of the computer are shown in
Figure 1-5 and described in Table 1-5.
Figure 1-5. Top Components
Table 1-5
Top Components
Item Component Function
1 Power button Turns on the computer. To turn off the
computer, use the operating system Shut
Down command.
2 Drive light indicator Turns on when the hard drive, CD-, or
DVD-ROM drive is accessed.

Product Description
Maintenance and Service Guide 1–15
3 Diskette drive light Turns on when the diskette drive in the
Media Bay or the optional external diskette
drive is accessed.
4 Num lock light On: Num lock is on and the embedded
numeric keypad is enabled.
5 Capslocklight On:Capslockison.
6 Scroll lock light On: Scroll is on.
7 Microphone Inputs single-channel sound to the
computer; can be used whether the
computer is open or closed.
8 Easy Access buttons (4) Four buttons that provide quick access to
the Internet. Refer to the
Hardware Guide
that ships with the computer for information
about these buttons.
9 Stereo speakers (2) Produce stereo sound.
10 Right TouchPad button Functions like the right mouse button on an
external mouse.
11 TouchPad Moves the mouse cursor, selects, and
activates.
12 Left TouchPad button Functions like the left mouse button on an
external mouse.
Table 1-5
Top Components (Continued)
Item Component Function