Compaq evo n160 Service Manual

Maintenance and Service Guide

Compaq Notebook Evo N160 Series

Document Part Number: 260552-001

October 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.

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

1 Product Description

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8

1.2 Clearing a Password. . . . . . . . . . . . . . . . . . . . . . . . . 1–10

1.3 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . 1–11

1.4 Computer External Components . . . . . . . . . . . . . . . 1–12

1.5 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–22

2 Troubleshooting

Using the PhoenixBIOS Setup Utility . . . . . . . . . . . . . . . 2–1

Troubleshooting Flowcharts. . . . . . . . . . . . . . . . . . . . . . . 2–2

Initial Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 2–3

2.2 No Power, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . . 2–4

2.3 No Power, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . . 2–5

2.4 No Power, Part 3 . . . . . . . . . . . . . . . . . . . . . . . . . 2–6

2.5 No Power, Part 4 . . . . . . . . . . . . . . . . . . . . . . . . . 2–7

2.6 No Video, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . . 2–8

2.7 No Video, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . . 2–9

2.8 Nonfunctioning Docking Station

(if applicable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10

2.9 No Operating System (OS) Loading . . . . . . . . . 2–11

2.10 No OS Loading from Hard Drive, Part 1. . . . . 2–12

2.11 No OS Loading from Hard Drive, Part 2. . . . . 2–13

2.12 No OS Loading from Hard Drive, Part 3. . . . . 2–14

2.13 No OS Loading from Diskette Drive. . . . . . . . 2–15

2.14 No OS Loading from CD- or

DVD-ROM Drive . . . . . . . . . . . . . . . . . . . . . . . . . . 2–16

2.15 No Audio, Part 1 . . . . . . . . . . . . . . . . . . . . . . . 2–17

Maintenance and Service Guide iii

Contents

2.16 No Audio, Part 2 . . . . . . . . . . . . . . . . . . . . . . . 2–18

2.17 Nonfunctioning Device . . . . . . . . . . . . . . . . . . 2–19

2.18 Nonfunctioning Keyboard . . . . . . . . . . . . . . . . 2–20

2.19 Nonfunctioning Pointing Device. . . . . . . . . . . 2–21

2.20 Network or Modem Connection Problems . . . 2–22

3 Illustrated Parts Catalog

3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . 3–1

3.2 Computer System Major Components. . . . . . . . . . . . 3–2

3.3 Plastics and Hardware Kit Components. . . . . . . . . . . 3–8

3.4 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . . 3–9

3.5 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–10

4 Removal and Replacement Preliminaries

4.1 Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1

4.2 Service Considerations. . . . . . . . . . . . . . . . . . . . . . . . 4–2

Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2

Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4–2

4.3 Preventing Damage to Removable Drives . . . . . . . . . 4–3

4.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . . 4–4

4.5 Packaging and Transporting Precautions . . . . . . . . . . 4–4

4.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 4–5

4.7 Grounding Equipment and Methods . . . . . . . . . . . . . 4–6

5 Removal and Replacement Procedures

5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2

5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . . 5–3

5.3 Preparing the Computer for Disassembly . . . . . . . . . 5–4

5.4 Memory Expansion Board . . . . . . . . . . . . . . . . . . . . . 5–8

5.5 Computer Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–10

5.6 Switch Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–11

5.7 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–13

5.8 Fan Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–16

5.9 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–18

5.10 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20

iv Maintenance and Service Guide

5.11 Top Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–24

5.12 Speaker Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–28

5.13 Disk Cell RTC Battery. . . . . . . . . . . . . . . . . . . . . . 5–30

5.14 Mini PCI Communications Board . . . . . . . . . . . . . 5–31

5.15 Sub I/O Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–33

5.16 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–36

6 Specifications

A Connector Pin Assignments

B Power Cord Set Requirements

3-Conductor Power Cord Set . . . . . . . . . . . . . . . . . . . . . . B–1

General Requirements . . . . . . . . . . . . . . . . . . . . . . . . B–1

Country-Specific Requirements . . . . . . . . . . . . . . . . . . . . B–2

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–2

Screw Listing

Index

Contents

Maintenance and Service Guide v

Product Description

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 Guide 1–1

Product Description

Models

Computer models are shown in Table1-1.

Table 1-1

Compaq Notebook Evo N160

Models and Model Naming Conventions

Key

N16 P 100 X4 20 V C 12 L 2 XXXXXX-XXX

123 45678910 11

Key Description Options

1 Brand / Series

designator

2 Processor type P=Intel Pentium III C=Intel Celeron

3 Processor speed 120=1.20 GHz

4 Display type /

size / resolution

N=Notebook 16=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

5 Hard drive size 48=48 GB

30=30 GB 20=20 GB

6 Optical drive

designator

7 Integrated

communication

8 RAM 12=128 MB

9 Battery cells / type L=8 cells, Lithium ion (Li ion)

10 Operating system 8=Windows 98 2=Windows 2000

11 SKU#

All computer models use configuration code KHYZ.

1–2 Maintenance 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 45678910 11

N16P100X420VC12 L 8

Arabic 470024-097 The Netherlands 470024-099

Australia 470024-980 Norway 470024-101

Belgium 470024-081 Portugal 470024-103

Czech Republic 470024-083 Russia 470024-105

Denmark 470024-085 Slovakia /

Slovenia

European 470024-070 Spain 470024-107

France 470024-087 Sweden /

Finland

French Canada 470023-990 Switzerland 470024-111

470024-106

470024-109

470024-113

Germany 470024-089 Turkey 470024-115

Greece / Poland 470024-091 United Kingdom 470024-117

Hong Kong 470023-984 United States 470023-988

470024-072

(NAFTA)

Korea 470024-050 Taiwan 470023-982

Latin America 470024-055

470024-065

(NAFTA)

Maintenance and Service Guide 1–3

Product Description

Table 1-1

Compaq Notebook Evo N160

Models and Model Naming Conventions (Continued)

N16P100X420VC12 L 2

Arabic 470024-098 Latin America 470024-058

470024-067

(NAFTA)

Australia 470024-981 The Netherlands 470024-100

Czech Republic 470024-084 Norway 470024-102

Denmark 470024-086 Portugal 470024-104

European 470024-082 Spain 470024-108

France 470024-088 Sweden /

Finland

French Canada 470023-991 Switzerland 470024-112

Germany 470024-090 Taiwan 470023-983

Hong Kong 470023-985 Turkey 470024-116

Italy 470024-096 United Kingdom 470024-118

Korea 470024-052 United States 470023-989

470024-110

470024-114

470024-074

(NAFTA)

1–4 Maintenance and Service Guide

Product Description

Table 1-1

Compaq Notebook Evo N160

Models and Model Naming Conventions (Continued)

N16 C 933 X4 15 V C 12 L 8

Australia 470024-079 The Netherlands 470024-061

Denmark 470024-044 Norway 470024-064

European 470024-043 People’s

Republic of China

France 470024-048 Portugal 470024-068

French Canada 470024-042 Sweden /

Finland

Germany 470024-051 Taiwan 470024-023

Greece / Poland 470024-054 Turkey 470024-076

Hong Kong 470024-026 United Kingdom 470024-077

Japan 470024-030

470024-034

Korea 470024-039

N16 C 933 X4 15 V 0 12 L 8

European 470024-080

United States 470024-041

470024-036

470024-073

Maintenance and Service Guide 1–5

Product Description

Table 1-1

Compaq Notebook Evo N160

Models and Model Naming Conventions (Continued)

N16 C 933 X4 15 V C 12 L 2

France 470024-049 Norway 470024-066

Greece / Poland 470024-056 People’s

Republic of China

Hong Kong 470024-028

470024-027

Spain 470024-071

470024-037

Italy 470024-059 Sweden /

Finland

Japan 470024-035 United Kingdom 470024-078

The Netherlands 470024-063

N16 C 933 X3 10 D C 12 L 8

Asia / Pacific / Thailand 470023-996 People’s

Republic of China

Belgium 470024-001 Portugal 470024-012

Czech Republic 470024-002 Russia 470024-014

Denmark 470024-003 Slovakia /

Slovenia

France 470024-004 Spain 470024-017

French Canada 470023-998 Swedish /

Finnish

Germany 470024-006 Taiwan 470023-995

Hong Kong 470023-992 Turkey 470024-024

Hungary 470024-008 United Kingdom 470024-025

Israel 470024-009 United States 470023-997

470024-075

470024-038

470024-015

470024-021

Italy 470024-010

1–6 Maintenance and Service Guide

Table 1-1

Compaq Notebook Evo N160

Models and Model Naming Conventions (Continued)

N16 C 933 X3 10 D C 12 L 2

Product Description

France 470024-005 Swedish /

Finnish

Germany 470024-007 People’s

Republic of China

Italy 470024-011 Taiwan 470023-994

Spain 470024-018 Hong Kong 470023-993

470024-022

470024-040

Maintenance and Service Guide 1–7

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

by computer model

1–8 Maintenance and Service Guide

Product Description

■ Connectors for:

❏ RJ-45 network

❏ RJ-11 modem

❏ Universal Serial Bus

❏ S-Video

❏ Parallel devices

❏ External monitor

❏ 1394 digital devices

❏ AC power

❏ Stereo line out/headphone

❏ Mono microphone

❏ QuickDock Port Replicator

■ Stereo speakers providing Compaq Premier·Sound™ 16-bit

stereo sound

Maintenance and Service Guide 1–9

Product Description

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 5.13, “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.

1–10 Maintenance 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 Guide 1–11

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

1–12 Maintenance and Service Guide

Product Description

Table 1-1

Front and Right Side Components

Item Component Function

1 Display release latch Opens the computer.

2 Stereo speakers Produce stereo sound.

3 Drive indicator light Turns on when the hard drive, CD-, or

DVD-ROM drive is accessed.

4 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.

5 Battery bay Accepts a 9- or 6-cell Lithium ion (li ion)

battery pack.

6 Modular media bay Accepts a diskette drive or optical drive.

Maintenance and Service Guide 1–13

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

Item Component Function

1RJ-45 jack (network

models only)

2 RJ-11 jack (internal

modem models only)

3 USB connectors (2) Connects USB devices.

4 S-Video connector Connects a television, VCR, camcorder, or

5 Parallel connector Connects a parallel device.

6 External monitor

connector

1–14 Maintenance 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)

Item Component Function

7 1394 jack Connects 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.

8 DC power jack Connects any one of the following:

■ AC adapter

■ Optional automobile power

adapter/charger

■ Optional aircraft power adapter

9 Stereo speaker/

headphone jack

10 Mono microphone jack Connects a mono microphone, disabling the

11 Security cable slot Attaches an optional security cable to the

12 Vent Allows airflow to cool internal components.

13 PC Card slot Supports a 32-bit (CardBus) or 16-bit

14 PC Card eject button Ejects a PC Card from the PC Card slot.

15 Hard drive bay Supports the removable primary hard drive.

Connects stereo speakers, headphones, headset, or television audio.

built-in microphone.

computer.

CAUTION: To prevent damage, the

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 Guide 1–15

Product Description

The keyboard components are shown in Figure 1-4 and described in Table 1-3.

Figure 1-4. Keyboard Components

1–16 Maintenance and Service Guide

Tabl e 1-3

Keyboard Components

Item Component Function

Product Description

4 Windows logo key Displays Windows Start menu.

5 Windows application

6 Cursor control keys Move the cursor around the screen.

7 Embedded numeric

F1 through F12

function keys

Caps lock key Turns on the caps lock function.

Fn key Used 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 Guide 1–17

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

Item Component Function

1 Vent Allows airflow to cool internal components.

CAUTION: To prevent damage, the

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.

2 Volume control buttons Adjust the volume of the stereo speakers.

3 Digital audio button Launches Windows Media Player to play

MP3 music.

1–18 Maintenance and Service Guide

Table 1-4

Top Components (Continued)

Item Component Function

Product Description

4 Power button Turns on the computer. Use the operating

5 Easy Access buttons Provide quick access to the Internet. Refer

6 Power light On: Power is turned on.

7 Num lock light On:

8 Caps lock light On: Caps lock is on.

9 Scroll lock light On:

10 Display lid switch Turns off the computer display if the

11 TouchPad Moves the mouse cursor, selects, and

12 Left and right

TouchPad buttons

13 Easy Scroll button Scrolls the screen left, right, up, and down.

14 Drive indicator light Turns 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.

15 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.

Maintenance and Service Guide 1–19

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

Item Component Function

1 Hard drive retention screw Secures the hard drive to the

computer.

2 Hard drive bay Supports the removable primary

hard drive. The hard drive is secured to the computer by one screw.

1–20 Maintenance and Service Guide

Table 1-5

Bottom Components (Continued)

Item Component Function

Product Description

3 Memory expansion

compartment cover

4 Docking connector Connects the computer to an

5 Stereo speakers Produce stereo sound.

6 Serial number Identifies the computer; needed

7 Certificate of Authenticity label Contains the Product Key, which

8 Battery bay Accepts a 9- or 6-cell Lithium ion

9 Battery pack release switch Releases the battery pack from

10 Modular media bay Accepts a diskette drive or optical

11 Modular 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 Guide 1–21

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

3-inch (7.6 cm) clearance on the left and right sides of the computer.

1–22 Maintenance and Service Guide

Troubleshooting

WARNING: Only authorized technicians trained by Compaq should

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.

■ 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 Guide 2–1

F10

Troubleshooting

Troubleshooting Flowcharts

Table 2-1

Troubleshooting Flowcharts Overview

Section Description

2.1 Initial troubleshooting

2.2 No power, part 1

2.3 No power, part 2

2.4 No power, part 3

2.5 No power, part 4

2.6 No video, part 1

2.7 No video, part 2

2.8 Nonfunctioning docking station

2.9 No operating system (OS) loading

2.10 No OS loading from hard drive, part 1

2.11 No OS loading from hard drive, part 2

2.12 No OS loading from hard drive, part 3

2.13 No OS loading from diskette drive

2.14 No OS loading from CD- or DVD-ROM drive

2.15 No audio, part 1

2.16 No audio, part 2

2.17 Nonfunctioning device

2.18 Nonfunctioning keyboard

2.19 Nonfunctioning pointing device

2.20 No network or modem connection

2–2 Maintenance and Service Guide

Initial Troubleshooting

Begin

Troubleshooting.

Is there power?

Beeps,

LEDs, or error

Messages?

Is there video?

(no boot)

Is the OS

loading?

Is there sound?

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.

Connecting or modem?

All drives working?

Keyboard/

pointing

device

working?

to network

End

Troubleshooting

Nonfunctioning

or Section 2.19,

Nonfunctioning

Pointing Device.

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 Guide 2–3

+ 127 hidden pages