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Manual

Preface

Notebook Computer

M72XR

Service Manual

Preface

Notice

The company reserves the right to revise this publication or to change its contents without notice. Information contained

herein is for reference only and does not constitute a commitment on the part of the manufacturer or any subsequent ven-

dor. They assume no responsibility or liability for any errors or inaccuracies that may appear in this publication nor are

they in anyway responsible for any loss or damage resulting from the use (or misuse) of this publication.

This publication and any accompanying software may not, in whole or in part, be reproduced, translated, transmitted or

reduced to any machine readable form without prior consent from the vendor, manufacturer or creators of this publica-

tion, except for copies kept by the user for backup purposes.

Brand and product names mentioned in this publication may or may not be copyrights and/or registered trademarks of

their respective companies. They are mentioned for identification purposes only and are not intended as an endorsement

of that product or its manufacturer.

Version 1.0

August 2007

Trademarks

Intel and Intel Core are trademarks/registered trademarks of Intel Corporation.

Windows® is a registered trademark of Microsoft Corporation.

Other brand and product names are trademarks and./or registered trademarks of their respective companies.

Preface

III

Preface

About this Manual

This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and

inspection of personal computers.

It is organized to allow you to look up basic information for servicing and/or upgrading components of the M72XR series

notebook PC.

The following information is included:

Chapter 1, Introduction, provides general information about the location of system elements and their specifications.

Chapter 2, Disassembly, provides step-by-step instructions for disassembling parts and subsystems and how to upgrade

elements of the system.

Appendix A, Part Lists

Appendix B, Schematic Diagrams

Preface

IMPORTANT SAFETY INSTRUCTIONS

Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per-

sons when using any electrical equipment:

1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet

basement or near a swimming pool.

2. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of elec-

trical shock from lightning.

3. Do not use the telephone to report a gas leak in the vicinity of the leak.

4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They may

explode. Check with local codes for possible special disposal instructions.

5. This product is intended to be supplied by a Listed Power Unit (DC Output 19V, 3.42A or 18.5V, 3.5A AC/DC Adapter).

CAUTION

Always disconnect all telephone lines from the wall outlet before servicing or disassembling this equipment.

TO REDUCE THE RISK OF FIRE, USE ONLY NO. 26 AWG OR LARGER,

TELECOMMUNICATION LINE CORD

This Computer’s Optical Device is a Laser Class 1 Product

Preface

Instructions for Care and Operation

The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions:

1. Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged.

2. Keep it dry, and don’t overheat it. Keep the computer and power supply away from any kind of heating element. This

is an electrical appliance. If water or any other liquid gets into it, the computer could be badly damaged.

3. Follow the proper working procedures for the computer. Shut the computer down properly and don’t forget to save

your work. Remember to periodically save your data as data may be lost if the battery is depleted.

Do not expose the computer

to any shock or vibration. Do not place it on an unstable

surface. Do not place anything heavy

on the computer.

Do not expose it to excessive

heat or direct sunlight. Do not leave it in a place

where foreign matter or mois-

ture may affect the system.

Don’t use or store the com-

puter in a humid environment. Do not place the computer on

any surface which will block

the vents.

Do not turn off the power

until you properly shut down

all programs.

Do not turn off any peripheral

devices when the computer is

on.

Do not disassemble the com-

puter by yourself. Perform routine maintenance

on your computer.

Preface

4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag-

netic fields. These can hinder proper performance and damage your data.

5. Take care when using peripheral devices.

Power Safety

The computer has specific power requirements:

• Only use a power adapter approved for use with this computer.

• Your AC adapter may be designed for international travel but it still requires a steady, uninterrupted power supply. If you are

unsure of your local power specifications, consult your service representative or local power company.

• The power adapter may have either a 2-prong or a 3-prong grounded plug. The third prong is an important safety feature; do

not defeat its purpose. If you do not have access to a compatible outlet, have a qualified electrician install one.

• When you want to unplug the power cord, be sure to disconnect it by the plug head, not by its wire.

• Make sure the socket and any extension cord(s) you use can support the total current load of all the connected devices.

• Before cleaning the computer, make sure it is disconnected from any external power supplies.

Use only approved brands of

peripherals. Unplug the power cord before

attaching peripheral devices.

Do not plug in the power

cord if you are wet. Do not use the power cord if

it is broken. Do not place heavy objects

on the power cord.



Power Safety

Warning

Before you undertake

any upgrade proce-

dures, make sure that

you have turned off the

power, and discon-

nected all peripherals

and cables (including

telephone lines). It is

advisable to also re-

move your battery in

order to prevent acci-

dentally turning the

machine on.

Preface

VII

Preface

Battery Precautions

• Only use batteries designed for this computer. The wrong battery type may explode, leak or damage the computer.

• Do not continue to use a battery that has been dropped, or that appears damaged (e.g. bent or twisted) in any way. Even if the

computer continues to work with a damaged battery in place, it may cause circuit damage, which may possibly result in fire.

• Recharge the batteries using the notebook’s system. Incorrect recharging may make the battery explode.

• Do not try to repair a battery pack. Refer any battery pack repair or replacement to your service representative or qualified service

personnel.

• Keep children away from, and promptly dispose of a damaged battery. Always dispose of batteries carefully. Batteries may explode

or leak if exposed to fire, or improperly handled or discarded.

• Keep the battery away from metal appliances.

• Affix tape to the battery contacts before disposing of the battery.

• Do not touch the battery contacts with your hands or metal objects.



Battery Disposal

The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of

its useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal

waste stream. Check with your local solid waste officials for details in your area for recycling options or proper

disposal.

Caution

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommend-

ed by the manufacturer. Discard used battery according to the manufacturer’s instructions.

Preface

VIII

Preface

Related Documents

You may also need to consult the following manual for additional information:

User’s Manual on CD

This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup pro-

gram. It also describes the installation and operation of the utility programs provided with the notebook PC.

Preface

Contents

Introduction ..............................................1-1

Overview .........................................................................................1-1

System Specifications .....................................................................1-2

Model Differences ...........................................................................1-5

External Locator - Top View with LCD Panel Open ......................1-6

External Locator - Front & Rear Views ..........................................1-7

External Locator - Left & Right Side Views ...................................1-8

External Locator - Bottom View .....................................................1-9

Mainboard Overview - Top (Key Parts) .......................................1-10

Mainboard Overview - Bottom (Key Parts) ..................................1-11

Mainboard Overview - Top (Connectors) .....................................1-12

Mainboard Overview - Bottom (Connectors) ...............................1-13

Disassembly ...............................................2-1

Overview .........................................................................................2-1

Maintenance Tools ..........................................................................2-2

Connections .....................................................................................2-2

Maintenance Precautions .................................................................2-3

Removing the Battery ......................................................................2-6

Removing the Hard Disk Drive .......................................................2-7

Removing the System Memory (RAM) ..........................................2-9

Removing the Processor ................................................................2-11

Removing the Wireless LAN Module ...........................................2-13

Removing the Bluetooth Module ..................................................2-14

Removing the Optical (CD/DVD) Device ....................................2-15

Removing the Keyboard ................................................................2-16

Removing the Modem Module .....................................................2-17

Part Lists ..................................................A-1

Part List Illustration Location ........................................................A-2

Top with Fingerprint (M720R) ......................................................A-3

Top without Fingerprint (M720R) ................................................. A-4

Top with Fingerprint (M725R) ...................................................... A-5

Top without Fingerprint (M725R) ................................................. A-6

Bottom (M72XR) ........................................................................... A-7

LCD (M720R) ............................................................................... A-8

LCD (M725R) ............................................................................... A-9

Combo (M720R) .......................................................................... A-10

DVD-DUAL-RW (M720R) ......................................................... A-11

Schematic Diagrams.................................B-1

SYSTEM BLOCK DIAGRAM ......................................................B-2

CPU-1 .............................................................................................B-3

CPU-2 .............................................................................................B-4

Crestline 1/5 ....................................................................................B-5

Crestline 2/5, DRAM ......................................................................B-6

Crestline 3/5 ....................................................................................B-7

Crestline 4/5 ....................................................................................B-8

Crestline 5/5 ....................................................................................B-9

DDRII SO-DIMM 0 .....................................................................B-10

DDRII SO- DIMM 1 ....................................................................B-11

PANEL, INVERTER, CRT ..........................................................B-12

ICH8-M 1/4, SATA ......................................................................B-13

ICH8-M 2/4, PCI, USB ................................................................B-14

ICH8-M 3/4 ..................................................................................B-15

ICH8-M 4/4 ..................................................................................B-16

CLOCK GENERATOR ................................................................B-17

3G POWER, TPM ........................................................................B-18

IEEE 1394 VT6311S ....................................................................B-19

MULTI 1/O, ODD, CCD, BT .......................................................B-20

NEW CARD, MINI PCIE, USB ...................................................B-21

LED, FAN, PC BEEP, TP, FP ......................................................B-22

Preface

ENE MR510, 7 IN 1 ..................................................................... B-23

PCI-E LAN RTL8111B ...............................................................B-24

AUDIO CODEC ALC883 ...........................................................B-25

AUDIO AMP2056 ....................................................................... B-26

KBC-ITE IT8512E ....................................................................... B-27

3VS, 5VS ..................................................................................... B-28

POWER GPU/1.25VS .................................................................. B-29

POWER 3.3V/5V .........................................................................B-30

POWER 1.5VS/ 1.05VS ............................................................... B-31

POWER 1.8V/0.9V ......................................................................B-32

AC IN, CHARGE ......................................................................... B-33

VCORE FOR MEROM CPU ....................................................... B-34

MULTI BOARD, LID, LED, SW, USB ......................................B-35

MULTI BOARD 3G, MDC, RJ11 ...............................................B-36

FINGERPRINT BOARD ............................................................. B-37

CLICK BOARD ........................................................................... B-38

Introduction

Overview 1 - 1

1.Introduction

Chapter 1: Introduction

Overview

This manual covers the information you need to service or upgrade the M72XR series notebook computer. Information

about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about driv-

ers (e.g. VGA & audio) is also found in User’s Manual. That manual is shipped with the computer.

Operating systems (e.g. Windows XP, Windows Vista, etc.) have their own manuals as do application software (e.g. word

processing and database programs). If you have questions about those programs, you should consult those manuals.

The M72XR series notebook is designed to be upgradeable. See “Disassembly” on page 2 - 1 for a detailed description

of the upgrade procedures for each specific component. Please note the warning and safety information indicated by the

“” symbol.

The balance of this chapter reviews the computer’s technical specifications and features.

Introduction

1 - 2 System Specifications

1.Introduction

System Specifications

Feature Specification

Processor Intel® Core™2 Duo Processor

(478-pin) Micro-FC-PGA Package - Socket-P

T7100

65nm (65 Nanometer) Process Technology

2MB On-die L2 Cache & 800MHz FSB

1.8 GHz

Intel® Core™2 Duo Processor

(478-pin) Micro-FC-PGA Package - Socket-P

T7300/ T7500/ T7700

65nm (65 Nanometer) Process Technology

4MB On-die L2 Cache & 800MHz FSB

2.0/ 2.2/ 2.4 GHz

Core Logic Intel GM965+ICH8M Chipset

LCD 12.1" WXGA (1280 * 800) Glare / Non Glare TFT LCD

Memory Dual Channel 64-bit Wide DDRII (DDR2)

Two 200 Pin SO-DIMM Sockets Supporting DDRII (DDR2) 533MHz - 512MB RAM Modules OR 667MHz - 512MB/

1024MB RAM Modules

Memory Expandable up to 2GB (512/1024 MB DDRII Modules)

Video Adapter Intel GM965 Integrated Video

High Preference 3D/2D Graphic Accelerator

Supports Dynamic Video Memory Technology DVMT (up to 256MB dynamically allocated from system memory where

needed)

Supports DirectX 9 3D Graphics Engine Accelerator

Security Security (Kensington® Type) Lock Slot

Fingerprint ID Reader Module (Factory Option)

BIOS Password

Trusted Platform Module V1.2 (Factory Option)



Latest Specification Information

The specifications listed in this Appendix are correct at the time of going to press. Certain items (particularly processor types/speeds and

CD/DVD device types) may be changed, delayed or updated due to the manufacturer's release schedule. Check with your service center

for details.

Introduction

System Specifications 1 - 3

1.Introduction

BIOS One 8Mb SPI Flash ROM Phoenix™ BIOS

Storage One Changeable 12.7mm(h) Optical Device (CD/DVD) Type Drive (see “Optional” on page 1 - 4) Easy Changeable 2.5"

9.5 mm (h) SATA (Serial) HDD

Audio High Definition Audio (HDA)

Compliant with Microsoft UAA (Universal Audio

Architecture)

Direct Sound 3D™ Compatible

EAX™ 1.0 & 2.0 Compatible

A3D™ Compatible

S/PDIF Digital Output

2 * Built-In Speakers

Built-In Microphone

Keyboard &

Pointing Device Winkey Keyboard Built-In TouchPad with Scrolling Function

Interface Three USB 2.0 Ports

One Headphone-Out Jack

One Microphone-In Jack

One S/PDIF Out Jack

One Internal Microphone

One RJ-11 Modem Jack

One RJ-45 LAN Jack

One DC-In Jack

One External Monitor Port

One IEEE1394 Port

Card Reader Embedded 7-in-1 Card Reader (MS/ MS Pro/ SD/ Mini SD/ MMC/ RS MMC/ MS Duo) Note: MS Duo/ Mini SD/ RS

MMC Cards require a PC adapter

ExpressCard Slot One ExpressCard/34(54) Slot

Communication

*Note: The 3.5G

and Intel Turbo

Memory Modules

cannot coexist. If one

of these factory op-

tions is included in

your purchase op-

tion, then the other is

unavailable.

Wireless Module Options:

Intel PRO/Wireless 3945ABG PCIe Wireless LAN Module

Intel Wireless WiFi Link 4965AGN PCIe Wireless LAN Module

802.11 b/g USB Wireless LAN Module

10M/100/1000Mb Base-T Ethernet LAN

56K MDC Modem V.90 & V.92 Compliant

1.3M or 2.0M Pixel USB PC Camera Module (Factory Option)

Bluetooth 2.0 + EDR (Enhanced Data Rate) Module (Factory Option)

UMTS/HSPDA-based 3.5G Module with Mini Card Interface (Factory Option)

Quad-band GSM/GPRS (850 MHz, 900 MHz, 1800 MHz, 1900 MHz)

UMTS WCDMA FDD (2100 MHz)

Feature Specification



UMTS Modes

Note that UMTS modes

CAN NOT be used in North

America.

Introduction

1 - 4 System Specifications

1.Introduction

Power

Management Supports ACPI 3.0 Supports Wake on LAN

Supports Wake on USB

Supports Resume from Modem Ring

Power Full Range AC/DC Adapter AC input 100 - 240V, 50 - 60Hz, DC Output 19V, 3.42A or 18.5V, 3.5A (65 Watts)

Battery 4 Cell Smart Lithium-Ion Battery Pack, 14.8V/2.4AH

8 Cell Smart Lithium-Ion Battery Pack, 14.8V/4.4AH (Option)

RTC Battery

Environmental

Spec Temperature

Operating: 5°C ~ 35°C

Non-Operating: -20°C ~ 60°C

Relative Humidity

Operating: 20% ~ 80%

Non-Operating: 10% ~ 90%

Dimensions

& Weight 299mm (w) * 219mm (d) * 26.5-35.7mm (h) 1.88 kg With 4 Cell Battery and ODD

Optional

*Note: The 3.5G

and Intel Turbo

Memory Modules

cannot coexist. If one

of these factory op-

tions is included in

your purchase op-

tion, then the other is

unavailable.

Optical Drive Module Options:

DVD/CD-RW Combo Drive Module

DVD Dual Drive Module

Super Multi Drive Module

Wireless Module Options:

Intel PRO/Wireless 3945ABG PCIe Wireless LAN Module

Intel Wireless WiFi Link 4965AGN PCIe Wireless LAN

Module

802.11 b/g USB Wireless LAN Module

USB Floppy Disk Drive

8 Cell Smart Lithium-Ion Battery Pack

Trusted Platform Module V1.2 (Factory Option)

1.3M or 2.0M Pixel USB PC Camera Module (Factory

Option)

Fingerprint ID Reader Module (Factory Option)

Bluetooth 2.0 + EDR (Enhanced Data Rate) Module (Factory

Option)

*Intel Turbo Memory (Robson) NAND Flash Memory Card

Module (Factory Option)

*UMTS/HSPDA-based 3.5G Module with Mini Card Interface

(Factory Option)

Quad-band GSM/GPRS (850 MHz, 900 MHz, 1800 MHz,

1900 MHz)

UMTS WCDMA FDD (2100 MHz)

Feature Specification



UMTS Modes

Note that UMTS modes CAN NOT be used in

North America.

Introduction

System Specifications 1 - 5

1.Introduction

Model Differences

The models vary slightly in external cover design and color.

Figure 1

Model Differences

Introduction

1 - 6 External Locator - Top View with LCD Panel Open

1.Introduction

External Locator - Top View with LCD Panel Open

Figure 2

Top View

1. Built-In PC

Camera

(Optional)

2. LCD

3. Speakers

4. Power Button

5. Hot-Key Buttons

6. LED Status

Indicators

7. Keyboard

8. Touchpad &

Buttons

9. LED Power &

Communication

Indicators

10. Fingerprint

Module (Optional)

11. Built-In

Microphone

Introduction

External Locator - Front & Rear Views 1 - 7

1.Introduction

External Locator - Front & Rear Views Figure 3

Front View

1. LCD Latches

2. LED Power &

Communication

Indicators

3. 7-in-1 Card Reader

4. S/PDIF-Out Jack

5. Microphone-In Jack

6. Headphone-Out

Jack

Figure 4

Rear View

1. Battery

Front

1Rear

Introduction

1 - 8 External Locator - Left & Right Side Views

1.Introduction

External Locator - Left & Right Side Views

12356

Left

Figure 5

Left Side View

1. DC-In Jack

2. RJ-45 LAN Jack

3. External Monitor

Port

4. Mini-IEEE 1394

Port

5. Vent

6. 3 * USB 2.0 Ports

7. ExpressCard/

54(34) Slot

Figure 6

Right Side View

1. Optical Device

Drive Bay

2. Emergency Eject

Hole

3. USB 2.0 Port

4. RJ-11 Phone Jack

5. Security Lock Slot

345

Right

Introduction

External Locator - Bottom View 1 - 9

1.Introduction

External Locator - Bottom View

Figure 7

Bottom View

1. Battery

2. Hard Disk Bay

Cover

(3.5G Module/Intel

Turbo Memory

Module Location)

3. RAM & CPU Bay

Cover



Overheating

To prevent your com-

puter from overheating

make sure nothing

blocks the vent/fan in-

takes while the com-

puter is in use.

Introduction

1 - 10 Mainboard Overview - Top (Key Parts)

1.Introduction

Mainboard Overview - Top (Key Parts)

Figure 8

Mainboard Top

Key Parts

1. SC452

2. ITE 8512E

3. ExpressCard

Assembly

Introduction

Mainboard Overview - Bottom (Key Parts) 1 - 11

1.Introduction

Mainboard Overview - Bottom (Key Parts) Figure 9

Mainboard Bottom

Key Parts

1. CPU Socket (no

CPU installed)

2. PCI-E LAN

RTL8111B

3. CLOCK

GENERATOR

ICS9LPR363

4. Northbridge-Intel

GM965

5. Card Reader

Controller ENE

MR510

6. VIA VT6311S

7. Southbridge-

ICH8-M

8. Memory Slots

DDRII So-DIMM

Introduction

1 - 12 Mainboard Overview - Top (Connectors)

1.Introduction

Mainboard Overview - Top (Connectors)

Figure 10

Mainboard Top

Connectors

1. External Monitor

Port

2. RJ-45 LAN Jack

3. CCD Cable

Connector

4. LCD Cable

Connector

5. Speaker Cable

Connector

6. Touch Pad Cable

Connector

7. Fingerprint Cable

Connector

8. Internal

Microphone Cable

Connector

9. Keyboard Cable

Connector

8 9

Introduction

Mainboard Overview - Bottom (Connectors) 1 - 13

1.Introduction

Mainboard Overview - Bottom (Connectors) Figure 11

Mainboard Bottom

Connectors

1. DC-In Jack

2. RJ-45 LAN Jack

3. External Monitor

Port

4. Inverter Cable

Connector

5. USB Port

6. S/PDIF-Out Jack

7. Microphone-In

Jack

8. Headphone-Out

Jack

9. Optical Device

Drive Connector

10. Mini PCIe Socket

11. SATA HDD

Connector

12. Battery

Connector

13. Bluetooth Cable

Connector

14. Fan Cable

Connector

15. Card Reader

Introduction

1-14

1.Introduction

Disassembly

Overview 2 - 1

2.Disassembly

Chapter 2: Disassembly

Overview

This chapter provides step-by-step instructions for disassembling the M72XR series notebook’s parts and subsystems.

When it comes to reassembly, reverse the procedures (unless otherwise indicated).

We suggest you completely review any procedure before you take the computer apart.

Procedures such as upgrading/replacing the RAM, CD device and hard disk are included in the User’s Manual but are

repeated here for your convenience.

To make the disassembly process easier each section may have a box in the page margin. Information contained under

the figure # will give a synopsis of the sequence of procedures involved in the disassembly procedure. A box with a 

lists the relevant parts you will have after the disassembly process is complete. Note: The parts listed will be for the dis-

assembly procedure listed ONLY, and not any previous disassembly step(s) required. Refer to the part list for the previ-

ous disassembly procedure. The amount of screws you should be left with will be listed here also.

A box with a  will also provide any possible helpful information. A box with a  contains warnings.

An example of these types of boxes are shown in the sidebar.



Information



Warning

Disassembly

2 - 2 Overview

2.Disassembly

NOTE: All disassembly procedures assume that the system is turned OFF, and disconnected from any power supply (the

battery is removed too).

Maintenance Tools

The following tools are recommended when working on the notebook PC:

• M3 Philips-head screwdriver

• M2.5 Philips-head screwdriver (magnetized)

• M2 Philips-head screwdriver

• Small flat-head screwdriver

• Pair of needle-nose pliers

• Anti-static wrist-strap

Connections

Connections within the computer are one of four types:

Locking collar sockets for ribbon connectors To release these connectors, use a small flat-head screwdriver to

gently pry the locking collar away from its base. When replac-

ing the connection, make sure the connector is oriented in the

same way. The pin1 side is usually not indicated.

Pressure sockets for multi-wire connectors To release this connector type, grasp it at its head and gently

rock it from side to side as you pull it out. Do not pull on the

wires themselves. When replacing the connection, do not try to

force it. The socket only fits one way.

Pressure sockets for ribbon connectors To release these connectors, use a small pair of needle-nose pli-

ers to gently lift the connector away from its socket. When re-

placing the connection, make sure the connector is oriented in

the same way. The pin1 side is usually not indicated.

Board-to-board or multi-pin sockets To separate the boards, gently rock them from side to side as

you pull them apart. If the connection is very tight, use a small

flat-head screwdriver - use just enough force to start.

Disassembly

Overview 2 - 3

2.Disassembly

Maintenance Precautions

The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a re-

moval and/or replacement job, take the following precautions:

1. Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other

components could be damaged.

2. Don't overheat it. Note the proximity of any heating elements. Keep the computer out of direct sunlight.

3. Avoid interference. Note the proximity of any high capacity transformers, electric motors, and other strong mag-

netic fields. These can hinder proper performance and damage components and/or data. You should also monitor

the position of magnetized tools (i.e. screwdrivers).

4. Keep it dry. This is an electrical appliance. If water or any other liquid gets into it, the computer could be badly

damaged.

5. Be careful with power. Avoid accidental shocks, discharges or explosions.

•Before removing or servicing any part from the computer, turn the computer off and detach any power supplies.

•When you want to unplug the power cord or any cable/wire, be sure to disconnect it by the plug head. Do not pull on the wire.

6. Peripherals – Turn off and detach any peripherals.

7. Beware of static discharge. ICs, such as the CPU and main support chips, are vulnerable to static electricity.

Before handling any part in the computer, discharge any static electricity inside the computer. When handling a

printed circuit board, do not use gloves or other materials which allow static electricity buildup. We suggest that

you use an anti-static wrist strap instead.

8. Beware of corrosion. As you perform your job, avoid touching any connector leads. Even the cleanest hands pro-

duce oils which can attract corrosive elements.

9. Keep your work environment clean. Tobacco smoke, dust or other air-born particulate matter is often attracted

to charged surfaces, reducing performance.

10. Keep track of the components. When removing or replacing any part, be careful not to leave small parts, such as

screws, loose inside the computer.

Cleaning

Do not apply cleaner directly to the computer, use a soft clean cloth.

Do not use volatile (petroleum distillates) or abrasive cleaners on any part of the computer.



Power Safety

Warning

Before you undertake

any upgrade proce-

dures, make sure that

you have turned off the

power, and discon-

nected all peripherals

and cables (including

telephone lines). It is

advisable to also re-

move your battery in

order to prevent acci-

dentally turning the

machine on.

Disassembly

2 - 4 Overview

2.Disassembly

Disassembly Steps

The following table lists the disassembly steps, and on which page to find the related information. PLEASE PERFORM

THE DISASSEMBLY STEPS IN THE ORDER INDICATED.

To remove the Battery: