CLEVO W830T Service manual

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Notebook Computer W830T/W830T1/W840T/W840T1

Service Manual

Preface

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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 vendor. 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 publication, 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 October 2009

Trademarks

Intel and Intel Core are trademarks of Intel Corporation. Windows

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

is a registered trademark of Microsoft Corporation.

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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 W830T/ W830T1/W840T/W840T1 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.

Preface

Appendix A, Part Lists Appendix B, Schematic Diagrams

Preface

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Preface

IMPORTANT SAFETY INSTRUCTIONS

Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to persons 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 electrical 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 with an AC Input of 100 - 240V, 50 - 60Hz, DC Output of 19V, 3.42A OR 18.5V, 3.5A (65 Watts) minimum 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

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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.

Preface

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.

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.

Do not expose it to excessive heat or direct sunlight.

Do not leave it in a place where foreign matter or moisture may affect the system.

Don’t use or store the computer in a humid environment.

Do not place the computer on any surface which will block the vents.

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 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 computer by yourself.

Perform routine maintenance on your computer.

Preface

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Preface



Power Safety

Warning

Before you undertake any upgrade procedures, make sure that you have turned off the power, and disconnected all peripherals and cables (including telephone lines). It is advisable to also remove your battery in order to prevent accidentally turning the machine on.

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.

Preface

Use only approved brands of peripherals.

Unplug the power cord befor e attaching 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.

Do not plug in the power cord if you ar e wet.

Do not use the power cord if it is broken.

Do not place heavy objects on the power cord.

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Battery Precautions

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• 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 Guidelines

The following can also apply to any backup batteries you may have.

• If you do not use the battery for an extended period, then remove the battery from the computer for storage.

• Before removing the battery for storage charge it to 60% - 70%.

• Check stored batteries at least every 3 months and charge them to 60% - 70%.

Preface

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 w ith your l ocal 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 recommended by the manufacturer. Discard used battery according to the manufacturer’s instructions.

Battery Level

Click the battery icon in the taskbar to see the current battery level and charge status. A battery that drops below a level of 10% will not allow the computer to boot up. Make sure that any battery that drops below 10% is recharged within one week.

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VII

Preface

Related Documents

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

User’s Manual on Disc This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup program. It also describes the installation and operation of the utility programs provided with the notebook PC.

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Contents

Preface

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

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

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

External Locator - Top View with LCD Panel Open ......................1-4

External Locator - Front & Right side Views .................................1-5

External Locator - Left Side & Rear View .....................................1-6

External Locator - Bottom View .....................................................1-7

Mainboard Overview - Top (Key Parts) .........................................1-8

Mainboard Overview - Bottom (Key Parts) ....................................1-9

Mainboard Overview - Top (Connectors) .....................................1-10

Mainboard Overview - Bottom (Connectors) ...............................1-11

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

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

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

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

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

Disassembly Steps ...........................................................................2-4

Removing the Battery ......................................................................2-5

Removing the Hard Disk Drive .......................................................2-6

Removing the Keyboard ..................................................................2-8

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

Removing the Wireless LAN Module ...........................................2-10

Removing the 3.75G Module ........................................................2-11

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

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

Top (W830T/W830T1) ..................................................................A-3

Top (W840T/W840T1) ..................................................................A-4

Bottom (W830T/W830T1) .............................................................A-5

Bottom (W840T/W840T1) .............................................................A-6

LCD (W830T/W830T1) ................................................................ A-7

LCD (W840T/W840T1) ................................................................ A-8

HDD (W830T/W830T1/W840T/W840T1) ................................... A-9

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

System Block Diagram ...................................................................B-2

Clock Generator ..............................................................................B-3

Penryn SFF 1/3 ...............................................................................B-4

Penryn SFF 2/3 ...............................................................................B-5

Penryn SFF 3/3 ...............................................................................B-6

Cantiga SFF 1/6, PEG .....................................................................B-7

Cantiga SFF 2/6, CLK ....................................................................B-8

Cantiga SFF 3/6, DDR ....................................................................B-9

Cantiga SFF 4/6, Power 1 .............................................................B-10

Cantiga SFF 5/6, Power 2 .............................................................B-11

Cantiga SFF 6/6, GND .................................................................B-12

DDR3 So-DIMM_0 ......................................................................B-13

ICH9-M SFF 1/5, SATA, HDD CON ..........................................B-14

ICH9-M SFF 2/5, PCI, USB .........................................................B-15

ICH9-M SFF 3/5, GPIO ...............................................................B-16

ICH9-M SFF 4/5, Power ...............................................................B-17

ICH9-M SFF 5/5, GND ................................................................B-18

EC KBC-ITE IT8502E .................................................................B-19

Power VCore ................................................................................B-20

Power 1.5V/0.75V/1.5VS .............................................................B-21

Power 1.8V/1.05VS ......................................................................B-22

Power VGA GPU (VGFX_Core) .................................................B-23

Power 5VS, 3VS, 3.3V, 5V ..........................................................B-24

Power VDD3/VDD5 .....................................................................B-25

LCD/CCD/Click/BT Conn ...........................................................B-26

To Multi, I/O Conn, W840T LED ................................................B-27

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Preface

System Block Diagram (W830T) ................................................. B-28

W830T I/O (JMC251) .................................................................. B-29

W830T I/O (CCD, MINI, WLAN/3G) ........................................ B-30

W830T I/0 (New Card, Fan, USB) .............................................. B-31

W830T I/O to MB Conn (SW) ..................................................... B-32

W830T Multi (Audio ALC272) ................................................... B-33

W830T Multi (AC_In, Charger) .................................................. B-34

W830T Multi (HDMI/CRT Port) ................................................. B-35

W830T to CPU Conn (Jack, USB) ...............................................B-36

W830T Click Board (LED) ..........................................................B-37

System Block Diagram (W840T) ................................................. B-38

W840T I/O (JMC251) .................................................................. B-39

W840T I/O (CCD, MINI, WLAN/3G) ........................................ B-40

W840T I/0 (New Card, Fan, USB) .............................................. B-41

W840T I/O to MB Conn (SW) ..................................................... B-42

W840T Multi (Audio ALC272) ................................................... B-43

Preface

W840T Multi (AC_In, Charger) .................................................. B-44

W840T Multi (HDMI/CRT Port) ................................................. B-45

W840T to CPU Conn (Jack, USB) ...............................................B-46

W840T Click Board (LED) ..........................................................B-47

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Chapter 1: Introduction



Overview

This manual covers the information you need to service or upgrade the W830T/W830T1/W840T/W840T1 series notebook computer. Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about drivers (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 W830T/W830T1/W840T/W840T1 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 “

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

” symbol.

Introduction

1.Introduction

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Overview 1 - 1

Introduction

System Specifications

1.Introduction

Processor

W830T/W840T: Intel® Celeron® Processor ULV: 723 (1.20GHz)

45nm (45 Nanometer) Process Technology, 1MB L2 Cache & 800MHz FSB - TDP 10W, BGA Socket P Pin-Out, 22 * 22mm CPU On Board

Intel® Celeron® Processor ULV: 743 (1.30GHz)

45nm (45 Nanometer) Process Technology, 1MB L2 Cache & 800MHz FSB - TDP 10W, BGA Socket P Pin-Out, 22 * 22mm CPU On Board

Intel® Pentium® Processor SU2300: (1.20GHz)

45nm (45 Nanometer) Process Technology, 2MB L2 Cache & 800MHz FSB - TDP 10W, BGA Socket P Pin-Out, 22 * 22mm CPU On Board

Intel® Pentium® Processor SU2700: (1.30GHz)

45nm (45 Nanometer) Process Technology, 2MB L2 Cache & 800MHz FSB - TDP 10W, BGA Socket P Pin-Out, 22 * 22mm CPU On Board

Intel® Pentium® Processor SU4100: (1.30GHz)

45nm (45 Nanometer) Process Technology, 2MB L2 Cache & 800MHz FSB - TDP 10W, BGA Socket P Pin-Out, 22 * 22mm CPU On Board

W830T1/W840T1: Intel® Core™2 Solo Processor ULV: SU3500 (1.40GHz)

45nm (45 Nanometer) Process Technology, 3MB L2 Cache & 800MHz FSB - TDP 5.5W, BGA Socket P Pin-Out, 22 * 22mm CPU On Board

Intel® Core™2 Duo Processor ULV: SU7300 (1.30GHz)

45nm (45 Nanometer) Process Technology, 3MB L2 Cache & 800MHz FSB - TDP 10W, BGA Socket P Pin-Out, 22 * 22mm CPU On Board

Core Logic

W830T/W840T:

Intel® GS40 + ICH9M-SFF Chipset ===============================

W830T1/W840T1:

Intel® GS45 + ICH9M-SFF Chipset

Display

W830T/W830T1:

13.3” HD (1366 * 768) TFT LCD ===============================

W840T/W840T1:

14.0” HD (1366 * 768) TFT LCD

BIOS

One 16Mb SPI Flash ROM Phoenix™ BIOS

Security

Security (Kensington® T y pe) Lock Slot BIOS Password

Memory

64-bit Wide DDRIII (DDR3) Data Channel Supporting Single Channel DDRIII (DDR3)

SDRAM Memory Expandable up to 2GB ===============================

W830T/W840T:

One 204 Pin SO-DIMM Socket Supporting DDRIII (DDR3) 800MHz ===============================

W830T1/W840T1:

One 204 Pin SO-DIMM Socket Supporting

DDRIII (DDR3) 1066MHz

Video

W830T/W840T:

Intel® GMA 4500M High Preference 3D/2D Graphic Accelerator Shared Memory Architecture of up to 256MB Supports Microsoft DirectX 10 ===============================

W830T1/W840T1:

Intel® GMA 4500MHD High Preference 3D/2D Graphic Accelerator Shared Memory Architecture of up to 256MB Supports Microsoft DirectX 10

Audio

High Definition Audio Direct Sound 3D™ Compatible Built-In Microphone 2 * Built-In Speakers

1 - 2 System Specifications

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Introduction

Storage

One Changeable 2.5" 9.5 mm (h) HDD with

SATA (Serial) Interface

Keyboard & Pointing Device

Full Size WinKey Keyboard Built-in TouchPad with Scrolling and Multi-

Finger Key Functionality

Interface

Three USB 2.0 Ports One HDMI-Out Port (High-Definition

Multimedia Interface) One External Monitor Port One Headphone-Out Jack One Microphone-In Jack One RJ-45 LAN Jack for 10/100/1000Mb Fast

Ethernet One DC-In Jack

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

Slots

One ExpressCard 34 Slot

Two Mini-Card Slots with USB & PCIe interface:

Slot 1 for Half Mini-Card WLAN Module Slot 2 for 3.75G Module (

Factory Option

)

Operating System

Communication

Built-In 10M/100M/1000M Base-TX Ethernet LAN

Bluetooth 2.1 + EDR (Enhanced Data Rate) Module (Factory Option)

Intel® WiFi Link 5300 Series (3*3 - 802.11a/g/ n) Wireless LAN PCIe interface Half Mini-Card Module (Factory Option)

3rd Party 802.11b/g/n Wireless LAN PCIe interface Half Mini-Card Module (Factory Option)

1.3M Pixel PC Camera Module with USB interface

3.75G Module:

UMTS/HSPDA-based 3.75G Module with USB Mini-Card Interface ( Quad-band GSM/GPRS (850 MHz, 900 MHz, 1800 MHz, 1900 MHz)

UMTS WCDMA FDD (2100 MHz)

Note that UMTS modes CAN NOT be used in North America

Factory Option

)

Power Management

Supports Wake on LAN

Power

Full Range AC/DC Adapter AC input 100 - 240V, 50 - 60Hz, DC Output 19V, 3.42A or 18.5V, 3.5A (65 Watts) Removable Polymer Battery Pack 31.08WH Removable Polymer Battery Pack 62.16WH

Option

)

(

Environmental Spec

Temperature Operating: 5 Non-Operating: -20°C - 60°C Relative Humidity Operating: 20% - 80% Non-Operating: 10% - 90%

°C - 35°C

Dimensions & Weight

W830T/W830T1:

330mm (w) * 221mm (d) * 23mm (h)

1.50 kg (full system with 1G RAM, 2.5” HDD, and Polymer Battery)

W840T/W840T1:

340mm (w) * 231mm (d) * 23mm (h)

1.60 kg ((full system with 1G RAM, 2.5” HDD, and Polymer Battery)

Optional

Intel® WiFi Link 5300 Series (3*3 - 802.11a/g/ n) Wireless LAN PCIe interface Half Mini-Card Module (Factory Option)

3rd Party 802.11b/g/n Wireless LAN PCIe interface Half Mini-Card Module (Factory Option)

External Super Multi Optical Device Drive with USB Interface Removable Polymer Battery Pack 62.16WH

Bluetooth 2.1 + EDR (Enhanced Data Rate) Module (Factory Option)

UMTS/HSPDA-based 3.75G Module with Mini-Card Interface (Factory Option)

1.Introduction

Windows® Vista (with Service Pack 2) Windows® 7

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System Specifications 1 - 3

Introduction

Figure 1

Top View

1. Optional Built-In PC Camera

2. LCD

3. Power Button

4. Keyboard

5. Built-In Microphone

6. Touchpad & Buttons

7. LED Status & Power Indicators (W830T/W830T1)

8. LED Power Indicators (W840T/W840T1)

9. LED Status Indicators (W840T/W840T1)

External Locator - Top View with LCD Panel Open

1.Introduction

W830T/W830T1 W840T/W840T1

1 - 4 External Locator - Top View with LCD Panel Open

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External Locator - Front & Right side Views

Figure 2

Front Views

1. LED Indicators

Figure 3

Right Side Views

1. ExpressCard 34 Slot

2. 7-in-1 Card Reader

3. RJ-45 LAN Jack

4. USB 2.0 Port

Introduction

W830T/W830T1

W840T/W840T1

W830T/W830T1

W840T/W840T1

1.Introduction

External Locator - Front & Right side Views 1 - 5

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Introduction

Figure 4

Left Side View

1. External Monitor Port (W830T/ W830T1 Only)

2. HDMI-Out Port

3. USB 2.0 Ports

4. Microphone-In Jack

5. Headphone-Out Jack

Figure 5

Rear View

1. Vent/Fan Intake/ Outlet

2. Security Lock Slot

3. USB Port (W830T/ W830T1 only)

4. External Monitor Port (W840T/ W840T1 Only)

5. DC-In Jack

External Locator - Left Side & Rear View

W830T/W830T1

W840T/W840T1

1.Introduction

1 - 6 External Locator - Left Side & Rear View

3 3

W830T/W830T1

W840T/W840T1

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External Locator - Bottom View

Figure 6

Bottom View

1. 3.75G/HSPA USIM Card Bay

2. Hard Disk Bay Cover

3. Battery

4. Vent/Fan Intake/ Outlet

5. Speakers



Overheating

To prevent your computer from overheating make sure nothing blocks the vent/fan intakes while the computer is in use.

5 5

Introduction

1.Introduction

5 5

W830T/W830T1 W840T/W840T1

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External Locator - Bottom View 1 - 7

Introduction

Figure 7

Mainboard Top

Key Parts

1. Memory Slots DDR3 SO-DIMM

2. Intel CPU

3. North Bridge

4. South Bridge

1.Introduction

Mainboard Overview - Top (Key Parts)

1 - 8 Mainboard Overview - Top (Key Parts)

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Mainboard Overview - Bottom (Key Parts)

Figure 8

Mainboard Bottom

Key Parts

1. KBC ITE IT8502E

2. Mini-Card Connector (WLAN Module)

3. ExpressCard Connector

4. Mini-Card Connector (3G Module)

5. Card Reader Socket

Introduction

1.Introduction

Mainboard Overview - Bottom (Key Parts) 1 - 9

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Introduction

Figure 9

Mainboard Top

Connectors

1. USB Port

2. Microphone Cable Connector

3. LCD Cable Connector

4. RTC Battery Connector

5. Keyboard Cable Connector

6. BT Cable Connector

7. TouchPad Cable Connector

Mainboard Overview - Top (Connectors)

1.Introduction

1 - 10 Mainboard Overview - Top (Connectors)

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Mainboard Overview - Bottom (Connectors)

Figure 10

Mainboard Bottom

Connectors

1. CCD Cable Connector

2. Fan Cable Connector

3. HDD Connector

Introduction

1.Introduction

Mainboard Overview - Bottom (Connectors) 1 - 11

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Introduction

1.Introduction

1-12

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Chapter 2: Disassembly

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Overview

This chapter provides step-by-step instructions for disassembling the W830T/W830T1/W840T/W840T1 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.

Disassembly

Procedures such as upgrading/replacing the RAM, optical 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 disassembly procedure listed ONLY, and not any previous disassembly step(s) required. Refer to the part list for the previous disassembly procedure. The amount of screws you should be left with will be listed here also.

A box with a

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

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

contains warnings.

2.Disassembly

Information

Warning

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Overview 2 - 1

Disassembly

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 replacing the connection, make sure the connector is oriented in the same way. The pin1 side is usually not indicated.

2 - 2 Overview

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 replacing 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.

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Maintenance Precautions



Power Safety

Warning

The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a removal 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 magnetic 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 produce 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 part s, 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.

Disassembly

2.Disassembly

Overview 2 - 3

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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.

2.Disassembly

To remove the Battery: