EUROCOM D47EV, 48EV, D48EV Service Manual

Preface

Notebook Computer

D47EV/D48EV

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 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 September 2004

Trademarks

Intel® and Pentium® are 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.

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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 D47EV/ D48EV 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 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 (DC Output 20V, 7.5A).

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

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 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.

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

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

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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.

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.

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

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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 program. 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

Processor .........................................................................................1-2

Core Logic ....................................................................................... 1-2

Structure ..........................................................................................1-2

Security ............................................................................................1-2

Memory ...........................................................................................1-2

BIOS ................................................................................................1-2

LCD Options ...................................................................................1-2

Display ............................................................................................1-2

Storage Devices ............................................................................... 1-3

Keyboard .........................................................................................1-3

PC Card ...........................................................................................1-3

Audio ...............................................................................................1-3

Interface ...........................................................................................1-3

Communication ...............................................................................1-4

Power Management ......................................................................... 1-4

Power ...............................................................................................1-4

Indicators .........................................................................................1-4

Environmental Spec ........................................................................1-4

Physical Dimensions .......................................................................1-4

Weight .............................................................................................1-4

Optional ...........................................................................................1-4

External Locator - Top View ..........................................................1-5

External Locator - Front & Left Side Views ................................... 1-6

External Locator - Right Side & Rear Views .................................. 1-7

External Locator - Bottom View .....................................................1-8

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

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

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

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

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

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

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

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

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

Cleaning .......................................................................................... 2-3

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

Removing the Battery ..................................................................... 2-8

Removing the Sub Woofer ............................................................. 2-9

Removing the Hard Disk Drive Assembly ................................... 2-10

Hard Disk Upgrade Process .......................................................... 2-10

Removing the System Memory (RAM) ....................................... 2-11

Memory Upgrade Process ............................................................. 2-11

Removing the CD Device ............................................................. 2-13

Removing the Bluetooth Module .................................................. 2-15

Removing the Wireless LAN Module .......................................... 2-16

Removing the Processor ............................................................... 2-17

Removing the Keyboard & Center Cover ..................................... 2-19

Removing the LCD Assembly ...................................................... 2-20

Removing the Top Case Module .................................................. 2-22

Removing the TouchPad ............................................................... 2-23

Removing the LED Board ............................................................ 2-24

Removing the Modem .................................................................. 2-25

Removing the Mainboard ............................................................. 2-26

Removing the PCMCIA Module .................................................. 2-27

Removing the Inverter .................................................................. 2-28

Preface

Removing the LCD Panel .............................................................2-29

Removing the Camera Module .....................................................2-30

Removing the Bluetooth/WLAN Antennas ..................................2-31

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

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

Top (D470W) ................................................................................. A-3

Bottom (D470W) ............................................................................ A-4

LCD 17" (D470W) ......................................................................... A-5

CD-ROM Drive (D470W) ............................................................. A-6

CD-RW Drive (D470W) ................................................................ A-7

DVD-ROM Drive (D470W) ..........................................................A-8

Combo Drive (D470W) .................................................................. A-9

Card Reader (D470W) .................................................................A-10

Sub-Woofer Speaker (D470W) .................................................... A-11

TV Tuner (D470W) ...................................................................... A-12

Floppy Disk Drive (D470W) ........................................................ A-13

Hard Disk Drive (D470W) ........................................................... A-14

Top (D480W) ............................................................................... A-15

Bottom (D480W) .......................................................................... A-16

LCD 17" (D480W) ....................................................................... A-17

CD-ROM Drive (D480W) ...........................................................A-18

CD-RW Drive (D480W) .............................................................. A-19

DVD-ROM Drive (D480W) ........................................................A-20

Combo Drive (D480W) ................................................................ A-21

Card Reader (D480W) .................................................................A-22

Sub-Woofer Speaker (D480W) .................................................... A-23

TV Tuner (D480W) ...................................................................... A-24

Floppy Disk Drive (D480W) ........................................................ A-25

Hard Disk Drive (D480W) ........................................................... A-26

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

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

Socket 478 1 of 2 ............................................................................B-3

Socket 478 & ITP 2 of 2 .................................................................B-4

Clock Generator ..............................................................................B-5

M650 (Host/AGP) 1 of 4 ................................................................B-6

M650 (Memory for DDR) 2 of 4 ....................................................B-7

M650 (& CRT Out) 3 of 4 ..............................................................B-8

M650 (Power) 4 of 4 .......................................................................B-9

DDR Memory DIMM ...................................................................B-10

DDR SSTL-2 Termination ...........................................................B-11

LVDS Interface (SiS302LV) ........................................................B-12

Panel Con & LED Indicator .........................................................B-13

962 (PCI/IDE/HyperZip) 1 of 4 ....................................................B-14

962 (Misc Signals) 2 of 4 ..............................................................B-15

962 (USB I/F) 3 of 4 .....................................................................B-16

962 (Power & RTC) 4 of 4 ...........................................................B-17

HDD/Combo Connector ...............................................................B-18

USB Port .......................................................................................B-19

PCMCIA ENE1410 ......................................................................B-20

PCMCIA Power & Bluetooth Interface ........................................B-21

1394 PHY TSB41LV01 ................................................................B-22

LPC Super I/O ..............................................................................B-23

LPT/COM Port .............................................................................B-24

LPC H8 .........................................................................................B-25

LAN RTL8100BL ........................................................................B-26

Audio Codec ALC201A ...............................................................B-27

Audio Out & Off Board Connectors .............................................B-28

System Power Control ...................................................................B-29

Fan Control and SpeedStep ..........................................................B-30

Mobility M9-P ..............................................................................B-31

Mobility M9-P MEM A/B ............................................................B-32

VGA DRAM 1 of 2 ......................................................................B-33

Preface

VGA DRAM 1 of 2 - Termination ............................................... B-34

VGA DRAM 2 of 2 ...................................................................... B-35

Mobility M9-P POW .................................................................... B-36

VCORE ........................................................................................ B-37

DDR Power ..................................................................................B-38

System Power ............................................................................... B-39

Charger ......................................................................................... B-40

SW Board and HotKey ................................................................. B-41

TouchPad and Switch Board ........................................................ B-42

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XII

Preface

Introduction

Overview 1 - 1

1.Introduction

1: Introduction

Overview

This manual covers the information you need to service or upgrade the D47EV/D48EV 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. DOS, Windows 9x, Windows NT 4.0, Windows 2000, Windows XP, OS/2 Warp, UNIX, 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 D47EV/D48EV 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 Types Intel Pentium® 4 Processor supporting Hyper-Threading Technology (478-pin) FC-PGA2 Package

(µ0.09) 0.09 Micron Process Technology, 1MB On-die L2 Cache & 800MHz Front Side Bus

- 2.8 ~ 3.2 GHz

Intel Pentium® 4 Processor supporting Hyper-Threading Technology (478-pin) FC-PGA2 Package (

µ0.13) 0.13 Micron Process Technology, 512KB On-die L2 Cache & 800MHz Front Side Bus - 2.4 ~ 3.2 GHz

Mobile Intel Pentium® 4 Processor supporting Hyper-Threading Technology (478-pin) FC-PGA2 Package (

µ0.13) 0.13 Micron Process Technology, 512KB On-die L2 Cache & 533MHz Front Side Bus - 2.8 ~ 3.2 GHz

Core Logic SiS 648FX + 963

Security Security (Kensington® Type) Lock Slot, BIOS Password

Memory Two 200 Pins SODIMM Sockets, supporting DDR 333/ 400 MHz Modules

Expandable up to 1024 MB (128/ 256/ 512MB DDR Modules)

BIOS One 512KB Flash ROM, Phoenix BIOS

LCD Options 17.0" - Wide XGA TFT 17.0" - Wide SXGA+ TFT

Display ATI Mobility Radeon 9700 Graphic Chip (M11)

2D/3D graphics engine Advanced HW accelerator for DVD playback Fully DirectX 9 compliant notebook GPU 128-bit memory interface External memory 128MB DDR SGRAM On Board Dual-view display monitor

Device Bay Options Bay One:

Fixed 7-in-1 Card Reader Module Sub Woofer Module (factory option)

Bay Three: TV Tuner Module (factory option)

Bay Two:

CD-ROM DVD-ROM Combination DVD-ROM/CD-RW CD-RW DVD-RW DVD Dual

Table 1 - 1

System

Specifications

Introduction

System Specifications 1 - 3

1.Introduction

Hard Disk Easy Changeable 2.5" 9.5/12.7 mm (h) Hard Disk Drive

Supports Master mode IDE, PIO mode 4, ATA-33/ 66/ 100/ 133, Ultra ATA Port

PC Card One Type II PCMCIA 3.3V/5V socket supporting CardBus

Keyboard “WinKey” keyboard, Full-size with numeric pad

Pointing Device Built-in TouchPad (scrolling key functionality integrated)

Audio AC'97 compliant interface

3D stereo enhanced sound system Compatible Sound-Blaster PRO™ S/PDIF Digital output (5.1 CH)

Built-in microphone 4 Built-in speakers Built-in sub woofer (factory option)

Interface Two USB 2.0 Ports

One Mini-IEEE 1394 Port One S-Video out port for TV output One serial port One parallel port (LPT1) One infrared transceiver supporting IrDA 1.1/ FIR/SIR/ ASKIR One consumer infrared transceiver which functions with the optional TV Tuner One external monitor (VGA) port One PS/2 Port One headphone-out jack One microphone-in jack

One RJ-11 jack for modem One RJ-45 jack for LAN One DC-in jack One S/PDIF out port 3 Built-in hot-key buttons: WWW, E-Mail, & application One S-Video-In port for video input (option with TV Tuner module) One Line-In port for audio input (option with TV Tuner module) One CATV-In port (option with TV Tuner module)

Communication 56K Plug & Play modem (V.90 & V.92 Compliant)

Infrared transfer: 115.2K bps SIR/ 4M bps FIR, IrDA 1.1 compliant

802.11b wireless LAN module (option) PC Camera module (factory option) Bluetooth module (option) 1000Base-T (Gigabit) LAN on-board (10/ 100 Base-T compatible) *Do not try to use Bluetooth & TV Tuner at the same time, as this may cause configuration conflicts.

Power Management Supports ACPI v1.0b

Supports Standby / Hibernate mode

Supports Battery low suspend Supports resume from modem ring

Feature Specification

Introduction

1 - 4 System Specifications

1.Introduction

Power Full Range AC adapter

AC Input: 100~240V, 50~60Hz DC Output: 20V, 7.5A

One removable Smart Li-Ion battery

Indicator LED indicators (Power On/ AC-In/ Suspend, Battery Charging/ Battery Full, E-Mail, HDD, Num Lock, Caps Lock,

Scroll Lock)

Environmental Spec Temperature

Operating: 5

°C ~ 35°C

Non-Operating: -20°C ~ 60°C

Relative Humidity

20% ~ 80% 10% ~ 90%

Physical Dimensions 393 (w) x 275 (d) x 37.5 (h) mm

Weight Around 3.85 kg (depend on optional modules included) without battery

Optional DVD-ROM Drive module

DVD-ROM & CD-RW Combo Drive module CD-RW Drive module DVD-RW Drive module DVD Dual Drive module Software DVD Player

Wireless LAN module Bluetooth module PC Camera module Sub Woofer Module TV Tuner module

Feature Specification

Introduction

External Locator - Top View 1 - 5

1.Introduction

External Locator - Top View

Figure 1

Top View

1. Optional PC Camera

2. LCD

3. Built-In Microphone

4. LED Power & Communication Indicators

5. LED Status Indicators

6. Hot-Key buttons

7. Close Cover/Lid Switch

8. Power Button

9. Keyboard

10. TouchPad and Buttons

11. Model B only - BuiltIn Speakers

11 11

Introduction

1 - 6 External Locator - Front & Left Side Views

1.Introduction

External Locator - Front & Left Side Views

Figure 2

Front View

1. LCD Latches

2. Model B only Consumer Infrared Transceiver (functions with optional TV Tuner)

3. Mini IEEE 1394 Port

4. S/P DIF Out Port

5. Microphone-In Jack

6. Headphone-Out Jack

7. Infrared Transceiver

8. Wireless/Bluetooth Device ON/OFF Switch

9. Built-In Speakers

4 5

9 9

Figure 3

Left Side View

1. CD Device Bay

2. Card Reader

3. PC Card/ PCMCIA Slot

4. PC Card/PCMCIA Slot Eject Buttons

Introduction

External Locator - Right Side & Rear Views 1 - 7

1.Introduction

External Locator - Right Side & Rear Views

Figure 4

Right Side View

1. Security Lock Slot

2. Model B only - TV Tuner Module

Figure 5

Rear View

1. Vent

2. DC-In Jack

3. 2 * USB 2.0/1.1 Ports

4. External Monitor (CRT) Port

5. Parallel Port

6. Serial Port

7. S-Video-Out Port

8. PS/2 Type Port

9. RJ-11 Phone Jack

10. RJ-45 LAN Jack

4 5 6 7 8 9

Introduction

1 - 8 External Locator - Bottom View

1.Introduction

External Locator - Bottom View

Figure 6

Bottom View

1. Vent/Fan Intake

2. Battery Cover

3. Hard Disk Cover

4. Bluetooth Module Cover

5. CPU & Memory Socket Cover

6. Model B only Optional Module Cover (Sub Woofer or TV Tuner)

Note: The RAM and

optional Wireless LAN module are located under the CPU Heatsink Cover.

Introduction

Mainboard Overview - Top (Key Parts) 1 - 9

1.Introduction

Mainboard Overview - Top (Key Parts)

Figure 7

Mainboard Top

Key Parts

1. PC Card Assembly

2. Northbridge - SiS 648FX (839 mBGA)

3. Southbridge - SiS 963 (371 mBGA)

4. LAN Realtek RTL 8110S

5. VGA Chipset -ATI Mobility M11

6. Video RAM

Introduction

1 - 10 Mainboard Overview - Bottom (Key Parts)

1.Introduction

Mainboard Overview - Bottom (Key Parts)

Figure 8

Mainboard Bottom

Key Parts

1. CPU Socket (no CPU installed)

2. Memory Slots (no memory installed)

3. CardBus ENE 1410

4. ALC650 - Audio Codec

5. LPC - H8

6. LPC Super I/O NS PC87393

7. Clock Generator

8. Clock Buffer

9. Flash ROM

10. 1394 PHY TSB41LV01

Introduction

Mainboard Overview - Top (Connectors) 1 - 11

1.Introduction

Mainboard Overview - Top (Connectors)

Figure 9

Mainboard Top

Connectors

1. Modem Cable Connector (CN1)

2. LCD (and Inverter) Connector (JLCD1)

3. Video Camera Cable Connector (JCCD1)

4. Power Switch Board Cable Connector (JSW1)

5. TouchPad Cable Connector (JTP1)

6. Keyboard Cable Connector (JKB1)

7. Modem Module Connector (JMDC1)

8. Speaker Cable Connector (JSPK1

- 6)

9. Card Reader Connector (JCR1)

10. Fan Cable (JFAN2)

11. TV Tun e r Connector (JTV1)

2 3

Introduction

1 - 12 Mainboard Overview - Bottom (Connectors)

1.Introduction

Mainboard Overview - Bottom (Connectors)

Figure 10

Mainboard Bottom

Connectors

1. Wireless LAN Connector (JWL1)

2. DDR Fan Cable Connector (JFAN3)

3. CD-ROM Device Connector (JCDROM1)

4. Hard Disk Cable Connector (JHDD1)

5. Bluetooth Module Connector (JBT1)

6. CMOS Battery Cable Connector (JBAT1)

7. Battery Cable Connector (CN5)

Disassembly

Overview 2 - 1

2.Disassembly

2: Disassembly

Overview

This chapter provides step-by-step instructions for disassembling the D47EV/D48EV 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 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

 will 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 replacing 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 pliers 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.

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 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 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 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 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

Disassembly

2 - 4 Disassembly Steps

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: