Clevo A110EU Service Manual

A110EU SERVICE MANUAL

Preface

LCD Computer A110EU

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 2012

Trademarks

Intel, Celeron, 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 A110EU se- ries LCD 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 Appendix C, Wall Moutning Information Appendix D, Updating the FLASH ROM BIOS

Preface

FCC Statement

(Federal Communications Commission)

You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Re orient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the service representative or an experienced radio/TV technician for help.

Operation is subject to the following two conditions:

1. This device may not cause interference. And

2. This device must accept any interference, including interference that may cause undesired operation of the device.

Preface

FCC RF Radiation Exposure Statement:

1. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

2. This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environm en t. This equ ipm e nt should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.

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 e xample near a bath tu b, wash bowl, kitch en sink or la un dry tu b, in a wet baseme nt or near a swimming pool.

2. Avoid using this equipment with a telephone line (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 dispo se of batteries in a fire. They may explode. Che ck with local codes for possible special disposal instructions.

5. This product is intended to be supplied b y a L iste d Po wer Unit (Full Range AC/DC Adapter – AC Input 100 - 240V, 50 - 60Hz, DC Output 19V, 6.3A).

CAUTION

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



Warning

Use only shielded cables to connect I/O devices to this equipment. You are cautioned that changes or modifications not expressly approved by the manufacturer for compliance with the above standards could void your authority to op erate the equipment.

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.

4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and oth er 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.

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.



Removal Warning

When removing any cover(s) and screw(s) for the purposes of device upgrade, remember to replace the cover(s) and screw(s) before restoring power to the system.

Also note the following when the cover is removed:

• Hazardous moving parts.

• Keep away from moving fan blades

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 and power cord). You must also remove your battery in order to prevent accidentally turning the machine on.

Preface

VII

Preface

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.

Servicing

Do not attempt to service the computer yourself. Doing so may violate your warranty and expose you and the computer to electric shock. Refer all servicing to authorized service personnel. Unplug the computer from the power supply. Then refer servicing to qualified service personnel under any of the following conditions:

• When the power cord is damaged or frayed.

• If the computer has been exposed to any liquids.

• If the computer does not work normally when you follow the operating instructions.

• If the computer has been dropped or damaged (do not touch the poi s onous liquid if the LCD panel breaks).

• If there is an unusual odor, heat or smoke coming from your computer.



Removal Warning

When removing any cover(s) and screw(s) for the purposes of device upgrade, remember to replace the cover(s) and screw(s) before turning the computer on.

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 computer’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 computer.

System Startup

1. Remove all packing materials, CDs/DVDs and floppy disks etc.

2. Securely attach any peripherals you want to use with the computer (e.g. keyboard and mouse) to their ports.

3. Attach the AC/DC adapter to the DC-In jack located at the rear of the LCD, then plug the AC power cord into an outlet, and connect the AC power cord to the AC/DC adapter.

4. Push the power button at the front of the computer (along the bottom of the LCD) to turn the computer “on”.

Figure 1 -

Computer with AC/DC Adapter Plugged-In/Power Button

Power Button (located along the bottom of the LCD)

Preface

Contents

Notice ............................................................................................. 1-II

About this Manual .........................................................................1-III

FCC Statement ..............................................................................1-IV

FCC RF Radiation Exposure Statement: ........................................1-V

Cleaning ...................................................................................... 1-VII

Servicing ...................................................................................... 1-VII

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

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

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

Tilting the LCD Screen & Adjusting the Height .............................1-4

External Locator - Front View ........................................................1-5

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

External Locator - Rear View .........................................................1-7

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

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

Mainboard Overview - Top (Connector) ......................................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 and Installing the Battery ...............................................2-5

Removing the Rear Top Cover ........................................................2-7

Removing the Hard Disk Drive .......................................................2-8

Hard Disk Upgrade Process ............................................................2-8

Removing the Optical (CD/DVD) Device ....................................2-13

Upgrading the System Memory (RAM) ........................................2-14

Removing the Stand ...................................................................... 2-16

Removing the Wireless LAN Module ..........................................2-17

Removing the CPU ....................................................................... 2-18

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

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

Front ............................................................................................... A-3

Front (No CCD) ............................................................................. A-4

MB ................................................................................................. A-5

Back ............................................................................................... A-6

HDD ............................................................................................... A-7

DVD ............................................................................................... A-8

Combo ............................................................................................ A-9

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

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

Processor 1/7 ...................................................................................B-3

Processor 2/7 ...................................................................................B-4

Processor 3/7 ...................................................................................B-5

Processor 4/7 ...................................................................................B-6

Processor 5/7 ...................................................................................B-7

Processor 6/7 ...................................................................................B-8

Processor 7/7 ...................................................................................B-9

DDR3 SO-DIMM_0 .....................................................................B-10

DDR3 SO-DIMM_1 .....................................................................B-11

PCH PCI ......................................................................................B-12

PCH USB/PCIE/DMI ...................................................................B-13

PCH SATA ...................................................................................B-14

PCH GPIO/HDA ..........................................................................B-15

PCH NVRAM/HDMI ...................................................................B-16

PCH FDI/USB3/Clock ..................................................................B-17

Preface

PCH Power ...................................................................................B-18

PCH Power ...................................................................................B-19

PCH GND .................................................................................... B-20

LVDS, Inverter ............................................................................. B-21

SCALAR ...................................................................................... B-22

SCALAR-1 ...................................................................................B-23

HDMI IN, USB2.0*2 ...................................................................B-24

HDMI OUT .................................................................................. B-25

KBC-ITE IT8518 .........................................................................B-26

Audio Codec ALC269 .................................................................. B-27

AMP2607 & Audio Switch .......................................................... B-28

Card Reader / RTS5229 ...............................................................B-29

LAN (Intel LAN82579) ............................................................... B-30

LAN CON/New Card ................................................................... B-31

HDD/ODD/ESATA ..................................................................... B-32

USB3.0 ......................................................................................... B-33

WLAN/TPM1.2/CCD/TP ............................................................ B-34

5VS, 3VS, 1.5VS_CPU, 12V .......................................................B-35

3.3V_M, 1.05V_M, 1.05VS_VTT ............................................... B-36

COM Port / PS2 ............................................................................B-37

VDD3, VDD5 ...............................................................................B-38

Power 0.925V/1.8VS ....................................................................B-39

Power 1.5V/1.05VS ......................................................................B-40

Power VCORE1 ........................................................................... B-41

Power VCORE2 ........................................................................... B-42

AC-In, Charger ............................................................................. B-43

Audio/USB Board ........................................................................B-44

Power SW LED CIR Board ......................................................... B-45

Power Sequence ...........................................................................B-46

Wall Mounting Guide............................. C-1

Removing the Stand .......................................................................C-2

Mounting Systems ..........................................................................C-3

General Guidelines for Wall Mounting ..........................................C-4

Mounted System Example ..............................................................C-5

Updating the FLASH ROM BIOS .........D-1

Download the BIOS ....................................................................... D-1

Unzip the downloaded files to a bootable CD/DVD/ or

USB Flash drive ............................................................................. D-1

Set the computer to boot from the external drive .......................... D-1

Use the flash tools to update the BIOS .......................................... D-2

Restart the computer (booting from the HDD) .............................. D-2

Introduction

Overview 1 - 1

1.Introduction

Chapter 1: Introduction

Overview

This manual covers the information you need to service or upgrade the A110EU series LCD 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 7, 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 A110EU series computer is designed to be upgradeable. See Disassembly 2 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 Specifications

1.Introduction

Specifications



Latest Specification Information

The specifications listed here are correct at the time of sending them to the press. Certain items (particularly processor types/speeds) may be changed, delayed or updated due to the manufacturer's release schedule. Check with your service center for more details.



CPU

The CPU is not a user serviceable part. Accessing the CPU in any way may violate your warranty.

Processor Options

Intel® Core™ i7 Processor i7-3770S (3.10GHz) 8MB L3 Cache, 22nm, DDR3-1600MHz, TDP 65W i7-3570S (3.10GHz) 6MB L3 Cache, 22nm, DDR3-1600MHz, TDP 65W Intel® Core™ i5 Processor i5-3550S (3.00GHz), i5-3475S (2.90GHz), i5-3470S

(2.90GHz), i5-3450S (2.80GHz), i5-3570T (2.30GHz) 6MB L3 Cache, 22nm, DDR3-1600MHz, TDP 65W Intel® Pentium® Processor G640 (2.80GHz) 3MB L3 Cache, 22nm, DDR3-1066MHz, TDP 65W Intel® Celeron® Processor G540 (2.50GHz) 2MB L3 Cache, 22nm, DDR3-1066MHz, TDP 65W

Core Logic

Intel® HM61 Chipset

BIOS

One 48Mb SPI Flash ROM AMI BIOS

Memory

Two 204 Pin SO-DIMM Sockets Supporting DDR3 1333/ 1600MHz Memory

Memory Expandable up to 8GB

Storage

(Factory Option) One Changeable 12.7mm(h) Optical Device Type Drive (Super Multi Drive Module or

Blu-Ray Combo Drive Module) One Changeable 2.5" 9.5mm (h) SATA (Serial) HDD One Changeable 3.5" 25mm (h) SATA (Serial) HDD

Video Adapter

Intel Integrated GPU

(GPU is Dependent on Processor)

Intel® HD Graphics

Dynamic Frequency (Intel Dynamic Video Memory Technology for up to 1.7GB)

Microsoft DirectX®10 Compatible

Intel® HD Graphics 2500

Dynamic Frequency (Intel Dynamic Video Memory Technology for up to 1.7GB)

Microsoft DirectX®11 Compatible

Intel® HD Graphics 4000

Dynamic Frequency (Intel Dynamic Video Memory Technology for up to 1.7GB)

Microsoft DirectX®11 Compatible

LCD

21.5" (54,61cm) FHD

Audio

High Definition Audio Compliant Interface Built-In Microphone 2 * Built-In Speakers

Security

BIOS Password Security (Kensington® Type) Lock Slot TPM 1.2

Introduction

Specifications 1 - 3

1.Introduction

Interface

Four USB 2.0 Ports Two USB 3.0 Ports One HDMI-In Port One HDMI-Out Port One Headphone-Out Jack One Microphone-In Jack Two RS232 Serial (COM) Ports Two PS/2 Ports One RJ-45 LAN Jack One DC-in Jack

Slots

One Slot for WLAN Module or Combo WLAN and Bluetooth Module

One ExpressCard/34(54) Slot

Card Reader

Embedded Multi-in-1 Card Reader

MMC (MultiMedia Card) / RS MMC SD (Secure Digital) / Mini SD / SDHC/ SDXC MS (Memory Stick) / MS Pro / MS Duo

Communication

Built-In Gigabit Ethernet LAN (Factory Option) 2.0M FHD PC Camera Module

WLAN/ Bluetooth Half Mini-Card Modules:

(Factory Option) Intel® Centrino® Wireless-N 2230 Wireless LAN (802.11b/g/n) + Bluetooth 4.0

(Factory Option) Third-Party Wireless LAN (802.11b/g/n) (Factory Option) Third-Party Wireless LAN (802.11b/g/n) +

Bluetooth 4.0

Power

Full Range AC/DC Adapter AC Input: 100 - 240V, 50 - 60Hz DC Output: 19V, 6.3A (120W)

(Factory Option) 6 Cell Smart Lithium-Ion Battery Pack,

62.16WH

Envionmental Spec

Temperature

Operating: 5°C - 35°C Non-Operating: -20°C - 60°C

Relative Humidity

Operating: 20% - 80% Non-Operating: 10% - 90%

Dimensions & Weight

525mm (w) * 49mm (d) * 418mm (h)) Around 7kg (with ODD)

Introduction

1 - 4 Tilting the LCD Screen & Adjusting the Height

1.Introduction

Tilting the LCD Screen & Adjusting the Height

It is possible to tilt the LCD screen in order to get the best possible viewing angle of the screen without glare etc.

• Place one hand at the top of the computer , and use the other to open the stand to an angle of around 15

degrees from the vertical position (the stand will allow you to adjust to the appropriate angle if you pull it out and let it spring back).

• Apply pressure with one hand at the top (at point ) of the computer (while holding on to the side with the other hand) to carefully push the LCD screen down in order to tilt it to the appropriate viewing angle (up to 50 degrees from the vertical position).

• Use one hand at the top of the computer (while holding on to the side with the other hand) to move the computer back to the original position

Figure 1

Adjust the Stand/LCD Screen Tilt

15°

Adjust the stand to tilt the computer to 15° from the vertical position.

50°

Apply pressure from the top of the screen to adjust the stand outwards (up to 50° from the vertical position).



Moving the

Computer

We strongly recommend using both hands to move the computer. You can use one hand to grip the computer by the stand, and the other to hold the top of the LCD screen.

It is recommended that you carry the computer with the LCD facing your body to avoid scratching the surface against other objects. However take care not to scratch the LCD with any personal items, belt fittings or jewelry etc.(one hand gripping the stand and the other gripping the top of the computer to avoid accidentally dropping it).

123

Introduction

External Locator - Front View 1 - 5

1.Introduction

External Locator - Front View

Figure 2

Front View

1. PC Camera (Optional)

2. PC Camera LED

3. Built-In Microphone

4. LCD (With Optional Touch Panel)

5. Power Button

6. Function Buttons

7. Power & System Activity LED Indicators

8. Speakers

Introduction

1 - 6 External Locator - Left & Right Side Views

1.Introduction

External Locator - Left & Right Side Views

Figure 3

Left & Right Side

Views

1. Stand

2. Multi-in-1 Card Reader

3. ExpressCard Slot /54(34)

4. 2 * USB 3.0 Port

5. HDMI-In Port

6. HDMI-Out Port

7. Emergency Eject Hole

8. Optical Device Drive Bay

9. Headphone-Out Jack

10.Microphone-In Jack

11.USB 2.0 Port

12.Stand



ExpressCard Slot

The ExpressCard Slot accepts either ExpressCard/34 or Ex-

pressCard/54 formats.

Multi-in-1 Card Reader

The card reader allows you to use the most popular digital storage card formats:

MMC (MultiMedia Card) / SD (Secure Digital) / MS (Memory Stick) /

MS Pro (Memory Stick Pro) / MS

Duo (requires PC adapter) / Mini SD (requires PC adapter) / RS MMC (requires PC adapter)

Introduction

External Locator - Rear View 1 - 7

1.Introduction

External Locator - Rear View

Figure 4

Rear View

1. Rear Co mpon ent Cover

2. Stand

3. Vent/Fan Intake

4. Carrying Ha ndle Area

5. USB Wireless Transceiver Cover (for Optional RF Keyboard & Mouse Kit)

6. Security Lock Slot

7. Battery

8. 2 * RS-232 Serial Ports

9. PS/2 Port (keyboard)

10.PS/2 Port (mouse)

11.DC-In Jack

12.2 * USB Ports

13.RJ-45 LAN Port



USB Port for Wireless Transceiver

Note that the USB port for the wireless transceiver is designed specifically for the optional RF Keyboard & Mouse kit supplied with this model only.

Do not use any other USB devices in this port.



Overheating

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

Introduction

1 - 8 Mainboard Overview - Top (Key Parts)

1.Introduction

Mainboard Overview - Top (Key Parts)

Figure 5

Mainboard Top

Key Parts

1. ExpressCard/34/ 54 Slot

2. TUSB7320

3. TSUMU88ADT3

4. KBC-ITE IT8518

5. Platform Controller Hub

Introduction

Mainboard Overview - Bottom (Key Parts) 1 - 9

1.Introduction

Mainboard Overview - Bottom (Key Parts)

Figure 6

Mainboard Bottom

Key Parts

1. CPU Socket (CPU uninstalled)

2. Memory Slots DDR3 SO-DIMM

3. Mini-Card Connector (WLAN Module)

4. Coin Battery

5. HDD/SDD Connector

Introduction

1 - 10 Mainboard Overview - Top (Connector)

1.Introduction

Mainboard Overview - Top (Connector)

Figure 7

Mainboard Top

Connector

1. Multi-in-1 Card Reader

Introduction

Mainboard Overview - Bottom (Connectors) 1 - 11

1.Introduction

Mainboard Overview - Bottom (Connectors)

Figure 8

Mainboard Bottom

Connectors

1. USB 3.0 Ports

2. HDMI-In Port

3. HDMI-Out Port

4. RJ-45 Lan Jack

5. USB 3.0 Port

6. DC-In Jack

7. PS/2 Port (keyboard)

8. PS/2 Port (mouse)

9. Serial Ports

10. Power Switch Cable Connector

11. Speaker Cable Connector

12. Battery Connector

13. CN1 Connector

14. SATA Connector 1

15. SATAP Connector

16. TP Connector

17. SATAP1 Connector

18. SATA Connector 2

19. Inverter Connector

20. CPU Fan Cable Connector

21. CCD Cable Connector

22. MIC Cable Connector

23. LCD Cable Connector

Introduction

1-12

1.Introduction

Disassembly

Overview 2 - 1

2.Disassembly

Chapter 2: Disassembly

Overview

This chapter provides step-by-step instructions for disassembling the A110EU series LCD computer’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, 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  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.



Warning



Information

Disassembly

2 - 2 Overview

2.Disassembly

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

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 re moving or replacing any p art, 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.



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).

Removal Warning

When removing any cover(s) and screw(s) for the purposes of device upgrade, remember to replace the cover(s) and screw(s) before turning the computer on.

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:

1. Remove the battery page 2 - 5

2. Install the battery page 2 - 6

To remove the Rear Top Cover: