AMD D900K User Manual

Notebook Computer D900K

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 January 2006

Trademarks

AMD Athlon™ is a trademark of Advanced Micro Devices, Inc

is a trademark of SRS Labs, Inc.

Windows

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

is a registered trademark of Microsoft Corporation.

WOW

technology is incorporated under license from SRS Labs, Inc.

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 D900K 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

III

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) durin g an ele ctrical sto rm. 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.

This product is intended to be supplied by a Listed Power Unit (DC Output 20V, 11A minimum AC/DC Adapter).

CAUTION

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

Preface

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

TELECOMMUNICATION LINE CORD

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 co mputer 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

4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and oth er strong mag- netic fields. These can hinder proper performance and damage your data.

5. Take care when using peripheral devices.

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.

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 are wet.

Do not use the power cord if it is broken.

Do not place heavy objects on the power cord.

Battery Precautions

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

• Do not continue to use a battery that has been dropped, or that appears damaged (e.g. bent or twisted) in any way. Even if the computer continues to work with a damaged battery in place, it may cause circuit damage, which may possibly result in fire.

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

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

• Keep children away from, and promptly dispose of a damaged battery. Always dispose of batteries carefully. Batteries may explode or leak if exposed to fire, or improperly handled or discarded.

• Keep the battery away from metal appliances.

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

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



Battery Disposal

The product that you have purchased contains a rechargeable b attery. The battery is recycl able. 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 i n your area for recycling options or p roper disposal.

Preface

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.

VII

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.

VIII

Contents

Preface

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

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

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

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

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

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

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

D900K Mainboard Overview - Top (Key Parts) ........................... 1-10

D900K Mainboard Overview - Bottom (Key Parts) .....................1-11

D900K Mainboard Overview - Top (Connectors) ........................1-12

D900K Mainboard Overview - Bottom (Connectors) ...................1-13

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 Optical (CD/DVD) Device ...................................... 2-6

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

Removing the Processor ..................................................................2-8

Removing the System Memory (RAM) ........................................2-10

Removing the VGA Card ..............................................................2-11

Removing the Keyboard ................................................................2-12

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

Removing the Modem ...................................................................2-14

Removing the TV Tuner Card ....................................................... 2-15

.......................................................................................................2-16

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

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

TOP (D900K) ................................................................................ A-3

BOTTOM (D900K) ....................................................................... A-4

LCD (D900K) ................................................................................ A-5

DVD - TOSHIBA (D900K) ........................................................... A-6

COMBO - TSST (D900K) ............................................................. A-7

DVD-DUAL RW (D900K) ........................................................... A-8

COMBO - TOSHIBA (D900K) ..................................................... A-9

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

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

CLOCK GENERATOR ..................................................................B-3

CPU-1 CONTROL/ HYPERTRANSPORT ...................................B-4

CPU-2 MEMORY INTERFACE ...................................................B-5

DDR MEMORY DIMM .................................................................B-6

DDR TERMINATION ...................................................................B-7

CPU-3 POWER/ GND ...................................................................B-8

NB K8T890-1 HT INTERFACE ....................................................B-9

NB K8T890-2 PCI-E INTERFACE .............................................B-10

NB K8T890-3 VLINK & VGA ....................................................B-11

SB VT8237A-1PCI/ USB .............................................................B-12

SB VT8237A-2 IDE, ISA & SATA .............................................B-13

SB VT8237A-3 LPC, LAN, VLINK ............................................B-14

VGA DAUGTHER CONNECTOR .............................................B-15

DVI/ TV OUT/ VIDEO IN CON .................................................B-16

PANEL CON/ LED INDICATOR ...............................................B-17

PCMCIA T11410 ..........................................................................B-18

PCMCIA POWER/ FAN CON ....................................................B-19

PCI 1394a TI TSB43AB22 ...........................................................B-20

GLAN RTL8110SBL ...................................................................B-21

HDD CON ....................................................................................B-22

Preface

LPC SUPER I/ O NS87393 .......................................................... B-23

LPT/ COM PORT CON/ Thermistor ........................................... B-24

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

CODEC ALC850 ......................................................................... B-26

AUDIO JACK & ADJ POWER ................................................... B-27

AUDIO DJ BBVL + CONTROL ................................................. B-28

USB/ CR/ CCD CON/ SRS .......................................................... B-29

MINI PCI/ NC/ MDC/ BT CON .................................................. B-30

POWER CONTROLLER 1 ......................................................... B-31

POWER CONTROLLER 2 ......................................................... B-32

SYSTEM POWER ....................................................................... B-33

VCORE ........................................................................................ B-34

+01.2VS, +1.5V, +2.5v, DDR ...................................................... B-35

CHARGER ................................................................................... B-36

AUDIO BOARD .......................................................................... B-37

AUDIO DJ BOARD ..................................................................... B-38

Preface

CD-ROM BOARD ....................................................................... B-39

CLICK BOARD ........................................................................... B-40

SWITCH BOARD ........................................................................ B-41

...................................................................................................... B-42

1: Introduction

Overview

This manual covers the information you need to service or upgrade the D900K 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, 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.

Introduction

The D900Kseries 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.

1.Introduction

Overview 1 - 1

Introduction

System Specifications

Feature Specification

1.Introduction

Processor Types AMD Athlon™ 64 FX-53 (89W), FX-55 (104W)

939-pin OuPGA Package

AMD Athlon™ 64 (67 - 85.3 W) 939-pin OuPGA Package

AMD Athlon™ 64 X2 (35 - 110 W) 939-pin OuPGA Package

Core Logic VIA K8T890CE + VT8237R Chipset LCD 17" WXGA (1440 * 900) / WSXGA+ (1680 * 1050) / WUXGA (1920 * 1200) TFT LCD Security Security (Kensington® Type) Lock Slot BIOS Password Memory Two 64-bit wide DDR Data Channels

Two 200 Pin DDR SODIMM Sockets Supporting DDR 400MHz Expandable up to 2GB (Compatible with 1024MB, 512MB, 256MB DDR 400MHz Modules)

BIOS One 512KB Flash ROM Phoenix BIOS

(µ0.09) 0.09 Micron Silicon-On-Insulator (SOI) Process Technology, 1MB On-Die L2 Cache Models 2400MHz/ /

2600MHz

µ0.09) 0.09 Micron Silicon-On-Insulator (SOI) Process

( Technology, 512KB On-Die L2 Cache Models 3000+/

3200+/ 3400+/ 3500+/ 3800+

(µ0.09) 0.09 Micron Silicon-On-Insulator (SOI) Process Technology , 1MB On-Die L2 Cache Models 3700+/ 4000+

(

µ0.09) 0.09 Micron Silicon-On-Insulator (SOI) Process

Technology, 1MB On-Die L2 Cache Models 3800+/ 4200+/ 4600+

(

µ0.09) 0.09 Micron Silicon-On-Insulator (SOI) Process

Technology , 2MB On-Die L2 Cache Models 4400+/ 4800+

1 - 2 System Specifications

Feature Specification

Introduction

Video Card Options

Storage Options One External USB 1.44Mb Floppy Disk Drive

NVIDIA GeForce Go 6800 NV42M High Performance Graphic Chip

256MB DDR OR DDR-III (DDR3) Video RAM On Board 256 bit Memory Interface PCI Express * 16 Fully DirectX® 9 Support Modular Design

NVIDIA GeForce Go 6800 Ultra NV42M Ultra -

256MB DDR-III (DDR3) Video RAM On Board 256 bit Memory Interface PCI Express * 16 Fully DirectX® 9 Support Modular Design

NVIDIA GeForce Go 7800 GTX 256MB DDR-III (DDR3) Video RAM On Board 256 bit Memory Interface PCI Express * 16 Fully DirectX® 9 Support Modular Design H.264 Encode Support (HD-DVD/BD-DVD Play back)

One Changeable Primary 2.5" 9.5mm (h) Serial (SATA) or Parallel (PATA) Hard Disk Drive One Changeable Secondary 2.5" 9.5mm (h) Hard Disk Drive (RAID Option in SATA Configurati on)

Supports Serial (SATA) and Parallel (PATA) HDDs RAID 0, RAID 1, HDD Fault Tolerance System in SATA Configuration

Ultra High Performance Graphic Chip

NVIDIA Quadro FX Go 1400 NV42GLM

256MB DDR-III (DDR3) Video RAM On Board 256 bit Memory Interface PCI Express * 16

OpenGL Support

Fully DirectX® 9 Support Modular Design

Ultra High Performance Graphic Chip



Video Card Options

Note that card types, specifications and drivers are subject to continual updates and changes. Check with your service center for the latest details on video cards supported.

1.Introduction

One Changeable Primary Optical Device Bay - 12.7 mm (h) for Optical CD/DVD Device Drive Options One Changeable Secondary Optical Device Bay - 12.7 mm (h) for Optical CD/DVD Device Drive Options

System Specifications 1 - 3

Introduction

Feature Specification

1.Introduction

Audio AC ‘97 Compliant Interface

SRS WOW Surround Sound Technology inside 3D Stereo Enhanced Sound System Virtual 8-Channel Sound System Compatible with Sound-Blaster PRO™

Keyboard & Pointing Device

PCMCIA One Type II PCMCIA 3.3V/5V Socket I/O Ports Four USB 2.0 Ports

Communication Infrared Transceiver

Full Size Winkey Keyboard with Numeric Keypad Built-In TouchPad (Scroll Functionality Included)

Two Mini-IEEE1394a Ports One S-Video-Out Jack for TV & HDTV Output One Serial Port One Parallel Port (LPT1) Supporting ECP/EPP One Infrared Transceiver (IrDA 1.1/FIR/SIR/ASKIR) One DVI-Out Port One PS/2 Port (Mouse/Keyboard) One Headphone/Speaker-Out Jack One Microphone-In Jack

Infrared Transfer 1cm ~ 1M Operating Distance

115.2K bps SIR 4M bps FIR IrDA 1.1 Compliant

10/100/1000 BASE-TX Fast Ethernet LAN on board Integrated V.90/56K AC’97 Modem (V.92 Compliant)

S/PDIF Digital Output (5.1 CH) Built-In Microphone 4 * Built-In Speakers Built-In Sub Woofer Built-In Audio "DJ" Console for Music CD (MP3 Format Compatible)

One S/PDIF Out Jack One RJ-11 Jack (Modem) One RJ-45 Jack (Local Area Network) One DC-In Jack One Line-In Jack for Audio Input One CATV-In Jack (Functions with Optional TV Tuner Module) One Consumer Infrared Transceiver (Functions with Optional TV Tuner Module) One S-Video-In Jack for Video Input (Functions with Optional TV Tuner Module)

802.11 b/g Mini-PCI Wireless LAN Module (Optional)

Bluetooth™ Class II V2.0 & 802.11b/g Wireless LAN MiniPCI interface Combo Module (Optional)

1.3M Pixel Video Camera Module (Optional)

Card Reader Embedded 10-in-1 Card Reader (MS/ MS Pro/ SD/ MMC/ CF/ Micro Drive/ SM/ MS Duo/ Mini SD/ MMC) Note: MS

Power Management

1 - 4 System Specifications

Duo/ Mini SD/ RS MMC Cards require a PC adapter Supports ACPI 2.0 Supports Hibernate/Stand by Modes

Feature Specification

Introduction

Power

Environmental Spec

Physical Dimensions & Weight

Optional Optical Drive Module Options:

Full Range AC/DC Adapter – AC in 100~240V, 47~63Hz DC Output 20V, 11 A (220 Watts) Easy Changeable 12-Cell Smart Lithium-Ion 6600mAH/14.8V Main Battery

Temperature

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

397mm (w) * 298mm (d) * 49.5mm (h) 5.80+3% kg with Battery

DVD/CD-RW Combo Drive Module DVD-Dual Drive Module

1.3M Pixel USB 2.0 Video Camera Module Cyberlink PowerDVD 6.0 Player Software

Relative Humidity

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

Hybrid (Analog & Digital) TV Tuner Module with Mini-PCI Interface

WLAN/Bluetooth Module Options:

Mini-PCI 802.11 b/g Wireless LAN Module OR Mini-PCI 802.11 b/g Wireless LAN + Bluetooth Combo

Module

1.Introduction

System Specifications 1 - 5

Introduction

Figure 1

Top View

1. Optional Built-In PC Camera

2. LCD

3. LED Power & Communication Indicators

4. Speakers

5. LED Status Indicators

6. Built-In Microphone

7. AP-Key Buttons

8. Power Button

9. Lid Sensor

10.Keyboard

1.Introduction

11. TouchPad and Buttons

External Locator - Top View with LCD Panel Open

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

External Locator - Front & Rear Views

4 4

Introduction

Figure 2

Front Views

1. LCD Latches

2. Audio "DJ" Player Controls

3. Consumer Infrared Transceiver

4. Speakers

1.Introduction

Figure 3

Rear Views

1 1

1. Vent/Fan Intake

2. DC-In Jack

3. Serial Port

4. Parallel Port

5. DVI-Out Port

3 4 52

6 7 8 9

6. PS2 Port

7. RJ-11 Phone Jack

8. RJ-45 LAN Jack

9. CATV Jack*

10.S-Video-In Jack

*Enabled with Optional Mini-

PCI TV Tuner Only

External Locator - Front & Rear Views 1 - 7

Introduction

Figure 4

Left Side View

1. S-Video-Out Jack

2. 4 * USB 2.0 Ports

3. 2 * Mini-IEEE 1394a Port

4. Line-In Jack

5. S/PDIF-Out Jack

6. Microphone-In Jack

7. Headphone-Out Jack

8. 10-in-1 Card Reader

9. PC Card Slot

10.Infrared Transceiver

1.Introduction

Figure 5

Right Side View

External Locator - Left & Right Side View

4 75

1. Primary Optical Device Drive Bay (for CD/DVD Device)

2. Secondary Optical Device Drive Bay (for CD/DVD Device)

3. Security Lock Slot

1 - 8 External Locator - Left & Right Side View

External Locator - Bottom View

Introduction

Figure 6

Bottom View

1. Battery

2. Vent/Fan Intake

3. Memory (RAM) Cover

4. Hard Disk Cover

5. Sub Woofer

6. Video Card Cover

7. CPU Cover

1.Introduction

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



Overheating

External Locator - Bottom View 1 - 9

Introduction

Figure 7

Mainboard Top

Key Parts

1. HS5019

2. Mini-PCI Socket (TV Tuner Module)

3. Mini-PCI Socket (WLAN Module)

4. Modem Socket

5. Clock generator

6. Northbridge-VIA K8T890

7. Flash BIOS ROM

8. WOW

9. PC Card Assembly

1.Introduction

10.Southbridge-VIA VT8237R

11. BlueBirdVL+

D900K Mainboard Overview - Top (Key Parts)

1 - 10 D900K Mainboard Overview - Top (Key Parts)

Introduction

D900K Mainboard Overview - Bottom (Key Parts)

Figure 8

Mainboard Bottom

Key Parts

1. CPU Socket (no CPU installed)

2. RTL8110SBL 10/ 100/1000 LAN

3. 42A33NT

4. Memory Slots DDR So-DIMM

5. ALC655 Audio Codec

6. VGA sockets

7. 3CA00HW

8. HDD Socket

1.Introduction

D900K Mainboard Overview - Bottom (Key Parts) 1 - 11

Introduction

Figure 9

Mainboard Top

Connectors

1. Inverter Board Connector

2. Audio Connector

3. 1394a Connector

4. SPK 1 Connector

5. CCD Cable Connector

6. LCD Connector

7. LED Connector

AP-Key Cable

Connector

9. CPU Fan 1 Cable Connector

10.CPU Fan 2 Cable

1.Introduction

Connector

11. SPK 2 Connector

12.Touch Pad Connector

13.Keyboard Cable Connector

14.SPK 3 Connector

15.SPK 4 Connector

16.Audio Player Controls Connector

17.Card Reader Connector

18.SPK 4 Connector

D900K Mainboard Overview - Top (Connectors)

10 11

1 - 12 D900K Mainboard Overview - Top (Connectors)

Introduction

D900K Mainboard Overview - Bottom (Connectors)

Figure 10

Mainboard Bottom

Connectors

1. System Memory Fan Cable Connector

2. Heat sink Cable Connector

3. DC-In Jack

4. Serial Port

5. Parallel Port

6. DVI-Out Port

7. PS2 Port

8. RJ-11 Phone Jack

9. RJ-45 LAN Jack

10.CATV Jack*

11. S-Video-In Jack*

12.S-Video-Out Jack

13.4 * USB 2.0 Ports

14.Battery Connector

15.VGA Fan Cable Connector

16.Optical Device Connector

1.Introduction

D900K Mainboard Overview - Bottom (Connectors) 1 - 13

Introduction

1.Introduction

1-14

2: Disassembly

Overview

This chapter provides step-by-step instructions for disassembling the D900K 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, CD device and hard disk are included in the User’s Manual but are repeated here for your convenience.

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

the figure # will give a synopsis of the sequence of procedures involved in the disassembly procedure. A box with a  lists the relevant parts you will have after the disassembly process is complete. Note: The parts listed will be for the dis-

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

2.Disassembly



Information



Warning

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.

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 component s. When re moving or replacing any p art, be careful not to le ave small part s, such as screws, loose inside the computer.

Disassembly



Power Safety

Warning

2.Disassembly

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.

Overview 2 - 3

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