Clevo E4128Q, E4128Q-C service manual

E4128Q/E4128Q-C

Notebook Computer
E4128Q/E4128Q-C

Service Manual

Preface

Preface

I

Preface

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 2010

Trademarks

Intel, Celeron and Intel Core are 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.

II

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 E4128Q/
E4128Q-C 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
Appendix C, Updating the FLASH ROM BIOS

Preface

III

Preface

Preface

IMPORTANT SAFETY INSTRUCTIONS

Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per­sons when using any electrical equipment:

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

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

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

4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They may
explode. Check with local codes for possible special disposal instructions.

5. This product is intended to be supplied by a Listed Power Unit with an AC Input of 100 - 240V, 50 - 60Hz, DC Output
of 19V, 3.42A OR 18.5V, 3.5A (65 Watts) minimum AC/DC Adapter.

CAUTION

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

IV

FCC Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired operation.

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

V

Preface



Power Safety

Warning

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

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

5. Take care when using peripheral devices.

Preface

VI

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 stea dy, uninterrupted po wer supply. If you ar e
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



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.

Battery Level

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

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

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

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

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

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

• Keep the battery away from metal appliances.

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

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

Battery Guidelines

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

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

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

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

Preface

Preface

VII

Preface



Shut Down

Windows Vista

: Note that you
should always shut your comput­er down by choosing Shut Down
(in the Lock button Menu) from
the Start Menu.

Windows 7:

Note that you
should always shut your comput­er down by choosing Shut Down
from the Start Menu.

This will help prevent hard disk or
system problems.

Figure 1

Opening the Lid/LCD/Com-

puter with AC/DC Adapter

Plugged-In

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.

System Startup

1. Remove all packing materials.

2. Place the computer on a stable surface.

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

4. Attach the AC/DC adapter to the DC-In jack on the left of the computer, then plug the AC power cord into an outlet, and connect the AC power cord to
the AC/DC adapter.

5. Use one hand to raise the
the base of the computer (Note: Never lift the computer by the lid/LCD).

6. Press the power button to turn the computer “on”.

lid/LCD to a comfortable viewing angle

(do not exceed 130 degrees); use the other hand (as illustrated in Figure 1) to support

VIII

Preface

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IX

Preface

Preface

X

Contents

Preface

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Removing the Optical (CD/DVD) Device ......................................2-8

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

Removing and Installing the Processor .........................................2-11

Removing the Wireless LAN Module ...........................................2-14

Removing the 3.75G Module ........................................................2-15

Removing the Bluetooth Module ..................................................2-16

Removing the LCD Front Cover ...................................................2-17

Removing the Keyboard ................................................................2-18

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

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

Top ................................................................................................. A-3

Bottom ........................................................................................... A-4

LCD ............................................................................................... A-5

HDD ............................................................................................... A-6

Blu-Ray Combo ............................................................................. A-7

DVD-Super Multi Drive ................................................................ A-8

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

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

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

Processor 1/7 ...................................................................................B-4

Processor 2/7 ...................................................................................B-5

Processor 3/7 ...................................................................................B-6

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

Processor 5/7 ...................................................................................B-8

Processor 6/7 ...................................................................................B-9

Processor 7/7 .................................................................................B-10

DDRIII SO-DIMM_0 ...................................................................B-11

DDRIII SO-DIMM_1 ...................................................................B-12

LVDS, Inverter .............................................................................B-13

HDMI, CRT ..................................................................................B-14

IBEXPEAK - M 1/9 ......................................................................B-15

IBEXPEAK - M 2/9 ......................................................................B-16

IBEXPEAK - M 3/9 ......................................................................B-17

IBEXPEAK - M 4/9 ......................................................................B-18

IBEXPEAK - M 5/9 ......................................................................B-19

IBEXPEAK - M 6/9 ......................................................................B-20

IBEXPEAK - M 7/9 ......................................................................B-21

IBEXPEAK - M 8/9 ......................................................................B-22

IBEXPEAK - M 9/9 ......................................................................B-23

Preface

XI

Preface

New Card, Mini PCIE .................................................................. B-24

CCD, 3G, TPM .............................................................................B-25

Card Reader, LAN (JMB251) ...................................................... B-26

LAN (JMC251), SATA HDD, ODD ...........................................B-27

Audio Codec VIA 1812 ................................................................B-28

KBC-ITE IT8502E ....................................................................... B-29

LED, MDC, BT ............................................................................ B-30

USB, Fan, TP, Multi Con1 ........................................................... B-31

5VS, 3VS, 1.05VS ........................................................................B-32

Power 3.3V/5V .............................................................................B-33

Power 1.5V/0.75V/1.8VS .............................................................B-34

Power 1.1VS_VTT .......................................................................B-35

Power VGFX_CORE ................................................................... B-36

V-Core ..........................................................................................B-37

DC-In, Charger .............................................................................B-38

Click Board ..................................................................................B-39

Preface

Audio / USB / RJ11 Board ........................................................... B-40

Power Switch & LID Board .........................................................B-41

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

To update the FLASH ROM BIOS you must: C-1

Download the BIOS .......................................................................C-1

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

drive ................................................................................................C-1

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

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

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

XII

Chapter 1: Introduction

Overview

This manual covers the information you need to service or upgrade the E4128Q/E4128Q-C 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 7, Windows Vista, etc.) have their own manuals as do application software (e.g. word
processing and database programs). If you have questions about those programs, you should consult those manuals.

Introduction

The E4128Q/E4128Q-C 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.

1.Introduction

Overview 1 - 1

Introduction



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.

Specifications

1.Introduction

Processor Options

Intel® Core i7 Processor
i7-620M (2.66GHz)

4MB L3 Cache & 1066MHz FSB

Intel® Core i5 Processor
i5-540M (2.53GHz), i5-520M (2.4GHz),

i5-430M (2.26GHz)

3MB L3 Cache & 1066MHz FSB

Intel® Core i3 Processor
i3-350M (2.26GHz), i3-330M (2.13GHz)

3MB L3 Cache & 1066MHz FSB

LCD Options

14" HD/HD+ TFT LCD

Core Logic

Intel® HM55 Chipset

Memory

Two 204 Pin SO-DIMM Sockets Sup por ting DDR3
1333MHz Memory

Memory Expandable up to 8GB

Video Adapter

Intel ® HM55 Integrated Video

Shared Memory Architecture of up to 1748MB
MS DirectX® 10 compatible

BIOS

One 32Mb SPI Flash ROM
Phoenix™ BIOS

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" 9.5 mm (h) SATA (Serial) HDD

Audio

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

Keyboard

“WinKey” keyboard (with embedded numeric keypad)

Pointing Device

Built-in Touchpad

Security

Security (Kensington® Type) Lock Slot
BIOS Password

Interface

Three USB 2.0 Ports
One HDMI Out Port
One Headphone-Out Jack
One Microphone-In Jack
One RJ-45 LAN Jack
One DC-in Jack
One External Monitor Port

1 - 2 Specifications

Introduction

Communication

10Mb/100Mb/1000Mb Ethernet LAN
(Factory Option) 1.3M & 300K Pixel USB PC Camera

Module
(Factory Option) Bluetooth 2.1 + EDR Module

(Factory Option) 3.75G/HSPA Half Mini-Card Module

Wireless LAN Module Options:

(Factory Option) Intel® WiFi Link 1000 (802.11b/g/n)
Wireless LAN Half Mini-Card Module

(Factory Option) Intel® WiFi Link 6200 (802.11a/g/n)
Wireless LAN Half Mini-Card Module

(Factory Option) Third-Party 802.11b/g/n Wireless LAN
Half Mini-Card Module

Card Reader

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

Note: MS Duo/ Mini SD/ RS MMC Cards require a PC
adapter

Power

6 Cell Smart Lithium-Ion Battery Pack, 48.84WH
6 Cell Smart Lithium-Ion Battery Pack, 62.16WH

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

Dimensions & Weight

Model A:

341mm (w) * 238.5mm (d) * 16 - 34mm (h)

2.2 kg (with 48.84WH Battery and ODD)

1.Introduction

Environmental Spec

Temperature

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

Relative Humidity

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

°C - 35°C

1-3

Introduction

Figure 1

Top View

1. Optional Built-In
PC Camera

2. LCD

3. Power Button

4. Hot Key Buttons

5. LED Status
Indicators

6. Keyboard

7. Built-In
Microphone

8. Touchpad &
Buttons

2

4

1

6

7

3

5

8

External Locator - Top View with LCD Panel Open

1.Introduction

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

External Locator - Front & Right side Views

Figure 2

Front Views

1. LED Power
Indicators

Figure 3

Right Side Views

1. Microphone-In
Jack

2. Headphone-Out
Jack

3. USB 2.0 Port

4. Optical Device
Drive Bay

5. Security Lock
Slot

1

142 3

5

Introduction

1.Introduction

External Locator - Front & Right side Views 1 - 5

Introduction

Figure 4

Left Side View

1. DC-In Jack

2. External Monitor
Port

3. RJ-45 LAN Jack

4. HDMI-Out Port

5. Vent/Fan Intake/
Outlet

6. 2 * USB 2.0 Ports

7. 7-in-1 Card
Reader

1

4

3

5

2

6 6

7

Figure 5

Rear View

1. Battery

1

1.Introduction

External Locator - Left Side & Rear View

1 - 6 External Locator - Left Side & Rear View

External Locator - Bottom View

Figure 6

Bottom View

1. Battery

2. Component Bay
Cover

3. Vent/Fan Intake/
Outlet

4. Hard Disk Bay
Cover

5. 3.75G/HSPA
USIM Card
Cover (optional)



Overheating

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

2

3

1

4

3

3

5

2

3

1

4

3

3

WITHOUT 3G WITH 3G

Introduction

1.Introduction

External Locator - Bottom View 1 - 7

Introduction

Figure 7

Mainboard Top

Key Parts

1. JMC251

2. KBC ITE IT8512E

3

4

2

1

1.Introduction

Mainboard Overview - Top (Key Parts)

1 - 8 Mainboard Overview - Top (Key Parts)

Mainboard Overview - Bottom (Key Parts)

7

1

2

3

4

5

6

Figure 8

Mainboard Bottom

Key Parts

1. CPU Socket (no
CPU installed)

2. Memory Slots
DDR3 SO-DIMM

3. Intel HM55

4. Mini-Card
Connector (3G
Module)

5. Audio Codec

6. Mini-Card
Connector (WLAN
Module)

7. Card Reader
Socket

Introduction

1.Introduction

Mainboard Overview - Bottom (Key Parts) 1 - 9

Introduction

Figure 9

Mainboard Top

Connectors

1. USB Port

2. Microphone
Cable Connector

3. Audio Cable
Connector

4. TouchPad Cable
Connector

5. Keyboard Cable
Connector

6

8

9

7

10

11

5

1

1

4

2

3

Mainboard Overview - Top (Connectors)

1.Introduction

1 - 10 Mainboard Overview - Top (Connectors)

Mainboard Overview - Bottom (Connectors)

Figure 10

Mainboard Bottom

Connectors

1. CCD Connector

2. LCD Cable
Connector

3. CMOS Cable
Connector

4. BT Cable
Connector

5. ODD Connector

6. HDD Connector

7. MDC Cable
Connector

8. Fan Cable
Connector

1

2

3

4

5

6

8

7

Introduction

1.Introduction

Mainboard Overview - Bottom (Connectors) 1 - 11

Introduction

1.Introduction

1-12

Chapter 2: Disassembly



Information



Warning

Overview

This chapter provides step-by-step instructions for disassembling the E4128Q/E4128Q-C series notebook’s parts and
subsystems. When it comes to reassembly, reverse the procedures (unless otherwise indicated).

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

Disassembly

Procedures such as upgrading/replacing the RAM, optical device and hard disk are included in the User’s Manual but are
repeated here for your convenience.

To make the disassembly process easier each section may have a box in the page margin. Information contained under
the figure # will give a synopsis of the sequence of procedures involved in the disassembly procedure. A box with a 
lists the relevant parts you will have after the disassembly process is complete. Note: The parts listed will be for the dis­assembly procedure listed ONLY, and not any previous disassembly step(s) required. Refer to the part list for the previ­ous disassembly procedure. The amount of screws you should be left with will be listed here also.

A box with a  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

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



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.

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 component s 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 no t pull on th e wir e.

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 p arts, such as
screws, loose inside the computer.

Cleaning

Do not apply cleaner directly to the computer, use a soft clean cloth.
Do not use volatile (petroleum distillates) or abrasive cleaners on any part of the computer.

Disassembly

2.Disassembly

Overview 2 - 3