Clevo M720S User manual

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Notebook Computer
M720S
Service Manual

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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 ven-
dor. 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 publica-
tion, 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
May 2007
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.

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About this Manual
This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and
inspection of personal computers.
It is organized to allow you to look up basic information for servicing and/or upgrading components of the M720S series
notebook PC.
The following information is included:
Chapter 1, Introduction, provides general information about the location of system elements and their specifications.
Chapter 2, Disassembly, provides step-by-step instructions for disassembling parts and subsystems and how to upgrade
elements of the system.
Appendix A, Part Lists
Appendix B, Schematic Diagrams

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IMPORTANT SAFETY INSTRUCTIONS
Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per-
sons 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 elec-
trical shock from lightning.
3. Do not use the telephone to report a gas leak in the vicinity of the leak.
4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They may
explode. Check with local codes for possible special disposal instructions.
5. This product is intended to be supplied by a Listed Power Unit (DC Output 20V, 3.25A (65W) minimum AC/DC Adapter, OR by
a DC Output 20V, 4.5A (90W) minimum AC/DC Adapter if you are using the optional port replicator.
CAUTION
Always disconnect all telephone lines from the wall outlet before servicing or disassembling this equipment.
TO REDUCE THE RISK OF FIRE, USE ONLY NO. 26 AWG OR LARGER,
TELECOMMUNICATION LINE CORD
This Computer’s Optical Device is a Laser Class I Product

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Instructions for Care and Operation
The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions:
1. Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged.
2. Keep it dry, and don’t overheat it. Keep the computer and power supply away from any kind of heating element. This
is an electrical appliance. If water or any other liquid gets into it, the computer could be badly damaged.
3. Follow the proper working procedures for the computer. Shut the computer down properly and don’t forget to save
your work. Remember to periodically save your data as data may be lost if the battery is depleted.
Do not expose the computer
to any shock or vibration. Do not place it on an unstable surface. Do not place anything heavy on the computer.
Do not expose it to excessive
heat or direct sunlight. Do not leave it in a place where foreign matter or mois-
ture may affect the system.
Don’t use or store the com-
puter in a humid environment. Do not place the computer on any surface which will block
the vents.
Do not turn off the power
until you properly shut down
all programs.
Do not turn off any peripheral
devices when the computer is
on.
Do not disassemble the com-
puter by yourself. Perform routine maintenance on your computer.

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4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag-
netic fields. These can hinder proper performance and damage your data.
5. Take care when using peripheral devices.
Power Safety
The computer has specific power requirements:
• Only use a power adapter approved for use with this computer.
• Your AC adapter may be designed for international travel but it still requires a steady, uninterrupted power supply. If you are
unsure of your local power specifications, consult your service representative or local power company.
• The power adapter may have either a 2-prong or a 3-prong grounded plug. The third prong is an important safety feature; do
not defeat its purpose. If you do not have access to a compatible outlet, have a qualified electrician install one.
• When you want to unplug the power cord, be sure to disconnect it by the plug head, not by its wire.
• Make sure the socket and any extension cord(s) you use can support the total current load of all the connected devices.
• Before cleaning the computer, make sure it is disconnected from any external power supplies.
Use only approved brands of
peripherals. Unplug the power cord before attaching peripheral devices.
Do not plug in the power
cord if you are wet. Do not use the power cord if it is broken. Do not place heavy objects on the power cord.

Power Safety
Warning
Before you undertake
any upgrade proce-
dures, make sure that
you have turned off the
power, and discon-
nected all peripherals
and cables (including
telephone lines). It is
advisable to also re-
move your battery in
order to prevent acci-
dentally turning the
machine on.

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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 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 recommend-
ed by the manufacturer. Discard used battery according to the manufacturer’s instructions.

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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 pro-
gram. It also describes the installation and operation of the utility programs provided with the notebook PC.

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Contents
Introduction ..............................................1-1
Overview .........................................................................................1-1
System Specifications .....................................................................1-2
External Locator - Top View with LCD Panel Open ......................1-5
External Locator - Front & Rear Views ..........................................1-6
External Locator - Left & Right Side View ....................................1-7
External Locator - Bottom View .....................................................1-8
M720S Mainboard Overview - Top (Key Parts) .............................1-9
M720S Mainboard Overview - Bottom (Key Parts) .....................1-10
M720S Mainboard Overview - Top (Connectors) ........................1-11
M720S Mainboard Overview - Bottom (Connectors) ...................1-12
Disassembly ...............................................2-1
Overview .........................................................................................2-1
Maintenance Tools ..........................................................................2-2
Connections .....................................................................................2-2
Maintenance Precautions .................................................................2-3
Removing the Battery ......................................................................2-5
Removing the Hard Disk Drive .......................................................2-6
Removing the System Memory (RAM) ..........................................2-8
Removing the Processor ................................................................2-10
Removing the Wireless LAN Module ...........................................2-12
Removing the Bluetooth Module ..................................................2-13
Removing the Optical (CD/DVD) Device ....................................2-14
Removing the Keyboard ................................................................2-15
Removing the Modem ...................................................................2-16
Part Lists ..................................................A-1
Part List Illustration Location ........................................................A-2
Top with Fingerprint (M720S) .......................................................A-3
Top without Fingerprint (M720S) ..................................................A-4
Bottom (M720S) ............................................................................ A-5
LCD (M720S) ................................................................................ A-6
COMBO ......................................................................................... A-7
DVD- DUAL-RW .......................................................................... A-8
HDD ............................................................................................... A-9
Schematic Diagrams.................................B-1
SYSTEM BLOCK DIAGRAM ......................................................B-2
Merom(Socket-M)1/2 .....................................................................B-3
Merom(Socket-M)2/2 .....................................................................B-4
SiSM671 HOST PCIE 1/5 ..............................................................B-5
SiSM671 DRAM 2/5 ......................................................................B-6
SiSM671 MuTIOL VGA 3/5 .........................................................B-7
SiSM671 PWR 4/5 .........................................................................B-8
SiSM671 GND 5/5 .........................................................................B-9
DDRII SO-DIMM 1 .....................................................................B-10
DDRII SO-DIMM 2 .....................................................................B-11
SiS307ELV ...................................................................................B-12
PANEL, INVERTER, CRT ..........................................................B-13
968 PCI IDE MuTIOL SPI 1/4 .....................................................B-14
968 PCIE LAN GPIO 2/4 .............................................................B-15
968 USB SATA 3/4 ......................................................................B-16
968 PWR GND 4/4 .......................................................................B-17
CLK GEN & CLK BUFFER ........................................................B-18
SATA, 3G POWER, PCI DEBUG ...............................................B-19
MULTI I/O, ODD, CCD, BT .......................................................B-20
NEW CARD, MINI PCIE, USB ...................................................B-21
LED, FAN, PC BEEP, TP, FP ......................................................B-22
ENE MR510, 7 IN 1 .....................................................................B-23
PHY REALTEK 8201CL .............................................................B-24
AUDIO CODEC ALC883 ............................................................B-25

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AUDIO AMP ...............................................................................B-26
KBC-ITE IT8512E .......................................................................B-27
SYSTEM POWER .......................................................................B-28
VCORE ........................................................................................B-29
VDD3, VDD5 ...............................................................................B-30
1.05VS, 1.2V, 1.5V ......................................................................B-31
1.8V, 0.9VS ..................................................................................B-32
AC IN, CHARGER ......................................................................B-33
CLICK BOARD ...........................................................................B-34
MULTI I/O BOARD 1/2 ..............................................................B-35
MULTI I/O BOARD 2/2 ..............................................................B-36
BIOS BOARD ..............................................................................B-37
FINGERPRINT BOARD .............................................................B-38

Introduction
Overview 1 - 1
1.Introduction
Chapter 1: Introduction
Overview
This manual covers the information you need to service or upgrade the M720S series notebook computer. Information
about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about driv-
ers (e.g. VGA & audio) is also found in User’s Manual. That manual is shipped with the computer.
Operating systems (e.g. Windows XP, Windows Vista, etc.) have their own manuals as do application software (e.g. word
processing and database programs). If you have questions about those programs, you should consult those manuals.
The M720S series notebook is designed to be upgradeable. See “Disassembly” on page 2 - 1 for a detailed description
of the upgrade procedures for each specific component. Please note the warning and safety information indicated by the
“” symbol.
The balance of this chapter reviews the computer’s technical specifications and features.

Introduction
1 - 2 System Specifications
1.Introduction
System Specifications
Feature Specification
Processor Intel® Core™2 Duo Processor
(478-pin) Micro-FC-PGA Package
T7200/ T7400/ T7600
65nm (65 Nanometer) Process Technology
4MB On-die L2 Cache & 667MHz FSB
2.0/ 2.16/ 2.33 GHz
Intel® Core™2 Duo Processor
(478-pin) Micro-FC-PGA Package
T5500/ T5600
65nm (65 Nanometer) Process Technology
2MB On-die L2 Cache & 667MHz FSB
1.66/ 1.83 GHz
Intel® Core™ Duo Processor
(478-pin) Micro-FC-PGA Package
T2300/ T2400/ T2500/ T2600/ T2700
65nm (65 Nanometer) Process Technology
2MB On-die L2 Cache & 667MHz FSB
1.66/ 1.83/ 2.0/ 2.16/ 2.33 GHz
Intel® Celeron® M Processor
(478-pin) Micro-FCPGA Package
410/ 420/ 430/ 440/ 450
65nm (65 Nanometer) Process Technology
1MB On-die L2 Cache & 533MHz FSB
1.46/ 1.60/ 1.73/ 1.86/ 2.0 GHz
Core Logic SiS M671 + SiS968 Chipset
LCD Options 12.1" WXGA (1280 * 800) Glare / Non Glare TFT LCD
Memory Two 200 Pin SO-DIMM Sockets Supporting DDRII (DDR2) 533/667 MHz
Memory Expandable up to 4GB
Video Adapter SiS M671 Integrated Video
High Performance 2D/3D Graphics Accelerator
Shared Memory Architecture up to 256MB
Supports Microsoft DirectX 9.0
Supports Vertex Shader 2.0 and Pixel Shader 2.0
Security Security (Kensington® Type) Lock Slot
Fingerprint ID Reader Module (Factory Option)BIOS Password
BIOS One 8Mb SPI Flash ROM Phoenix™ BIOS

Introduction
System Specifications 1 - 3
1.Introduction
Storage One Changeable 12.7mm(h) Optical Device (CD/DVD) Type Drive (see “Optional” on page 1 - 4 for drive
options)
Easy Changeable 2.5" 9.5 mm (h) SATA (Serial) HDD
Audio Intel High Definition Audio Compliant Interface
Compliant with Microsoft UAA (Universal Audio
Architecture)
Direct Sound 3D™ Compatible
EAX™ 1.0 & 2.0 Compatible
A3D™ Compatible
S/PDIF Digital Output
2 * Built-In Speakers
Built-In Microphone
Keyboard &
Pointing Device Winkey Keyboard Built-In TouchPad with Scrolling Function
Interface Three USB 2.0 Ports
One Headphone-Out Jack
One Microphone-In Jack
One S/PDIF Out Jack
One Internal Microphone
One RJ-11 Modem Jack
One RJ-45 LAN Jack
One DC-in Jack
One External Monitor Port
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
ExpressCard
Slot One ExpressCard/34(54) Slot
Communication 10M/100Mb Base-T Ethernet LAN
56K MDC Modem V.90 & V.92 Compliant
802.11 b/g USB Wireless LAN Module (Option)
300K, 1.3M or 2.0M Pixel USB PC Camera Module (Factory Option)
Bluetooth OR 3.5G Module Options:
*Bluetooth 2.0 + EDR (Enhanced Data Rate) Module (Factory Option)
OR
*UMTS/HSPDA-based 3.5G Module with Mini Card Interface (Factory Option)
Quad-band GSM/GPRS (850 MHz, 900 MHz,1800 MHz,1900 MHz)
UMTS WCDMA FDD (2100 MHz)
UMTS WCDMA FDD (850 MHz, 1900 MHz)
Feature Specification

Introduction
1 - 4 System Specifications
1.Introduction
Power Manage-
ment Supports ACPI 3.0
Power Full Range AC/DC Adapter AC input 100 - 240V, 50 - 60Hz, DC Output 19V, 3.42A or 18.5V,3.5A (65
Watts)
Battery 4 Cell Smart Lithium-Ion Battery Pack, 14.8V/2.4AH
4 Cell Smart Lithium-Ion Battery Pack, 14.4V/2.4AH (Option)
8 Cell Smart Lithium-Ion Battery Pack, 14.8V/4.4AH (Option)
Environmental
Spec Temperature Operating: 5°C - 35°C
Non-Operating: -20°C - 60°C
Relative Humidity
Operating: 20% - 80%
Non-Operating: 10% - 90%
Dimensions
& Weight 299mm (w) * 219mm (d) * 26.5-35.7mm (h) 1.8 kg With 4 Cell Battery and ODD
Optional
*Note: The Blue-
tooth and 3.5G
Optional Mod-
ules cannot
coexist. if one of
the factory
options is
included in your
purchase option,
then the other is
unavailable.
Optical Drive Module Options:
DVD/CD-RW Combo Drive Module
Super Multi Drive Module
USB Floppy Disk Drive
802.11 b/g USB Wireless LAN Module
8 Cell Smart Lithium-Ion Battery Pack
300K, 1.3M or 2.0M Pixel USB PC Camera Module
(Factory Option)
Fingerprint ID Reader Module (Factory Option)
Bluetooth OR 3.5G Module Options:
*Bluetooth 2.0 + EDR (Enhanced Data Rate) Mod-
ule (Factory Option)
OR
*UMTS/HSPDA-based 3.5G Module with Mini Card
Interface (Factory Option)
Quad-band GSM/GPRS (850 MHz, 900 MHz,1800
MHz,1900 MHz)
UMTS WCDMA FDD (2100 MHz)
UMTS WCDMA FDD (850 MHz, 1900 MHz)
Feature Specification

Introduction
External Locator - Top View with LCD Panel Open 1 - 5
1.Introduction
External Locator - Top View with LCD Panel Open
Figure 1
Top View
1. Built-In PC
Camera (Optional)
2. LCD
3. Speakers
4. Power Button
5. Hot Key Buttons
6. LED Status
Indicators
7. Keyboard
8. Touchpad &
Buttons
9. LED Power &
Communication
Indicators
10.Fingerprint Module
(Optional)
11. Built-In
Microphone
2
5
1
7
8
4
6
9
3
3
11
10
6
5

Introduction
1 - 6 External Locator - Front & Rear Views
1.Introduction
External Locator - Front & Rear Views
Figure 2
Front Views
1. LCD Latches
2. LED Power &
Communication
Indicators
3. 7-in-1 Card
Reader
4. S/PDIF-Out Jack
5. Microphone-In
Jack
6. Headphone-Out
Jack
Figure 3
Rear Views
1. Battery
2
5
4
11
6
3
1

Introduction
External Locator - Left & Right Side View 1 - 7
1.Introduction
External Locator - Left & Right Side View
15
24
35
6
Figure 4
Left Side View
1. DC-In Jack
2. RJ-45 LAN Jack
3. External Monitor
Port
4. Vent/Fan Intake/
Outlet
5. 2 * USB 2.0 Ports
6. Express Card Slot
Figure 5
Right Side View
1. Optical Device
Drive Bay
2. USB 2.0 Port
3. RJ-11 Phone Jack
4. Security Lock Slot
124
3

Introduction
1 - 8 External Locator - Bottom View
1.Introduction
External Locator - Bottom View
Figure 6
Bottom View
1. Battery
2. Hard Disk Bay
Cover
(3.5G Module
Location)
3. RAM & CPU Bay
Cover

Overheating
To prevent your com-
puter from overheating
make sure nothing
blocks the vent/fan in-
takes while the com-
puter is in use.
2
3
1